From 2d55c386371d094e542fe96e90ba4ff3c2278fe3 Mon Sep 17 00:00:00 2001 From: "Anthony G. Basile" Date: Thu, 15 Sep 2011 13:56:05 -0400 Subject: Grsec/PaX: grsecurity-2.2.2-2.6.32.46-201109150655 + grsecurity-2.2.2-3.0.4-201109150655 --- 3.0.4/0000_README | 2 +- .../4420_grsecurity-2.2.2-3.0.4-201109011725.patch | 73044 ------------------ .../4420_grsecurity-2.2.2-3.0.4-201109150655.patch | 73361 +++++++++++++++++++ 3.0.4/4423_grsec-remove-protected-paths.patch | 18 +- 4 files changed, 73370 insertions(+), 73055 deletions(-) delete mode 100644 3.0.4/4420_grsecurity-2.2.2-3.0.4-201109011725.patch create mode 100644 3.0.4/4420_grsecurity-2.2.2-3.0.4-201109150655.patch (limited to '3.0.4') diff --git a/3.0.4/0000_README b/3.0.4/0000_README index af75e4e..2fff4cc 100644 --- a/3.0.4/0000_README +++ b/3.0.4/0000_README @@ -3,7 +3,7 @@ README Individual Patch Descriptions: ----------------------------------------------------------------------------- -Patch: 4420_grsecurity-2.2.2-3.0.4-201109011725.patch +Patch: 4420_grsecurity-2.2.2-3.0.4-201109150655.patch From: http://www.grsecurity.net Desc: hardened-sources base patch from upstream grsecurity diff --git a/3.0.4/4420_grsecurity-2.2.2-3.0.4-201109011725.patch b/3.0.4/4420_grsecurity-2.2.2-3.0.4-201109011725.patch deleted file mode 100644 index 1e39265..0000000 --- a/3.0.4/4420_grsecurity-2.2.2-3.0.4-201109011725.patch +++ /dev/null @@ -1,73044 +0,0 @@ -diff -urNp linux-3.0.4/arch/alpha/include/asm/elf.h linux-3.0.4/arch/alpha/include/asm/elf.h ---- linux-3.0.4/arch/alpha/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -90,6 +90,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x1000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality & ADDR_LIMIT_32BIT ? 0x10000 : 0x120000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (current->personality & ADDR_LIMIT_32BIT ? 14 : 19) -+#endif -+ - /* $0 is set by ld.so to a pointer to a function which might be - registered using atexit. This provides a mean for the dynamic - linker to call DT_FINI functions for shared libraries that have -diff -urNp linux-3.0.4/arch/alpha/include/asm/pgtable.h linux-3.0.4/arch/alpha/include/asm/pgtable.h ---- linux-3.0.4/arch/alpha/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -101,6 +101,17 @@ struct vm_area_struct; - #define PAGE_SHARED __pgprot(_PAGE_VALID | __ACCESS_BITS) - #define PAGE_COPY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) - #define PAGE_READONLY __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOE) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_VALID | __ACCESS_BITS | _PAGE_FOW | _PAGE_FOE) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_VALID | _PAGE_ASM | _PAGE_KRE | _PAGE_KWE) - - #define _PAGE_NORMAL(x) __pgprot(_PAGE_VALID | __ACCESS_BITS | (x)) -diff -urNp linux-3.0.4/arch/alpha/kernel/module.c linux-3.0.4/arch/alpha/kernel/module.c ---- linux-3.0.4/arch/alpha/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,7 +182,7 @@ apply_relocate_add(Elf64_Shdr *sechdrs, - - /* The small sections were sorted to the end of the segment. - The following should definitely cover them. */ -- gp = (u64)me->module_core + me->core_size - 0x8000; -+ gp = (u64)me->module_core_rw + me->core_size_rw - 0x8000; - got = sechdrs[me->arch.gotsecindex].sh_addr; - - for (i = 0; i < n; i++) { -diff -urNp linux-3.0.4/arch/alpha/kernel/osf_sys.c linux-3.0.4/arch/alpha/kernel/osf_sys.c ---- linux-3.0.4/arch/alpha/kernel/osf_sys.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/kernel/osf_sys.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1145,7 +1145,7 @@ arch_get_unmapped_area_1(unsigned long a - /* At this point: (!vma || addr < vma->vm_end). */ - if (limit - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = vma->vm_end; - vma = vma->vm_next; -@@ -1181,6 +1181,10 @@ arch_get_unmapped_area(struct file *filp - merely specific addresses, but regions of memory -- perhaps - this feature should be incorporated into all ports? */ - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = arch_get_unmapped_area_1 (PAGE_ALIGN(addr), len, limit); - if (addr != (unsigned long) -ENOMEM) -@@ -1188,8 +1192,8 @@ arch_get_unmapped_area(struct file *filp - } - - /* Next, try allocating at TASK_UNMAPPED_BASE. */ -- addr = arch_get_unmapped_area_1 (PAGE_ALIGN(TASK_UNMAPPED_BASE), -- len, limit); -+ addr = arch_get_unmapped_area_1 (PAGE_ALIGN(current->mm->mmap_base), len, limit); -+ - if (addr != (unsigned long) -ENOMEM) - return addr; - -diff -urNp linux-3.0.4/arch/alpha/mm/fault.c linux-3.0.4/arch/alpha/mm/fault.c ---- linux-3.0.4/arch/alpha/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/alpha/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -54,6 +54,124 @@ __load_new_mm_context(struct mm_struct * - __reload_thread(pcb); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int ldah, ldq, jmp; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(ldq, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmp, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (ldq & 0xFFFF0000U) == 0xA77B0000U && -+ jmp == 0x6BFB0000U) -+ { -+ unsigned long r27, addr; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = ldq | 0xFFFFFFFFFFFF0000UL; -+ -+ addr = regs->r27 + ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ err = get_user(r27, (unsigned long *)addr); -+ if (err) -+ break; -+ -+ regs->r27 = r27; -+ regs->pc = r27; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #2 */ -+ unsigned int ldah, lda, br; -+ -+ err = get_user(ldah, (unsigned int *)regs->pc); -+ err |= get_user(lda, (unsigned int *)(regs->pc+4)); -+ err |= get_user(br, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((ldah & 0xFFFF0000U) == 0x277B0000U && -+ (lda & 0xFFFF0000U) == 0xA77B0000U && -+ (br & 0xFFE00000U) == 0xC3E00000U) -+ { -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL; -+ unsigned long addrh = (ldah | 0xFFFFFFFFFFFF0000UL) << 16; -+ unsigned long addrl = lda | 0xFFFFFFFFFFFF0000UL; -+ -+ regs->r27 += ((addrh ^ 0x80000000UL) + 0x80000000UL) + ((addrl ^ 0x8000UL) + 0x8000UL); -+ regs->pc += 12 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int br; -+ -+ err = get_user(br, (unsigned int *)regs->pc); -+ -+ if (!err && (br & 0xFFE00000U) == 0xC3800000U) { -+ unsigned int br2, ldq, nop, jmp; -+ unsigned long addr = br | 0xFFFFFFFFFFE00000UL, resolver; -+ -+ addr = regs->pc + 4 + (((addr ^ 0x00100000UL) + 0x00100000UL) << 2); -+ err = get_user(br2, (unsigned int *)addr); -+ err |= get_user(ldq, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ err |= get_user(jmp, (unsigned int *)(addr+12)); -+ err |= get_user(resolver, (unsigned long *)(addr+16)); -+ -+ if (err) -+ break; -+ -+ if (br2 == 0xC3600000U && -+ ldq == 0xA77B000CU && -+ nop == 0x47FF041FU && -+ jmp == 0x6B7B0000U) -+ { -+ regs->r28 = regs->pc+4; -+ regs->r27 = addr+16; -+ regs->pc = resolver; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif - - /* - * This routine handles page faults. It determines the address, -@@ -131,8 +249,29 @@ do_page_fault(unsigned long address, uns - good_area: - si_code = SEGV_ACCERR; - if (cause < 0) { -- if (!(vma->vm_flags & VM_EXEC)) -+ if (!(vma->vm_flags & VM_EXEC)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->pc) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)rdusp()); -+ do_group_exit(SIGKILL); -+#else - goto bad_area; -+#endif -+ -+ } - } else if (!cause) { - /* Allow reads even for write-only mappings */ - if (!(vma->vm_flags & (VM_READ | VM_WRITE))) -diff -urNp linux-3.0.4/arch/arm/include/asm/elf.h linux-3.0.4/arch/arm/include/asm/elf.h ---- linux-3.0.4/arch/arm/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -116,7 +116,14 @@ int dump_task_regs(struct task_struct *t - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00008000UL -+ -+#define PAX_DELTA_MMAP_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#define PAX_DELTA_STACK_LEN ((current->personality == PER_LINUX_32BIT) ? 16 : 10) -+#endif - - /* When the program starts, a1 contains a pointer to a function to be - registered with atexit, as per the SVR4 ABI. A value of 0 means we -@@ -126,10 +133,6 @@ int dump_task_regs(struct task_struct *t - extern void elf_set_personality(const struct elf32_hdr *); - #define SET_PERSONALITY(ex) elf_set_personality(&(ex)) - --struct mm_struct; --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - extern int vectors_user_mapping(void); - #define arch_setup_additional_pages(bprm, uses_interp) vectors_user_mapping() - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES -diff -urNp linux-3.0.4/arch/arm/include/asm/kmap_types.h linux-3.0.4/arch/arm/include/asm/kmap_types.h ---- linux-3.0.4/arch/arm/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -21,6 +21,7 @@ enum km_type { - KM_L1_CACHE, - KM_L2_CACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/arm/include/asm/uaccess.h linux-3.0.4/arch/arm/include/asm/uaccess.h ---- linux-3.0.4/arch/arm/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -22,6 +22,8 @@ - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The exception table consists of pairs of addresses: the first is the - * address of an instruction that is allowed to fault, and the second is -@@ -387,8 +389,23 @@ do { \ - - - #ifdef CONFIG_MMU --extern unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n); --extern unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n); -+extern unsigned long __must_check ___copy_from_user(void *to, const void __user *from, unsigned long n); -+extern unsigned long __must_check ___copy_to_user(void __user *to, const void *from, unsigned long n); -+ -+static inline unsigned long __must_check __copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ return ___copy_from_user(to, from, n); -+} -+ -+static inline unsigned long __must_check __copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ return ___copy_to_user(to, from, n); -+} -+ - extern unsigned long __must_check __copy_to_user_std(void __user *to, const void *from, unsigned long n); - extern unsigned long __must_check __clear_user(void __user *addr, unsigned long n); - extern unsigned long __must_check __clear_user_std(void __user *addr, unsigned long n); -@@ -403,6 +420,9 @@ extern unsigned long __must_check __strn - - static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_READ, from, n)) - n = __copy_from_user(to, from, n); - else /* security hole - plug it */ -@@ -412,6 +432,9 @@ static inline unsigned long __must_check - - static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -diff -urNp linux-3.0.4/arch/arm/kernel/armksyms.c linux-3.0.4/arch/arm/kernel/armksyms.c ---- linux-3.0.4/arch/arm/kernel/armksyms.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/armksyms.c 2011-08-23 21:47:55.000000000 -0400 -@@ -98,8 +98,8 @@ EXPORT_SYMBOL(__strncpy_from_user); - #ifdef CONFIG_MMU - EXPORT_SYMBOL(copy_page); - --EXPORT_SYMBOL(__copy_from_user); --EXPORT_SYMBOL(__copy_to_user); -+EXPORT_SYMBOL(___copy_from_user); -+EXPORT_SYMBOL(___copy_to_user); - EXPORT_SYMBOL(__clear_user); - - EXPORT_SYMBOL(__get_user_1); -diff -urNp linux-3.0.4/arch/arm/kernel/process.c linux-3.0.4/arch/arm/kernel/process.c ---- linux-3.0.4/arch/arm/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -28,7 +28,6 @@ - #include - #include - #include --#include - #include - - #include -@@ -479,12 +478,6 @@ unsigned long get_wchan(struct task_stru - return 0; - } - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -- - #ifdef CONFIG_MMU - /* - * The vectors page is always readable from user space for the -diff -urNp linux-3.0.4/arch/arm/kernel/traps.c linux-3.0.4/arch/arm/kernel/traps.c ---- linux-3.0.4/arch/arm/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/kernel/traps.c 2011-08-23 21:48:14.000000000 -0400 -@@ -257,6 +257,8 @@ static int __die(const char *str, int er - - static DEFINE_SPINLOCK(die_lock); - -+extern void gr_handle_kernel_exploit(void); -+ - /* - * This function is protected against re-entrancy. - */ -@@ -284,6 +286,9 @@ void die(const char *str, struct pt_regs - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -+ -+ gr_handle_kernel_exploit(); -+ - if (ret != NOTIFY_STOP) - do_exit(SIGSEGV); - } -diff -urNp linux-3.0.4/arch/arm/lib/copy_from_user.S linux-3.0.4/arch/arm/lib/copy_from_user.S ---- linux-3.0.4/arch/arm/lib/copy_from_user.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/copy_from_user.S 2011-08-23 21:47:55.000000000 -0400 -@@ -16,7 +16,7 @@ - /* - * Prototype: - * -- * size_t __copy_from_user(void *to, const void *from, size_t n) -+ * size_t ___copy_from_user(void *to, const void *from, size_t n) - * - * Purpose: - * -@@ -84,11 +84,11 @@ - - .text - --ENTRY(__copy_from_user) -+ENTRY(___copy_from_user) - - #include "copy_template.S" - --ENDPROC(__copy_from_user) -+ENDPROC(___copy_from_user) - - .pushsection .fixup,"ax" - .align 0 -diff -urNp linux-3.0.4/arch/arm/lib/copy_to_user.S linux-3.0.4/arch/arm/lib/copy_to_user.S ---- linux-3.0.4/arch/arm/lib/copy_to_user.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/copy_to_user.S 2011-08-23 21:47:55.000000000 -0400 -@@ -16,7 +16,7 @@ - /* - * Prototype: - * -- * size_t __copy_to_user(void *to, const void *from, size_t n) -+ * size_t ___copy_to_user(void *to, const void *from, size_t n) - * - * Purpose: - * -@@ -88,11 +88,11 @@ - .text - - ENTRY(__copy_to_user_std) --WEAK(__copy_to_user) -+WEAK(___copy_to_user) - - #include "copy_template.S" - --ENDPROC(__copy_to_user) -+ENDPROC(___copy_to_user) - ENDPROC(__copy_to_user_std) - - .pushsection .fixup,"ax" -diff -urNp linux-3.0.4/arch/arm/lib/uaccess.S linux-3.0.4/arch/arm/lib/uaccess.S ---- linux-3.0.4/arch/arm/lib/uaccess.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/uaccess.S 2011-08-23 21:47:55.000000000 -0400 -@@ -20,7 +20,7 @@ - - #define PAGE_SHIFT 12 - --/* Prototype: int __copy_to_user(void *to, const char *from, size_t n) -+/* Prototype: int ___copy_to_user(void *to, const char *from, size_t n) - * Purpose : copy a block to user memory from kernel memory - * Params : to - user memory - * : from - kernel memory -@@ -40,7 +40,7 @@ USER( T(strgtb) r3, [r0], #1) @ May f - sub r2, r2, ip - b .Lc2u_dest_aligned - --ENTRY(__copy_to_user) -+ENTRY(___copy_to_user) - stmfd sp!, {r2, r4 - r7, lr} - cmp r2, #4 - blt .Lc2u_not_enough -@@ -278,14 +278,14 @@ USER( T(strgeb) r3, [r0], #1) @ May f - ldrgtb r3, [r1], #0 - USER( T(strgtb) r3, [r0], #1) @ May fault - b .Lc2u_finished --ENDPROC(__copy_to_user) -+ENDPROC(___copy_to_user) - - .pushsection .fixup,"ax" - .align 0 - 9001: ldmfd sp!, {r0, r4 - r7, pc} - .popsection - --/* Prototype: unsigned long __copy_from_user(void *to,const void *from,unsigned long n); -+/* Prototype: unsigned long ___copy_from_user(void *to,const void *from,unsigned long n); - * Purpose : copy a block from user memory to kernel memory - * Params : to - kernel memory - * : from - user memory -@@ -304,7 +304,7 @@ USER( T(ldrgtb) r3, [r1], #1) @ May f - sub r2, r2, ip - b .Lcfu_dest_aligned - --ENTRY(__copy_from_user) -+ENTRY(___copy_from_user) - stmfd sp!, {r0, r2, r4 - r7, lr} - cmp r2, #4 - blt .Lcfu_not_enough -@@ -544,7 +544,7 @@ USER( T(ldrgeb) r3, [r1], #1) @ May f - USER( T(ldrgtb) r3, [r1], #1) @ May fault - strgtb r3, [r0], #1 - b .Lcfu_finished --ENDPROC(__copy_from_user) -+ENDPROC(___copy_from_user) - - .pushsection .fixup,"ax" - .align 0 -diff -urNp linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c ---- linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/lib/uaccess_with_memcpy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -103,7 +103,7 @@ out: - } - - unsigned long --__copy_to_user(void __user *to, const void *from, unsigned long n) -+___copy_to_user(void __user *to, const void *from, unsigned long n) - { - /* - * This test is stubbed out of the main function above to keep -diff -urNp linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c ---- linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mach-ux500/mbox-db5500.c 2011-08-23 21:48:14.000000000 -0400 -@@ -168,7 +168,7 @@ static ssize_t mbox_read_fifo(struct dev - return sprintf(buf, "0x%X\n", mbox_value); - } - --static DEVICE_ATTR(fifo, S_IWUGO | S_IRUGO, mbox_read_fifo, mbox_write_fifo); -+static DEVICE_ATTR(fifo, S_IWUSR | S_IRUGO, mbox_read_fifo, mbox_write_fifo); - - static int mbox_show(struct seq_file *s, void *data) - { -diff -urNp linux-3.0.4/arch/arm/mm/fault.c linux-3.0.4/arch/arm/mm/fault.c ---- linux-3.0.4/arch/arm/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,6 +182,13 @@ __do_user_fault(struct task_struct *tsk, - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (fsr & FSR_LNX_PF) { -+ pax_report_fault(regs, (void *)regs->ARM_pc, (void *)regs->ARM_sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - tsk->thread.address = addr; - tsk->thread.error_code = fsr; - tsk->thread.trap_no = 14; -@@ -379,6 +386,33 @@ do_page_fault(unsigned long addr, unsign - } - #endif /* CONFIG_MMU */ - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (__force unsigned char __user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-4: "); -+ for (i = -1; i < 20; i++) { -+ unsigned long c; -+ if (get_user(c, (__force unsigned long __user *)sp+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08lx ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * First Level Translation Fault Handler - * -diff -urNp linux-3.0.4/arch/arm/mm/mmap.c linux-3.0.4/arch/arm/mm/mmap.c ---- linux-3.0.4/arch/arm/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/arm/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,10 @@ arch_get_unmapped_area(struct file *filp - if (len > TASK_SIZE) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -72,15 +76,14 @@ arch_get_unmapped_area(struct file *filp - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - /* 8 bits of randomness in 20 address space bits */ - if ((current->flags & PF_RANDOMIZE) && -@@ -100,14 +103,14 @@ full_search: - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -diff -urNp linux-3.0.4/arch/avr32/include/asm/elf.h linux-3.0.4/arch/avr32/include/asm/elf.h ---- linux-3.0.4/arch/avr32/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -84,8 +84,14 @@ typedef struct user_fpu_struct elf_fpreg - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --#define ELF_ET_DYN_BASE (2 * TASK_SIZE / 3) -+#define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x00001000UL -+ -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -diff -urNp linux-3.0.4/arch/avr32/include/asm/kmap_types.h linux-3.0.4/arch/avr32/include/asm/kmap_types.h ---- linux-3.0.4/arch/avr32/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -22,7 +22,8 @@ D(10) KM_IRQ0, - D(11) KM_IRQ1, - D(12) KM_SOFTIRQ0, - D(13) KM_SOFTIRQ1, --D(14) KM_TYPE_NR -+D(14) KM_CLEARPAGE, -+D(15) KM_TYPE_NR - }; - - #undef D -diff -urNp linux-3.0.4/arch/avr32/mm/fault.c linux-3.0.4/arch/avr32/mm/fault.c ---- linux-3.0.4/arch/avr32/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/avr32/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -41,6 +41,23 @@ static inline int notify_page_fault(stru - - int exception_trace = 1; - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (unsigned char *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address and the - * problem, and then passes it off to one of the appropriate routines. -@@ -156,6 +173,16 @@ bad_area: - up_read(&mm->mmap_sem); - - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+ if (ecr == ECR_PROTECTION_X || ecr == ECR_TLB_MISS_X) { -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - if (exception_trace && printk_ratelimit()) - printk("%s%s[%d]: segfault at %08lx pc %08lx " - "sp %08lx ecr %lu\n", -diff -urNp linux-3.0.4/arch/frv/include/asm/kmap_types.h linux-3.0.4/arch/frv/include/asm/kmap_types.h ---- linux-3.0.4/arch/frv/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/frv/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/frv/mm/elf-fdpic.c linux-3.0.4/arch/frv/mm/elf-fdpic.c ---- linux-3.0.4/arch/frv/mm/elf-fdpic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/frv/mm/elf-fdpic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -73,8 +73,7 @@ unsigned long arch_get_unmapped_area(str - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(current->mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - goto success; - } - -@@ -89,7 +88,7 @@ unsigned long arch_get_unmapped_area(str - for (; vma; vma = vma->vm_next) { - if (addr > limit) - break; -- if (addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - goto success; - addr = vma->vm_end; - } -@@ -104,7 +103,7 @@ unsigned long arch_get_unmapped_area(str - for (; vma; vma = vma->vm_next) { - if (addr > limit) - break; -- if (addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - goto success; - addr = vma->vm_end; - } -diff -urNp linux-3.0.4/arch/ia64/include/asm/elf.h linux-3.0.4/arch/ia64/include/asm/elf.h ---- linux-3.0.4/arch/ia64/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -42,6 +42,13 @@ - */ - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x800000000UL) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (current->personality == PER_LINUX32 ? 0x08048000UL : 0x4000000000000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#define PAX_DELTA_STACK_LEN (current->personality == PER_LINUX32 ? 16 : 3*PAGE_SHIFT - 13) -+#endif -+ - #define PT_IA_64_UNWIND 0x70000001 - - /* IA-64 relocations: */ -diff -urNp linux-3.0.4/arch/ia64/include/asm/pgtable.h linux-3.0.4/arch/ia64/include/asm/pgtable.h ---- linux-3.0.4/arch/ia64/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -12,7 +12,7 @@ - * David Mosberger-Tang - */ - -- -+#include - #include - #include - #include -@@ -143,6 +143,17 @@ - #define PAGE_READONLY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) - #define PAGE_COPY_EXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RX) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_RW) -+# define PAGE_READONLY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+# define PAGE_COPY_NOEXEC __pgprot(__ACCESS_BITS | _PAGE_PL_3 | _PAGE_AR_R) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+# define PAGE_COPY_NOEXEC PAGE_COPY -+#endif -+ - #define PAGE_GATE __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_X_RX) - #define PAGE_KERNEL __pgprot(__DIRTY_BITS | _PAGE_PL_0 | _PAGE_AR_RWX) - #define PAGE_KERNELRX __pgprot(__ACCESS_BITS | _PAGE_PL_0 | _PAGE_AR_RX) -diff -urNp linux-3.0.4/arch/ia64/include/asm/spinlock.h linux-3.0.4/arch/ia64/include/asm/spinlock.h ---- linux-3.0.4/arch/ia64/include/asm/spinlock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/spinlock.h 2011-08-23 21:47:55.000000000 -0400 -@@ -72,7 +72,7 @@ static __always_inline void __ticket_spi - unsigned short *p = (unsigned short *)&lock->lock + 1, tmp; - - asm volatile ("ld2.bias %0=[%1]" : "=r"(tmp) : "r"(p)); -- ACCESS_ONCE(*p) = (tmp + 2) & ~1; -+ ACCESS_ONCE_RW(*p) = (tmp + 2) & ~1; - } - - static __always_inline void __ticket_spin_unlock_wait(arch_spinlock_t *lock) -diff -urNp linux-3.0.4/arch/ia64/include/asm/uaccess.h linux-3.0.4/arch/ia64/include/asm/uaccess.h ---- linux-3.0.4/arch/ia64/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -257,7 +257,7 @@ __copy_from_user (void *to, const void _ - const void *__cu_from = (from); \ - long __cu_len = (n); \ - \ -- if (__access_ok(__cu_to, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_to, __cu_len, get_fs())) \ - __cu_len = __copy_user(__cu_to, (__force void __user *) __cu_from, __cu_len); \ - __cu_len; \ - }) -@@ -269,7 +269,7 @@ __copy_from_user (void *to, const void _ - long __cu_len = (n); \ - \ - __chk_user_ptr(__cu_from); \ -- if (__access_ok(__cu_from, __cu_len, get_fs())) \ -+ if (__cu_len > 0 && __cu_len <= INT_MAX && __access_ok(__cu_from, __cu_len, get_fs())) \ - __cu_len = __copy_user((__force void __user *) __cu_to, __cu_from, __cu_len); \ - __cu_len; \ - }) -diff -urNp linux-3.0.4/arch/ia64/kernel/module.c linux-3.0.4/arch/ia64/kernel/module.c ---- linux-3.0.4/arch/ia64/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -315,8 +315,7 @@ module_alloc (unsigned long size) - void - module_free (struct module *mod, void *module_region) - { -- if (mod && mod->arch.init_unw_table && -- module_region == mod->module_init) { -+ if (mod && mod->arch.init_unw_table && module_region == mod->module_init_rx) { - unw_remove_unwind_table(mod->arch.init_unw_table); - mod->arch.init_unw_table = NULL; - } -@@ -502,15 +501,39 @@ module_frob_arch_sections (Elf_Ehdr *ehd - } - - static inline int -+in_init_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rx < mod->init_size_rx; -+} -+ -+static inline int -+in_init_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_init_rw < mod->init_size_rw; -+} -+ -+static inline int - in_init (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_init < mod->init_size; -+ return in_init_rx(mod, addr) || in_init_rw(mod, addr); -+} -+ -+static inline int -+in_core_rx (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rx < mod->core_size_rx; -+} -+ -+static inline int -+in_core_rw (const struct module *mod, uint64_t addr) -+{ -+ return addr - (uint64_t) mod->module_core_rw < mod->core_size_rw; - } - - static inline int - in_core (const struct module *mod, uint64_t addr) - { -- return addr - (uint64_t) mod->module_core < mod->core_size; -+ return in_core_rx(mod, addr) || in_core_rw(mod, addr); - } - - static inline int -@@ -693,7 +716,14 @@ do_reloc (struct module *mod, uint8_t r_ - break; - - case RV_BDREL: -- val -= (uint64_t) (in_init(mod, val) ? mod->module_init : mod->module_core); -+ if (in_init_rx(mod, val)) -+ val -= (uint64_t) mod->module_init_rx; -+ else if (in_init_rw(mod, val)) -+ val -= (uint64_t) mod->module_init_rw; -+ else if (in_core_rx(mod, val)) -+ val -= (uint64_t) mod->module_core_rx; -+ else if (in_core_rw(mod, val)) -+ val -= (uint64_t) mod->module_core_rw; - break; - - case RV_LTV: -@@ -828,15 +858,15 @@ apply_relocate_add (Elf64_Shdr *sechdrs, - * addresses have been selected... - */ - uint64_t gp; -- if (mod->core_size > MAX_LTOFF) -+ if (mod->core_size_rx + mod->core_size_rw > MAX_LTOFF) - /* - * This takes advantage of fact that SHF_ARCH_SMALL gets allocated - * at the end of the module. - */ -- gp = mod->core_size - MAX_LTOFF / 2; -+ gp = mod->core_size_rx + mod->core_size_rw - MAX_LTOFF / 2; - else -- gp = mod->core_size / 2; -- gp = (uint64_t) mod->module_core + ((gp + 7) & -8); -+ gp = (mod->core_size_rx + mod->core_size_rw) / 2; -+ gp = (uint64_t) mod->module_core_rx + ((gp + 7) & -8); - mod->arch.gp = gp; - DEBUGP("%s: placing gp at 0x%lx\n", __func__, gp); - } -diff -urNp linux-3.0.4/arch/ia64/kernel/sys_ia64.c linux-3.0.4/arch/ia64/kernel/sys_ia64.c ---- linux-3.0.4/arch/ia64/kernel/sys_ia64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/sys_ia64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,6 +43,13 @@ arch_get_unmapped_area (struct file *fil - if (REGION_NUMBER(addr) == RGN_HPAGE) - addr = 0; - #endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ addr = mm->free_area_cache; -+ else -+#endif -+ - if (!addr) - addr = mm->free_area_cache; - -@@ -61,14 +68,14 @@ arch_get_unmapped_area (struct file *fil - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr || RGN_MAP_LIMIT - len < REGION_OFFSET(addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -+ if (start_addr != mm->mmap_base) { - /* Start a new search --- just in case we missed some holes. */ -- addr = TASK_UNMAPPED_BASE; -+ addr = mm->mmap_base; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* Remember the address where we stopped this search: */ - mm->free_area_cache = addr + len; - return addr; -diff -urNp linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S ---- linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/kernel/vmlinux.lds.S 2011-08-23 21:47:55.000000000 -0400 -@@ -199,7 +199,7 @@ SECTIONS { - /* Per-cpu data: */ - . = ALIGN(PERCPU_PAGE_SIZE); - PERCPU_VADDR(SMP_CACHE_BYTES, PERCPU_ADDR, :percpu) -- __phys_per_cpu_start = __per_cpu_load; -+ __phys_per_cpu_start = per_cpu_load; - /* - * ensure percpu data fits - * into percpu page size -diff -urNp linux-3.0.4/arch/ia64/mm/fault.c linux-3.0.4/arch/ia64/mm/fault.c ---- linux-3.0.4/arch/ia64/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -73,6 +73,23 @@ mapped_kernel_page_is_present (unsigned - return pte_present(pte); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - void __kprobes - ia64_do_page_fault (unsigned long address, unsigned long isr, struct pt_regs *regs) - { -@@ -146,9 +163,23 @@ ia64_do_page_fault (unsigned long addres - mask = ( (((isr >> IA64_ISR_X_BIT) & 1UL) << VM_EXEC_BIT) - | (((isr >> IA64_ISR_W_BIT) & 1UL) << VM_WRITE_BIT)); - -- if ((vma->vm_flags & mask) != mask) -+ if ((vma->vm_flags & mask) != mask) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(vma->vm_flags & VM_EXEC) && (mask & VM_EXEC)) { -+ if (!(mm->pax_flags & MF_PAX_PAGEEXEC) || address != regs->cr_iip) -+ goto bad_area; -+ -+ up_read(&mm->mmap_sem); -+ pax_report_fault(regs, (void *)regs->cr_iip, (void *)regs->r12); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; - -+ } -+ - /* - * If for any reason at all we couldn't handle the fault, make - * sure we exit gracefully rather than endlessly redo the -diff -urNp linux-3.0.4/arch/ia64/mm/hugetlbpage.c linux-3.0.4/arch/ia64/mm/hugetlbpage.c ---- linux-3.0.4/arch/ia64/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -171,7 +171,7 @@ unsigned long hugetlb_get_unmapped_area( - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (REGION_OFFSET(addr) + len > RGN_MAP_LIMIT) - return -ENOMEM; -- if (!vmm || (addr + len) <= vmm->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = ALIGN(vmm->vm_end, HPAGE_SIZE); - } -diff -urNp linux-3.0.4/arch/ia64/mm/init.c linux-3.0.4/arch/ia64/mm/init.c ---- linux-3.0.4/arch/ia64/mm/init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/ia64/mm/init.c 2011-08-23 21:47:55.000000000 -0400 -@@ -120,6 +120,19 @@ ia64_init_addr_space (void) - vma->vm_start = current->thread.rbs_bot & PAGE_MASK; - vma->vm_end = vma->vm_start + PAGE_SIZE; - vma->vm_flags = VM_DATA_DEFAULT_FLAGS|VM_GROWSUP|VM_ACCOUNT; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (current->mm->pax_flags & MF_PAX_PAGEEXEC) { -+ vma->vm_flags &= ~VM_EXEC; -+ -+#ifdef CONFIG_PAX_MPROTECT -+ if (current->mm->pax_flags & MF_PAX_MPROTECT) -+ vma->vm_flags &= ~VM_MAYEXEC; -+#endif -+ -+ } -+#endif -+ - vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); - down_write(¤t->mm->mmap_sem); - if (insert_vm_struct(current->mm, vma)) { -diff -urNp linux-3.0.4/arch/m32r/lib/usercopy.c linux-3.0.4/arch/m32r/lib/usercopy.c ---- linux-3.0.4/arch/m32r/lib/usercopy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/m32r/lib/usercopy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -14,6 +14,9 @@ - unsigned long - __generic_copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetch(from); - if (access_ok(VERIFY_WRITE, to, n)) - __copy_user(to,from,n); -@@ -23,6 +26,9 @@ __generic_copy_to_user(void __user *to, - unsigned long - __generic_copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - prefetchw(to); - if (access_ok(VERIFY_READ, from, n)) - __copy_user_zeroing(to,from,n); -diff -urNp linux-3.0.4/arch/mips/include/asm/elf.h linux-3.0.4/arch/mips/include/asm/elf.h ---- linux-3.0.4/arch/mips/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -372,13 +372,16 @@ extern const char *__elf_platform; - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) - #endif - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 - struct linux_binprm; - extern int arch_setup_additional_pages(struct linux_binprm *bprm, - int uses_interp); - --struct mm_struct; --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* _ASM_ELF_H */ -diff -urNp linux-3.0.4/arch/mips/include/asm/page.h linux-3.0.4/arch/mips/include/asm/page.h ---- linux-3.0.4/arch/mips/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -93,7 +93,7 @@ extern void copy_user_highpage(struct pa - #ifdef CONFIG_CPU_MIPS32 - typedef struct { unsigned long pte_low, pte_high; } pte_t; - #define pte_val(x) ((x).pte_low | ((unsigned long long)(x).pte_high << 32)) -- #define __pte(x) ({ pte_t __pte = {(x), ((unsigned long long)(x)) >> 32}; __pte; }) -+ #define __pte(x) ({ pte_t __pte = {(x), (x) >> 32}; __pte; }) - #else - typedef struct { unsigned long long pte; } pte_t; - #define pte_val(x) ((x).pte) -diff -urNp linux-3.0.4/arch/mips/include/asm/system.h linux-3.0.4/arch/mips/include/asm/system.h ---- linux-3.0.4/arch/mips/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -230,6 +230,6 @@ extern void per_cpu_trap_init(void); - */ - #define __ARCH_WANT_UNLOCKED_CTXSW - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - #endif /* _ASM_SYSTEM_H */ -diff -urNp linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c ---- linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/binfmt_elfn32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -50,6 +50,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include - #include - #include -diff -urNp linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c ---- linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/binfmt_elfo32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -52,6 +52,13 @@ typedef elf_fpreg_t elf_fpregset_t[ELF_N - #undef ELF_ET_DYN_BASE - #define ELF_ET_DYN_BASE (TASK32_SIZE / 3 * 2) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (TASK_IS_32BIT_ADDR ? 0x00400000UL : 0x00400000UL) -+ -+#define PAX_DELTA_MMAP_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#define PAX_DELTA_STACK_LEN (TASK_IS_32BIT_ADDR ? 27-PAGE_SHIFT : 36-PAGE_SHIFT) -+#endif -+ - #include - - /* -diff -urNp linux-3.0.4/arch/mips/kernel/process.c linux-3.0.4/arch/mips/kernel/process.c ---- linux-3.0.4/arch/mips/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,15 +473,3 @@ unsigned long get_wchan(struct task_stru - out: - return pc; - } -- --/* -- * Don't forget that the stack pointer must be aligned on a 8 bytes -- * boundary for 32-bits ABI and 16 bytes for 64-bits ABI. -- */ --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- -- return sp & ALMASK; --} -diff -urNp linux-3.0.4/arch/mips/mm/fault.c linux-3.0.4/arch/mips/mm/fault.c ---- linux-3.0.4/arch/mips/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -28,6 +28,23 @@ - #include /* For VMALLOC_END */ - #include - -+#ifdef CONFIG_PAX_PAGEEXEC -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * This routine handles page faults. It determines the address, - * and the problem, and then passes it off to one of the appropriate -diff -urNp linux-3.0.4/arch/mips/mm/mmap.c linux-3.0.4/arch/mips/mm/mmap.c ---- linux-3.0.4/arch/mips/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/mips/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,14 +48,18 @@ unsigned long arch_get_unmapped_area(str - do_color_align = 0; - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(current->mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); - else - addr = PAGE_ALIGN(addr); - vmm = find_vma(current->mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vmm || addr + len <= vmm->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vmm, addr, len)) - return addr; - } - addr = current->mm->mmap_base; -@@ -68,7 +72,7 @@ unsigned long arch_get_unmapped_area(str - /* At this point: (!vmm || addr < vmm->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vmm || addr + len <= vmm->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = vmm->vm_end; - if (do_color_align) -@@ -93,30 +97,3 @@ void arch_pick_mmap_layout(struct mm_str - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } -- --static inline unsigned long brk_rnd(void) --{ -- unsigned long rnd = get_random_int(); -- -- rnd = rnd << PAGE_SHIFT; -- /* 8MB for 32bit, 256MB for 64bit */ -- if (TASK_IS_32BIT_ADDR) -- rnd = rnd & 0x7ffffful; -- else -- rnd = rnd & 0xffffffful; -- -- return rnd; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long base = mm->brk; -- unsigned long ret; -- -- ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- -- return ret; --} -diff -urNp linux-3.0.4/arch/parisc/include/asm/elf.h linux-3.0.4/arch/parisc/include/asm/elf.h ---- linux-3.0.4/arch/parisc/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -342,6 +342,13 @@ struct pt_regs; /* forward declaration.. - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE + 0x01000000) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, - but it's not easy, and we've already done it here. */ -diff -urNp linux-3.0.4/arch/parisc/include/asm/pgtable.h linux-3.0.4/arch/parisc/include/asm/pgtable.h ---- linux-3.0.4/arch/parisc/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -210,6 +210,17 @@ struct vm_area_struct; - #define PAGE_EXECREAD __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_EXEC |_PAGE_ACCESSED) - #define PAGE_COPY PAGE_EXECREAD - #define PAGE_RWX __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_EXEC |_PAGE_ACCESSED) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+# define PAGE_SHARED_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_WRITE | _PAGE_ACCESSED) -+# define PAGE_COPY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+# define PAGE_READONLY_NOEXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | _PAGE_READ | _PAGE_ACCESSED) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - #define PAGE_KERNEL __pgprot(_PAGE_KERNEL) - #define PAGE_KERNEL_EXEC __pgprot(_PAGE_KERNEL_EXEC) - #define PAGE_KERNEL_RWX __pgprot(_PAGE_KERNEL_RWX) -diff -urNp linux-3.0.4/arch/parisc/kernel/module.c linux-3.0.4/arch/parisc/kernel/module.c ---- linux-3.0.4/arch/parisc/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -98,16 +98,38 @@ - - /* three functions to determine where in the module core - * or init pieces the location is */ -+static inline int in_init_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rx && -+ loc < (me->module_init_rx + me->init_size_rx)); -+} -+ -+static inline int in_init_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_init_rw && -+ loc < (me->module_init_rw + me->init_size_rw)); -+} -+ - static inline int in_init(struct module *me, void *loc) - { -- return (loc >= me->module_init && -- loc <= (me->module_init + me->init_size)); -+ return in_init_rx(me, loc) || in_init_rw(me, loc); -+} -+ -+static inline int in_core_rx(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rx && -+ loc < (me->module_core_rx + me->core_size_rx)); -+} -+ -+static inline int in_core_rw(struct module *me, void *loc) -+{ -+ return (loc >= me->module_core_rw && -+ loc < (me->module_core_rw + me->core_size_rw)); - } - - static inline int in_core(struct module *me, void *loc) - { -- return (loc >= me->module_core && -- loc <= (me->module_core + me->core_size)); -+ return in_core_rx(me, loc) || in_core_rw(me, loc); - } - - static inline int in_local(struct module *me, void *loc) -@@ -373,13 +395,13 @@ int module_frob_arch_sections(CONST Elf_ - } - - /* align things a bit */ -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.got_offset = me->core_size; -- me->core_size += gots * sizeof(struct got_entry); -- -- me->core_size = ALIGN(me->core_size, 16); -- me->arch.fdesc_offset = me->core_size; -- me->core_size += fdescs * sizeof(Elf_Fdesc); -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += gots * sizeof(struct got_entry); -+ -+ me->core_size_rw = ALIGN(me->core_size_rw, 16); -+ me->arch.fdesc_offset = me->core_size_rw; -+ me->core_size_rw += fdescs * sizeof(Elf_Fdesc); - - me->arch.got_max = gots; - me->arch.fdesc_max = fdescs; -@@ -397,7 +419,7 @@ static Elf64_Word get_got(struct module - - BUG_ON(value == 0); - -- got = me->module_core + me->arch.got_offset; -+ got = me->module_core_rw + me->arch.got_offset; - for (i = 0; got[i].addr; i++) - if (got[i].addr == value) - goto out; -@@ -415,7 +437,7 @@ static Elf64_Word get_got(struct module - #ifdef CONFIG_64BIT - static Elf_Addr get_fdesc(struct module *me, unsigned long value) - { -- Elf_Fdesc *fdesc = me->module_core + me->arch.fdesc_offset; -+ Elf_Fdesc *fdesc = me->module_core_rw + me->arch.fdesc_offset; - - if (!value) { - printk(KERN_ERR "%s: zero OPD requested!\n", me->name); -@@ -433,7 +455,7 @@ static Elf_Addr get_fdesc(struct module - - /* Create new one */ - fdesc->addr = value; -- fdesc->gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ fdesc->gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - return (Elf_Addr)fdesc; - } - #endif /* CONFIG_64BIT */ -@@ -857,7 +879,7 @@ register_unwind_table(struct module *me, - - table = (unsigned char *)sechdrs[me->arch.unwind_section].sh_addr; - end = table + sechdrs[me->arch.unwind_section].sh_size; -- gp = (Elf_Addr)me->module_core + me->arch.got_offset; -+ gp = (Elf_Addr)me->module_core_rw + me->arch.got_offset; - - DEBUGP("register_unwind_table(), sect = %d at 0x%p - 0x%p (gp=0x%lx)\n", - me->arch.unwind_section, table, end, gp); -diff -urNp linux-3.0.4/arch/parisc/kernel/sys_parisc.c linux-3.0.4/arch/parisc/kernel/sys_parisc.c ---- linux-3.0.4/arch/parisc/kernel/sys_parisc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/sys_parisc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,7 +43,7 @@ static unsigned long get_unshared_area(u - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = vma->vm_end; - } -@@ -79,7 +79,7 @@ static unsigned long get_shared_area(str - /* At this point: (!vma || addr < vma->vm_end). */ - if (TASK_SIZE - len < addr) - return -ENOMEM; -- if (!vma || addr + len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - return addr; - addr = DCACHE_ALIGN(vma->vm_end - offset) + offset; - if (addr < vma->vm_end) /* handle wraparound */ -@@ -98,7 +98,7 @@ unsigned long arch_get_unmapped_area(str - if (flags & MAP_FIXED) - return addr; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (filp) { - addr = get_shared_area(filp->f_mapping, addr, len, pgoff); -diff -urNp linux-3.0.4/arch/parisc/kernel/traps.c linux-3.0.4/arch/parisc/kernel/traps.c ---- linux-3.0.4/arch/parisc/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/kernel/traps.c 2011-08-23 21:47:55.000000000 -0400 -@@ -733,9 +733,7 @@ void notrace handle_interruption(int cod - - down_read(¤t->mm->mmap_sem); - vma = find_vma(current->mm,regs->iaoq[0]); -- if (vma && (regs->iaoq[0] >= vma->vm_start) -- && (vma->vm_flags & VM_EXEC)) { -- -+ if (vma && (regs->iaoq[0] >= vma->vm_start)) { - fault_address = regs->iaoq[0]; - fault_space = regs->iasq[0]; - -diff -urNp linux-3.0.4/arch/parisc/mm/fault.c linux-3.0.4/arch/parisc/mm/fault.c ---- linux-3.0.4/arch/parisc/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/parisc/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -15,6 +15,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -52,7 +53,7 @@ DEFINE_PER_CPU(struct exception_data, ex - static unsigned long - parisc_acctyp(unsigned long code, unsigned int inst) - { -- if (code == 6 || code == 16) -+ if (code == 6 || code == 7 || code == 16) - return VM_EXEC; - - switch (inst & 0xf0000000) { -@@ -138,6 +139,116 @@ parisc_acctyp(unsigned long code, unsign - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (instruction_pointer(regs) = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when rt_sigreturn trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: unpatched PLT emulation */ -+ unsigned int bl, depwi; -+ -+ err = get_user(bl, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(depwi, (unsigned int *)(instruction_pointer(regs)+4)); -+ -+ if (err) -+ break; -+ -+ if (bl == 0xEA9F1FDDU && depwi == 0xD6801C1EU) { -+ unsigned int ldw, bv, ldw2, addr = instruction_pointer(regs)-12; -+ -+ err = get_user(ldw, (unsigned int *)addr); -+ err |= get_user(bv, (unsigned int *)(addr+4)); -+ err |= get_user(ldw2, (unsigned int *)(addr+8)); -+ -+ if (err) -+ break; -+ -+ if (ldw == 0x0E801096U && -+ bv == 0xEAC0C000U && -+ ldw2 == 0x0E881095U) -+ { -+ unsigned int resolver, map; -+ -+ err = get_user(resolver, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(map, (unsigned int *)(instruction_pointer(regs)+12)); -+ if (err) -+ break; -+ -+ regs->gr[20] = instruction_pointer(regs)+8; -+ regs->gr[21] = map; -+ regs->gr[22] = resolver; -+ regs->iaoq[0] = resolver | 3UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ return 3; -+ } -+ } -+ } while (0); -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ -+#ifndef CONFIG_PAX_EMUSIGRT -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+#endif -+ -+ do { /* PaX: rt_sigreturn emulation */ -+ unsigned int ldi1, ldi2, bel, nop; -+ -+ err = get_user(ldi1, (unsigned int *)instruction_pointer(regs)); -+ err |= get_user(ldi2, (unsigned int *)(instruction_pointer(regs)+4)); -+ err |= get_user(bel, (unsigned int *)(instruction_pointer(regs)+8)); -+ err |= get_user(nop, (unsigned int *)(instruction_pointer(regs)+12)); -+ -+ if (err) -+ break; -+ -+ if ((ldi1 == 0x34190000U || ldi1 == 0x34190002U) && -+ ldi2 == 0x3414015AU && -+ bel == 0xE4008200U && -+ nop == 0x08000240U) -+ { -+ regs->gr[25] = (ldi1 & 2) >> 1; -+ regs->gr[20] = __NR_rt_sigreturn; -+ regs->gr[31] = regs->iaoq[1] + 16; -+ regs->sr[0] = regs->iasq[1]; -+ regs->iaoq[0] = 0x100UL; -+ regs->iaoq[1] = regs->iaoq[0] + 4; -+ regs->iasq[0] = regs->sr[2]; -+ regs->iasq[1] = regs->sr[2]; -+ return 2; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - int fixup_exception(struct pt_regs *regs) - { - const struct exception_table_entry *fix; -@@ -192,8 +303,33 @@ good_area: - - acc_type = parisc_acctyp(code,regs->iir); - -- if ((vma->vm_flags & acc_type) != acc_type) -+ if ((vma->vm_flags & acc_type) != acc_type) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && (acc_type & VM_EXEC) && -+ (address & ~3UL) == instruction_pointer(regs)) -+ { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 3: -+ return; -+#endif -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ case 2: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)instruction_pointer(regs), (void *)regs->gr[30]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - goto bad_area; -+ } - - /* - * If for any reason at all we couldn't handle the fault, make -diff -urNp linux-3.0.4/arch/powerpc/include/asm/elf.h linux-3.0.4/arch/powerpc/include/asm/elf.h ---- linux-3.0.4/arch/powerpc/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -178,8 +178,19 @@ typedef elf_fpreg_t elf_vsrreghalf_t32[E - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --extern unsigned long randomize_et_dyn(unsigned long base); --#define ELF_ET_DYN_BASE (randomize_et_dyn(0x20000000)) -+#define ELF_ET_DYN_BASE (0x20000000) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (0x10000000UL) -+ -+#ifdef __powerpc64__ -+#define PAX_DELTA_MMAP_LEN (is_32bit_task() ? 16 : 28) -+#define PAX_DELTA_STACK_LEN (is_32bit_task() ? 16 : 28) -+#else -+#define PAX_DELTA_MMAP_LEN 15 -+#define PAX_DELTA_STACK_LEN 15 -+#endif -+#endif - - /* - * Our registers are always unsigned longs, whether we're a 32 bit -@@ -274,9 +285,6 @@ extern int arch_setup_additional_pages(s - (0x7ff >> (PAGE_SHIFT - 12)) : \ - (0x3ffff >> (PAGE_SHIFT - 12))) - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* __KERNEL__ */ - - /* -diff -urNp linux-3.0.4/arch/powerpc/include/asm/kmap_types.h linux-3.0.4/arch/powerpc/include/asm/kmap_types.h ---- linux-3.0.4/arch/powerpc/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -27,6 +27,7 @@ enum km_type { - KM_PPC_SYNC_PAGE, - KM_PPC_SYNC_ICACHE, - KM_KDB, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/powerpc/include/asm/mman.h linux-3.0.4/arch/powerpc/include/asm/mman.h ---- linux-3.0.4/arch/powerpc/include/asm/mman.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/mman.h 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,7 @@ static inline unsigned long arch_calc_vm - } - #define arch_calc_vm_prot_bits(prot) arch_calc_vm_prot_bits(prot) - --static inline pgprot_t arch_vm_get_page_prot(unsigned long vm_flags) -+static inline pgprot_t arch_vm_get_page_prot(vm_flags_t vm_flags) - { - return (vm_flags & VM_SAO) ? __pgprot(_PAGE_SAO) : __pgprot(0); - } -diff -urNp linux-3.0.4/arch/powerpc/include/asm/page_64.h linux-3.0.4/arch/powerpc/include/asm/page_64.h ---- linux-3.0.4/arch/powerpc/include/asm/page_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/page_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -155,15 +155,18 @@ do { \ - * stack by default, so in the absence of a PT_GNU_STACK program header - * we turn execute permission off. - */ --#define VM_STACK_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_STACK_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_STACK_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - -+#ifndef CONFIG_PAX_PAGEEXEC - #define VM_STACK_DEFAULT_FLAGS \ - (is_32bit_task() ? \ - VM_STACK_DEFAULT_FLAGS32 : VM_STACK_DEFAULT_FLAGS64) -+#endif - - #include - -diff -urNp linux-3.0.4/arch/powerpc/include/asm/page.h linux-3.0.4/arch/powerpc/include/asm/page.h ---- linux-3.0.4/arch/powerpc/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -129,8 +129,9 @@ extern phys_addr_t kernstart_addr; - * and needs to be executable. This means the whole heap ends - * up being executable. - */ --#define VM_DATA_DEFAULT_FLAGS32 (VM_READ | VM_WRITE | VM_EXEC | \ -- VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -+#define VM_DATA_DEFAULT_FLAGS32 \ -+ (((current->personality & READ_IMPLIES_EXEC) ? VM_EXEC : 0) | \ -+ VM_READ | VM_WRITE | VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) - - #define VM_DATA_DEFAULT_FLAGS64 (VM_READ | VM_WRITE | \ - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC) -@@ -158,6 +159,9 @@ extern phys_addr_t kernstart_addr; - #define is_kernel_addr(x) ((x) >= PAGE_OFFSET) - #endif - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - #undef STRICT_MM_TYPECHECKS -diff -urNp linux-3.0.4/arch/powerpc/include/asm/pgtable.h linux-3.0.4/arch/powerpc/include/asm/pgtable.h ---- linux-3.0.4/arch/powerpc/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -2,6 +2,7 @@ - #define _ASM_POWERPC_PGTABLE_H - #ifdef __KERNEL__ - -+#include - #ifndef __ASSEMBLY__ - #include /* For TASK_SIZE */ - #include -diff -urNp linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h ---- linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/pte-hash32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -21,6 +21,7 @@ - #define _PAGE_FILE 0x004 /* when !present: nonlinear file mapping */ - #define _PAGE_USER 0x004 /* usermode access allowed */ - #define _PAGE_GUARDED 0x008 /* G: prohibit speculative access */ -+#define _PAGE_EXEC _PAGE_GUARDED - #define _PAGE_COHERENT 0x010 /* M: enforce memory coherence (SMP systems) */ - #define _PAGE_NO_CACHE 0x020 /* I: cache inhibit */ - #define _PAGE_WRITETHRU 0x040 /* W: cache write-through */ -diff -urNp linux-3.0.4/arch/powerpc/include/asm/reg.h linux-3.0.4/arch/powerpc/include/asm/reg.h ---- linux-3.0.4/arch/powerpc/include/asm/reg.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/reg.h 2011-08-23 21:47:55.000000000 -0400 -@@ -209,6 +209,7 @@ - #define SPRN_DBCR 0x136 /* e300 Data Breakpoint Control Reg */ - #define SPRN_DSISR 0x012 /* Data Storage Interrupt Status Register */ - #define DSISR_NOHPTE 0x40000000 /* no translation found */ -+#define DSISR_GUARDED 0x10000000 /* fetch from guarded storage */ - #define DSISR_PROTFAULT 0x08000000 /* protection fault */ - #define DSISR_ISSTORE 0x02000000 /* access was a store */ - #define DSISR_DABRMATCH 0x00400000 /* hit data breakpoint */ -diff -urNp linux-3.0.4/arch/powerpc/include/asm/system.h linux-3.0.4/arch/powerpc/include/asm/system.h ---- linux-3.0.4/arch/powerpc/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -531,7 +531,7 @@ __cmpxchg_local(volatile void *ptr, unsi - #define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n)) - #endif - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - /* Used in very early kernel initialization. */ - extern unsigned long reloc_offset(void); -diff -urNp linux-3.0.4/arch/powerpc/include/asm/uaccess.h linux-3.0.4/arch/powerpc/include/asm/uaccess.h ---- linux-3.0.4/arch/powerpc/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -13,6 +13,8 @@ - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with -@@ -327,52 +329,6 @@ do { \ - extern unsigned long __copy_tofrom_user(void __user *to, - const void __user *from, unsigned long size); - --#ifndef __powerpc64__ -- --static inline unsigned long copy_from_user(void *to, -- const void __user *from, unsigned long n) --{ -- unsigned long over; -- -- if (access_ok(VERIFY_READ, from, n)) -- return __copy_tofrom_user((__force void __user *)to, from, n); -- if ((unsigned long)from < TASK_SIZE) { -- over = (unsigned long)from + n - TASK_SIZE; -- return __copy_tofrom_user((__force void __user *)to, from, -- n - over) + over; -- } -- return n; --} -- --static inline unsigned long copy_to_user(void __user *to, -- const void *from, unsigned long n) --{ -- unsigned long over; -- -- if (access_ok(VERIFY_WRITE, to, n)) -- return __copy_tofrom_user(to, (__force void __user *)from, n); -- if ((unsigned long)to < TASK_SIZE) { -- over = (unsigned long)to + n - TASK_SIZE; -- return __copy_tofrom_user(to, (__force void __user *)from, -- n - over) + over; -- } -- return n; --} -- --#else /* __powerpc64__ */ -- --#define __copy_in_user(to, from, size) \ -- __copy_tofrom_user((to), (from), (size)) -- --extern unsigned long copy_from_user(void *to, const void __user *from, -- unsigned long n); --extern unsigned long copy_to_user(void __user *to, const void *from, -- unsigned long n); --extern unsigned long copy_in_user(void __user *to, const void __user *from, -- unsigned long n); -- --#endif /* __powerpc64__ */ -- - static inline unsigned long __copy_from_user_inatomic(void *to, - const void __user *from, unsigned long n) - { -@@ -396,6 +352,10 @@ static inline unsigned long __copy_from_ - if (ret == 0) - return 0; - } -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ - return __copy_tofrom_user((__force void __user *)to, from, n); - } - -@@ -422,6 +382,10 @@ static inline unsigned long __copy_to_us - if (ret == 0) - return 0; - } -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ - return __copy_tofrom_user(to, (__force const void __user *)from, n); - } - -@@ -439,6 +403,92 @@ static inline unsigned long __copy_to_us - return __copy_to_user_inatomic(to, from, size); - } - -+#ifndef __powerpc64__ -+ -+static inline unsigned long __must_check copy_from_user(void *to, -+ const void __user *from, unsigned long n) -+{ -+ unsigned long over; -+ -+ if ((long)n < 0) -+ return n; -+ -+ if (access_ok(VERIFY_READ, from, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ return __copy_tofrom_user((__force void __user *)to, from, n); -+ } -+ if ((unsigned long)from < TASK_SIZE) { -+ over = (unsigned long)from + n - TASK_SIZE; -+ if (!__builtin_constant_p(n - over)) -+ check_object_size(to, n - over, false); -+ return __copy_tofrom_user((__force void __user *)to, from, -+ n - over) + over; -+ } -+ return n; -+} -+ -+static inline unsigned long __must_check copy_to_user(void __user *to, -+ const void *from, unsigned long n) -+{ -+ unsigned long over; -+ -+ if ((long)n < 0) -+ return n; -+ -+ if (access_ok(VERIFY_WRITE, to, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ return __copy_tofrom_user(to, (__force void __user *)from, n); -+ } -+ if ((unsigned long)to < TASK_SIZE) { -+ over = (unsigned long)to + n - TASK_SIZE; -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n - over, true); -+ return __copy_tofrom_user(to, (__force void __user *)from, -+ n - over) + over; -+ } -+ return n; -+} -+ -+#else /* __powerpc64__ */ -+ -+#define __copy_in_user(to, from, size) \ -+ __copy_tofrom_user((to), (from), (size)) -+ -+static inline unsigned long __must_check copy_from_user(void *to, const void __user *from, unsigned long n) -+{ -+ if ((long)n < 0 || n > INT_MAX) -+ return n; -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ -+ if (likely(access_ok(VERIFY_READ, from, n))) -+ n = __copy_from_user(to, from, n); -+ else -+ memset(to, 0, n); -+ return n; -+} -+ -+static inline unsigned long __must_check copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ if ((long)n < 0 || n > INT_MAX) -+ return n; -+ -+ if (likely(access_ok(VERIFY_WRITE, to, n))) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ n = __copy_to_user(to, from, n); -+ } -+ return n; -+} -+ -+extern unsigned long copy_in_user(void __user *to, const void __user *from, -+ unsigned long n); -+ -+#endif /* __powerpc64__ */ -+ - extern unsigned long __clear_user(void __user *addr, unsigned long size); - - static inline unsigned long clear_user(void __user *addr, unsigned long size) -diff -urNp linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S ---- linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/exceptions-64e.S 2011-08-23 21:47:55.000000000 -0400 -@@ -567,6 +567,7 @@ storage_fault_common: - std r14,_DAR(r1) - std r15,_DSISR(r1) - addi r3,r1,STACK_FRAME_OVERHEAD -+ bl .save_nvgprs - mr r4,r14 - mr r5,r15 - ld r14,PACA_EXGEN+EX_R14(r13) -@@ -576,8 +577,7 @@ storage_fault_common: - cmpdi r3,0 - bne- 1f - b .ret_from_except_lite --1: bl .save_nvgprs -- mr r5,r3 -+1: mr r5,r3 - addi r3,r1,STACK_FRAME_OVERHEAD - ld r4,_DAR(r1) - bl .bad_page_fault -diff -urNp linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S ---- linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/exceptions-64s.S 2011-08-23 21:47:55.000000000 -0400 -@@ -956,10 +956,10 @@ handle_page_fault: - 11: ld r4,_DAR(r1) - ld r5,_DSISR(r1) - addi r3,r1,STACK_FRAME_OVERHEAD -+ bl .save_nvgprs - bl .do_page_fault - cmpdi r3,0 - beq+ 13f -- bl .save_nvgprs - mr r5,r3 - addi r3,r1,STACK_FRAME_OVERHEAD - lwz r4,_DAR(r1) -diff -urNp linux-3.0.4/arch/powerpc/kernel/module_32.c linux-3.0.4/arch/powerpc/kernel/module_32.c ---- linux-3.0.4/arch/powerpc/kernel/module_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/module_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -162,7 +162,7 @@ int module_frob_arch_sections(Elf32_Ehdr - me->arch.core_plt_section = i; - } - if (!me->arch.core_plt_section || !me->arch.init_plt_section) { -- printk("Module doesn't contain .plt or .init.plt sections.\n"); -+ printk("Module %s doesn't contain .plt or .init.plt sections.\n", me->name); - return -ENOEXEC; - } - -@@ -203,11 +203,16 @@ static uint32_t do_plt_call(void *locati - - DEBUGP("Doing plt for call to 0x%x at 0x%x\n", val, (unsigned int)location); - /* Init, or core PLT? */ -- if (location >= mod->module_core -- && location < mod->module_core + mod->core_size) -+ if ((location >= mod->module_core_rx && location < mod->module_core_rx + mod->core_size_rx) || -+ (location >= mod->module_core_rw && location < mod->module_core_rw + mod->core_size_rw)) - entry = (void *)sechdrs[mod->arch.core_plt_section].sh_addr; -- else -+ else if ((location >= mod->module_init_rx && location < mod->module_init_rx + mod->init_size_rx) || -+ (location >= mod->module_init_rw && location < mod->module_init_rw + mod->init_size_rw)) - entry = (void *)sechdrs[mod->arch.init_plt_section].sh_addr; -+ else { -+ printk(KERN_ERR "%s: invalid R_PPC_REL24 entry found\n", mod->name); -+ return ~0UL; -+ } - - /* Find this entry, or if that fails, the next avail. entry */ - while (entry->jump[0]) { -diff -urNp linux-3.0.4/arch/powerpc/kernel/module.c linux-3.0.4/arch/powerpc/kernel/module.c ---- linux-3.0.4/arch/powerpc/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -31,11 +31,24 @@ - - LIST_HEAD(module_bug_list); - -+#ifdef CONFIG_PAX_KERNEXEC - void *module_alloc(unsigned long size) - { - if (size == 0) - return NULL; - -+ return vmalloc(size); -+} -+ -+void *module_alloc_exec(unsigned long size) -+#else -+void *module_alloc(unsigned long size) -+#endif -+ -+{ -+ if (size == 0) -+ return NULL; -+ - return vmalloc_exec(size); - } - -@@ -45,6 +58,13 @@ void module_free(struct module *mod, voi - vfree(module_region); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+#endif -+ - static const Elf_Shdr *find_section(const Elf_Ehdr *hdr, - const Elf_Shdr *sechdrs, - const char *name) -diff -urNp linux-3.0.4/arch/powerpc/kernel/process.c linux-3.0.4/arch/powerpc/kernel/process.c ---- linux-3.0.4/arch/powerpc/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/process.c 2011-08-23 21:48:14.000000000 -0400 -@@ -676,8 +676,8 @@ void show_regs(struct pt_regs * regs) - * Lookup NIP late so we have the best change of getting the - * above info out without failing - */ -- printk("NIP ["REG"] %pS\n", regs->nip, (void *)regs->nip); -- printk("LR ["REG"] %pS\n", regs->link, (void *)regs->link); -+ printk("NIP ["REG"] %pA\n", regs->nip, (void *)regs->nip); -+ printk("LR ["REG"] %pA\n", regs->link, (void *)regs->link); - #endif - show_stack(current, (unsigned long *) regs->gpr[1]); - if (!user_mode(regs)) -@@ -1183,10 +1183,10 @@ void show_stack(struct task_struct *tsk, - newsp = stack[0]; - ip = stack[STACK_FRAME_LR_SAVE]; - if (!firstframe || ip != lr) { -- printk("["REG"] ["REG"] %pS", sp, ip, (void *)ip); -+ printk("["REG"] ["REG"] %pA", sp, ip, (void *)ip); - #ifdef CONFIG_FUNCTION_GRAPH_TRACER - if ((ip == rth || ip == mrth) && curr_frame >= 0) { -- printk(" (%pS)", -+ printk(" (%pA)", - (void *)current->ret_stack[curr_frame].ret); - curr_frame--; - } -@@ -1206,7 +1206,7 @@ void show_stack(struct task_struct *tsk, - struct pt_regs *regs = (struct pt_regs *) - (sp + STACK_FRAME_OVERHEAD); - lr = regs->link; -- printk("--- Exception: %lx at %pS\n LR = %pS\n", -+ printk("--- Exception: %lx at %pA\n LR = %pA\n", - regs->trap, (void *)regs->nip, (void *)lr); - firstframe = 1; - } -@@ -1281,58 +1281,3 @@ void thread_info_cache_init(void) - } - - #endif /* THREAD_SHIFT < PAGE_SHIFT */ -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- return sp & ~0xf; --} -- --static inline unsigned long brk_rnd(void) --{ -- unsigned long rnd = 0; -- -- /* 8MB for 32bit, 1GB for 64bit */ -- if (is_32bit_task()) -- rnd = (long)(get_random_int() % (1<<(23-PAGE_SHIFT))); -- else -- rnd = (long)(get_random_int() % (1<<(30-PAGE_SHIFT))); -- -- return rnd << PAGE_SHIFT; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long base = mm->brk; -- unsigned long ret; -- --#ifdef CONFIG_PPC_STD_MMU_64 -- /* -- * If we are using 1TB segments and we are allowed to randomise -- * the heap, we can put it above 1TB so it is backed by a 1TB -- * segment. Otherwise the heap will be in the bottom 1TB -- * which always uses 256MB segments and this may result in a -- * performance penalty. -- */ -- if (!is_32bit_task() && (mmu_highuser_ssize == MMU_SEGSIZE_1T)) -- base = max_t(unsigned long, mm->brk, 1UL << SID_SHIFT_1T); --#endif -- -- ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- -- return ret; --} -- --unsigned long randomize_et_dyn(unsigned long base) --{ -- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (ret < base) -- return base; -- -- return ret; --} -diff -urNp linux-3.0.4/arch/powerpc/kernel/signal_32.c linux-3.0.4/arch/powerpc/kernel/signal_32.c ---- linux-3.0.4/arch/powerpc/kernel/signal_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/signal_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -859,7 +859,7 @@ int handle_rt_signal32(unsigned long sig - /* Save user registers on the stack */ - frame = &rt_sf->uc.uc_mcontext; - addr = frame; -- if (vdso32_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso32_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - if (save_user_regs(regs, frame, 0, 1)) - goto badframe; - regs->link = current->mm->context.vdso_base + vdso32_rt_sigtramp; -diff -urNp linux-3.0.4/arch/powerpc/kernel/signal_64.c linux-3.0.4/arch/powerpc/kernel/signal_64.c ---- linux-3.0.4/arch/powerpc/kernel/signal_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/signal_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -430,7 +430,7 @@ int handle_rt_signal64(int signr, struct - current->thread.fpscr.val = 0; - - /* Set up to return from userspace. */ -- if (vdso64_rt_sigtramp && current->mm->context.vdso_base) { -+ if (vdso64_rt_sigtramp && current->mm->context.vdso_base != ~0UL) { - regs->link = current->mm->context.vdso_base + vdso64_rt_sigtramp; - } else { - err |= setup_trampoline(__NR_rt_sigreturn, &frame->tramp[0]); -diff -urNp linux-3.0.4/arch/powerpc/kernel/traps.c linux-3.0.4/arch/powerpc/kernel/traps.c ---- linux-3.0.4/arch/powerpc/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/traps.c 2011-08-23 21:48:14.000000000 -0400 -@@ -98,6 +98,8 @@ static void pmac_backlight_unblank(void) - static inline void pmac_backlight_unblank(void) { } - #endif - -+extern void gr_handle_kernel_exploit(void); -+ - int die(const char *str, struct pt_regs *regs, long err) - { - static struct { -@@ -171,6 +173,8 @@ int die(const char *str, struct pt_regs - if (panic_on_oops) - panic("Fatal exception"); - -+ gr_handle_kernel_exploit(); -+ - oops_exit(); - do_exit(err); - -diff -urNp linux-3.0.4/arch/powerpc/kernel/vdso.c linux-3.0.4/arch/powerpc/kernel/vdso.c ---- linux-3.0.4/arch/powerpc/kernel/vdso.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/kernel/vdso.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,6 +36,7 @@ - #include - #include - #include -+#include - - #include "setup.h" - -@@ -220,7 +221,7 @@ int arch_setup_additional_pages(struct l - vdso_base = VDSO32_MBASE; - #endif - -- current->mm->context.vdso_base = 0; -+ current->mm->context.vdso_base = ~0UL; - - /* vDSO has a problem and was disabled, just don't "enable" it for the - * process -@@ -240,7 +241,7 @@ int arch_setup_additional_pages(struct l - vdso_base = get_unmapped_area(NULL, vdso_base, - (vdso_pages << PAGE_SHIFT) + - ((VDSO_ALIGNMENT - 1) & PAGE_MASK), -- 0, 0); -+ 0, MAP_PRIVATE | MAP_EXECUTABLE); - if (IS_ERR_VALUE(vdso_base)) { - rc = vdso_base; - goto fail_mmapsem; -diff -urNp linux-3.0.4/arch/powerpc/lib/usercopy_64.c linux-3.0.4/arch/powerpc/lib/usercopy_64.c ---- linux-3.0.4/arch/powerpc/lib/usercopy_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/lib/usercopy_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -9,22 +9,6 @@ - #include - #include - --unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) --{ -- if (likely(access_ok(VERIFY_READ, from, n))) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; --} -- --unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) --{ -- if (likely(access_ok(VERIFY_WRITE, to, n))) -- n = __copy_to_user(to, from, n); -- return n; --} -- - unsigned long copy_in_user(void __user *to, const void __user *from, - unsigned long n) - { -@@ -35,7 +19,5 @@ unsigned long copy_in_user(void __user * - return n; - } - --EXPORT_SYMBOL(copy_from_user); --EXPORT_SYMBOL(copy_to_user); - EXPORT_SYMBOL(copy_in_user); - -diff -urNp linux-3.0.4/arch/powerpc/mm/fault.c linux-3.0.4/arch/powerpc/mm/fault.c ---- linux-3.0.4/arch/powerpc/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/fault.c 2011-08-23 21:47:55.000000000 -0400 -@@ -32,6 +32,10 @@ - #include - #include - #include -+#include -+#include -+#include -+#include - - #include - #include -@@ -43,6 +47,7 @@ - #include - #include - #include -+#include - - #ifdef CONFIG_KPROBES - static inline int notify_page_fault(struct pt_regs *regs) -@@ -66,6 +71,33 @@ static inline int notify_page_fault(stru - } - #endif - -+#ifdef CONFIG_PAX_PAGEEXEC -+/* -+ * PaX: decide what to do with offenders (regs->nip = fault address) -+ * -+ * returns 1 when task should be killed -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 5; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int __user *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - /* - * Check whether the instruction at regs->nip is a store using - * an update addressing form which will update r1. -@@ -136,7 +168,7 @@ int __kprobes do_page_fault(struct pt_re - * indicate errors in DSISR but can validly be set in SRR1. - */ - if (trap == 0x400) -- error_code &= 0x48200000; -+ error_code &= 0x58200000; - else - is_write = error_code & DSISR_ISSTORE; - #else -@@ -259,7 +291,7 @@ good_area: - * "undefined". Of those that can be set, this is the only - * one which seems bad. - */ -- if (error_code & 0x10000000) -+ if (error_code & DSISR_GUARDED) - /* Guarded storage error. */ - goto bad_area; - #endif /* CONFIG_8xx */ -@@ -274,7 +306,7 @@ good_area: - * processors use the same I/D cache coherency mechanism - * as embedded. - */ -- if (error_code & DSISR_PROTFAULT) -+ if (error_code & (DSISR_PROTFAULT | DSISR_GUARDED)) - goto bad_area; - #endif /* CONFIG_PPC_STD_MMU */ - -@@ -343,6 +375,23 @@ bad_area: - bad_area_nosemaphore: - /* User mode accesses cause a SIGSEGV */ - if (user_mode(regs)) { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (mm->pax_flags & MF_PAX_PAGEEXEC) { -+#ifdef CONFIG_PPC_STD_MMU -+ if (is_exec && (error_code & (DSISR_PROTFAULT | DSISR_GUARDED))) { -+#else -+ if (is_exec && regs->nip == address) { -+#endif -+ switch (pax_handle_fetch_fault(regs)) { -+ } -+ -+ pax_report_fault(regs, (void *)regs->nip, (void *)regs->gpr[PT_R1]); -+ do_group_exit(SIGKILL); -+ } -+ } -+#endif -+ - _exception(SIGSEGV, regs, code, address); - return 0; - } -diff -urNp linux-3.0.4/arch/powerpc/mm/mmap_64.c linux-3.0.4/arch/powerpc/mm/mmap_64.c ---- linux-3.0.4/arch/powerpc/mm/mmap_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/mmap_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -99,10 +99,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-3.0.4/arch/powerpc/mm/slice.c linux-3.0.4/arch/powerpc/mm/slice.c ---- linux-3.0.4/arch/powerpc/mm/slice.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/powerpc/mm/slice.c 2011-08-23 21:47:55.000000000 -0400 -@@ -98,7 +98,7 @@ static int slice_area_is_free(struct mm_ - if ((mm->task_size - len) < addr) - return 0; - vma = find_vma(mm, addr); -- return (!vma || (addr + len) <= vma->vm_start); -+ return check_heap_stack_gap(vma, addr, len); - } - - static int slice_low_has_vma(struct mm_struct *mm, unsigned long slice) -@@ -256,7 +256,7 @@ full_search: - addr = _ALIGN_UP(addr + 1, 1ul << SLICE_HIGH_SHIFT); - continue; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -@@ -313,10 +313,14 @@ static unsigned long slice_find_area_top - } - } - -- addr = mm->mmap_base; -- while (addr > len) { -+ if (mm->mmap_base < len) -+ addr = -ENOMEM; -+ else -+ addr = mm->mmap_base - len; -+ -+ while (!IS_ERR_VALUE(addr)) { - /* Go down by chunk size */ -- addr = _ALIGN_DOWN(addr - len, 1ul << pshift); -+ addr = _ALIGN_DOWN(addr, 1ul << pshift); - - /* Check for hit with different page size */ - mask = slice_range_to_mask(addr, len); -@@ -336,7 +340,7 @@ static unsigned long slice_find_area_top - * return with success: - */ - vma = find_vma(mm, addr); -- if (!vma || (addr + len) <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* remember the address as a hint for next time */ - if (use_cache) - mm->free_area_cache = addr; -@@ -348,7 +352,7 @@ static unsigned long slice_find_area_top - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start; -+ addr = skip_heap_stack_gap(vma, len); - } - - /* -@@ -426,6 +430,11 @@ unsigned long slice_get_unmapped_area(un - if (fixed && addr > (mm->task_size - len)) - return -EINVAL; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!fixed && (mm->pax_flags & MF_PAX_RANDMMAP)) -+ addr = 0; -+#endif -+ - /* If hint, make sure it matches our alignment restrictions */ - if (!fixed && addr) { - addr = _ALIGN_UP(addr, 1ul << pshift); -diff -urNp linux-3.0.4/arch/s390/include/asm/elf.h linux-3.0.4/arch/s390/include/asm/elf.h ---- linux-3.0.4/arch/s390/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -162,8 +162,14 @@ extern unsigned int vdso_enabled; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - --extern unsigned long randomize_et_dyn(unsigned long base); --#define ELF_ET_DYN_BASE (randomize_et_dyn(STACK_TOP / 3 * 2)) -+#define ELF_ET_DYN_BASE (STACK_TOP / 3 * 2) -+ -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_31BIT) ? 0x10000UL : 0x80000000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26 ) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_31BIT) ? 15 : 26 ) -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. */ -@@ -210,7 +216,4 @@ struct linux_binprm; - #define ARCH_HAS_SETUP_ADDITIONAL_PAGES 1 - int arch_setup_additional_pages(struct linux_binprm *, int); - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif -diff -urNp linux-3.0.4/arch/s390/include/asm/system.h linux-3.0.4/arch/s390/include/asm/system.h ---- linux-3.0.4/arch/s390/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -255,7 +255,7 @@ extern void (*_machine_restart)(char *co - extern void (*_machine_halt)(void); - extern void (*_machine_power_off)(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - - static inline int tprot(unsigned long addr) - { -diff -urNp linux-3.0.4/arch/s390/include/asm/uaccess.h linux-3.0.4/arch/s390/include/asm/uaccess.h ---- linux-3.0.4/arch/s390/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -235,6 +235,10 @@ static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (access_ok(VERIFY_WRITE, to, n)) - n = __copy_to_user(to, from, n); - return n; -@@ -260,6 +264,9 @@ copy_to_user(void __user *to, const void - static inline unsigned long __must_check - __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n) && (n <= 256)) - return uaccess.copy_from_user_small(n, from, to); - else -@@ -294,6 +301,10 @@ copy_from_user(void *to, const void __us - unsigned int sz = __compiletime_object_size(to); - - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (unlikely(sz != -1 && sz < n)) { - copy_from_user_overflow(); - return n; -diff -urNp linux-3.0.4/arch/s390/kernel/module.c linux-3.0.4/arch/s390/kernel/module.c ---- linux-3.0.4/arch/s390/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -168,11 +168,11 @@ module_frob_arch_sections(Elf_Ehdr *hdr, - - /* Increase core size by size of got & plt and set start - offsets for got and plt. */ -- me->core_size = ALIGN(me->core_size, 4); -- me->arch.got_offset = me->core_size; -- me->core_size += me->arch.got_size; -- me->arch.plt_offset = me->core_size; -- me->core_size += me->arch.plt_size; -+ me->core_size_rw = ALIGN(me->core_size_rw, 4); -+ me->arch.got_offset = me->core_size_rw; -+ me->core_size_rw += me->arch.got_size; -+ me->arch.plt_offset = me->core_size_rx; -+ me->core_size_rx += me->arch.plt_size; - return 0; - } - -@@ -258,7 +258,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - if (info->got_initialized == 0) { - Elf_Addr *gotent; - -- gotent = me->module_core + me->arch.got_offset + -+ gotent = me->module_core_rw + me->arch.got_offset + - info->got_offset; - *gotent = val; - info->got_initialized = 1; -@@ -282,7 +282,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - else if (r_type == R_390_GOTENT || - r_type == R_390_GOTPLTENT) - *(unsigned int *) loc = -- (val + (Elf_Addr) me->module_core - loc) >> 1; -+ (val + (Elf_Addr) me->module_core_rw - loc) >> 1; - else if (r_type == R_390_GOT64 || - r_type == R_390_GOTPLT64) - *(unsigned long *) loc = val; -@@ -296,7 +296,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_PLTOFF64: /* 16 bit offset from GOT to PLT. */ - if (info->plt_initialized == 0) { - unsigned int *ip; -- ip = me->module_core + me->arch.plt_offset + -+ ip = me->module_core_rx + me->arch.plt_offset + - info->plt_offset; - #ifndef CONFIG_64BIT - ip[0] = 0x0d105810; /* basr 1,0; l 1,6(1); br 1 */ -@@ -321,7 +321,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - val - loc + 0xffffUL < 0x1ffffeUL) || - (r_type == R_390_PLT32DBL && - val - loc + 0xffffffffULL < 0x1fffffffeULL))) -- val = (Elf_Addr) me->module_core + -+ val = (Elf_Addr) me->module_core_rx + - me->arch.plt_offset + - info->plt_offset; - val += rela->r_addend - loc; -@@ -343,7 +343,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - case R_390_GOTOFF32: /* 32 bit offset to GOT. */ - case R_390_GOTOFF64: /* 64 bit offset to GOT. */ - val = val + rela->r_addend - -- ((Elf_Addr) me->module_core + me->arch.got_offset); -+ ((Elf_Addr) me->module_core_rw + me->arch.got_offset); - if (r_type == R_390_GOTOFF16) - *(unsigned short *) loc = val; - else if (r_type == R_390_GOTOFF32) -@@ -353,7 +353,7 @@ apply_rela(Elf_Rela *rela, Elf_Addr base - break; - case R_390_GOTPC: /* 32 bit PC relative offset to GOT. */ - case R_390_GOTPCDBL: /* 32 bit PC rel. off. to GOT shifted by 1. */ -- val = (Elf_Addr) me->module_core + me->arch.got_offset + -+ val = (Elf_Addr) me->module_core_rw + me->arch.got_offset + - rela->r_addend - loc; - if (r_type == R_390_GOTPC) - *(unsigned int *) loc = val; -diff -urNp linux-3.0.4/arch/s390/kernel/process.c linux-3.0.4/arch/s390/kernel/process.c ---- linux-3.0.4/arch/s390/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -319,39 +319,3 @@ unsigned long get_wchan(struct task_stru - } - return 0; - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() & ~PAGE_MASK; -- return sp & ~0xf; --} -- --static inline unsigned long brk_rnd(void) --{ -- /* 8MB for 32bit, 1GB for 64bit */ -- if (is_32bit_task()) -- return (get_random_int() & 0x7ffUL) << PAGE_SHIFT; -- else -- return (get_random_int() & 0x3ffffUL) << PAGE_SHIFT; --} -- --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd()); -- -- if (ret < mm->brk) -- return mm->brk; -- return ret; --} -- --unsigned long randomize_et_dyn(unsigned long base) --{ -- unsigned long ret = PAGE_ALIGN(base + brk_rnd()); -- -- if (!(current->flags & PF_RANDOMIZE)) -- return base; -- if (ret < base) -- return base; -- return ret; --} -diff -urNp linux-3.0.4/arch/s390/kernel/setup.c linux-3.0.4/arch/s390/kernel/setup.c ---- linux-3.0.4/arch/s390/kernel/setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/kernel/setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -271,7 +271,7 @@ static int __init early_parse_mem(char * - } - early_param("mem", early_parse_mem); - --unsigned int user_mode = HOME_SPACE_MODE; -+unsigned int user_mode = SECONDARY_SPACE_MODE; - EXPORT_SYMBOL_GPL(user_mode); - - static int set_amode_and_uaccess(unsigned long user_amode, -diff -urNp linux-3.0.4/arch/s390/mm/mmap.c linux-3.0.4/arch/s390/mm/mmap.c ---- linux-3.0.4/arch/s390/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/s390/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -91,10 +91,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -@@ -166,10 +178,22 @@ void arch_pick_mmap_layout(struct mm_str - */ - if (mmap_is_legacy()) { - mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = s390_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { - mm->mmap_base = mmap_base(); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = s390_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-3.0.4/arch/score/include/asm/system.h linux-3.0.4/arch/score/include/asm/system.h ---- linux-3.0.4/arch/score/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/score/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ do { \ - #define finish_arch_switch(prev) do {} while (0) - - typedef void (*vi_handler_t)(void); --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) (x) - - #define mb() barrier() - #define rmb() barrier() -diff -urNp linux-3.0.4/arch/score/kernel/process.c linux-3.0.4/arch/score/kernel/process.c ---- linux-3.0.4/arch/score/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/score/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -161,8 +161,3 @@ unsigned long get_wchan(struct task_stru - - return task_pt_regs(task)->cp0_epc; - } -- --unsigned long arch_align_stack(unsigned long sp) --{ -- return sp; --} -diff -urNp linux-3.0.4/arch/sh/mm/mmap.c linux-3.0.4/arch/sh/mm/mmap.c ---- linux-3.0.4/arch/sh/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sh/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -74,8 +74,7 @@ unsigned long arch_get_unmapped_area(str - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -106,7 +105,7 @@ full_search: - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -157,8 +156,7 @@ arch_get_unmapped_area_topdown(struct fi - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (TASK_SIZE - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -179,7 +177,7 @@ arch_get_unmapped_area_topdown(struct fi - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -188,18 +186,18 @@ arch_get_unmapped_area_topdown(struct fi - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = mm->mmap_base-len; -- if (do_colour_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -+ addr = mm->mmap_base - len; - - do { -+ if (do_colour_align) -+ addr = COLOUR_ALIGN_DOWN(addr, pgoff); - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -209,10 +207,8 @@ arch_get_unmapped_area_topdown(struct fi - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- if (do_colour_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -diff -urNp linux-3.0.4/arch/sparc/include/asm/atomic_64.h linux-3.0.4/arch/sparc/include/asm/atomic_64.h ---- linux-3.0.4/arch/sparc/include/asm/atomic_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/atomic_64.h 2011-08-23 21:48:14.000000000 -0400 -@@ -14,18 +14,40 @@ - #define ATOMIC64_INIT(i) { (i) } - - #define atomic_read(v) (*(volatile int *)&(v)->counter) -+static inline int atomic_read_unchecked(const atomic_unchecked_t *v) -+{ -+ return v->counter; -+} - #define atomic64_read(v) (*(volatile long *)&(v)->counter) -+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) -+{ -+ return v->counter; -+} - - #define atomic_set(v, i) (((v)->counter) = i) -+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) -+{ -+ v->counter = i; -+} - #define atomic64_set(v, i) (((v)->counter) = i) -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) -+{ -+ v->counter = i; -+} - - extern void atomic_add(int, atomic_t *); -+extern void atomic_add_unchecked(int, atomic_unchecked_t *); - extern void atomic64_add(long, atomic64_t *); -+extern void atomic64_add_unchecked(long, atomic64_unchecked_t *); - extern void atomic_sub(int, atomic_t *); -+extern void atomic_sub_unchecked(int, atomic_unchecked_t *); - extern void atomic64_sub(long, atomic64_t *); -+extern void atomic64_sub_unchecked(long, atomic64_unchecked_t *); - - extern int atomic_add_ret(int, atomic_t *); -+extern int atomic_add_ret_unchecked(int, atomic_unchecked_t *); - extern long atomic64_add_ret(long, atomic64_t *); -+extern long atomic64_add_ret_unchecked(long, atomic64_unchecked_t *); - extern int atomic_sub_ret(int, atomic_t *); - extern long atomic64_sub_ret(long, atomic64_t *); - -@@ -33,13 +55,29 @@ extern long atomic64_sub_ret(long, atomi - #define atomic64_dec_return(v) atomic64_sub_ret(1, v) - - #define atomic_inc_return(v) atomic_add_ret(1, v) -+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_ret_unchecked(1, v); -+} - #define atomic64_inc_return(v) atomic64_add_ret(1, v) -+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ return atomic64_add_ret_unchecked(1, v); -+} - - #define atomic_sub_return(i, v) atomic_sub_ret(i, v) - #define atomic64_sub_return(i, v) atomic64_sub_ret(i, v) - - #define atomic_add_return(i, v) atomic_add_ret(i, v) -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ return atomic_add_ret_unchecked(i, v); -+} - #define atomic64_add_return(i, v) atomic64_add_ret(i, v) -+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) -+{ -+ return atomic64_add_ret_unchecked(i, v); -+} - - /* - * atomic_inc_and_test - increment and test -@@ -50,6 +88,10 @@ extern long atomic64_sub_ret(long, atomi - * other cases. - */ - #define atomic_inc_and_test(v) (atomic_inc_return(v) == 0) -+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_inc_return_unchecked(v) == 0; -+} - #define atomic64_inc_and_test(v) (atomic64_inc_return(v) == 0) - - #define atomic_sub_and_test(i, v) (atomic_sub_ret(i, v) == 0) -@@ -59,30 +101,65 @@ extern long atomic64_sub_ret(long, atomi - #define atomic64_dec_and_test(v) (atomic64_sub_ret(1, v) == 0) - - #define atomic_inc(v) atomic_add(1, v) -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_add_unchecked(1, v); -+} - #define atomic64_inc(v) atomic64_add(1, v) -+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) -+{ -+ atomic64_add_unchecked(1, v); -+} - - #define atomic_dec(v) atomic_sub(1, v) -+static inline void atomic_dec_unchecked(atomic_unchecked_t *v) -+{ -+ atomic_sub_unchecked(1, v); -+} - #define atomic64_dec(v) atomic64_sub(1, v) -+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) -+{ -+ atomic64_sub_unchecked(1, v); -+} - - #define atomic_add_negative(i, v) (atomic_add_ret(i, v) < 0) - #define atomic64_add_negative(i, v) (atomic64_add_ret(i, v) < 0) - - #define atomic_cmpxchg(v, o, n) (cmpxchg(&((v)->counter), (o), (n))) -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} - #define atomic_xchg(v, new) (xchg(&((v)->counter), new)) -+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) -+{ -+ return xchg(&v->counter, new); -+} - - static inline int atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addcc %2, %0, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "tvs %%icc, 6\n" -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a) -+ : "cc"); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) -@@ -90,20 +167,35 @@ static inline int atomic_add_unless(atom - #define atomic64_cmpxchg(v, o, n) \ - ((__typeof__((v)->counter))cmpxchg(&((v)->counter), (o), (n))) - #define atomic64_xchg(v, new) (xchg(&((v)->counter), new)) -+static inline long atomic64_xchg_unchecked(atomic64_unchecked_t *v, long new) -+{ -+ return xchg(&v->counter, new); -+} - - static inline long atomic64_add_unless(atomic64_t *v, long a, long u) - { -- long c, old; -+ long c, old, new; - c = atomic64_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic64_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addcc %2, %0, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "tvs %%xcc, 6\n" -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a) -+ : "cc"); -+ -+ old = atomic64_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) -diff -urNp linux-3.0.4/arch/sparc/include/asm/cache.h linux-3.0.4/arch/sparc/include/asm/cache.h ---- linux-3.0.4/arch/sparc/include/asm/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/cache.h 2011-08-23 21:47:55.000000000 -0400 -@@ -10,7 +10,7 @@ - #define ARCH_SLAB_MINALIGN __alignof__(unsigned long long) - - #define L1_CACHE_SHIFT 5 --#define L1_CACHE_BYTES 32 -+#define L1_CACHE_BYTES 32UL - - #ifdef CONFIG_SPARC32 - #define SMP_CACHE_BYTES_SHIFT 5 -diff -urNp linux-3.0.4/arch/sparc/include/asm/elf_32.h linux-3.0.4/arch/sparc/include/asm/elf_32.h ---- linux-3.0.4/arch/sparc/include/asm/elf_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/elf_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -114,6 +114,13 @@ typedef struct { - - #define ELF_ET_DYN_BASE (TASK_UNMAPPED_BASE) - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE 0x10000UL -+ -+#define PAX_DELTA_MMAP_LEN 16 -+#define PAX_DELTA_STACK_LEN 16 -+#endif -+ - /* This yields a mask that user programs can use to figure out what - instruction set this cpu supports. This can NOT be done in userspace - on Sparc. */ -diff -urNp linux-3.0.4/arch/sparc/include/asm/elf_64.h linux-3.0.4/arch/sparc/include/asm/elf_64.h ---- linux-3.0.4/arch/sparc/include/asm/elf_64.h 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/elf_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -180,6 +180,13 @@ typedef struct { - #define ELF_ET_DYN_BASE 0x0000010000000000UL - #define COMPAT_ELF_ET_DYN_BASE 0x0000000070000000UL - -+#ifdef CONFIG_PAX_ASLR -+#define PAX_ELF_ET_DYN_BASE (test_thread_flag(TIF_32BIT) ? 0x10000UL : 0x100000UL) -+ -+#define PAX_DELTA_MMAP_LEN (test_thread_flag(TIF_32BIT) ? 14 : 28) -+#define PAX_DELTA_STACK_LEN (test_thread_flag(TIF_32BIT) ? 15 : 29) -+#endif -+ - extern unsigned long sparc64_elf_hwcap; - #define ELF_HWCAP sparc64_elf_hwcap - -diff -urNp linux-3.0.4/arch/sparc/include/asm/pgtable_32.h linux-3.0.4/arch/sparc/include/asm/pgtable_32.h ---- linux-3.0.4/arch/sparc/include/asm/pgtable_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/pgtable_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -45,6 +45,13 @@ BTFIXUPDEF_SIMM13(user_ptrs_per_pgd) - BTFIXUPDEF_INT(page_none) - BTFIXUPDEF_INT(page_copy) - BTFIXUPDEF_INT(page_readonly) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+BTFIXUPDEF_INT(page_shared_noexec) -+BTFIXUPDEF_INT(page_copy_noexec) -+BTFIXUPDEF_INT(page_readonly_noexec) -+#endif -+ - BTFIXUPDEF_INT(page_kernel) - - #define PMD_SHIFT SUN4C_PMD_SHIFT -@@ -66,6 +73,16 @@ extern pgprot_t PAGE_SHARED; - #define PAGE_COPY __pgprot(BTFIXUP_INT(page_copy)) - #define PAGE_READONLY __pgprot(BTFIXUP_INT(page_readonly)) - -+#ifdef CONFIG_PAX_PAGEEXEC -+extern pgprot_t PAGE_SHARED_NOEXEC; -+# define PAGE_COPY_NOEXEC __pgprot(BTFIXUP_INT(page_copy_noexec)) -+# define PAGE_READONLY_NOEXEC __pgprot(BTFIXUP_INT(page_readonly_noexec)) -+#else -+# define PAGE_SHARED_NOEXEC PAGE_SHARED -+# define PAGE_COPY_NOEXEC PAGE_COPY -+# define PAGE_READONLY_NOEXEC PAGE_READONLY -+#endif -+ - extern unsigned long page_kernel; - - #ifdef MODULE -diff -urNp linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h ---- linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/pgtsrmmu.h 2011-08-23 21:47:55.000000000 -0400 -@@ -115,6 +115,13 @@ - SRMMU_EXEC | SRMMU_REF) - #define SRMMU_PAGE_RDONLY __pgprot(SRMMU_VALID | SRMMU_CACHE | \ - SRMMU_EXEC | SRMMU_REF) -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+#define SRMMU_PAGE_SHARED_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_WRITE | SRMMU_REF) -+#define SRMMU_PAGE_COPY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#define SRMMU_PAGE_RDONLY_NOEXEC __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_REF) -+#endif -+ - #define SRMMU_PAGE_KERNEL __pgprot(SRMMU_VALID | SRMMU_CACHE | SRMMU_PRIV | \ - SRMMU_DIRTY | SRMMU_REF) - -diff -urNp linux-3.0.4/arch/sparc/include/asm/spinlock_64.h linux-3.0.4/arch/sparc/include/asm/spinlock_64.h ---- linux-3.0.4/arch/sparc/include/asm/spinlock_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/spinlock_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -92,14 +92,19 @@ static inline void arch_spin_lock_flags( - - /* Multi-reader locks, these are much saner than the 32-bit Sparc ones... */ - --static void inline arch_read_lock(arch_rwlock_t *lock) -+static inline void arch_read_lock(arch_rwlock_t *lock) - { - unsigned long tmp1, tmp2; - - __asm__ __volatile__ ( - "1: ldsw [%2], %0\n" - " brlz,pn %0, 2f\n" --"4: add %0, 1, %1\n" -+"4: addcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%icc, 1b\n" -@@ -112,10 +117,10 @@ static void inline arch_read_lock(arch_r - " .previous" - : "=&r" (tmp1), "=&r" (tmp2) - : "r" (lock) -- : "memory"); -+ : "memory", "cc"); - } - --static int inline arch_read_trylock(arch_rwlock_t *lock) -+static inline int arch_read_trylock(arch_rwlock_t *lock) - { - int tmp1, tmp2; - -@@ -123,7 +128,12 @@ static int inline arch_read_trylock(arch - "1: ldsw [%2], %0\n" - " brlz,a,pn %0, 2f\n" - " mov 0, %0\n" --" add %0, 1, %1\n" -+" addcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%icc, 1b\n" -@@ -136,13 +146,18 @@ static int inline arch_read_trylock(arch - return tmp1; - } - --static void inline arch_read_unlock(arch_rwlock_t *lock) -+static inline void arch_read_unlock(arch_rwlock_t *lock) - { - unsigned long tmp1, tmp2; - - __asm__ __volatile__( - "1: lduw [%2], %0\n" --" sub %0, 1, %1\n" -+" subcc %0, 1, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+" tvs %%icc, 6\n" -+#endif -+ - " cas [%2], %0, %1\n" - " cmp %0, %1\n" - " bne,pn %%xcc, 1b\n" -@@ -152,7 +167,7 @@ static void inline arch_read_unlock(arch - : "memory"); - } - --static void inline arch_write_lock(arch_rwlock_t *lock) -+static inline void arch_write_lock(arch_rwlock_t *lock) - { - unsigned long mask, tmp1, tmp2; - -@@ -177,7 +192,7 @@ static void inline arch_write_lock(arch_ - : "memory"); - } - --static void inline arch_write_unlock(arch_rwlock_t *lock) -+static inline void arch_write_unlock(arch_rwlock_t *lock) - { - __asm__ __volatile__( - " stw %%g0, [%0]" -@@ -186,7 +201,7 @@ static void inline arch_write_unlock(arc - : "memory"); - } - --static int inline arch_write_trylock(arch_rwlock_t *lock) -+static inline int arch_write_trylock(arch_rwlock_t *lock) - { - unsigned long mask, tmp1, tmp2, result; - -diff -urNp linux-3.0.4/arch/sparc/include/asm/thread_info_32.h linux-3.0.4/arch/sparc/include/asm/thread_info_32.h ---- linux-3.0.4/arch/sparc/include/asm/thread_info_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/thread_info_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -50,6 +50,8 @@ struct thread_info { - unsigned long w_saved; - - struct restart_block restart_block; -+ -+ unsigned long lowest_stack; - }; - - /* -diff -urNp linux-3.0.4/arch/sparc/include/asm/thread_info_64.h linux-3.0.4/arch/sparc/include/asm/thread_info_64.h ---- linux-3.0.4/arch/sparc/include/asm/thread_info_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/thread_info_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -63,6 +63,8 @@ struct thread_info { - struct pt_regs *kern_una_regs; - unsigned int kern_una_insn; - -+ unsigned long lowest_stack; -+ - unsigned long fpregs[0] __attribute__ ((aligned(64))); - }; - -diff -urNp linux-3.0.4/arch/sparc/include/asm/uaccess_32.h linux-3.0.4/arch/sparc/include/asm/uaccess_32.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -249,27 +249,46 @@ extern unsigned long __copy_user(void __ - - static inline unsigned long copy_to_user(void __user *to, const void *from, unsigned long n) - { -- if (n && __access_ok((unsigned long) to, n)) -+ if ((long)n < 0) -+ return n; -+ -+ if (n && __access_ok((unsigned long) to, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_user(to, (__force void __user *) from, n); -- else -+ } else - return n; - } - - static inline unsigned long __copy_to_user(void __user *to, const void *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); -+ - return __copy_user(to, (__force void __user *) from, n); - } - - static inline unsigned long copy_from_user(void *to, const void __user *from, unsigned long n) - { -- if (n && __access_ok((unsigned long) from, n)) -+ if ((long)n < 0) -+ return n; -+ -+ if (n && __access_ok((unsigned long) from, n)) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_user((__force void __user *) to, from, n); -- else -+ } else - return n; - } - - static inline unsigned long __copy_from_user(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - return __copy_user((__force void __user *) to, from, n); - } - -diff -urNp linux-3.0.4/arch/sparc/include/asm/uaccess_64.h linux-3.0.4/arch/sparc/include/asm/uaccess_64.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -10,6 +10,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -213,8 +214,15 @@ extern unsigned long copy_from_user_fixu - static inline unsigned long __must_check - copy_from_user(void *to, const void __user *from, unsigned long size) - { -- unsigned long ret = ___copy_from_user(to, from, size); -+ unsigned long ret; - -+ if ((long)size < 0 || size > INT_MAX) -+ return size; -+ -+ if (!__builtin_constant_p(size)) -+ check_object_size(to, size, false); -+ -+ ret = ___copy_from_user(to, from, size); - if (unlikely(ret)) - ret = copy_from_user_fixup(to, from, size); - -@@ -230,8 +238,15 @@ extern unsigned long copy_to_user_fixup( - static inline unsigned long __must_check - copy_to_user(void __user *to, const void *from, unsigned long size) - { -- unsigned long ret = ___copy_to_user(to, from, size); -+ unsigned long ret; -+ -+ if ((long)size < 0 || size > INT_MAX) -+ return size; -+ -+ if (!__builtin_constant_p(size)) -+ check_object_size(from, size, true); - -+ ret = ___copy_to_user(to, from, size); - if (unlikely(ret)) - ret = copy_to_user_fixup(to, from, size); - return ret; -diff -urNp linux-3.0.4/arch/sparc/include/asm/uaccess.h linux-3.0.4/arch/sparc/include/asm/uaccess.h ---- linux-3.0.4/arch/sparc/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -1,5 +1,13 @@ - #ifndef ___ASM_SPARC_UACCESS_H - #define ___ASM_SPARC_UACCESS_H -+ -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#include -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+#endif -+#endif -+ - #if defined(__sparc__) && defined(__arch64__) - #include - #else -diff -urNp linux-3.0.4/arch/sparc/kernel/Makefile linux-3.0.4/arch/sparc/kernel/Makefile ---- linux-3.0.4/arch/sparc/kernel/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -3,7 +3,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - extra-y := head_$(BITS).o - extra-y += init_task.o -diff -urNp linux-3.0.4/arch/sparc/kernel/process_32.c linux-3.0.4/arch/sparc/kernel/process_32.c ---- linux-3.0.4/arch/sparc/kernel/process_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/process_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -204,7 +204,7 @@ void __show_backtrace(unsigned long fp) - rw->ins[4], rw->ins[5], - rw->ins[6], - rw->ins[7]); -- printk("%pS\n", (void *) rw->ins[7]); -+ printk("%pA\n", (void *) rw->ins[7]); - rw = (struct reg_window32 *) rw->ins[6]; - } - spin_unlock_irqrestore(&sparc_backtrace_lock, flags); -@@ -271,14 +271,14 @@ void show_regs(struct pt_regs *r) - - printk("PSR: %08lx PC: %08lx NPC: %08lx Y: %08lx %s\n", - r->psr, r->pc, r->npc, r->y, print_tainted()); -- printk("PC: <%pS>\n", (void *) r->pc); -+ printk("PC: <%pA>\n", (void *) r->pc); - printk("%%G: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - r->u_regs[0], r->u_regs[1], r->u_regs[2], r->u_regs[3], - r->u_regs[4], r->u_regs[5], r->u_regs[6], r->u_regs[7]); - printk("%%O: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - r->u_regs[8], r->u_regs[9], r->u_regs[10], r->u_regs[11], - r->u_regs[12], r->u_regs[13], r->u_regs[14], r->u_regs[15]); -- printk("RPC: <%pS>\n", (void *) r->u_regs[15]); -+ printk("RPC: <%pA>\n", (void *) r->u_regs[15]); - - printk("%%L: %08lx %08lx %08lx %08lx %08lx %08lx %08lx %08lx\n", - rw->locals[0], rw->locals[1], rw->locals[2], rw->locals[3], -@@ -313,7 +313,7 @@ void show_stack(struct task_struct *tsk, - rw = (struct reg_window32 *) fp; - pc = rw->ins[7]; - printk("[%08lx : ", pc); -- printk("%pS ] ", (void *) pc); -+ printk("%pA ] ", (void *) pc); - fp = rw->ins[6]; - } while (++count < 16); - printk("\n"); -diff -urNp linux-3.0.4/arch/sparc/kernel/process_64.c linux-3.0.4/arch/sparc/kernel/process_64.c ---- linux-3.0.4/arch/sparc/kernel/process_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/process_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -180,14 +180,14 @@ static void show_regwindow(struct pt_reg - printk("i4: %016lx i5: %016lx i6: %016lx i7: %016lx\n", - rwk->ins[4], rwk->ins[5], rwk->ins[6], rwk->ins[7]); - if (regs->tstate & TSTATE_PRIV) -- printk("I7: <%pS>\n", (void *) rwk->ins[7]); -+ printk("I7: <%pA>\n", (void *) rwk->ins[7]); - } - - void show_regs(struct pt_regs *regs) - { - printk("TSTATE: %016lx TPC: %016lx TNPC: %016lx Y: %08x %s\n", regs->tstate, - regs->tpc, regs->tnpc, regs->y, print_tainted()); -- printk("TPC: <%pS>\n", (void *) regs->tpc); -+ printk("TPC: <%pA>\n", (void *) regs->tpc); - printk("g0: %016lx g1: %016lx g2: %016lx g3: %016lx\n", - regs->u_regs[0], regs->u_regs[1], regs->u_regs[2], - regs->u_regs[3]); -@@ -200,7 +200,7 @@ void show_regs(struct pt_regs *regs) - printk("o4: %016lx o5: %016lx sp: %016lx ret_pc: %016lx\n", - regs->u_regs[12], regs->u_regs[13], regs->u_regs[14], - regs->u_regs[15]); -- printk("RPC: <%pS>\n", (void *) regs->u_regs[15]); -+ printk("RPC: <%pA>\n", (void *) regs->u_regs[15]); - show_regwindow(regs); - show_stack(current, (unsigned long *) regs->u_regs[UREG_FP]); - } -@@ -285,7 +285,7 @@ void arch_trigger_all_cpu_backtrace(void - ((tp && tp->task) ? tp->task->pid : -1)); - - if (gp->tstate & TSTATE_PRIV) { -- printk(" TPC[%pS] O7[%pS] I7[%pS] RPC[%pS]\n", -+ printk(" TPC[%pA] O7[%pA] I7[%pA] RPC[%pA]\n", - (void *) gp->tpc, - (void *) gp->o7, - (void *) gp->i7, -diff -urNp linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c ---- linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/sys_sparc_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -56,7 +56,7 @@ unsigned long arch_get_unmapped_area(str - if (ARCH_SUN4C && len > 0x20000000) - return -ENOMEM; - if (!addr) -- addr = TASK_UNMAPPED_BASE; -+ addr = current->mm->mmap_base; - - if (flags & MAP_SHARED) - addr = COLOUR_ALIGN(addr); -@@ -71,7 +71,7 @@ unsigned long arch_get_unmapped_area(str - } - if (TASK_SIZE - PAGE_SIZE - len < addr) - return -ENOMEM; -- if (!vmm || addr + len <= vmm->vm_start) -+ if (check_heap_stack_gap(vmm, addr, len)) - return addr; - addr = vmm->vm_end; - if (flags & MAP_SHARED) -diff -urNp linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c ---- linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/sys_sparc_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -124,7 +124,7 @@ unsigned long arch_get_unmapped_area(str - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -139,6 +139,10 @@ unsigned long arch_get_unmapped_area(str - if (filp || (flags & MAP_SHARED)) - do_color_align = 1; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - if (do_color_align) - addr = COLOUR_ALIGN(addr, pgoff); -@@ -146,15 +150,14 @@ unsigned long arch_get_unmapped_area(str - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - - if (len > mm->cached_hole_size) { -- start_addr = addr = mm->free_area_cache; -+ start_addr = addr = mm->free_area_cache; - } else { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - } - -@@ -174,14 +177,14 @@ full_search: - vma = find_vma(mm, VA_EXCLUDE_END); - } - if (unlikely(task_size < addr)) { -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -215,7 +218,7 @@ arch_get_unmapped_area_topdown(struct fi - /* We do not accept a shared mapping if it would violate - * cache aliasing constraints. - */ -- if ((flags & MAP_SHARED) && -+ if ((filp || (flags & MAP_SHARED)) && - ((addr - (pgoff << PAGE_SHIFT)) & (SHMLBA - 1))) - return -EINVAL; - return addr; -@@ -236,8 +239,7 @@ arch_get_unmapped_area_topdown(struct fi - addr = PAGE_ALIGN(addr); - - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - -@@ -258,7 +260,7 @@ arch_get_unmapped_area_topdown(struct fi - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -267,18 +269,18 @@ arch_get_unmapped_area_topdown(struct fi - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = mm->mmap_base-len; -- if (do_color_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -+ addr = mm->mmap_base - len; - - do { -+ if (do_color_align) -+ addr = COLOUR_ALIGN_DOWN(addr, pgoff); - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -288,10 +290,8 @@ arch_get_unmapped_area_topdown(struct fi - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- if (do_color_align) -- addr = COLOUR_ALIGN_DOWN(addr, pgoff); -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -@@ -390,6 +390,12 @@ void arch_pick_mmap_layout(struct mm_str - gap == RLIM_INFINITY || - sysctl_legacy_va_layout) { - mm->mmap_base = TASK_UNMAPPED_BASE + random_factor; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -@@ -402,6 +408,12 @@ void arch_pick_mmap_layout(struct mm_str - gap = (task_size / 6 * 5); - - mm->mmap_base = PAGE_ALIGN(task_size - gap - random_factor); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-3.0.4/arch/sparc/kernel/traps_32.c linux-3.0.4/arch/sparc/kernel/traps_32.c ---- linux-3.0.4/arch/sparc/kernel/traps_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/traps_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,8 @@ static void instruction_dump(unsigned lo - #define __SAVE __asm__ __volatile__("save %sp, -0x40, %sp\n\t") - #define __RESTORE __asm__ __volatile__("restore %g0, %g0, %g0\n\t") - -+extern void gr_handle_kernel_exploit(void); -+ - void die_if_kernel(char *str, struct pt_regs *regs) - { - static int die_counter; -@@ -76,15 +78,17 @@ void die_if_kernel(char *str, struct pt_ - count++ < 30 && - (((unsigned long) rw) >= PAGE_OFFSET) && - !(((unsigned long) rw) & 0x7)) { -- printk("Caller[%08lx]: %pS\n", rw->ins[7], -+ printk("Caller[%08lx]: %pA\n", rw->ins[7], - (void *) rw->ins[7]); - rw = (struct reg_window32 *)rw->ins[6]; - } - } - printk("Instruction DUMP:"); - instruction_dump ((unsigned long *) regs->pc); -- if(regs->psr & PSR_PS) -+ if(regs->psr & PSR_PS) { -+ gr_handle_kernel_exploit(); - do_exit(SIGKILL); -+ } - do_exit(SIGSEGV); - } - -diff -urNp linux-3.0.4/arch/sparc/kernel/traps_64.c linux-3.0.4/arch/sparc/kernel/traps_64.c ---- linux-3.0.4/arch/sparc/kernel/traps_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/traps_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -75,7 +75,7 @@ static void dump_tl1_traplog(struct tl1_ - i + 1, - p->trapstack[i].tstate, p->trapstack[i].tpc, - p->trapstack[i].tnpc, p->trapstack[i].tt); -- printk("TRAPLOG: TPC<%pS>\n", (void *) p->trapstack[i].tpc); -+ printk("TRAPLOG: TPC<%pA>\n", (void *) p->trapstack[i].tpc); - } - } - -@@ -95,6 +95,12 @@ void bad_trap(struct pt_regs *regs, long - - lvl -= 0x100; - if (regs->tstate & TSTATE_PRIV) { -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (lvl == 6) -+ pax_report_refcount_overflow(regs); -+#endif -+ - sprintf(buffer, "Kernel bad sw trap %lx", lvl); - die_if_kernel(buffer, regs); - } -@@ -113,11 +119,16 @@ void bad_trap(struct pt_regs *regs, long - void bad_trap_tl1(struct pt_regs *regs, long lvl) - { - char buffer[32]; -- -+ - if (notify_die(DIE_TRAP_TL1, "bad trap tl1", regs, - 0, lvl, SIGTRAP) == NOTIFY_STOP) - return; - -+#ifdef CONFIG_PAX_REFCOUNT -+ if (lvl == 6) -+ pax_report_refcount_overflow(regs); -+#endif -+ - dump_tl1_traplog((struct tl1_traplog *)(regs + 1)); - - sprintf (buffer, "Bad trap %lx at tl>0", lvl); -@@ -1141,7 +1152,7 @@ static void cheetah_log_errors(struct pt - regs->tpc, regs->tnpc, regs->u_regs[UREG_I7], regs->tstate); - printk("%s" "ERROR(%d): ", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id()); -- printk("TPC<%pS>\n", (void *) regs->tpc); -+ printk("TPC<%pA>\n", (void *) regs->tpc); - printk("%s" "ERROR(%d): M_SYND(%lx), E_SYND(%lx)%s%s\n", - (recoverable ? KERN_WARNING : KERN_CRIT), smp_processor_id(), - (afsr & CHAFSR_M_SYNDROME) >> CHAFSR_M_SYNDROME_SHIFT, -@@ -1748,7 +1759,7 @@ void cheetah_plus_parity_error(int type, - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); -- printk(KERN_EMERG "TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "TPC<%pA>\n", (void *) regs->tpc); - panic("Irrecoverable Cheetah+ parity error."); - } - -@@ -1756,7 +1767,7 @@ void cheetah_plus_parity_error(int type, - smp_processor_id(), - (type & 0x1) ? 'I' : 'D', - regs->tpc); -- printk(KERN_WARNING "TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_WARNING "TPC<%pA>\n", (void *) regs->tpc); - } - - struct sun4v_error_entry { -@@ -1963,9 +1974,9 @@ void sun4v_itlb_error_report(struct pt_r - - printk(KERN_EMERG "SUN4V-ITLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); -- printk(KERN_EMERG "SUN4V-ITLB: TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "SUN4V-ITLB: TPC<%pA>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-ITLB: O7[%lx]\n", regs->u_regs[UREG_I7]); -- printk(KERN_EMERG "SUN4V-ITLB: O7<%pS>\n", -+ printk(KERN_EMERG "SUN4V-ITLB: O7<%pA>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-ITLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", -@@ -1987,9 +1998,9 @@ void sun4v_dtlb_error_report(struct pt_r - - printk(KERN_EMERG "SUN4V-DTLB: Error at TPC[%lx], tl %d\n", - regs->tpc, tl); -- printk(KERN_EMERG "SUN4V-DTLB: TPC<%pS>\n", (void *) regs->tpc); -+ printk(KERN_EMERG "SUN4V-DTLB: TPC<%pA>\n", (void *) regs->tpc); - printk(KERN_EMERG "SUN4V-DTLB: O7[%lx]\n", regs->u_regs[UREG_I7]); -- printk(KERN_EMERG "SUN4V-DTLB: O7<%pS>\n", -+ printk(KERN_EMERG "SUN4V-DTLB: O7<%pA>\n", - (void *) regs->u_regs[UREG_I7]); - printk(KERN_EMERG "SUN4V-DTLB: vaddr[%lx] ctx[%lx] " - "pte[%lx] error[%lx]\n", -@@ -2195,13 +2206,13 @@ void show_stack(struct task_struct *tsk, - fp = (unsigned long)sf->fp + STACK_BIAS; - } - -- printk(" [%016lx] %pS\n", pc, (void *) pc); -+ printk(" [%016lx] %pA\n", pc, (void *) pc); - #ifdef CONFIG_FUNCTION_GRAPH_TRACER - if ((pc + 8UL) == (unsigned long) &return_to_handler) { - int index = tsk->curr_ret_stack; - if (tsk->ret_stack && index >= graph) { - pc = tsk->ret_stack[index - graph].ret; -- printk(" [%016lx] %pS\n", pc, (void *) pc); -+ printk(" [%016lx] %pA\n", pc, (void *) pc); - graph++; - } - } -@@ -2226,6 +2237,8 @@ static inline struct reg_window *kernel_ - return (struct reg_window *) (fp + STACK_BIAS); - } - -+extern void gr_handle_kernel_exploit(void); -+ - void die_if_kernel(char *str, struct pt_regs *regs) - { - static int die_counter; -@@ -2254,7 +2267,7 @@ void die_if_kernel(char *str, struct pt_ - while (rw && - count++ < 30 && - kstack_valid(tp, (unsigned long) rw)) { -- printk("Caller[%016lx]: %pS\n", rw->ins[7], -+ printk("Caller[%016lx]: %pA\n", rw->ins[7], - (void *) rw->ins[7]); - - rw = kernel_stack_up(rw); -@@ -2267,8 +2280,10 @@ void die_if_kernel(char *str, struct pt_ - } - user_instruction_dump ((unsigned int __user *) regs->tpc); - } -- if (regs->tstate & TSTATE_PRIV) -+ if (regs->tstate & TSTATE_PRIV) { -+ gr_handle_kernel_exploit(); - do_exit(SIGKILL); -+ } - do_exit(SIGSEGV); - } - EXPORT_SYMBOL(die_if_kernel); -diff -urNp linux-3.0.4/arch/sparc/kernel/unaligned_64.c linux-3.0.4/arch/sparc/kernel/unaligned_64.c ---- linux-3.0.4/arch/sparc/kernel/unaligned_64.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/arch/sparc/kernel/unaligned_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -279,7 +279,7 @@ static void log_unaligned(struct pt_regs - static DEFINE_RATELIMIT_STATE(ratelimit, 5 * HZ, 5); - - if (__ratelimit(&ratelimit)) { -- printk("Kernel unaligned access at TPC[%lx] %pS\n", -+ printk("Kernel unaligned access at TPC[%lx] %pA\n", - regs->tpc, (void *) regs->tpc); - } - } -diff -urNp linux-3.0.4/arch/sparc/lib/atomic_64.S linux-3.0.4/arch/sparc/lib/atomic_64.S ---- linux-3.0.4/arch/sparc/lib/atomic_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/atomic_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -18,7 +18,12 @@ - atomic_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -28,12 +33,32 @@ atomic_add: /* %o0 = increment, %o1 = at - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add, .-atomic_add - -+ .globl atomic_add_unchecked -+ .type atomic_add_unchecked,#function -+atomic_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ add %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_add_unchecked, .-atomic_add_unchecked -+ - .globl atomic_sub - .type atomic_sub,#function - atomic_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -43,12 +68,32 @@ atomic_sub: /* %o0 = decrement, %o1 = at - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_sub, .-atomic_sub - -+ .globl atomic_sub_unchecked -+ .type atomic_sub_unchecked,#function -+atomic_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ sub %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_sub_unchecked, .-atomic_sub_unchecked -+ - .globl atomic_add_ret - .type atomic_add_ret,#function - atomic_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -58,12 +103,33 @@ atomic_add_ret: /* %o0 = increment, %o1 - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic_add_ret, .-atomic_add_ret - -+ .globl atomic_add_ret_unchecked -+ .type atomic_add_ret_unchecked,#function -+atomic_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: lduw [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ cas [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %icc, 2f -+ add %g7, %o0, %g7 -+ sra %g7, 0, %o0 -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic_add_ret_unchecked, .-atomic_add_ret_unchecked -+ - .globl atomic_sub_ret - .type atomic_sub_ret,#function - atomic_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: lduw [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %icc, 6 -+#endif -+ - cas [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %icc, BACKOFF_LABEL(2f, 1b) -@@ -78,7 +144,12 @@ atomic_sub_ret: /* %o0 = decrement, %o1 - atomic64_add: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -88,12 +159,32 @@ atomic64_add: /* %o0 = increment, %o1 = - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add, .-atomic64_add - -+ .globl atomic64_add_unchecked -+ .type atomic64_add_unchecked,#function -+atomic64_add_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_add_unchecked, .-atomic64_add_unchecked -+ - .globl atomic64_sub - .type atomic64_sub,#function - atomic64_sub: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -103,12 +194,32 @@ atomic64_sub: /* %o0 = decrement, %o1 = - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_sub, .-atomic64_sub - -+ .globl atomic64_sub_unchecked -+ .type atomic64_sub_unchecked,#function -+atomic64_sub_unchecked: /* %o0 = decrement, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ subcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ nop -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_sub_unchecked, .-atomic64_sub_unchecked -+ - .globl atomic64_add_ret - .type atomic64_add_ret,#function - atomic64_add_ret: /* %o0 = increment, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- add %g1, %o0, %g7 -+ addcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -@@ -118,12 +229,33 @@ atomic64_add_ret: /* %o0 = increment, %o - 2: BACKOFF_SPIN(%o2, %o3, 1b) - .size atomic64_add_ret, .-atomic64_add_ret - -+ .globl atomic64_add_ret_unchecked -+ .type atomic64_add_ret_unchecked,#function -+atomic64_add_ret_unchecked: /* %o0 = increment, %o1 = atomic_ptr */ -+ BACKOFF_SETUP(%o2) -+1: ldx [%o1], %g1 -+ addcc %g1, %o0, %g7 -+ casx [%o1], %g1, %g7 -+ cmp %g1, %g7 -+ bne,pn %xcc, 2f -+ add %g7, %o0, %g7 -+ mov %g7, %o0 -+ retl -+ nop -+2: BACKOFF_SPIN(%o2, %o3, 1b) -+ .size atomic64_add_ret_unchecked, .-atomic64_add_ret_unchecked -+ - .globl atomic64_sub_ret - .type atomic64_sub_ret,#function - atomic64_sub_ret: /* %o0 = decrement, %o1 = atomic_ptr */ - BACKOFF_SETUP(%o2) - 1: ldx [%o1], %g1 -- sub %g1, %o0, %g7 -+ subcc %g1, %o0, %g7 -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ tvs %xcc, 6 -+#endif -+ - casx [%o1], %g1, %g7 - cmp %g1, %g7 - bne,pn %xcc, BACKOFF_LABEL(2f, 1b) -diff -urNp linux-3.0.4/arch/sparc/lib/ksyms.c linux-3.0.4/arch/sparc/lib/ksyms.c ---- linux-3.0.4/arch/sparc/lib/ksyms.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/ksyms.c 2011-08-23 21:48:14.000000000 -0400 -@@ -142,12 +142,18 @@ EXPORT_SYMBOL(__downgrade_write); - - /* Atomic counter implementation. */ - EXPORT_SYMBOL(atomic_add); -+EXPORT_SYMBOL(atomic_add_unchecked); - EXPORT_SYMBOL(atomic_add_ret); -+EXPORT_SYMBOL(atomic_add_ret_unchecked); - EXPORT_SYMBOL(atomic_sub); -+EXPORT_SYMBOL(atomic_sub_unchecked); - EXPORT_SYMBOL(atomic_sub_ret); - EXPORT_SYMBOL(atomic64_add); -+EXPORT_SYMBOL(atomic64_add_unchecked); - EXPORT_SYMBOL(atomic64_add_ret); -+EXPORT_SYMBOL(atomic64_add_ret_unchecked); - EXPORT_SYMBOL(atomic64_sub); -+EXPORT_SYMBOL(atomic64_sub_unchecked); - EXPORT_SYMBOL(atomic64_sub_ret); - - /* Atomic bit operations. */ -diff -urNp linux-3.0.4/arch/sparc/lib/Makefile linux-3.0.4/arch/sparc/lib/Makefile ---- linux-3.0.4/arch/sparc/lib/Makefile 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/arch/sparc/lib/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi -DST_DIV0=0x02 --ccflags-y := -Werror -+#ccflags-y := -Werror - - lib-$(CONFIG_SPARC32) += mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o - lib-$(CONFIG_SPARC32) += memcpy.o memset.o -diff -urNp linux-3.0.4/arch/sparc/Makefile linux-3.0.4/arch/sparc/Makefile ---- linux-3.0.4/arch/sparc/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/Makefile 2011-08-23 21:48:14.000000000 -0400 -@@ -75,7 +75,7 @@ drivers-$(CONFIG_OPROFILE) += arch/sparc - # Export what is needed by arch/sparc/boot/Makefile - export VMLINUX_INIT VMLINUX_MAIN - VMLINUX_INIT := $(head-y) $(init-y) --VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ -+VMLINUX_MAIN := $(core-y) kernel/ mm/ fs/ ipc/ security/ crypto/ block/ grsecurity/ - VMLINUX_MAIN += $(patsubst %/, %/lib.a, $(libs-y)) $(libs-y) - VMLINUX_MAIN += $(drivers-y) $(net-y) - -diff -urNp linux-3.0.4/arch/sparc/mm/fault_32.c linux-3.0.4/arch/sparc/mm/fault_32.c ---- linux-3.0.4/arch/sparc/mm/fault_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/fault_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -22,6 +22,9 @@ - #include - #include - #include -+#include -+#include -+#include - - #include - #include -@@ -209,6 +212,268 @@ static unsigned long compute_si_addr(str - return safe_compute_effective_address(regs, insn); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_DLRESOLVE -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ INIT_LIST_HEAD(&vma->anon_vma_chain); -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->pc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->pc); -+ err |= get_user(sethi2, (unsigned int *)(regs->pc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned int addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->pc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned int addr; -+ -+ addr = regs->pc + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(jmpl, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned int addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->pc); -+ err |= get_user(ba, (unsigned int *)(regs->pc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->pc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned int addr, save, call; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->pc + 4 + ((((ba | 0xFFC00000U) ^ 0x00200000U) + 0x00200000U) << 2); -+ else -+ addr = regs->pc + 4 + ((((ba | 0xFFF80000U) ^ 0x00040000U) + 0x00040000U) << 2); -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->pc = call_dl_resolve; -+ regs->npc = addr+4; -+ return 3; -+ } -+#endif -+ -+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ -+ if ((save & 0xFFC00000U) == 0x05000000U && -+ (call & 0xFFFFE000U) == 0x85C0A000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G2] = addr + 4; -+ addr = (save & 0x003FFFFFU) << 10; -+ addr += (((call | 0xFFFFE000U) ^ 0x00001000U) + 0x00001000U); -+ regs->pc = addr; -+ regs->npc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->pc-4)); -+ err |= get_user(call, (unsigned int *)regs->pc); -+ err |= get_user(nop, (unsigned int *)(regs->pc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned int dl_resolve = regs->pc + ((((call | 0xC0000000U) ^ 0x20000000U) + 0x20000000U) << 2); -+ -+ regs->u_regs[UREG_RETPC] = regs->pc; -+ regs->pc = dl_resolve; -+ regs->npc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - static noinline void do_fault_siginfo(int code, int sig, struct pt_regs *regs, - int text_fault) - { -@@ -281,6 +546,24 @@ good_area: - if(!(vma->vm_flags & VM_WRITE)) - goto bad_area; - } else { -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && text_fault && !(vma->vm_flags & VM_EXEC)) { -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->pc, (void *)regs->u_regs[UREG_FP]); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Allow reads even for write-only mappings */ - if(!(vma->vm_flags & (VM_READ | VM_EXEC))) - goto bad_area; -diff -urNp linux-3.0.4/arch/sparc/mm/fault_64.c linux-3.0.4/arch/sparc/mm/fault_64.c ---- linux-3.0.4/arch/sparc/mm/fault_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/fault_64.c 2011-08-23 21:48:14.000000000 -0400 -@@ -21,6 +21,9 @@ - #include - #include - #include -+#include -+#include -+#include - - #include - #include -@@ -74,7 +77,7 @@ static void __kprobes bad_kernel_pc(stru - printk(KERN_CRIT "OOPS: Bogus kernel PC [%016lx] in fault handler\n", - regs->tpc); - printk(KERN_CRIT "OOPS: RPC [%016lx]\n", regs->u_regs[15]); -- printk("OOPS: RPC <%pS>\n", (void *) regs->u_regs[15]); -+ printk("OOPS: RPC <%pA>\n", (void *) regs->u_regs[15]); - printk(KERN_CRIT "OOPS: Fault was to vaddr[%lx]\n", vaddr); - dump_stack(); - unhandled_fault(regs->tpc, current, regs); -@@ -272,6 +275,457 @@ static void noinline __kprobes bogus_32b - show_regs(regs); - } - -+#ifdef CONFIG_PAX_PAGEEXEC -+#ifdef CONFIG_PAX_DLRESOLVE -+static void pax_emuplt_close(struct vm_area_struct *vma) -+{ -+ vma->vm_mm->call_dl_resolve = 0UL; -+} -+ -+static int pax_emuplt_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -+{ -+ unsigned int *kaddr; -+ -+ vmf->page = alloc_page(GFP_HIGHUSER); -+ if (!vmf->page) -+ return VM_FAULT_OOM; -+ -+ kaddr = kmap(vmf->page); -+ memset(kaddr, 0, PAGE_SIZE); -+ kaddr[0] = 0x9DE3BFA8U; /* save */ -+ flush_dcache_page(vmf->page); -+ kunmap(vmf->page); -+ return VM_FAULT_MAJOR; -+} -+ -+static const struct vm_operations_struct pax_vm_ops = { -+ .close = pax_emuplt_close, -+ .fault = pax_emuplt_fault -+}; -+ -+static int pax_insert_vma(struct vm_area_struct *vma, unsigned long addr) -+{ -+ int ret; -+ -+ INIT_LIST_HEAD(&vma->anon_vma_chain); -+ vma->vm_mm = current->mm; -+ vma->vm_start = addr; -+ vma->vm_end = addr + PAGE_SIZE; -+ vma->vm_flags = VM_READ | VM_EXEC | VM_MAYREAD | VM_MAYEXEC; -+ vma->vm_page_prot = vm_get_page_prot(vma->vm_flags); -+ vma->vm_ops = &pax_vm_ops; -+ -+ ret = insert_vm_struct(current->mm, vma); -+ if (ret) -+ return ret; -+ -+ ++current->mm->total_vm; -+ return 0; -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->tpc = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when patched PLT trampoline was detected -+ * 3 when unpatched PLT trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ -+#ifdef CONFIG_PAX_EMUPLT -+ int err; -+ -+ do { /* PaX: patched PLT emulation #1 */ -+ unsigned int sethi1, sethi2, jmpl; -+ -+ err = get_user(sethi1, (unsigned int *)regs->tpc); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi2 & 0x003FFFFFU) << 10; -+ addr = regs->u_regs[UREG_G1]; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ { /* PaX: patched PLT emulation #2 */ -+ unsigned int ba; -+ -+ err = get_user(ba, (unsigned int *)regs->tpc); -+ -+ if (!err && (ba & 0xFFC00000U) == 0x30800000U) { -+ unsigned long addr; -+ -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } -+ -+ do { /* PaX: patched PLT emulation #3 */ -+ unsigned int sethi, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (jmpl & 0xFFFFE000U) == 0x81C06000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr += (((jmpl | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #4 */ -+ unsigned int sethi, mov1, call, mov2; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(mov1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(call, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(mov2, (unsigned int *)(regs->tpc+12)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ mov1 == 0x8210000FU && -+ (call & 0xC0000000U) == 0x40000000U && -+ mov2 == 0x9E100001U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = regs->u_regs[UREG_RETPC]; -+ addr = regs->tpc + 4 + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #5 */ -+ unsigned int sethi, sethi1, sethi2, or1, or2, sllx, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(or1, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(or2, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+24)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+28)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x82106000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x83287020U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: patched PLT emulation #6 */ -+ unsigned int sethi, sethi1, sethi2, sllx, or, jmpl, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(sethi1, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(sethi2, (unsigned int *)(regs->tpc+8)); -+ err |= get_user(sllx, (unsigned int *)(regs->tpc+12)); -+ err |= get_user(or, (unsigned int *)(regs->tpc+16)); -+ err |= get_user(jmpl, (unsigned int *)(regs->tpc+20)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+24)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (sethi1 & 0xFFC00000U) == 0x03000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ sllx == 0x83287020U && -+ (or & 0xFFFFE000U) == 0x8A116000U && -+ jmpl == 0x81C04005U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ regs->u_regs[UREG_G1] = (sethi1 & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or & 0x3FFU); -+ addr = regs->u_regs[UREG_G1] + regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: unpatched PLT emulation step 1 */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ ((ba & 0xFFC00000U) == 0x30800000U || (ba & 0xFFF80000U) == 0x30680000U) && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ unsigned int save, call; -+ unsigned int sethi1, sethi2, or1, or2, sllx, add, jmpl; -+ -+ if ((ba & 0xFFC00000U) == 0x30800000U) -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFC00000UL) ^ 0x00200000UL) + 0x00200000UL) << 2); -+ else -+ addr = regs->tpc + 4 + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ err = get_user(save, (unsigned int *)addr); -+ err |= get_user(call, (unsigned int *)(addr+4)); -+ err |= get_user(nop, (unsigned int *)(addr+8)); -+ if (err) -+ break; -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ struct vm_area_struct *vma; -+ unsigned long call_dl_resolve; -+ -+ down_read(¤t->mm->mmap_sem); -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_read(¤t->mm->mmap_sem); -+ if (likely(call_dl_resolve)) -+ goto emulate; -+ -+ vma = kmem_cache_zalloc(vm_area_cachep, GFP_KERNEL); -+ -+ down_write(¤t->mm->mmap_sem); -+ if (current->mm->call_dl_resolve) { -+ call_dl_resolve = current->mm->call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ goto emulate; -+ } -+ -+ call_dl_resolve = get_unmapped_area(NULL, 0UL, PAGE_SIZE, 0UL, MAP_PRIVATE); -+ if (!vma || (call_dl_resolve & ~PAGE_MASK)) { -+ up_write(¤t->mm->mmap_sem); -+ if (vma) -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ if (pax_insert_vma(vma, call_dl_resolve)) { -+ up_write(¤t->mm->mmap_sem); -+ kmem_cache_free(vm_area_cachep, vma); -+ return 1; -+ } -+ -+ current->mm->call_dl_resolve = call_dl_resolve; -+ up_write(¤t->mm->mmap_sem); -+ -+emulate: -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->tpc = call_dl_resolve; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+#endif -+ -+ /* PaX: glibc 2.4+ generates sethi/jmpl instead of save/call */ -+ if ((save & 0xFFC00000U) == 0x05000000U && -+ (call & 0xFFFFE000U) == 0x85C0A000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G2] = addr + 4; -+ addr = (save & 0x003FFFFFU) << 10; -+ addr += (((call | 0xFFFFFFFFFFFFE000UL) ^ 0x00001000UL) + 0x00001000UL); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ -+ /* PaX: 64-bit PLT stub */ -+ err = get_user(sethi1, (unsigned int *)addr); -+ err |= get_user(sethi2, (unsigned int *)(addr+4)); -+ err |= get_user(or1, (unsigned int *)(addr+8)); -+ err |= get_user(or2, (unsigned int *)(addr+12)); -+ err |= get_user(sllx, (unsigned int *)(addr+16)); -+ err |= get_user(add, (unsigned int *)(addr+20)); -+ err |= get_user(jmpl, (unsigned int *)(addr+24)); -+ err |= get_user(nop, (unsigned int *)(addr+28)); -+ if (err) -+ break; -+ -+ if ((sethi1 & 0xFFC00000U) == 0x09000000U && -+ (sethi2 & 0xFFC00000U) == 0x0B000000U && -+ (or1 & 0xFFFFE000U) == 0x88112000U && -+ (or2 & 0xFFFFE000U) == 0x8A116000U && -+ sllx == 0x89293020U && -+ add == 0x8A010005U && -+ jmpl == 0x89C14000U && -+ nop == 0x01000000U) -+ { -+ regs->u_regs[UREG_G1] = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G4] = ((sethi1 & 0x003FFFFFU) << 10) | (or1 & 0x000003FFU); -+ regs->u_regs[UREG_G4] <<= 32; -+ regs->u_regs[UREG_G5] = ((sethi2 & 0x003FFFFFU) << 10) | (or2 & 0x000003FFU); -+ regs->u_regs[UREG_G5] += regs->u_regs[UREG_G4]; -+ regs->u_regs[UREG_G4] = addr + 24; -+ addr = regs->u_regs[UREG_G5]; -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 3; -+ } -+ } -+ } while (0); -+ -+#ifdef CONFIG_PAX_DLRESOLVE -+ do { /* PaX: unpatched PLT emulation step 2 */ -+ unsigned int save, call, nop; -+ -+ err = get_user(save, (unsigned int *)(regs->tpc-4)); -+ err |= get_user(call, (unsigned int *)regs->tpc); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+4)); -+ if (err) -+ break; -+ -+ if (save == 0x9DE3BFA8U && -+ (call & 0xC0000000U) == 0x40000000U && -+ nop == 0x01000000U) -+ { -+ unsigned long dl_resolve = regs->tpc + ((((call | 0xFFFFFFFFC0000000UL) ^ 0x20000000UL) + 0x20000000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ dl_resolve &= 0xFFFFFFFFUL; -+ -+ regs->u_regs[UREG_RETPC] = regs->tpc; -+ regs->tpc = dl_resolve; -+ regs->tnpc = dl_resolve+4; -+ return 3; -+ } -+ } while (0); -+#endif -+ -+ do { /* PaX: patched PLT emulation #7, must be AFTER the unpatched PLT emulation */ -+ unsigned int sethi, ba, nop; -+ -+ err = get_user(sethi, (unsigned int *)regs->tpc); -+ err |= get_user(ba, (unsigned int *)(regs->tpc+4)); -+ err |= get_user(nop, (unsigned int *)(regs->tpc+8)); -+ -+ if (err) -+ break; -+ -+ if ((sethi & 0xFFC00000U) == 0x03000000U && -+ (ba & 0xFFF00000U) == 0x30600000U && -+ nop == 0x01000000U) -+ { -+ unsigned long addr; -+ -+ addr = (sethi & 0x003FFFFFU) << 10; -+ regs->u_regs[UREG_G1] = addr; -+ addr = regs->tpc + ((((ba | 0xFFFFFFFFFFF80000UL) ^ 0x00040000UL) + 0x00040000UL) << 2); -+ -+ if (test_thread_flag(TIF_32BIT)) -+ addr &= 0xFFFFFFFFUL; -+ -+ regs->tpc = addr; -+ regs->tnpc = addr+4; -+ return 2; -+ } -+ } while (0); -+ -+#endif -+ -+ return 1; -+} -+ -+void pax_report_insns(void *pc, void *sp) -+{ -+ unsigned long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 8; i++) { -+ unsigned int c; -+ if (get_user(c, (unsigned int *)pc+i)) -+ printk(KERN_CONT "???????? "); -+ else -+ printk(KERN_CONT "%08x ", c); -+ } -+ printk("\n"); -+} -+#endif -+ - asmlinkage void __kprobes do_sparc64_fault(struct pt_regs *regs) - { - struct mm_struct *mm = current->mm; -@@ -340,6 +794,29 @@ asmlinkage void __kprobes do_sparc64_fau - if (!vma) - goto bad_area; - -+#ifdef CONFIG_PAX_PAGEEXEC -+ /* PaX: detect ITLB misses on non-exec pages */ -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && vma->vm_start <= address && -+ !(vma->vm_flags & VM_EXEC) && (fault_code & FAULT_CODE_ITLB)) -+ { -+ if (address != regs->tpc) -+ goto good_area; -+ -+ up_read(&mm->mmap_sem); -+ switch (pax_handle_fetch_fault(regs)) { -+ -+#ifdef CONFIG_PAX_EMUPLT -+ case 2: -+ case 3: -+ return; -+#endif -+ -+ } -+ pax_report_fault(regs, (void *)regs->tpc, (void *)(regs->u_regs[UREG_FP] + STACK_BIAS)); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ - /* Pure DTLB misses do not tell us whether the fault causing - * load/store/atomic was a write or not, it only says that there - * was no match. So in such a case we (carefully) read the -diff -urNp linux-3.0.4/arch/sparc/mm/hugetlbpage.c linux-3.0.4/arch/sparc/mm/hugetlbpage.c ---- linux-3.0.4/arch/sparc/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -68,7 +68,7 @@ full_search: - } - return -ENOMEM; - } -- if (likely(!vma || addr + len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* - * Remember the place where we stopped the search: - */ -@@ -107,7 +107,7 @@ hugetlb_get_unmapped_area_topdown(struct - /* make sure it can fit in the remaining address space */ - if (likely(addr > len)) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr - len, len)) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr-len); - } -@@ -116,16 +116,17 @@ hugetlb_get_unmapped_area_topdown(struct - if (unlikely(mm->mmap_base < len)) - goto bottomup; - -- addr = (mm->mmap_base-len) & HPAGE_MASK; -+ addr = mm->mmap_base - len; - - do { -+ addr &= HPAGE_MASK; - /* - * Lookup failure means no vma is above this address, - * else if new region fits below vma->vm_start, - * return with success: - */ - vma = find_vma(mm, addr); -- if (likely(!vma || addr+len <= vma->vm_start)) { -+ if (likely(check_heap_stack_gap(vma, addr, len))) { - /* remember the address as a hint for next time */ - return (mm->free_area_cache = addr); - } -@@ -135,8 +136,8 @@ hugetlb_get_unmapped_area_topdown(struct - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = (vma->vm_start-len) & HPAGE_MASK; -- } while (likely(len < vma->vm_start)); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -@@ -182,8 +183,7 @@ hugetlb_get_unmapped_area(struct file *f - if (addr) { - addr = ALIGN(addr, HPAGE_SIZE); - vma = find_vma(mm, addr); -- if (task_size - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff -urNp linux-3.0.4/arch/sparc/mm/init_32.c linux-3.0.4/arch/sparc/mm/init_32.c ---- linux-3.0.4/arch/sparc/mm/init_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/init_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -316,6 +316,9 @@ extern void device_scan(void); - pgprot_t PAGE_SHARED __read_mostly; - EXPORT_SYMBOL(PAGE_SHARED); - -+pgprot_t PAGE_SHARED_NOEXEC __read_mostly; -+EXPORT_SYMBOL(PAGE_SHARED_NOEXEC); -+ - void __init paging_init(void) - { - switch(sparc_cpu_model) { -@@ -344,17 +347,17 @@ void __init paging_init(void) - - /* Initialize the protection map with non-constant, MMU dependent values. */ - protection_map[0] = PAGE_NONE; -- protection_map[1] = PAGE_READONLY; -- protection_map[2] = PAGE_COPY; -- protection_map[3] = PAGE_COPY; -+ protection_map[1] = PAGE_READONLY_NOEXEC; -+ protection_map[2] = PAGE_COPY_NOEXEC; -+ protection_map[3] = PAGE_COPY_NOEXEC; - protection_map[4] = PAGE_READONLY; - protection_map[5] = PAGE_READONLY; - protection_map[6] = PAGE_COPY; - protection_map[7] = PAGE_COPY; - protection_map[8] = PAGE_NONE; -- protection_map[9] = PAGE_READONLY; -- protection_map[10] = PAGE_SHARED; -- protection_map[11] = PAGE_SHARED; -+ protection_map[9] = PAGE_READONLY_NOEXEC; -+ protection_map[10] = PAGE_SHARED_NOEXEC; -+ protection_map[11] = PAGE_SHARED_NOEXEC; - protection_map[12] = PAGE_READONLY; - protection_map[13] = PAGE_READONLY; - protection_map[14] = PAGE_SHARED; -diff -urNp linux-3.0.4/arch/sparc/mm/Makefile linux-3.0.4/arch/sparc/mm/Makefile ---- linux-3.0.4/arch/sparc/mm/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -2,7 +2,7 @@ - # - - asflags-y := -ansi --ccflags-y := -Werror -+#ccflags-y := -Werror - - obj-$(CONFIG_SPARC64) += ultra.o tlb.o tsb.o - obj-y += fault_$(BITS).o -diff -urNp linux-3.0.4/arch/sparc/mm/srmmu.c linux-3.0.4/arch/sparc/mm/srmmu.c ---- linux-3.0.4/arch/sparc/mm/srmmu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/sparc/mm/srmmu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2200,6 +2200,13 @@ void __init ld_mmu_srmmu(void) - PAGE_SHARED = pgprot_val(SRMMU_PAGE_SHARED); - BTFIXUPSET_INT(page_copy, pgprot_val(SRMMU_PAGE_COPY)); - BTFIXUPSET_INT(page_readonly, pgprot_val(SRMMU_PAGE_RDONLY)); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ PAGE_SHARED_NOEXEC = pgprot_val(SRMMU_PAGE_SHARED_NOEXEC); -+ BTFIXUPSET_INT(page_copy_noexec, pgprot_val(SRMMU_PAGE_COPY_NOEXEC)); -+ BTFIXUPSET_INT(page_readonly_noexec, pgprot_val(SRMMU_PAGE_RDONLY_NOEXEC)); -+#endif -+ - BTFIXUPSET_INT(page_kernel, pgprot_val(SRMMU_PAGE_KERNEL)); - page_kernel = pgprot_val(SRMMU_PAGE_KERNEL); - -diff -urNp linux-3.0.4/arch/um/include/asm/kmap_types.h linux-3.0.4/arch/um/include/asm/kmap_types.h ---- linux-3.0.4/arch/um/include/asm/kmap_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/include/asm/kmap_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -23,6 +23,7 @@ enum km_type { - KM_IRQ1, - KM_SOFTIRQ0, - KM_SOFTIRQ1, -+ KM_CLEARPAGE, - KM_TYPE_NR - }; - -diff -urNp linux-3.0.4/arch/um/include/asm/page.h linux-3.0.4/arch/um/include/asm/page.h ---- linux-3.0.4/arch/um/include/asm/page.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/include/asm/page.h 2011-08-23 21:47:55.000000000 -0400 -@@ -14,6 +14,9 @@ - #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT) - #define PAGE_MASK (~(PAGE_SIZE-1)) - -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+ - #ifndef __ASSEMBLY__ - - struct page; -diff -urNp linux-3.0.4/arch/um/kernel/process.c linux-3.0.4/arch/um/kernel/process.c ---- linux-3.0.4/arch/um/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/kernel/process.c 2011-08-23 21:47:55.000000000 -0400 -@@ -404,22 +404,6 @@ int singlestepping(void * t) - return 2; - } - --/* -- * Only x86 and x86_64 have an arch_align_stack(). -- * All other arches have "#define arch_align_stack(x) (x)" -- * in their asm/system.h -- * As this is included in UML from asm-um/system-generic.h, -- * we can use it to behave as the subarch does. -- */ --#ifndef arch_align_stack --unsigned long arch_align_stack(unsigned long sp) --{ -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} --#endif -- - unsigned long get_wchan(struct task_struct *p) - { - unsigned long stack_page, sp, ip; -diff -urNp linux-3.0.4/arch/um/sys-i386/syscalls.c linux-3.0.4/arch/um/sys-i386/syscalls.c ---- linux-3.0.4/arch/um/sys-i386/syscalls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/um/sys-i386/syscalls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -11,6 +11,21 @@ - #include "asm/uaccess.h" - #include "asm/unistd.h" - -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) -+{ -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ - /* - * The prototype on i386 is: - * -diff -urNp linux-3.0.4/arch/x86/boot/bitops.h linux-3.0.4/arch/x86/boot/bitops.h ---- linux-3.0.4/arch/x86/boot/bitops.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/bitops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -26,7 +26,7 @@ static inline int variable_test_bit(int - u8 v; - const u32 *p = (const u32 *)addr; - -- asm("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); -+ asm volatile("btl %2,%1; setc %0" : "=qm" (v) : "m" (*p), "Ir" (nr)); - return v; - } - -@@ -37,7 +37,7 @@ static inline int variable_test_bit(int - - static inline void set_bit(int nr, void *addr) - { -- asm("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); -+ asm volatile("btsl %1,%0" : "+m" (*(u32 *)addr) : "Ir" (nr)); - } - - #endif /* BOOT_BITOPS_H */ -diff -urNp linux-3.0.4/arch/x86/boot/boot.h linux-3.0.4/arch/x86/boot/boot.h ---- linux-3.0.4/arch/x86/boot/boot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/boot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -85,7 +85,7 @@ static inline void io_delay(void) - static inline u16 ds(void) - { - u16 seg; -- asm("movw %%ds,%0" : "=rm" (seg)); -+ asm volatile("movw %%ds,%0" : "=rm" (seg)); - return seg; - } - -@@ -181,7 +181,7 @@ static inline void wrgs32(u32 v, addr_t - static inline int memcmp(const void *s1, const void *s2, size_t len) - { - u8 diff; -- asm("repe; cmpsb; setnz %0" -+ asm volatile("repe; cmpsb; setnz %0" - : "=qm" (diff), "+D" (s1), "+S" (s2), "+c" (len)); - return diff; - } -diff -urNp linux-3.0.4/arch/x86/boot/compressed/head_32.S linux-3.0.4/arch/x86/boot/compressed/head_32.S ---- linux-3.0.4/arch/x86/boot/compressed/head_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/head_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -76,7 +76,7 @@ ENTRY(startup_32) - notl %eax - andl %eax, %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Target address to relocate to for decompression */ -@@ -162,7 +162,7 @@ relocated: - * and where it was actually loaded. - */ - movl %ebp, %ebx -- subl $LOAD_PHYSICAL_ADDR, %ebx -+ subl $____LOAD_PHYSICAL_ADDR, %ebx - jz 2f /* Nothing to be done if loaded at compiled addr. */ - /* - * Process relocations. -@@ -170,8 +170,7 @@ relocated: - - 1: subl $4, %edi - movl (%edi), %ecx -- testl %ecx, %ecx -- jz 2f -+ jecxz 2f - addl %ebx, -__PAGE_OFFSET(%ebx, %ecx) - jmp 1b - 2: -diff -urNp linux-3.0.4/arch/x86/boot/compressed/head_64.S linux-3.0.4/arch/x86/boot/compressed/head_64.S ---- linux-3.0.4/arch/x86/boot/compressed/head_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/head_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -91,7 +91,7 @@ ENTRY(startup_32) - notl %eax - andl %eax, %ebx - #else -- movl $LOAD_PHYSICAL_ADDR, %ebx -+ movl $____LOAD_PHYSICAL_ADDR, %ebx - #endif - - /* Target address to relocate to for decompression */ -@@ -233,7 +233,7 @@ ENTRY(startup_64) - notq %rax - andq %rax, %rbp - #else -- movq $LOAD_PHYSICAL_ADDR, %rbp -+ movq $____LOAD_PHYSICAL_ADDR, %rbp - #endif - - /* Target address to relocate to for decompression */ -diff -urNp linux-3.0.4/arch/x86/boot/compressed/Makefile linux-3.0.4/arch/x86/boot/compressed/Makefile ---- linux-3.0.4/arch/x86/boot/compressed/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -14,6 +14,9 @@ cflags-$(CONFIG_X86_64) := -mcmodel=smal - KBUILD_CFLAGS += $(cflags-y) - KBUILD_CFLAGS += $(call cc-option,-ffreestanding) - KBUILD_CFLAGS += $(call cc-option,-fno-stack-protector) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n -diff -urNp linux-3.0.4/arch/x86/boot/compressed/misc.c linux-3.0.4/arch/x86/boot/compressed/misc.c ---- linux-3.0.4/arch/x86/boot/compressed/misc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/misc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -310,7 +310,7 @@ static void parse_elf(void *output) - case PT_LOAD: - #ifdef CONFIG_RELOCATABLE - dest = output; -- dest += (phdr->p_paddr - LOAD_PHYSICAL_ADDR); -+ dest += (phdr->p_paddr - ____LOAD_PHYSICAL_ADDR); - #else - dest = (void *)(phdr->p_paddr); - #endif -@@ -363,7 +363,7 @@ asmlinkage void decompress_kernel(void * - error("Destination address too large"); - #endif - #ifndef CONFIG_RELOCATABLE -- if ((unsigned long)output != LOAD_PHYSICAL_ADDR) -+ if ((unsigned long)output != ____LOAD_PHYSICAL_ADDR) - error("Wrong destination address"); - #endif - -diff -urNp linux-3.0.4/arch/x86/boot/compressed/relocs.c linux-3.0.4/arch/x86/boot/compressed/relocs.c ---- linux-3.0.4/arch/x86/boot/compressed/relocs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/compressed/relocs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -13,8 +13,11 @@ - - static void die(char *fmt, ...); - -+#include "../../../../include/generated/autoconf.h" -+ - #define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) - static Elf32_Ehdr ehdr; -+static Elf32_Phdr *phdr; - static unsigned long reloc_count, reloc_idx; - static unsigned long *relocs; - -@@ -270,9 +273,39 @@ static void read_ehdr(FILE *fp) - } - } - -+static void read_phdrs(FILE *fp) -+{ -+ unsigned int i; -+ -+ phdr = calloc(ehdr.e_phnum, sizeof(Elf32_Phdr)); -+ if (!phdr) { -+ die("Unable to allocate %d program headers\n", -+ ehdr.e_phnum); -+ } -+ if (fseek(fp, ehdr.e_phoff, SEEK_SET) < 0) { -+ die("Seek to %d failed: %s\n", -+ ehdr.e_phoff, strerror(errno)); -+ } -+ if (fread(phdr, sizeof(*phdr), ehdr.e_phnum, fp) != ehdr.e_phnum) { -+ die("Cannot read ELF program headers: %s\n", -+ strerror(errno)); -+ } -+ for(i = 0; i < ehdr.e_phnum; i++) { -+ phdr[i].p_type = elf32_to_cpu(phdr[i].p_type); -+ phdr[i].p_offset = elf32_to_cpu(phdr[i].p_offset); -+ phdr[i].p_vaddr = elf32_to_cpu(phdr[i].p_vaddr); -+ phdr[i].p_paddr = elf32_to_cpu(phdr[i].p_paddr); -+ phdr[i].p_filesz = elf32_to_cpu(phdr[i].p_filesz); -+ phdr[i].p_memsz = elf32_to_cpu(phdr[i].p_memsz); -+ phdr[i].p_flags = elf32_to_cpu(phdr[i].p_flags); -+ phdr[i].p_align = elf32_to_cpu(phdr[i].p_align); -+ } -+ -+} -+ - static void read_shdrs(FILE *fp) - { -- int i; -+ unsigned int i; - Elf32_Shdr shdr; - - secs = calloc(ehdr.e_shnum, sizeof(struct section)); -@@ -307,7 +340,7 @@ static void read_shdrs(FILE *fp) - - static void read_strtabs(FILE *fp) - { -- int i; -+ unsigned int i; - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_STRTAB) { -@@ -332,7 +365,7 @@ static void read_strtabs(FILE *fp) - - static void read_symtabs(FILE *fp) - { -- int i,j; -+ unsigned int i,j; - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_SYMTAB) { -@@ -365,7 +398,9 @@ static void read_symtabs(FILE *fp) - - static void read_relocs(FILE *fp) - { -- int i,j; -+ unsigned int i,j; -+ uint32_t base; -+ - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - if (sec->shdr.sh_type != SHT_REL) { -@@ -385,9 +420,18 @@ static void read_relocs(FILE *fp) - die("Cannot read symbol table: %s\n", - strerror(errno)); - } -+ base = 0; -+ for (j = 0; j < ehdr.e_phnum; j++) { -+ if (phdr[j].p_type != PT_LOAD ) -+ continue; -+ if (secs[sec->shdr.sh_info].shdr.sh_offset < phdr[j].p_offset || secs[sec->shdr.sh_info].shdr.sh_offset >= phdr[j].p_offset + phdr[j].p_filesz) -+ continue; -+ base = CONFIG_PAGE_OFFSET + phdr[j].p_paddr - phdr[j].p_vaddr; -+ break; -+ } - for (j = 0; j < sec->shdr.sh_size/sizeof(Elf32_Rel); j++) { - Elf32_Rel *rel = &sec->reltab[j]; -- rel->r_offset = elf32_to_cpu(rel->r_offset); -+ rel->r_offset = elf32_to_cpu(rel->r_offset) + base; - rel->r_info = elf32_to_cpu(rel->r_info); - } - } -@@ -396,14 +440,14 @@ static void read_relocs(FILE *fp) - - static void print_absolute_symbols(void) - { -- int i; -+ unsigned int i; - printf("Absolute symbols\n"); - printf(" Num: Value Size Type Bind Visibility Name\n"); - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - char *sym_strtab; - Elf32_Sym *sh_symtab; -- int j; -+ unsigned int j; - - if (sec->shdr.sh_type != SHT_SYMTAB) { - continue; -@@ -431,14 +475,14 @@ static void print_absolute_symbols(void) - - static void print_absolute_relocs(void) - { -- int i, printed = 0; -+ unsigned int i, printed = 0; - - for (i = 0; i < ehdr.e_shnum; i++) { - struct section *sec = &secs[i]; - struct section *sec_applies, *sec_symtab; - char *sym_strtab; - Elf32_Sym *sh_symtab; -- int j; -+ unsigned int j; - if (sec->shdr.sh_type != SHT_REL) { - continue; - } -@@ -499,13 +543,13 @@ static void print_absolute_relocs(void) - - static void walk_relocs(void (*visit)(Elf32_Rel *rel, Elf32_Sym *sym)) - { -- int i; -+ unsigned int i; - /* Walk through the relocations */ - for (i = 0; i < ehdr.e_shnum; i++) { - char *sym_strtab; - Elf32_Sym *sh_symtab; - struct section *sec_applies, *sec_symtab; -- int j; -+ unsigned int j; - struct section *sec = &secs[i]; - - if (sec->shdr.sh_type != SHT_REL) { -@@ -530,6 +574,22 @@ static void walk_relocs(void (*visit)(El - !is_rel_reloc(sym_name(sym_strtab, sym))) { - continue; - } -+ /* Don't relocate actual per-cpu variables, they are absolute indices, not addresses */ -+ if (!strcmp(sec_name(sym->st_shndx), ".data..percpu") && strcmp(sym_name(sym_strtab, sym), "__per_cpu_load")) -+ continue; -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_X86_32) -+ /* Don't relocate actual code, they are relocated implicitly by the base address of KERNEL_CS */ -+ if (!strcmp(sec_name(sym->st_shndx), ".module.text") && !strcmp(sym_name(sym_strtab, sym), "_etext")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".init.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".exit.text")) -+ continue; -+ if (!strcmp(sec_name(sym->st_shndx), ".text") && strcmp(sym_name(sym_strtab, sym), "__LOAD_PHYSICAL_ADDR")) -+ continue; -+#endif -+ - switch (r_type) { - case R_386_NONE: - case R_386_PC32: -@@ -571,7 +631,7 @@ static int cmp_relocs(const void *va, co - - static void emit_relocs(int as_text) - { -- int i; -+ unsigned int i; - /* Count how many relocations I have and allocate space for them. */ - reloc_count = 0; - walk_relocs(count_reloc); -@@ -665,6 +725,7 @@ int main(int argc, char **argv) - fname, strerror(errno)); - } - read_ehdr(fp); -+ read_phdrs(fp); - read_shdrs(fp); - read_strtabs(fp); - read_symtabs(fp); -diff -urNp linux-3.0.4/arch/x86/boot/cpucheck.c linux-3.0.4/arch/x86/boot/cpucheck.c ---- linux-3.0.4/arch/x86/boot/cpucheck.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/cpucheck.c 2011-08-23 21:47:55.000000000 -0400 -@@ -74,7 +74,7 @@ static int has_fpu(void) - u16 fcw = -1, fsw = -1; - u32 cr0; - -- asm("movl %%cr0,%0" : "=r" (cr0)); -+ asm volatile("movl %%cr0,%0" : "=r" (cr0)); - if (cr0 & (X86_CR0_EM|X86_CR0_TS)) { - cr0 &= ~(X86_CR0_EM|X86_CR0_TS); - asm volatile("movl %0,%%cr0" : : "r" (cr0)); -@@ -90,7 +90,7 @@ static int has_eflag(u32 mask) - { - u32 f0, f1; - -- asm("pushfl ; " -+ asm volatile("pushfl ; " - "pushfl ; " - "popl %0 ; " - "movl %0,%1 ; " -@@ -115,7 +115,7 @@ static void get_flags(void) - set_bit(X86_FEATURE_FPU, cpu.flags); - - if (has_eflag(X86_EFLAGS_ID)) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_intel_level), - "=b" (cpu_vendor[0]), - "=d" (cpu_vendor[1]), -@@ -124,7 +124,7 @@ static void get_flags(void) - - if (max_intel_level >= 0x00000001 && - max_intel_level <= 0x0000ffff) { -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (tfms), - "=c" (cpu.flags[4]), - "=d" (cpu.flags[0]) -@@ -136,7 +136,7 @@ static void get_flags(void) - cpu.model += ((tfms >> 16) & 0xf) << 4; - } - -- asm("cpuid" -+ asm volatile("cpuid" - : "=a" (max_amd_level) - : "a" (0x80000000) - : "ebx", "ecx", "edx"); -@@ -144,7 +144,7 @@ static void get_flags(void) - if (max_amd_level >= 0x80000001 && - max_amd_level <= 0x8000ffff) { - u32 eax = 0x80000001; -- asm("cpuid" -+ asm volatile("cpuid" - : "+a" (eax), - "=c" (cpu.flags[6]), - "=d" (cpu.flags[1]) -@@ -203,9 +203,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_K7_HWCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax &= ~(1 << 15); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - get_flags(); /* Make sure it really did something */ - err = check_flags(); -@@ -218,9 +218,9 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 ecx = MSR_VIA_FCR; - u32 eax, edx; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); - eax |= (1<<1)|(1<<7); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - set_bit(X86_FEATURE_CX8, cpu.flags); - err = check_flags(); -@@ -231,12 +231,12 @@ int check_cpu(int *cpu_level_ptr, int *r - u32 eax, edx; - u32 level = 1; - -- asm("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -- asm("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -- asm("cpuid" -+ asm volatile("rdmsr" : "=a" (eax), "=d" (edx) : "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (~0), "d" (edx), "c" (ecx)); -+ asm volatile("cpuid" - : "+a" (level), "=d" (cpu.flags[0]) - : : "ecx", "ebx"); -- asm("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); -+ asm volatile("wrmsr" : : "a" (eax), "d" (edx), "c" (ecx)); - - err = check_flags(); - } -diff -urNp linux-3.0.4/arch/x86/boot/header.S linux-3.0.4/arch/x86/boot/header.S ---- linux-3.0.4/arch/x86/boot/header.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/header.S 2011-08-23 21:47:55.000000000 -0400 -@@ -224,7 +224,7 @@ setup_data: .quad 0 # 64-bit physical - # single linked list of - # struct setup_data - --pref_address: .quad LOAD_PHYSICAL_ADDR # preferred load addr -+pref_address: .quad ____LOAD_PHYSICAL_ADDR # preferred load addr - - #define ZO_INIT_SIZE (ZO__end - ZO_startup_32 + ZO_z_extract_offset) - #define VO_INIT_SIZE (VO__end - VO__text) -diff -urNp linux-3.0.4/arch/x86/boot/Makefile linux-3.0.4/arch/x86/boot/Makefile ---- linux-3.0.4/arch/x86/boot/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -69,6 +69,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) - KBUILD_CFLAGS += $(call cc-option, -m32) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n - -diff -urNp linux-3.0.4/arch/x86/boot/memory.c linux-3.0.4/arch/x86/boot/memory.c ---- linux-3.0.4/arch/x86/boot/memory.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/memory.c 2011-08-23 21:47:55.000000000 -0400 -@@ -19,7 +19,7 @@ - - static int detect_memory_e820(void) - { -- int count = 0; -+ unsigned int count = 0; - struct biosregs ireg, oreg; - struct e820entry *desc = boot_params.e820_map; - static struct e820entry buf; /* static so it is zeroed */ -diff -urNp linux-3.0.4/arch/x86/boot/video.c linux-3.0.4/arch/x86/boot/video.c ---- linux-3.0.4/arch/x86/boot/video.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/video.c 2011-08-23 21:47:55.000000000 -0400 -@@ -96,7 +96,7 @@ static void store_mode_params(void) - static unsigned int get_entry(void) - { - char entry_buf[4]; -- int i, len = 0; -+ unsigned int i, len = 0; - int key; - unsigned int v; - -diff -urNp linux-3.0.4/arch/x86/boot/video-vesa.c linux-3.0.4/arch/x86/boot/video-vesa.c ---- linux-3.0.4/arch/x86/boot/video-vesa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/boot/video-vesa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -200,6 +200,7 @@ static void vesa_store_pm_info(void) - - boot_params.screen_info.vesapm_seg = oreg.es; - boot_params.screen_info.vesapm_off = oreg.di; -+ boot_params.screen_info.vesapm_size = oreg.cx; - } - - /* -diff -urNp linux-3.0.4/arch/x86/ia32/ia32_aout.c linux-3.0.4/arch/x86/ia32/ia32_aout.c ---- linux-3.0.4/arch/x86/ia32/ia32_aout.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32_aout.c 2011-08-23 21:48:14.000000000 -0400 -@@ -162,6 +162,8 @@ static int aout_core_dump(long signr, st - unsigned long dump_start, dump_size; - struct user32 dump; - -+ memset(&dump, 0, sizeof(dump)); -+ - fs = get_fs(); - set_fs(KERNEL_DS); - has_dumped = 1; -diff -urNp linux-3.0.4/arch/x86/ia32/ia32entry.S linux-3.0.4/arch/x86/ia32/ia32entry.S ---- linux-3.0.4/arch/x86/ia32/ia32entry.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32entry.S 2011-08-25 17:36:37.000000000 -0400 -@@ -13,6 +13,7 @@ - #include - #include - #include -+#include - #include - - /* Avoid __ASSEMBLER__'ifying just for this. */ -@@ -95,6 +96,29 @@ ENTRY(native_irq_enable_sysexit) - ENDPROC(native_irq_enable_sysexit) - #endif - -+ .macro pax_enter_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_enter_kernel_user -+#endif -+ .endm -+ -+ .macro pax_exit_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_exit_kernel_user -+#endif -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushq %rax -+ call pax_randomize_kstack -+ popq %rax -+#endif -+ .endm -+ -+ .macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+ .endm -+ - /* - * 32bit SYSENTER instruction entry. - * -@@ -121,7 +145,7 @@ ENTRY(ia32_sysenter_target) - CFI_REGISTER rsp,rbp - SWAPGS_UNSAFE_STACK - movq PER_CPU_VAR(kernel_stack), %rsp -- addq $(KERNEL_STACK_OFFSET),%rsp -+ pax_enter_kernel_user - /* - * No need to follow this irqs on/off section: the syscall - * disabled irqs, here we enable it straight after entry: -@@ -134,7 +158,8 @@ ENTRY(ia32_sysenter_target) - CFI_REL_OFFSET rsp,0 - pushfq_cfi - /*CFI_REL_OFFSET rflags,0*/ -- movl 8*3-THREAD_SIZE+TI_sysenter_return(%rsp), %r10d -+ GET_THREAD_INFO(%r10) -+ movl TI_sysenter_return(%r10), %r10d - CFI_REGISTER rip,r10 - pushq_cfi $__USER32_CS - /*CFI_REL_OFFSET cs,0*/ -@@ -146,6 +171,12 @@ ENTRY(ia32_sysenter_target) - SAVE_ARGS 0,0,1 - /* no need to do an access_ok check here because rbp has been - 32bit zero extended */ -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%r10 -+ add %r10,%rbp -+#endif -+ - 1: movl (%rbp),%ebp - .section __ex_table,"a" - .quad 1b,ia32_badarg -@@ -168,6 +199,8 @@ sysenter_dispatch: - testl $_TIF_ALLWORK_MASK,TI_flags(%r10) - jnz sysexit_audit - sysexit_from_sys_call: -+ pax_exit_kernel_user -+ pax_erase_kstack - andl $~TS_COMPAT,TI_status(%r10) - /* clear IF, that popfq doesn't enable interrupts early */ - andl $~0x200,EFLAGS-R11(%rsp) -@@ -194,6 +227,9 @@ sysexit_from_sys_call: - movl %eax,%esi /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_I386,%edi /* 1st arg: audit arch */ - call audit_syscall_entry -+ -+ pax_erase_kstack -+ - movl RAX-ARGOFFSET(%rsp),%eax /* reload syscall number */ - cmpq $(IA32_NR_syscalls-1),%rax - ja ia32_badsys -@@ -246,6 +282,9 @@ sysenter_tracesys: - movq $-ENOSYS,RAX(%rsp)/* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ - RESTORE_REST - cmpq $(IA32_NR_syscalls-1),%rax -@@ -277,19 +316,24 @@ ENDPROC(ia32_sysenter_target) - ENTRY(ia32_cstar_target) - CFI_STARTPROC32 simple - CFI_SIGNAL_FRAME -- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET -+ CFI_DEF_CFA rsp,0 - CFI_REGISTER rip,rcx - /*CFI_REGISTER rflags,r11*/ - SWAPGS_UNSAFE_STACK - movl %esp,%r8d - CFI_REGISTER rsp,r8 - movq PER_CPU_VAR(kernel_stack),%rsp -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_enter_kernel_user -+#endif -+ - /* - * No need to follow this irqs on/off section: the syscall - * disabled irqs and here we enable it straight after entry: - */ - ENABLE_INTERRUPTS(CLBR_NONE) -- SAVE_ARGS 8,1,1 -+ SAVE_ARGS 8*6,1,1 - movl %eax,%eax /* zero extension */ - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) -@@ -305,6 +349,12 @@ ENTRY(ia32_cstar_target) - /* no need to do an access_ok check here because r8 has been - 32bit zero extended */ - /* hardware stack frame is complete now */ -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%r10 -+ add %r10,%r8 -+#endif -+ - 1: movl (%r8),%r9d - .section __ex_table,"a" - .quad 1b,ia32_badarg -@@ -327,6 +377,8 @@ cstar_dispatch: - testl $_TIF_ALLWORK_MASK,TI_flags(%r10) - jnz sysretl_audit - sysretl_from_sys_call: -+ pax_exit_kernel_user -+ pax_erase_kstack - andl $~TS_COMPAT,TI_status(%r10) - RESTORE_ARGS 1,-ARG_SKIP,1,1,1 - movl RIP-ARGOFFSET(%rsp),%ecx -@@ -364,6 +416,9 @@ cstar_tracesys: - movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET, 1 /* reload args from stack in case ptrace changed it */ - RESTORE_REST - xchgl %ebp,%r9d -@@ -409,6 +464,7 @@ ENTRY(ia32_syscall) - CFI_REL_OFFSET rip,RIP-RIP - PARAVIRT_ADJUST_EXCEPTION_FRAME - SWAPGS -+ pax_enter_kernel_user - /* - * No need to follow this irqs on/off section: the syscall - * disabled irqs and here we enable it straight after entry: -@@ -441,6 +497,9 @@ ia32_tracesys: - movq $-ENOSYS,RAX(%rsp) /* ptrace can change this for a bad syscall */ - movq %rsp,%rdi /* &pt_regs -> arg1 */ - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - LOAD_ARGS32 ARGOFFSET /* reload args from stack in case ptrace changed it */ - RESTORE_REST - cmpq $(IA32_NR_syscalls-1),%rax -diff -urNp linux-3.0.4/arch/x86/ia32/ia32_signal.c linux-3.0.4/arch/x86/ia32/ia32_signal.c ---- linux-3.0.4/arch/x86/ia32/ia32_signal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/ia32/ia32_signal.c 2011-08-23 21:47:55.000000000 -0400 -@@ -403,7 +403,7 @@ static void __user *get_sigframe(struct - sp -= frame_size; - /* Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - return (void __user *) sp; - } - -@@ -461,7 +461,7 @@ int ia32_setup_frame(int sig, struct k_s - * These are actually not used anymore, but left because some - * gdb versions depend on them as a marker. - */ -- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); -+ put_user_ex(*((const u64 *)&code), (u64 *)frame->retcode); - } put_user_catch(err); - - if (err) -@@ -503,7 +503,7 @@ int ia32_setup_rt_frame(int sig, struct - 0xb8, - __NR_ia32_rt_sigreturn, - 0x80cd, -- 0, -+ 0 - }; - - frame = get_sigframe(ka, regs, sizeof(*frame), &fpstate); -@@ -533,16 +533,18 @@ int ia32_setup_rt_frame(int sig, struct - - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; -+ else if (current->mm->context.vdso) -+ /* Return stub is in 32bit vsyscall page */ -+ restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); - else -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, -- rt_sigreturn); -+ restorer = &frame->retcode; - put_user_ex(ptr_to_compat(restorer), &frame->pretcode); - - /* - * Not actually used anymore, but left because some gdb - * versions need it. - */ -- put_user_ex(*((u64 *)&code), (u64 *)frame->retcode); -+ put_user_ex(*((const u64 *)&code), (u64 *)frame->retcode); - } put_user_catch(err); - - if (err) -diff -urNp linux-3.0.4/arch/x86/include/asm/alternative.h linux-3.0.4/arch/x86/include/asm/alternative.h ---- linux-3.0.4/arch/x86/include/asm/alternative.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/alternative.h 2011-08-23 21:47:55.000000000 -0400 -@@ -93,7 +93,7 @@ static inline int alternatives_text_rese - ".section .discard,\"aw\",@progbits\n" \ - " .byte 0xff + (664f-663f) - (662b-661b)\n" /* rlen <= slen */ \ - ".previous\n" \ -- ".section .altinstr_replacement, \"ax\"\n" \ -+ ".section .altinstr_replacement, \"a\"\n" \ - "663:\n\t" newinstr "\n664:\n" /* replacement */ \ - ".previous" - -diff -urNp linux-3.0.4/arch/x86/include/asm/apic.h linux-3.0.4/arch/x86/include/asm/apic.h ---- linux-3.0.4/arch/x86/include/asm/apic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/apic.h 2011-08-23 21:48:14.000000000 -0400 -@@ -45,7 +45,7 @@ static inline void generic_apic_probe(vo - - #ifdef CONFIG_X86_LOCAL_APIC - --extern unsigned int apic_verbosity; -+extern int apic_verbosity; - extern int local_apic_timer_c2_ok; - - extern int disable_apic; -diff -urNp linux-3.0.4/arch/x86/include/asm/apm.h linux-3.0.4/arch/x86/include/asm/apm.h ---- linux-3.0.4/arch/x86/include/asm/apm.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/apm.h 2011-08-23 21:47:55.000000000 -0400 -@@ -34,7 +34,7 @@ static inline void apm_bios_call_asm(u32 - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%al\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -@@ -58,7 +58,7 @@ static inline u8 apm_bios_call_simple_as - __asm__ __volatile__(APM_DO_ZERO_SEGS - "pushl %%edi\n\t" - "pushl %%ebp\n\t" -- "lcall *%%cs:apm_bios_entry\n\t" -+ "lcall *%%ss:apm_bios_entry\n\t" - "setc %%bl\n\t" - "popl %%ebp\n\t" - "popl %%edi\n\t" -diff -urNp linux-3.0.4/arch/x86/include/asm/atomic64_32.h linux-3.0.4/arch/x86/include/asm/atomic64_32.h ---- linux-3.0.4/arch/x86/include/asm/atomic64_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic64_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -12,6 +12,14 @@ typedef struct { - u64 __aligned(8) counter; - } atomic64_t; - -+#ifdef CONFIG_PAX_REFCOUNT -+typedef struct { -+ u64 __aligned(8) counter; -+} atomic64_unchecked_t; -+#else -+typedef atomic64_t atomic64_unchecked_t; -+#endif -+ - #define ATOMIC64_INIT(val) { (val) } - - #ifdef CONFIG_X86_CMPXCHG64 -@@ -38,6 +46,21 @@ static inline long long atomic64_cmpxchg - } - - /** -+ * atomic64_cmpxchg_unchecked - cmpxchg atomic64 variable -+ * @p: pointer to type atomic64_unchecked_t -+ * @o: expected value -+ * @n: new value -+ * -+ * Atomically sets @v to @n if it was equal to @o and returns -+ * the old value. -+ */ -+ -+static inline long long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long long o, long long n) -+{ -+ return cmpxchg64(&v->counter, o, n); -+} -+ -+/** - * atomic64_xchg - xchg atomic64 variable - * @v: pointer to type atomic64_t - * @n: value to assign -@@ -77,6 +100,24 @@ static inline void atomic64_set(atomic64 - } - - /** -+ * atomic64_set_unchecked - set atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * @n: value to assign -+ * -+ * Atomically sets the value of @v to @n. -+ */ -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long long i) -+{ -+ unsigned high = (unsigned)(i >> 32); -+ unsigned low = (unsigned)i; -+ asm volatile(ATOMIC64_ALTERNATIVE(set) -+ : "+b" (low), "+c" (high) -+ : "S" (v) -+ : "eax", "edx", "memory" -+ ); -+} -+ -+/** - * atomic64_read - read atomic64 variable - * @v: pointer to type atomic64_t - * -@@ -93,6 +134,22 @@ static inline long long atomic64_read(at - } - - /** -+ * atomic64_read_unchecked - read atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically reads the value of @v and returns it. -+ */ -+static inline long long atomic64_read_unchecked(atomic64_unchecked_t *v) -+{ -+ long long r; -+ asm volatile(ATOMIC64_ALTERNATIVE(read_unchecked) -+ : "=A" (r), "+c" (v) -+ : : "memory" -+ ); -+ return r; -+ } -+ -+/** - * atomic64_add_return - add and return - * @i: integer value to add - * @v: pointer to type atomic64_t -@@ -108,6 +165,22 @@ static inline long long atomic64_add_ret - return i; - } - -+/** -+ * atomic64_add_return_unchecked - add and return -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v and returns @i + *@v -+ */ -+static inline long long atomic64_add_return_unchecked(long long i, atomic64_unchecked_t *v) -+{ -+ asm volatile(ATOMIC64_ALTERNATIVE(add_return_unchecked) -+ : "+A" (i), "+c" (v) -+ : : "memory" -+ ); -+ return i; -+} -+ - /* - * Other variants with different arithmetic operators: - */ -@@ -131,6 +204,17 @@ static inline long long atomic64_inc_ret - return a; - } - -+static inline long long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ long long a; -+ asm volatile(ATOMIC64_ALTERNATIVE(inc_return_unchecked) -+ : "=A" (a) -+ : "S" (v) -+ : "memory", "ecx" -+ ); -+ return a; -+} -+ - static inline long long atomic64_dec_return(atomic64_t *v) - { - long long a; -@@ -159,6 +243,22 @@ static inline long long atomic64_add(lon - } - - /** -+ * atomic64_add_unchecked - add integer to atomic64 variable -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline long long atomic64_add_unchecked(long long i, atomic64_unchecked_t *v) -+{ -+ asm volatile(ATOMIC64_ALTERNATIVE_(add_unchecked, add_return_unchecked) -+ : "+A" (i), "+c" (v) -+ : : "memory" -+ ); -+ return i; -+} -+ -+/** - * atomic64_sub - subtract the atomic64 variable - * @i: integer value to subtract - * @v: pointer to type atomic64_t -diff -urNp linux-3.0.4/arch/x86/include/asm/atomic64_64.h linux-3.0.4/arch/x86/include/asm/atomic64_64.h ---- linux-3.0.4/arch/x86/include/asm/atomic64_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic64_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -18,7 +18,19 @@ - */ - static inline long atomic64_read(const atomic64_t *v) - { -- return (*(volatile long *)&(v)->counter); -+ return (*(volatile const long *)&(v)->counter); -+} -+ -+/** -+ * atomic64_read_unchecked - read atomic64 variable -+ * @v: pointer of type atomic64_unchecked_t -+ * -+ * Atomically reads the value of @v. -+ * Doesn't imply a read memory barrier. -+ */ -+static inline long atomic64_read_unchecked(const atomic64_unchecked_t *v) -+{ -+ return (*(volatile const long *)&(v)->counter); - } - - /** -@@ -34,6 +46,18 @@ static inline void atomic64_set(atomic64 - } - - /** -+ * atomic64_set_unchecked - set atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * @i: required value -+ * -+ * Atomically sets the value of @v to @i. -+ */ -+static inline void atomic64_set_unchecked(atomic64_unchecked_t *v, long i) -+{ -+ v->counter = i; -+} -+ -+/** - * atomic64_add - add integer to atomic64 variable - * @i: integer value to add - * @v: pointer to type atomic64_t -@@ -42,6 +66,28 @@ static inline void atomic64_set(atomic64 - */ - static inline void atomic64_add(long i, atomic64_t *v) - { -+ asm volatile(LOCK_PREFIX "addq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "er" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic64_add_unchecked - add integer to atomic64 variable -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic64_add_unchecked(long i, atomic64_unchecked_t *v) -+{ - asm volatile(LOCK_PREFIX "addq %1,%0" - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); -@@ -56,7 +102,29 @@ static inline void atomic64_add(long i, - */ - static inline void atomic64_sub(long i, atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "subq %1,%0" -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "er" (i), "m" (v->counter)); -+} -+ -+/** -+ * atomic64_sub_unchecked - subtract the atomic64 variable -+ * @i: integer value to subtract -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic64_sub_unchecked(long i, atomic64_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subq %1,%0\n" - : "=m" (v->counter) - : "er" (i), "m" (v->counter)); - } -@@ -74,7 +142,16 @@ static inline int atomic64_sub_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subq %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -88,6 +165,27 @@ static inline int atomic64_sub_and_test( - */ - static inline void atomic64_inc(atomic64_t *v) - { -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "m" (v->counter)); -+} -+ -+/** -+ * atomic64_inc_unchecked - increment atomic64 variable -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic64_inc_unchecked(atomic64_unchecked_t *v) -+{ - asm volatile(LOCK_PREFIX "incq %0" - : "=m" (v->counter) - : "m" (v->counter)); -@@ -101,7 +199,28 @@ static inline void atomic64_inc(atomic64 - */ - static inline void atomic64_dec(atomic64_t *v) - { -- asm volatile(LOCK_PREFIX "decq %0" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=m" (v->counter) -+ : "m" (v->counter)); -+} -+ -+/** -+ * atomic64_dec_unchecked - decrement atomic64 variable -+ * @v: pointer to type atomic64_t -+ * -+ * Atomically decrements @v by 1. -+ */ -+static inline void atomic64_dec_unchecked(atomic64_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "decq %0\n" - : "=m" (v->counter) - : "m" (v->counter)); - } -@@ -118,7 +237,16 @@ static inline int atomic64_dec_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decq %0; sete %1" -+ asm volatile(LOCK_PREFIX "decq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -136,7 +264,16 @@ static inline int atomic64_inc_and_test( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incq %0; sete %1" -+ asm volatile(LOCK_PREFIX "incq %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decq %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "=m" (v->counter), "=qm" (c) - : "m" (v->counter) : "memory"); - return c != 0; -@@ -155,7 +292,16 @@ static inline int atomic64_add_negative( - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addq %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addq %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subq %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "=m" (v->counter), "=qm" (c) - : "er" (i), "m" (v->counter) : "memory"); - return c; -@@ -171,7 +317,31 @@ static inline int atomic64_add_negative( - static inline long atomic64_add_return(long i, atomic64_t *v) - { - long __i = i; -- asm volatile(LOCK_PREFIX "xaddq %0, %1;" -+ asm volatile(LOCK_PREFIX "xaddq %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movq %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+r" (i), "+m" (v->counter) -+ : : "memory"); -+ return i + __i; -+} -+ -+/** -+ * atomic64_add_return_unchecked - add and return -+ * @i: integer value to add -+ * @v: pointer to type atomic64_unchecked_t -+ * -+ * Atomically adds @i to @v and returns @i + @v -+ */ -+static inline long atomic64_add_return_unchecked(long i, atomic64_unchecked_t *v) -+{ -+ long __i = i; -+ asm volatile(LOCK_PREFIX "xaddq %0, %1" - : "+r" (i), "+m" (v->counter) - : : "memory"); - return i + __i; -@@ -183,6 +353,10 @@ static inline long atomic64_sub_return(l - } - - #define atomic64_inc_return(v) (atomic64_add_return(1, (v))) -+static inline long atomic64_inc_return_unchecked(atomic64_unchecked_t *v) -+{ -+ return atomic64_add_return_unchecked(1, v); -+} - #define atomic64_dec_return(v) (atomic64_sub_return(1, (v))) - - static inline long atomic64_cmpxchg(atomic64_t *v, long old, long new) -@@ -190,6 +364,11 @@ static inline long atomic64_cmpxchg(atom - return cmpxchg(&v->counter, old, new); - } - -+static inline long atomic64_cmpxchg_unchecked(atomic64_unchecked_t *v, long old, long new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} -+ - static inline long atomic64_xchg(atomic64_t *v, long new) - { - return xchg(&v->counter, new); -@@ -206,17 +385,30 @@ static inline long atomic64_xchg(atomic6 - */ - static inline int atomic64_add_unless(atomic64_t *v, long a, long u) - { -- long c, old; -+ long c, old, new; - c = atomic64_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic64_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("add %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "sub %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic64_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic64_inc_not_zero(v) atomic64_add_unless((v), 1, 0) -diff -urNp linux-3.0.4/arch/x86/include/asm/atomic.h linux-3.0.4/arch/x86/include/asm/atomic.h ---- linux-3.0.4/arch/x86/include/asm/atomic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/atomic.h 2011-08-23 21:47:55.000000000 -0400 -@@ -22,7 +22,18 @@ - */ - static inline int atomic_read(const atomic_t *v) - { -- return (*(volatile int *)&(v)->counter); -+ return (*(volatile const int *)&(v)->counter); -+} -+ -+/** -+ * atomic_read_unchecked - read atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically reads the value of @v. -+ */ -+static inline int atomic_read_unchecked(const atomic_unchecked_t *v) -+{ -+ return (*(volatile const int *)&(v)->counter); - } - - /** -@@ -38,6 +49,18 @@ static inline void atomic_set(atomic_t * - } - - /** -+ * atomic_set_unchecked - set atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * @i: required value -+ * -+ * Atomically sets the value of @v to @i. -+ */ -+static inline void atomic_set_unchecked(atomic_unchecked_t *v, int i) -+{ -+ v->counter = i; -+} -+ -+/** - * atomic_add - add integer to atomic variable - * @i: integer value to add - * @v: pointer of type atomic_t -@@ -46,7 +69,29 @@ static inline void atomic_set(atomic_t * - */ - static inline void atomic_add(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "addl %1,%0" -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_add_unchecked - add integer to atomic variable -+ * @i: integer value to add -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically adds @i to @v. -+ */ -+static inline void atomic_add_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "addl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -60,7 +105,29 @@ static inline void atomic_add(int i, ato - */ - static inline void atomic_sub(int i, atomic_t *v) - { -- asm volatile(LOCK_PREFIX "subl %1,%0" -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter) -+ : "ir" (i)); -+} -+ -+/** -+ * atomic_sub_unchecked - subtract integer from atomic variable -+ * @i: integer value to subtract -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically subtracts @i from @v. -+ */ -+static inline void atomic_sub_unchecked(int i, atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "subl %1,%0\n" - : "+m" (v->counter) - : "ir" (i)); - } -@@ -78,7 +145,16 @@ static inline int atomic_sub_and_test(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "subl %2,%0; sete %1" -+ asm volatile(LOCK_PREFIX "subl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "addl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -92,7 +168,27 @@ static inline int atomic_sub_and_test(in - */ - static inline void atomic_inc(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "incl %0" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter)); -+} -+ -+/** -+ * atomic_inc_unchecked - increment atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically increments @v by 1. -+ */ -+static inline void atomic_inc_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "incl %0\n" - : "+m" (v->counter)); - } - -@@ -104,7 +200,27 @@ static inline void atomic_inc(atomic_t * - */ - static inline void atomic_dec(atomic_t *v) - { -- asm volatile(LOCK_PREFIX "decl %0" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+m" (v->counter)); -+} -+ -+/** -+ * atomic_dec_unchecked - decrement atomic variable -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically decrements @v by 1. -+ */ -+static inline void atomic_dec_unchecked(atomic_unchecked_t *v) -+{ -+ asm volatile(LOCK_PREFIX "decl %0\n" - : "+m" (v->counter)); - } - -@@ -120,7 +236,16 @@ static inline int atomic_dec_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "decl %0; sete %1" -+ asm volatile(LOCK_PREFIX "decl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "incl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -138,7 +263,35 @@ static inline int atomic_inc_and_test(at - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "incl %0; sete %1" -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" -+ : "+m" (v->counter), "=qm" (c) -+ : : "memory"); -+ return c != 0; -+} -+ -+/** -+ * atomic_inc_and_test_unchecked - increment and test -+ * @v: pointer of type atomic_unchecked_t -+ * -+ * Atomically increments @v by 1 -+ * and returns true if the result is zero, or false for all -+ * other cases. -+ */ -+static inline int atomic_inc_and_test_unchecked(atomic_unchecked_t *v) -+{ -+ unsigned char c; -+ -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ "sete %1\n" - : "+m" (v->counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -157,7 +310,16 @@ static inline int atomic_add_negative(in - { - unsigned char c; - -- asm volatile(LOCK_PREFIX "addl %2,%0; sets %1" -+ asm volatile(LOCK_PREFIX "addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (v->counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -180,6 +342,46 @@ static inline int atomic_add_return(int - #endif - /* Modern 486+ processor */ - __i = i; -+ asm volatile(LOCK_PREFIX "xaddl %0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "movl %0, %1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "+r" (i), "+m" (v->counter) -+ : : "memory"); -+ return i + __i; -+ -+#ifdef CONFIG_M386 -+no_xadd: /* Legacy 386 processor */ -+ local_irq_save(flags); -+ __i = atomic_read(v); -+ atomic_set(v, i + __i); -+ local_irq_restore(flags); -+ return i + __i; -+#endif -+} -+ -+/** -+ * atomic_add_return_unchecked - add integer and return -+ * @v: pointer of type atomic_unchecked_t -+ * @i: integer value to add -+ * -+ * Atomically adds @i to @v and returns @i + @v -+ */ -+static inline int atomic_add_return_unchecked(int i, atomic_unchecked_t *v) -+{ -+ int __i; -+#ifdef CONFIG_M386 -+ unsigned long flags; -+ if (unlikely(boot_cpu_data.x86 <= 3)) -+ goto no_xadd; -+#endif -+ /* Modern 486+ processor */ -+ __i = i; - asm volatile(LOCK_PREFIX "xaddl %0, %1" - : "+r" (i), "+m" (v->counter) - : : "memory"); -@@ -208,6 +410,10 @@ static inline int atomic_sub_return(int - } - - #define atomic_inc_return(v) (atomic_add_return(1, v)) -+static inline int atomic_inc_return_unchecked(atomic_unchecked_t *v) -+{ -+ return atomic_add_return_unchecked(1, v); -+} - #define atomic_dec_return(v) (atomic_sub_return(1, v)) - - static inline int atomic_cmpxchg(atomic_t *v, int old, int new) -@@ -215,11 +421,21 @@ static inline int atomic_cmpxchg(atomic_ - return cmpxchg(&v->counter, old, new); - } - -+static inline int atomic_cmpxchg_unchecked(atomic_unchecked_t *v, int old, int new) -+{ -+ return cmpxchg(&v->counter, old, new); -+} -+ - static inline int atomic_xchg(atomic_t *v, int new) - { - return xchg(&v->counter, new); - } - -+static inline int atomic_xchg_unchecked(atomic_unchecked_t *v, int new) -+{ -+ return xchg(&v->counter, new); -+} -+ - /** - * atomic_add_unless - add unless the number is already a given value - * @v: pointer of type atomic_t -@@ -231,21 +447,77 @@ static inline int atomic_xchg(atomic_t * - */ - static inline int atomic_add_unless(atomic_t *v, int a, int u) - { -- int c, old; -+ int c, old, new; - c = atomic_read(v); - for (;;) { -- if (unlikely(c == (u))) -+ if (unlikely(c == u)) - break; -- old = atomic_cmpxchg((v), c, c + (a)); -+ -+ asm volatile("addl %2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "subl %2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c), "ir" (a)); -+ -+ old = atomic_cmpxchg(v, c, new); - if (likely(old == c)) - break; - c = old; - } -- return c != (u); -+ return c != u; - } - - #define atomic_inc_not_zero(v) atomic_add_unless((v), 1, 0) - -+/** -+ * atomic_inc_not_zero_hint - increment if not null -+ * @v: pointer of type atomic_t -+ * @hint: probable value of the atomic before the increment -+ * -+ * This version of atomic_inc_not_zero() gives a hint of probable -+ * value of the atomic. This helps processor to not read the memory -+ * before doing the atomic read/modify/write cycle, lowering -+ * number of bus transactions on some arches. -+ * -+ * Returns: 0 if increment was not done, 1 otherwise. -+ */ -+#define atomic_inc_not_zero_hint atomic_inc_not_zero_hint -+static inline int atomic_inc_not_zero_hint(atomic_t *v, int hint) -+{ -+ int val, c = hint, new; -+ -+ /* sanity test, should be removed by compiler if hint is a constant */ -+ if (!hint) -+ return atomic_inc_not_zero(v); -+ -+ do { -+ asm volatile("incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ : "=r" (new) -+ : "0" (c)); -+ -+ val = atomic_cmpxchg(v, c, new); -+ if (val == c) -+ return 1; -+ c = val; -+ } while (c); -+ -+ return 0; -+} -+ - /* - * atomic_dec_if_positive - decrement by 1 if old value positive - * @v: pointer of type atomic_t -diff -urNp linux-3.0.4/arch/x86/include/asm/bitops.h linux-3.0.4/arch/x86/include/asm/bitops.h ---- linux-3.0.4/arch/x86/include/asm/bitops.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/bitops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -38,7 +38,7 @@ - * a mask operation on a byte. - */ - #define IS_IMMEDIATE(nr) (__builtin_constant_p(nr)) --#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((void *)(addr) + ((nr)>>3)) -+#define CONST_MASK_ADDR(nr, addr) BITOP_ADDR((volatile void *)(addr) + ((nr)>>3)) - #define CONST_MASK(nr) (1 << ((nr) & 7)) - - /** -diff -urNp linux-3.0.4/arch/x86/include/asm/boot.h linux-3.0.4/arch/x86/include/asm/boot.h ---- linux-3.0.4/arch/x86/include/asm/boot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/boot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -11,10 +11,15 @@ - #include - - /* Physical address where kernel should be loaded. */ --#define LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ -+#define ____LOAD_PHYSICAL_ADDR ((CONFIG_PHYSICAL_START \ - + (CONFIG_PHYSICAL_ALIGN - 1)) \ - & ~(CONFIG_PHYSICAL_ALIGN - 1)) - -+#ifndef __ASSEMBLY__ -+extern unsigned char __LOAD_PHYSICAL_ADDR[]; -+#define LOAD_PHYSICAL_ADDR ((unsigned long)__LOAD_PHYSICAL_ADDR) -+#endif -+ - /* Minimum kernel alignment, as a power of two */ - #ifdef CONFIG_X86_64 - #define MIN_KERNEL_ALIGN_LG2 PMD_SHIFT -diff -urNp linux-3.0.4/arch/x86/include/asm/cacheflush.h linux-3.0.4/arch/x86/include/asm/cacheflush.h ---- linux-3.0.4/arch/x86/include/asm/cacheflush.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cacheflush.h 2011-08-23 21:47:55.000000000 -0400 -@@ -26,7 +26,7 @@ static inline unsigned long get_page_mem - unsigned long pg_flags = pg->flags & _PGMT_MASK; - - if (pg_flags == _PGMT_DEFAULT) -- return -1; -+ return ~0UL; - else if (pg_flags == _PGMT_WC) - return _PAGE_CACHE_WC; - else if (pg_flags == _PGMT_UC_MINUS) -diff -urNp linux-3.0.4/arch/x86/include/asm/cache.h linux-3.0.4/arch/x86/include/asm/cache.h ---- linux-3.0.4/arch/x86/include/asm/cache.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cache.h 2011-08-23 21:47:55.000000000 -0400 -@@ -5,12 +5,13 @@ - - /* L1 cache line size */ - #define L1_CACHE_SHIFT (CONFIG_X86_L1_CACHE_SHIFT) --#define L1_CACHE_BYTES (1 << L1_CACHE_SHIFT) -+#define L1_CACHE_BYTES (_AC(1,UL) << L1_CACHE_SHIFT) - - #define __read_mostly __attribute__((__section__(".data..read_mostly"))) -+#define __read_only __attribute__((__section__(".data..read_only"))) - - #define INTERNODE_CACHE_SHIFT CONFIG_X86_INTERNODE_CACHE_SHIFT --#define INTERNODE_CACHE_BYTES (1 << INTERNODE_CACHE_SHIFT) -+#define INTERNODE_CACHE_BYTES (_AC(1,UL) << INTERNODE_CACHE_SHIFT) - - #ifdef CONFIG_X86_VSMP - #ifdef CONFIG_SMP -diff -urNp linux-3.0.4/arch/x86/include/asm/checksum_32.h linux-3.0.4/arch/x86/include/asm/checksum_32.h ---- linux-3.0.4/arch/x86/include/asm/checksum_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/checksum_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -31,6 +31,14 @@ asmlinkage __wsum csum_partial_copy_gene - int len, __wsum sum, - int *src_err_ptr, int *dst_err_ptr); - -+asmlinkage __wsum csum_partial_copy_generic_to_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ -+asmlinkage __wsum csum_partial_copy_generic_from_user(const void *src, void *dst, -+ int len, __wsum sum, -+ int *src_err_ptr, int *dst_err_ptr); -+ - /* - * Note: when you get a NULL pointer exception here this means someone - * passed in an incorrect kernel address to one of these functions. -@@ -50,7 +58,7 @@ static inline __wsum csum_partial_copy_f - int *err_ptr) - { - might_sleep(); -- return csum_partial_copy_generic((__force void *)src, dst, -+ return csum_partial_copy_generic_from_user((__force void *)src, dst, - len, sum, err_ptr, NULL); - } - -@@ -178,7 +186,7 @@ static inline __wsum csum_and_copy_to_us - { - might_sleep(); - if (access_ok(VERIFY_WRITE, dst, len)) -- return csum_partial_copy_generic(src, (__force void *)dst, -+ return csum_partial_copy_generic_to_user(src, (__force void *)dst, - len, sum, NULL, err_ptr); - - if (len) -diff -urNp linux-3.0.4/arch/x86/include/asm/cpufeature.h linux-3.0.4/arch/x86/include/asm/cpufeature.h ---- linux-3.0.4/arch/x86/include/asm/cpufeature.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/cpufeature.h 2011-08-23 21:47:55.000000000 -0400 -@@ -358,7 +358,7 @@ static __always_inline __pure bool __sta - ".section .discard,\"aw\",@progbits\n" - " .byte 0xff + (4f-3f) - (2b-1b)\n" /* size check */ - ".previous\n" -- ".section .altinstr_replacement,\"ax\"\n" -+ ".section .altinstr_replacement,\"a\"\n" - "3: movb $1,%0\n" - "4:\n" - ".previous\n" -diff -urNp linux-3.0.4/arch/x86/include/asm/desc_defs.h linux-3.0.4/arch/x86/include/asm/desc_defs.h ---- linux-3.0.4/arch/x86/include/asm/desc_defs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/desc_defs.h 2011-08-23 21:47:55.000000000 -0400 -@@ -31,6 +31,12 @@ struct desc_struct { - unsigned base1: 8, type: 4, s: 1, dpl: 2, p: 1; - unsigned limit: 4, avl: 1, l: 1, d: 1, g: 1, base2: 8; - }; -+ struct { -+ u16 offset_low; -+ u16 seg; -+ unsigned reserved: 8, type: 4, s: 1, dpl: 2, p: 1; -+ unsigned offset_high: 16; -+ } gate; - }; - } __attribute__((packed)); - -diff -urNp linux-3.0.4/arch/x86/include/asm/desc.h linux-3.0.4/arch/x86/include/asm/desc.h ---- linux-3.0.4/arch/x86/include/asm/desc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/desc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -4,6 +4,7 @@ - #include - #include - #include -+#include - - #include - -@@ -16,6 +17,7 @@ static inline void fill_ldt(struct desc_ - - desc->type = (info->read_exec_only ^ 1) << 1; - desc->type |= info->contents << 2; -+ desc->type |= info->seg_not_present ^ 1; - - desc->s = 1; - desc->dpl = 0x3; -@@ -34,17 +36,12 @@ static inline void fill_ldt(struct desc_ - } - - extern struct desc_ptr idt_descr; --extern gate_desc idt_table[]; -- --struct gdt_page { -- struct desc_struct gdt[GDT_ENTRIES]; --} __attribute__((aligned(PAGE_SIZE))); -- --DECLARE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page); -+extern gate_desc idt_table[256]; - -+extern struct desc_struct cpu_gdt_table[NR_CPUS][PAGE_SIZE / sizeof(struct desc_struct)]; - static inline struct desc_struct *get_cpu_gdt_table(unsigned int cpu) - { -- return per_cpu(gdt_page, cpu).gdt; -+ return cpu_gdt_table[cpu]; - } - - #ifdef CONFIG_X86_64 -@@ -69,8 +66,14 @@ static inline void pack_gate(gate_desc * - unsigned long base, unsigned dpl, unsigned flags, - unsigned short seg) - { -- gate->a = (seg << 16) | (base & 0xffff); -- gate->b = (base & 0xffff0000) | (((0x80 | type | (dpl << 5)) & 0xff) << 8); -+ gate->gate.offset_low = base; -+ gate->gate.seg = seg; -+ gate->gate.reserved = 0; -+ gate->gate.type = type; -+ gate->gate.s = 0; -+ gate->gate.dpl = dpl; -+ gate->gate.p = 1; -+ gate->gate.offset_high = base >> 16; - } - - #endif -@@ -115,12 +118,16 @@ static inline void paravirt_free_ldt(str - - static inline void native_write_idt_entry(gate_desc *idt, int entry, const gate_desc *gate) - { -+ pax_open_kernel(); - memcpy(&idt[entry], gate, sizeof(*gate)); -+ pax_close_kernel(); - } - - static inline void native_write_ldt_entry(struct desc_struct *ldt, int entry, const void *desc) - { -+ pax_open_kernel(); - memcpy(&ldt[entry], desc, 8); -+ pax_close_kernel(); - } - - static inline void -@@ -134,7 +141,9 @@ native_write_gdt_entry(struct desc_struc - default: size = sizeof(*gdt); break; - } - -+ pax_open_kernel(); - memcpy(&gdt[entry], desc, size); -+ pax_close_kernel(); - } - - static inline void pack_descriptor(struct desc_struct *desc, unsigned long base, -@@ -207,7 +216,9 @@ static inline void native_set_ldt(const - - static inline void native_load_tr_desc(void) - { -+ pax_open_kernel(); - asm volatile("ltr %w0"::"q" (GDT_ENTRY_TSS*8)); -+ pax_close_kernel(); - } - - static inline void native_load_gdt(const struct desc_ptr *dtr) -@@ -244,8 +255,10 @@ static inline void native_load_tls(struc - struct desc_struct *gdt = get_cpu_gdt_table(cpu); - unsigned int i; - -+ pax_open_kernel(); - for (i = 0; i < GDT_ENTRY_TLS_ENTRIES; i++) - gdt[GDT_ENTRY_TLS_MIN + i] = t->tls_array[i]; -+ pax_close_kernel(); - } - - #define _LDT_empty(info) \ -@@ -307,7 +320,7 @@ static inline void set_desc_limit(struct - desc->limit = (limit >> 16) & 0xf; - } - --static inline void _set_gate(int gate, unsigned type, void *addr, -+static inline void _set_gate(int gate, unsigned type, const void *addr, - unsigned dpl, unsigned ist, unsigned seg) - { - gate_desc s; -@@ -326,7 +339,7 @@ static inline void _set_gate(int gate, u - * Pentium F0 0F bugfix can have resulted in the mapped - * IDT being write-protected. - */ --static inline void set_intr_gate(unsigned int n, void *addr) -+static inline void set_intr_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0, 0, __KERNEL_CS); -@@ -356,19 +369,19 @@ static inline void alloc_intr_gate(unsig - /* - * This routine sets up an interrupt gate at directory privilege level 3. - */ --static inline void set_system_intr_gate(unsigned int n, void *addr) -+static inline void set_system_intr_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0x3, 0, __KERNEL_CS); - } - --static inline void set_system_trap_gate(unsigned int n, void *addr) -+static inline void set_system_trap_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_TRAP, addr, 0x3, 0, __KERNEL_CS); - } - --static inline void set_trap_gate(unsigned int n, void *addr) -+static inline void set_trap_gate(unsigned int n, const void *addr) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_TRAP, addr, 0, 0, __KERNEL_CS); -@@ -377,19 +390,31 @@ static inline void set_trap_gate(unsigne - static inline void set_task_gate(unsigned int n, unsigned int gdt_entry) - { - BUG_ON((unsigned)n > 0xFF); -- _set_gate(n, GATE_TASK, (void *)0, 0, 0, (gdt_entry<<3)); -+ _set_gate(n, GATE_TASK, (const void *)0, 0, 0, (gdt_entry<<3)); - } - --static inline void set_intr_gate_ist(int n, void *addr, unsigned ist) -+static inline void set_intr_gate_ist(int n, const void *addr, unsigned ist) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0, ist, __KERNEL_CS); - } - --static inline void set_system_intr_gate_ist(int n, void *addr, unsigned ist) -+static inline void set_system_intr_gate_ist(int n, const void *addr, unsigned ist) - { - BUG_ON((unsigned)n > 0xFF); - _set_gate(n, GATE_INTERRUPT, addr, 0x3, ist, __KERNEL_CS); - } - -+#ifdef CONFIG_X86_32 -+static inline void set_user_cs(unsigned long base, unsigned long limit, int cpu) -+{ -+ struct desc_struct d; -+ -+ if (likely(limit)) -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ pack_descriptor(&d, base, limit, 0xFB, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_DEFAULT_USER_CS, &d, DESCTYPE_S); -+} -+#endif -+ - #endif /* _ASM_X86_DESC_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/e820.h linux-3.0.4/arch/x86/include/asm/e820.h ---- linux-3.0.4/arch/x86/include/asm/e820.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/e820.h 2011-08-23 21:47:55.000000000 -0400 -@@ -69,7 +69,7 @@ struct e820map { - #define ISA_START_ADDRESS 0xa0000 - #define ISA_END_ADDRESS 0x100000 - --#define BIOS_BEGIN 0x000a0000 -+#define BIOS_BEGIN 0x000c0000 - #define BIOS_END 0x00100000 - - #define BIOS_ROM_BASE 0xffe00000 -diff -urNp linux-3.0.4/arch/x86/include/asm/elf.h linux-3.0.4/arch/x86/include/asm/elf.h ---- linux-3.0.4/arch/x86/include/asm/elf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/elf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -237,7 +237,25 @@ extern int force_personality32; - the loader. We need to make sure that it is out of the way of the program - that it will "exec", and that there is sufficient room for the brk. */ - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define ELF_ET_DYN_BASE ((current->mm->pax_flags & MF_PAX_SEGMEXEC) ? SEGMEXEC_TASK_SIZE/3*2 : TASK_SIZE/3*2) -+#else - #define ELF_ET_DYN_BASE (TASK_SIZE / 3 * 2) -+#endif -+ -+#ifdef CONFIG_PAX_ASLR -+#ifdef CONFIG_X86_32 -+#define PAX_ELF_ET_DYN_BASE 0x10000000UL -+ -+#define PAX_DELTA_MMAP_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#define PAX_DELTA_STACK_LEN (current->mm->pax_flags & MF_PAX_SEGMEXEC ? 15 : 16) -+#else -+#define PAX_ELF_ET_DYN_BASE 0x400000UL -+ -+#define PAX_DELTA_MMAP_LEN ((test_thread_flag(TIF_IA32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) -+#define PAX_DELTA_STACK_LEN ((test_thread_flag(TIF_IA32)) ? 16 : TASK_SIZE_MAX_SHIFT - PAGE_SHIFT - 3) -+#endif -+#endif - - /* This yields a mask that user programs can use to figure out what - instruction set this CPU supports. This could be done in user space, -@@ -290,9 +308,7 @@ do { \ - - #define ARCH_DLINFO \ - do { \ -- if (vdso_enabled) \ -- NEW_AUX_ENT(AT_SYSINFO_EHDR, \ -- (unsigned long)current->mm->context.vdso); \ -+ NEW_AUX_ENT(AT_SYSINFO_EHDR, current->mm->context.vdso); \ - } while (0) - - #define AT_SYSINFO 32 -@@ -303,7 +319,7 @@ do { \ - - #endif /* !CONFIG_X86_32 */ - --#define VDSO_CURRENT_BASE ((unsigned long)current->mm->context.vdso) -+#define VDSO_CURRENT_BASE (current->mm->context.vdso) - - #define VDSO_ENTRY \ - ((unsigned long)VDSO32_SYMBOL(VDSO_CURRENT_BASE, vsyscall)) -@@ -317,7 +333,4 @@ extern int arch_setup_additional_pages(s - extern int syscall32_setup_pages(struct linux_binprm *, int exstack); - #define compat_arch_setup_additional_pages syscall32_setup_pages - --extern unsigned long arch_randomize_brk(struct mm_struct *mm); --#define arch_randomize_brk arch_randomize_brk -- - #endif /* _ASM_X86_ELF_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/emergency-restart.h linux-3.0.4/arch/x86/include/asm/emergency-restart.h ---- linux-3.0.4/arch/x86/include/asm/emergency-restart.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/emergency-restart.h 2011-08-23 21:47:55.000000000 -0400 -@@ -15,6 +15,6 @@ enum reboot_type { - - extern enum reboot_type reboot_type; - --extern void machine_emergency_restart(void); -+extern void machine_emergency_restart(void) __noreturn; - - #endif /* _ASM_X86_EMERGENCY_RESTART_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/futex.h linux-3.0.4/arch/x86/include/asm/futex.h ---- linux-3.0.4/arch/x86/include/asm/futex.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/futex.h 2011-08-23 21:47:55.000000000 -0400 -@@ -12,16 +12,18 @@ - #include - - #define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 *, uaddr); \ - asm volatile("1:\t" insn "\n" \ - "2:\t.section .fixup,\"ax\"\n" \ - "3:\tmov\t%3, %1\n" \ - "\tjmp\t2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE(1b, 3b) \ -- : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ -+ : "=r" (oldval), "=r" (ret), "+m" (*(u32 *)____m(uaddr))\ - : "i" (-EFAULT), "0" (oparg), "1" (0)) - - #define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ -+ typecheck(u32 *, uaddr); \ - asm volatile("1:\tmovl %2, %0\n" \ - "\tmovl\t%0, %3\n" \ - "\t" insn "\n" \ -@@ -34,7 +36,7 @@ - _ASM_EXTABLE(1b, 4b) \ - _ASM_EXTABLE(2b, 4b) \ - : "=&a" (oldval), "=&r" (ret), \ -- "+m" (*uaddr), "=&r" (tem) \ -+ "+m" (*(u32 *)____m(uaddr)), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) - - static inline int futex_atomic_op_inuser(int encoded_op, u32 __user *uaddr) -@@ -61,10 +63,10 @@ static inline int futex_atomic_op_inuser - - switch (op) { - case FUTEX_OP_SET: -- __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); -+ __futex_atomic_op1(__copyuser_seg"xchgl %0, %2", ret, oldval, uaddr, oparg); - break; - case FUTEX_OP_ADD: -- __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, -+ __futex_atomic_op1(LOCK_PREFIX __copyuser_seg"xaddl %0, %2", ret, oldval, - uaddr, oparg); - break; - case FUTEX_OP_OR: -@@ -123,13 +125,13 @@ static inline int futex_atomic_cmpxchg_i - if (!access_ok(VERIFY_WRITE, uaddr, sizeof(u32))) - return -EFAULT; - -- asm volatile("1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" -+ asm volatile("1:\t" LOCK_PREFIX __copyuser_seg"cmpxchgl %4, %2\n" - "2:\t.section .fixup, \"ax\"\n" - "3:\tmov %3, %0\n" - "\tjmp 2b\n" - "\t.previous\n" - _ASM_EXTABLE(1b, 3b) -- : "+r" (ret), "=a" (oldval), "+m" (*uaddr) -+ : "+r" (ret), "=a" (oldval), "+m" (*(u32 *)____m(uaddr)) - : "i" (-EFAULT), "r" (newval), "1" (oldval) - : "memory" - ); -diff -urNp linux-3.0.4/arch/x86/include/asm/hw_irq.h linux-3.0.4/arch/x86/include/asm/hw_irq.h ---- linux-3.0.4/arch/x86/include/asm/hw_irq.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/hw_irq.h 2011-08-23 21:47:55.000000000 -0400 -@@ -137,8 +137,8 @@ extern void setup_ioapic_dest(void); - extern void enable_IO_APIC(void); - - /* Statistics */ --extern atomic_t irq_err_count; --extern atomic_t irq_mis_count; -+extern atomic_unchecked_t irq_err_count; -+extern atomic_unchecked_t irq_mis_count; - - /* EISA */ - extern void eisa_set_level_irq(unsigned int irq); -diff -urNp linux-3.0.4/arch/x86/include/asm/i387.h linux-3.0.4/arch/x86/include/asm/i387.h ---- linux-3.0.4/arch/x86/include/asm/i387.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/i387.h 2011-08-23 21:47:55.000000000 -0400 -@@ -92,6 +92,11 @@ static inline int fxrstor_checking(struc - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) -+ fx = (struct i387_fxsave_struct *)((void *)fx + PAX_USER_SHADOW_BASE); -+#endif -+ - /* See comment in fxsave() below. */ - #ifdef CONFIG_AS_FXSAVEQ - asm volatile("1: fxrstorq %[fx]\n\t" -@@ -121,6 +126,11 @@ static inline int fxsave_user(struct i38 - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)fx < PAX_USER_SHADOW_BASE) -+ fx = (struct i387_fxsave_struct __user *)((void __user *)fx + PAX_USER_SHADOW_BASE); -+#endif -+ - /* - * Clear the bytes not touched by the fxsave and reserved - * for the SW usage. -@@ -213,13 +223,8 @@ static inline void fpu_fxsave(struct fpu - #endif /* CONFIG_X86_64 */ - - /* We need a safe address that is cheap to find and that is already -- in L1 during context switch. The best choices are unfortunately -- different for UP and SMP */ --#ifdef CONFIG_SMP --#define safe_address (__per_cpu_offset[0]) --#else --#define safe_address (kstat_cpu(0).cpustat.user) --#endif -+ in L1 during context switch. */ -+#define safe_address (init_tss[smp_processor_id()].x86_tss.sp0) - - /* - * These must be called with preempt disabled -@@ -312,7 +317,7 @@ static inline void kernel_fpu_begin(void - struct thread_info *me = current_thread_info(); - preempt_disable(); - if (me->status & TS_USEDFPU) -- __save_init_fpu(me->task); -+ __save_init_fpu(current); - else - clts(); - } -diff -urNp linux-3.0.4/arch/x86/include/asm/io.h linux-3.0.4/arch/x86/include/asm/io.h ---- linux-3.0.4/arch/x86/include/asm/io.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/io.h 2011-08-23 21:47:55.000000000 -0400 -@@ -196,6 +196,17 @@ extern void set_iounmap_nonlazy(void); - - #include - -+#define ARCH_HAS_VALID_PHYS_ADDR_RANGE -+static inline int valid_phys_addr_range(unsigned long addr, size_t count) -+{ -+ return ((addr + count + PAGE_SIZE - 1) >> PAGE_SHIFT) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ -+static inline int valid_mmap_phys_addr_range(unsigned long pfn, size_t count) -+{ -+ return (pfn + (count >> PAGE_SHIFT)) < (1ULL << (boot_cpu_data.x86_phys_bits - PAGE_SHIFT)) ? 1 : 0; -+} -+ - /* - * Convert a virtual cached pointer to an uncached pointer - */ -diff -urNp linux-3.0.4/arch/x86/include/asm/irqflags.h linux-3.0.4/arch/x86/include/asm/irqflags.h ---- linux-3.0.4/arch/x86/include/asm/irqflags.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/irqflags.h 2011-08-23 21:47:55.000000000 -0400 -@@ -140,6 +140,11 @@ static inline unsigned long arch_local_i - sti; \ - sysexit - -+#define GET_CR0_INTO_RDI mov %cr0, %rdi -+#define SET_RDI_INTO_CR0 mov %rdi, %cr0 -+#define GET_CR3_INTO_RDI mov %cr3, %rdi -+#define SET_RDI_INTO_CR3 mov %rdi, %cr3 -+ - #else - #define INTERRUPT_RETURN iret - #define ENABLE_INTERRUPTS_SYSEXIT sti; sysexit -diff -urNp linux-3.0.4/arch/x86/include/asm/kprobes.h linux-3.0.4/arch/x86/include/asm/kprobes.h ---- linux-3.0.4/arch/x86/include/asm/kprobes.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/kprobes.h 2011-08-23 21:47:55.000000000 -0400 -@@ -37,13 +37,8 @@ typedef u8 kprobe_opcode_t; - #define RELATIVEJUMP_SIZE 5 - #define RELATIVECALL_OPCODE 0xe8 - #define RELATIVE_ADDR_SIZE 4 --#define MAX_STACK_SIZE 64 --#define MIN_STACK_SIZE(ADDR) \ -- (((MAX_STACK_SIZE) < (((unsigned long)current_thread_info()) + \ -- THREAD_SIZE - (unsigned long)(ADDR))) \ -- ? (MAX_STACK_SIZE) \ -- : (((unsigned long)current_thread_info()) + \ -- THREAD_SIZE - (unsigned long)(ADDR))) -+#define MAX_STACK_SIZE 64UL -+#define MIN_STACK_SIZE(ADDR) min(MAX_STACK_SIZE, current->thread.sp0 - (unsigned long)(ADDR)) - - #define flush_insn_slot(p) do { } while (0) - -diff -urNp linux-3.0.4/arch/x86/include/asm/kvm_host.h linux-3.0.4/arch/x86/include/asm/kvm_host.h ---- linux-3.0.4/arch/x86/include/asm/kvm_host.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/kvm_host.h 2011-08-26 19:49:56.000000000 -0400 -@@ -441,7 +441,7 @@ struct kvm_arch { - unsigned int n_used_mmu_pages; - unsigned int n_requested_mmu_pages; - unsigned int n_max_mmu_pages; -- atomic_t invlpg_counter; -+ atomic_unchecked_t invlpg_counter; - struct hlist_head mmu_page_hash[KVM_NUM_MMU_PAGES]; - /* - * Hash table of struct kvm_mmu_page. -@@ -619,7 +619,7 @@ struct kvm_x86_ops { - enum x86_intercept_stage stage); - - const struct trace_print_flags *exit_reasons_str; --}; -+} __do_const; - - struct kvm_arch_async_pf { - u32 token; -diff -urNp linux-3.0.4/arch/x86/include/asm/local.h linux-3.0.4/arch/x86/include/asm/local.h ---- linux-3.0.4/arch/x86/include/asm/local.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/local.h 2011-08-23 21:47:55.000000000 -0400 -@@ -18,26 +18,58 @@ typedef struct { - - static inline void local_inc(local_t *l) - { -- asm volatile(_ASM_INC "%0" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_DEC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_dec(local_t *l) - { -- asm volatile(_ASM_DEC "%0" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_INC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter)); - } - - static inline void local_add(long i, local_t *l) - { -- asm volatile(_ASM_ADD "%1,%0" -+ asm volatile(_ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_SUB "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } - - static inline void local_sub(long i, local_t *l) - { -- asm volatile(_ASM_SUB "%1,%0" -+ asm volatile(_ASM_SUB "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_ADD "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (l->a.counter) - : "ir" (i)); - } -@@ -55,7 +87,16 @@ static inline int local_sub_and_test(lon - { - unsigned char c; - -- asm volatile(_ASM_SUB "%2,%0; sete %1" -+ asm volatile(_ASM_SUB "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_ADD "%2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -73,7 +114,16 @@ static inline int local_dec_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_DEC "%0; sete %1" -+ asm volatile(_ASM_DEC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_INC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -91,7 +141,16 @@ static inline int local_inc_and_test(loc - { - unsigned char c; - -- asm volatile(_ASM_INC "%0; sete %1" -+ asm volatile(_ASM_INC "%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_DEC "%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sete %1\n" - : "+m" (l->a.counter), "=qm" (c) - : : "memory"); - return c != 0; -@@ -110,7 +169,16 @@ static inline int local_add_negative(lon - { - unsigned char c; - -- asm volatile(_ASM_ADD "%2,%0; sets %1" -+ asm volatile(_ASM_ADD "%2,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_SUB "%2,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ "sets %1\n" - : "+m" (l->a.counter), "=qm" (c) - : "ir" (i) : "memory"); - return c; -@@ -133,7 +201,15 @@ static inline long local_add_return(long - #endif - /* Modern 486+ processor */ - __i = i; -- asm volatile(_ASM_XADD "%0, %1;" -+ asm volatile(_ASM_XADD "%0, %1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ _ASM_MOV "%0,%1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (i), "+m" (l->a.counter) - : : "memory"); - return i + __i; -diff -urNp linux-3.0.4/arch/x86/include/asm/mman.h linux-3.0.4/arch/x86/include/asm/mman.h ---- linux-3.0.4/arch/x86/include/asm/mman.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mman.h 2011-08-23 21:47:55.000000000 -0400 -@@ -5,4 +5,14 @@ - - #include - -+#ifdef __KERNEL__ -+#ifndef __ASSEMBLY__ -+#ifdef CONFIG_X86_32 -+#define arch_mmap_check i386_mmap_check -+int i386_mmap_check(unsigned long addr, unsigned long len, -+ unsigned long flags); -+#endif -+#endif -+#endif -+ - #endif /* _ASM_X86_MMAN_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/mmu_context.h linux-3.0.4/arch/x86/include/asm/mmu_context.h ---- linux-3.0.4/arch/x86/include/asm/mmu_context.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mmu_context.h 2011-08-23 21:48:14.000000000 -0400 -@@ -24,6 +24,18 @@ void destroy_context(struct mm_struct *m - - static inline void enter_lazy_tlb(struct mm_struct *mm, struct task_struct *tsk) - { -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ unsigned int i; -+ pgd_t *pgd; -+ -+ pax_open_kernel(); -+ pgd = get_cpu_pgd(smp_processor_id()); -+ for (i = USER_PGD_PTRS; i < 2 * USER_PGD_PTRS; ++i) -+ set_pgd_batched(pgd+i, native_make_pgd(0)); -+ pax_close_kernel(); -+#endif -+ - #ifdef CONFIG_SMP - if (percpu_read(cpu_tlbstate.state) == TLBSTATE_OK) - percpu_write(cpu_tlbstate.state, TLBSTATE_LAZY); -@@ -34,16 +46,30 @@ static inline void switch_mm(struct mm_s - struct task_struct *tsk) - { - unsigned cpu = smp_processor_id(); -+#if defined(CONFIG_X86_32) && defined(CONFIG_SMP) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ int tlbstate = TLBSTATE_OK; -+#endif - - if (likely(prev != next)) { - #ifdef CONFIG_SMP -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ tlbstate = percpu_read(cpu_tlbstate.state); -+#endif - percpu_write(cpu_tlbstate.state, TLBSTATE_OK); - percpu_write(cpu_tlbstate.active_mm, next); - #endif - cpumask_set_cpu(cpu, mm_cpumask(next)); - - /* Re-load page tables */ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pax_open_kernel(); -+ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd, USER_PGD_PTRS); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); -+ pax_close_kernel(); -+ load_cr3(get_cpu_pgd(cpu)); -+#else - load_cr3(next->pgd); -+#endif - - /* stop flush ipis for the previous mm */ - cpumask_clear_cpu(cpu, mm_cpumask(prev)); -@@ -53,9 +79,38 @@ static inline void switch_mm(struct mm_s - */ - if (unlikely(prev->context.ldt != next->context.ldt)) - load_LDT_nolock(&next->context); -- } -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ if (!(__supported_pte_mask & _PAGE_NX)) { -+ smp_mb__before_clear_bit(); -+ cpu_clear(cpu, prev->context.cpu_user_cs_mask); -+ smp_mb__after_clear_bit(); -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+ } -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+ if (unlikely(prev->context.user_cs_base != next->context.user_cs_base || -+ prev->context.user_cs_limit != next->context.user_cs_limit)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); - #ifdef CONFIG_SMP -+ else if (unlikely(tlbstate != TLBSTATE_OK)) -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+#endif -+ -+ } - else { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pax_open_kernel(); -+ __clone_user_pgds(get_cpu_pgd(cpu), next->pgd, USER_PGD_PTRS); -+ __shadow_user_pgds(get_cpu_pgd(cpu) + USER_PGD_PTRS, next->pgd, USER_PGD_PTRS); -+ pax_close_kernel(); -+ load_cr3(get_cpu_pgd(cpu)); -+#endif -+ -+#ifdef CONFIG_SMP - percpu_write(cpu_tlbstate.state, TLBSTATE_OK); - BUG_ON(percpu_read(cpu_tlbstate.active_mm) != next); - -@@ -64,11 +119,28 @@ static inline void switch_mm(struct mm_s - * tlb flush IPI delivery. We must reload CR3 - * to make sure to use no freed page tables. - */ -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - load_cr3(next->pgd); -+#endif -+ - load_LDT_nolock(&next->context); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!(__supported_pte_mask & _PAGE_NX)) -+ cpu_set(cpu, next->context.cpu_user_cs_mask); -+#endif -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC)) -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!((next->pax_flags & MF_PAX_PAGEEXEC) && (__supported_pte_mask & _PAGE_NX))) -+#endif -+ set_user_cs(next->context.user_cs_base, next->context.user_cs_limit, cpu); -+#endif -+ - } -- } - #endif -+ } - } - - #define activate_mm(prev, next) \ -diff -urNp linux-3.0.4/arch/x86/include/asm/mmu.h linux-3.0.4/arch/x86/include/asm/mmu.h ---- linux-3.0.4/arch/x86/include/asm/mmu.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/mmu.h 2011-08-23 21:47:55.000000000 -0400 -@@ -9,7 +9,7 @@ - * we put the segment information here. - */ - typedef struct { -- void *ldt; -+ struct desc_struct *ldt; - int size; - - #ifdef CONFIG_X86_64 -@@ -18,7 +18,19 @@ typedef struct { - #endif - - struct mutex lock; -- void *vdso; -+ unsigned long vdso; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ unsigned long user_cs_base; -+ unsigned long user_cs_limit; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpumask_t cpu_user_cs_mask; -+#endif -+ -+#endif -+#endif - } mm_context_t; - - #ifdef CONFIG_SMP -diff -urNp linux-3.0.4/arch/x86/include/asm/module.h linux-3.0.4/arch/x86/include/asm/module.h ---- linux-3.0.4/arch/x86/include/asm/module.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/module.h 2011-08-23 21:48:14.000000000 -0400 -@@ -5,6 +5,7 @@ - - #ifdef CONFIG_X86_64 - /* X86_64 does not define MODULE_PROC_FAMILY */ -+#define MODULE_PROC_FAMILY "" - #elif defined CONFIG_M386 - #define MODULE_PROC_FAMILY "386 " - #elif defined CONFIG_M486 -@@ -59,8 +60,30 @@ - #error unknown processor family - #endif - --#ifdef CONFIG_X86_32 --# define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+#define MODULE_PAX_UDEREF "UDEREF " -+#else -+#define MODULE_PAX_UDEREF "" -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#define MODULE_PAX_KERNEXEC "KERNEXEC " -+#else -+#define MODULE_PAX_KERNEXEC "" - #endif - -+#ifdef CONFIG_PAX_REFCOUNT -+#define MODULE_PAX_REFCOUNT "REFCOUNT " -+#else -+#define MODULE_PAX_REFCOUNT "" -+#endif -+ -+#ifdef CONFIG_GRKERNSEC -+#define MODULE_GRSEC "GRSECURITY " -+#else -+#define MODULE_GRSEC "" -+#endif -+ -+#define MODULE_ARCH_VERMAGIC MODULE_PROC_FAMILY MODULE_GRSEC MODULE_PAX_KERNEXEC MODULE_PAX_UDEREF MODULE_PAX_REFCOUNT -+ - #endif /* _ASM_X86_MODULE_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/page_64_types.h linux-3.0.4/arch/x86/include/asm/page_64_types.h ---- linux-3.0.4/arch/x86/include/asm/page_64_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/page_64_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -56,7 +56,7 @@ void copy_page(void *to, void *from); - - /* duplicated to the one in bootmem.h */ - extern unsigned long max_pfn; --extern unsigned long phys_base; -+extern const unsigned long phys_base; - - extern unsigned long __phys_addr(unsigned long); - #define __phys_reloc_hide(x) (x) -diff -urNp linux-3.0.4/arch/x86/include/asm/paravirt.h linux-3.0.4/arch/x86/include/asm/paravirt.h ---- linux-3.0.4/arch/x86/include/asm/paravirt.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/paravirt.h 2011-08-23 21:47:55.000000000 -0400 -@@ -658,6 +658,18 @@ static inline void set_pgd(pgd_t *pgdp, - val); - } - -+static inline void set_pgd_batched(pgd_t *pgdp, pgd_t pgd) -+{ -+ pgdval_t val = native_pgd_val(pgd); -+ -+ if (sizeof(pgdval_t) > sizeof(long)) -+ PVOP_VCALL3(pv_mmu_ops.set_pgd_batched, pgdp, -+ val, (u64)val >> 32); -+ else -+ PVOP_VCALL2(pv_mmu_ops.set_pgd_batched, pgdp, -+ val); -+} -+ - static inline void pgd_clear(pgd_t *pgdp) - { - set_pgd(pgdp, __pgd(0)); -@@ -739,6 +751,21 @@ static inline void __set_fixmap(unsigned - pv_mmu_ops.set_fixmap(idx, phys, flags); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+static inline unsigned long pax_open_kernel(void) -+{ -+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_open_kernel); -+} -+ -+static inline unsigned long pax_close_kernel(void) -+{ -+ return PVOP_CALL0(unsigned long, pv_mmu_ops.pax_close_kernel); -+} -+#else -+static inline unsigned long pax_open_kernel(void) { return 0; } -+static inline unsigned long pax_close_kernel(void) { return 0; } -+#endif -+ - #if defined(CONFIG_SMP) && defined(CONFIG_PARAVIRT_SPINLOCKS) - - static inline int arch_spin_is_locked(struct arch_spinlock *lock) -@@ -955,7 +982,7 @@ extern void default_banner(void); - - #define PARA_PATCH(struct, off) ((PARAVIRT_PATCH_##struct + (off)) / 4) - #define PARA_SITE(ptype, clobbers, ops) _PVSITE(ptype, clobbers, ops, .long, 4) --#define PARA_INDIRECT(addr) *%cs:addr -+#define PARA_INDIRECT(addr) *%ss:addr - #endif - - #define INTERRUPT_RETURN \ -@@ -1032,6 +1059,21 @@ extern void default_banner(void); - PARA_SITE(PARA_PATCH(pv_cpu_ops, PV_CPU_irq_enable_sysexit), \ - CLBR_NONE, \ - jmp PARA_INDIRECT(pv_cpu_ops+PV_CPU_irq_enable_sysexit)) -+ -+#define GET_CR0_INTO_RDI \ -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); \ -+ mov %rax,%rdi -+ -+#define SET_RDI_INTO_CR0 \ -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) -+ -+#define GET_CR3_INTO_RDI \ -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_read_cr3); \ -+ mov %rax,%rdi -+ -+#define SET_RDI_INTO_CR3 \ -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_write_cr3) -+ - #endif /* CONFIG_X86_32 */ - - #endif /* __ASSEMBLY__ */ -diff -urNp linux-3.0.4/arch/x86/include/asm/paravirt_types.h linux-3.0.4/arch/x86/include/asm/paravirt_types.h ---- linux-3.0.4/arch/x86/include/asm/paravirt_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/paravirt_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -78,19 +78,19 @@ struct pv_init_ops { - */ - unsigned (*patch)(u8 type, u16 clobber, void *insnbuf, - unsigned long addr, unsigned len); --}; -+} __no_const; - - - struct pv_lazy_ops { - /* Set deferred update mode, used for batching operations. */ - void (*enter)(void); - void (*leave)(void); --}; -+} __no_const; - - struct pv_time_ops { - unsigned long long (*sched_clock)(void); - unsigned long (*get_tsc_khz)(void); --}; -+} __no_const; - - struct pv_cpu_ops { - /* hooks for various privileged instructions */ -@@ -186,7 +186,7 @@ struct pv_cpu_ops { - - void (*start_context_switch)(struct task_struct *prev); - void (*end_context_switch)(struct task_struct *next); --}; -+} __no_const; - - struct pv_irq_ops { - /* -@@ -217,7 +217,7 @@ struct pv_apic_ops { - unsigned long start_eip, - unsigned long start_esp); - #endif --}; -+} __no_const; - - struct pv_mmu_ops { - unsigned long (*read_cr2)(void); -@@ -306,6 +306,7 @@ struct pv_mmu_ops { - struct paravirt_callee_save make_pud; - - void (*set_pgd)(pgd_t *pudp, pgd_t pgdval); -+ void (*set_pgd_batched)(pgd_t *pudp, pgd_t pgdval); - #endif /* PAGETABLE_LEVELS == 4 */ - #endif /* PAGETABLE_LEVELS >= 3 */ - -@@ -317,6 +318,12 @@ struct pv_mmu_ops { - an mfn. We can tell which is which from the index. */ - void (*set_fixmap)(unsigned /* enum fixed_addresses */ idx, - phys_addr_t phys, pgprot_t flags); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ unsigned long (*pax_open_kernel)(void); -+ unsigned long (*pax_close_kernel)(void); -+#endif -+ - }; - - struct arch_spinlock; -@@ -327,7 +334,7 @@ struct pv_lock_ops { - void (*spin_lock_flags)(struct arch_spinlock *lock, unsigned long flags); - int (*spin_trylock)(struct arch_spinlock *lock); - void (*spin_unlock)(struct arch_spinlock *lock); --}; -+} __no_const; - - /* This contains all the paravirt structures: we get a convenient - * number for each function using the offset which we use to indicate -diff -urNp linux-3.0.4/arch/x86/include/asm/pgalloc.h linux-3.0.4/arch/x86/include/asm/pgalloc.h ---- linux-3.0.4/arch/x86/include/asm/pgalloc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgalloc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -63,6 +63,13 @@ static inline void pmd_populate_kernel(s - pmd_t *pmd, pte_t *pte) - { - paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); -+ set_pmd(pmd, __pmd(__pa(pte) | _KERNPG_TABLE)); -+} -+ -+static inline void pmd_populate_user(struct mm_struct *mm, -+ pmd_t *pmd, pte_t *pte) -+{ -+ paravirt_alloc_pte(mm, __pa(pte) >> PAGE_SHIFT); - set_pmd(pmd, __pmd(__pa(pte) | _PAGE_TABLE)); - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable-2level.h linux-3.0.4/arch/x86/include/asm/pgtable-2level.h ---- linux-3.0.4/arch/x86/include/asm/pgtable-2level.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable-2level.h 2011-08-23 21:47:55.000000000 -0400 -@@ -18,7 +18,9 @@ static inline void native_set_pte(pte_t - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - *pmdp = pmd; -+ pax_close_kernel(); - } - - static inline void native_set_pte_atomic(pte_t *ptep, pte_t pte) -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_32.h linux-3.0.4/arch/x86/include/asm/pgtable_32.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_32.h 2011-08-23 21:47:55.000000000 -0400 -@@ -25,9 +25,6 @@ - struct mm_struct; - struct vm_area_struct; - --extern pgd_t swapper_pg_dir[1024]; --extern pgd_t initial_page_table[1024]; -- - static inline void pgtable_cache_init(void) { } - static inline void check_pgt_cache(void) { } - void paging_init(void); -@@ -48,6 +45,12 @@ extern void set_pmd_pfn(unsigned long, u - # include - #endif - -+extern pgd_t swapper_pg_dir[PTRS_PER_PGD]; -+extern pgd_t initial_page_table[PTRS_PER_PGD]; -+#ifdef CONFIG_X86_PAE -+extern pmd_t swapper_pm_dir[PTRS_PER_PGD][PTRS_PER_PMD]; -+#endif -+ - #if defined(CONFIG_HIGHPTE) - #define pte_offset_map(dir, address) \ - ((pte_t *)kmap_atomic(pmd_page(*(dir))) + \ -@@ -62,7 +65,9 @@ extern void set_pmd_pfn(unsigned long, u - /* Clear a kernel PTE and flush it from the TLB */ - #define kpte_clear_flush(ptep, vaddr) \ - do { \ -+ pax_open_kernel(); \ - pte_clear(&init_mm, (vaddr), (ptep)); \ -+ pax_close_kernel(); \ - __flush_tlb_one((vaddr)); \ - } while (0) - -@@ -74,6 +79,9 @@ do { \ - - #endif /* !__ASSEMBLY__ */ - -+#define HAVE_ARCH_UNMAPPED_AREA -+#define HAVE_ARCH_UNMAPPED_AREA_TOPDOWN -+ - /* - * kern_addr_valid() is (1) for FLATMEM and (0) for - * SPARSEMEM and DISCONTIGMEM -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_32_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -8,7 +8,7 @@ - */ - #ifdef CONFIG_X86_PAE - # include --# define PMD_SIZE (1UL << PMD_SHIFT) -+# define PMD_SIZE (_AC(1, UL) << PMD_SHIFT) - # define PMD_MASK (~(PMD_SIZE - 1)) - #else - # include -@@ -46,6 +46,19 @@ extern bool __vmalloc_start_set; /* set - # define VMALLOC_END (FIXADDR_START - 2 * PAGE_SIZE) - #endif - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifndef __ASSEMBLY__ -+extern unsigned char MODULES_EXEC_VADDR[]; -+extern unsigned char MODULES_EXEC_END[]; -+#endif -+#include -+#define ktla_ktva(addr) (addr + LOAD_PHYSICAL_ADDR + PAGE_OFFSET) -+#define ktva_ktla(addr) (addr - LOAD_PHYSICAL_ADDR - PAGE_OFFSET) -+#else -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) -+#endif -+ - #define MODULES_VADDR VMALLOC_START - #define MODULES_END VMALLOC_END - #define MODULES_LEN (MODULES_VADDR - MODULES_END) -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable-3level.h linux-3.0.4/arch/x86/include/asm/pgtable-3level.h ---- linux-3.0.4/arch/x86/include/asm/pgtable-3level.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable-3level.h 2011-08-23 21:47:55.000000000 -0400 -@@ -38,12 +38,16 @@ static inline void native_set_pte_atomic - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - set_64bit((unsigned long long *)(pmdp), native_pmd_val(pmd)); -+ pax_close_kernel(); - } - - static inline void native_set_pud(pud_t *pudp, pud_t pud) - { -+ pax_open_kernel(); - set_64bit((unsigned long long *)(pudp), native_pud_val(pud)); -+ pax_close_kernel(); - } - - /* -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_64.h linux-3.0.4/arch/x86/include/asm/pgtable_64.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_64.h 2011-08-23 21:47:55.000000000 -0400 -@@ -16,10 +16,13 @@ - - extern pud_t level3_kernel_pgt[512]; - extern pud_t level3_ident_pgt[512]; -+extern pud_t level3_vmalloc_pgt[512]; -+extern pud_t level3_vmemmap_pgt[512]; -+extern pud_t level2_vmemmap_pgt[512]; - extern pmd_t level2_kernel_pgt[512]; - extern pmd_t level2_fixmap_pgt[512]; --extern pmd_t level2_ident_pgt[512]; --extern pgd_t init_level4_pgt[]; -+extern pmd_t level2_ident_pgt[512*2]; -+extern pgd_t init_level4_pgt[512]; - - #define swapper_pg_dir init_level4_pgt - -@@ -61,7 +64,9 @@ static inline void native_set_pte_atomic - - static inline void native_set_pmd(pmd_t *pmdp, pmd_t pmd) - { -+ pax_open_kernel(); - *pmdp = pmd; -+ pax_close_kernel(); - } - - static inline void native_pmd_clear(pmd_t *pmd) -@@ -107,6 +112,13 @@ static inline void native_pud_clear(pud_ - - static inline void native_set_pgd(pgd_t *pgdp, pgd_t pgd) - { -+ pax_open_kernel(); -+ *pgdp = pgd; -+ pax_close_kernel(); -+} -+ -+static inline void native_set_pgd_batched(pgd_t *pgdp, pgd_t pgd) -+{ - *pgdp = pgd; - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_64_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -59,5 +59,10 @@ typedef struct { pteval_t pte; } pte_t; - #define MODULES_VADDR _AC(0xffffffffa0000000, UL) - #define MODULES_END _AC(0xffffffffff000000, UL) - #define MODULES_LEN (MODULES_END - MODULES_VADDR) -+#define MODULES_EXEC_VADDR MODULES_VADDR -+#define MODULES_EXEC_END MODULES_END -+ -+#define ktla_ktva(addr) (addr) -+#define ktva_ktla(addr) (addr) - - #endif /* _ASM_X86_PGTABLE_64_DEFS_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable.h linux-3.0.4/arch/x86/include/asm/pgtable.h ---- linux-3.0.4/arch/x86/include/asm/pgtable.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable.h 2011-08-23 21:47:55.000000000 -0400 -@@ -44,6 +44,7 @@ extern struct mm_struct *pgd_page_get_mm - - #ifndef __PAGETABLE_PUD_FOLDED - #define set_pgd(pgdp, pgd) native_set_pgd(pgdp, pgd) -+#define set_pgd_batched(pgdp, pgd) native_set_pgd_batched(pgdp, pgd) - #define pgd_clear(pgd) native_pgd_clear(pgd) - #endif - -@@ -81,12 +82,51 @@ extern struct mm_struct *pgd_page_get_mm - - #define arch_end_context_switch(prev) do {} while(0) - -+#define pax_open_kernel() native_pax_open_kernel() -+#define pax_close_kernel() native_pax_close_kernel() - #endif /* CONFIG_PARAVIRT */ - -+#define __HAVE_ARCH_PAX_OPEN_KERNEL -+#define __HAVE_ARCH_PAX_CLOSE_KERNEL -+ -+#ifdef CONFIG_PAX_KERNEXEC -+static inline unsigned long native_pax_open_kernel(void) -+{ -+ unsigned long cr0; -+ -+ preempt_disable(); -+ barrier(); -+ cr0 = read_cr0() ^ X86_CR0_WP; -+ BUG_ON(unlikely(cr0 & X86_CR0_WP)); -+ write_cr0(cr0); -+ return cr0 ^ X86_CR0_WP; -+} -+ -+static inline unsigned long native_pax_close_kernel(void) -+{ -+ unsigned long cr0; -+ -+ cr0 = read_cr0() ^ X86_CR0_WP; -+ BUG_ON(unlikely(!(cr0 & X86_CR0_WP))); -+ write_cr0(cr0); -+ barrier(); -+ preempt_enable_no_resched(); -+ return cr0 ^ X86_CR0_WP; -+} -+#else -+static inline unsigned long native_pax_open_kernel(void) { return 0; } -+static inline unsigned long native_pax_close_kernel(void) { return 0; } -+#endif -+ - /* - * The following only work if pte_present() is true. - * Undefined behaviour if not.. - */ -+static inline int pte_user(pte_t pte) -+{ -+ return pte_val(pte) & _PAGE_USER; -+} -+ - static inline int pte_dirty(pte_t pte) - { - return pte_flags(pte) & _PAGE_DIRTY; -@@ -196,9 +236,29 @@ static inline pte_t pte_wrprotect(pte_t - return pte_clear_flags(pte, _PAGE_RW); - } - -+static inline pte_t pte_mkread(pte_t pte) -+{ -+ return __pte(pte_val(pte) | _PAGE_USER); -+} -+ - static inline pte_t pte_mkexec(pte_t pte) - { -- return pte_clear_flags(pte, _PAGE_NX); -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_clear_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_set_flags(pte, _PAGE_USER); -+} -+ -+static inline pte_t pte_exprotect(pte_t pte) -+{ -+#ifdef CONFIG_X86_PAE -+ if (__supported_pte_mask & _PAGE_NX) -+ return pte_set_flags(pte, _PAGE_NX); -+ else -+#endif -+ return pte_clear_flags(pte, _PAGE_USER); - } - - static inline pte_t pte_mkdirty(pte_t pte) -@@ -390,6 +450,15 @@ pte_t *populate_extra_pte(unsigned long - #endif - - #ifndef __ASSEMBLY__ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+extern pgd_t cpu_pgd[NR_CPUS][PTRS_PER_PGD]; -+static inline pgd_t *get_cpu_pgd(unsigned int cpu) -+{ -+ return cpu_pgd[cpu]; -+} -+#endif -+ - #include - - static inline int pte_none(pte_t pte) -@@ -560,7 +629,7 @@ static inline pud_t *pud_offset(pgd_t *p - - static inline int pgd_bad(pgd_t pgd) - { -- return (pgd_flags(pgd) & ~_PAGE_USER) != _KERNPG_TABLE; -+ return (pgd_flags(pgd) & ~(_PAGE_USER | _PAGE_NX)) != _KERNPG_TABLE; - } - - static inline int pgd_none(pgd_t pgd) -@@ -583,7 +652,12 @@ static inline int pgd_none(pgd_t pgd) - * pgd_offset() returns a (pgd_t *) - * pgd_index() is used get the offset into the pgd page's array of pgd_t's; - */ --#define pgd_offset(mm, address) ((mm)->pgd + pgd_index((address))) -+#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address)) -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+#define pgd_offset_cpu(cpu, address) (get_cpu_pgd(cpu) + pgd_index(address)) -+#endif -+ - /* - * a shortcut which implies the use of the kernel's pgd, instead - * of a process's -@@ -594,6 +668,20 @@ static inline int pgd_none(pgd_t pgd) - #define KERNEL_PGD_BOUNDARY pgd_index(PAGE_OFFSET) - #define KERNEL_PGD_PTRS (PTRS_PER_PGD - KERNEL_PGD_BOUNDARY) - -+#ifdef CONFIG_X86_32 -+#define USER_PGD_PTRS KERNEL_PGD_BOUNDARY -+#else -+#define TASK_SIZE_MAX_SHIFT CONFIG_TASK_SIZE_MAX_SHIFT -+#define USER_PGD_PTRS (_AC(1,UL) << (TASK_SIZE_MAX_SHIFT - PGDIR_SHIFT)) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+#define PAX_USER_SHADOW_BASE (_AC(1,UL) << TASK_SIZE_MAX_SHIFT) -+#else -+#define PAX_USER_SHADOW_BASE (_AC(0,UL)) -+#endif -+ -+#endif -+ - #ifndef __ASSEMBLY__ - - extern int direct_gbpages; -@@ -758,11 +846,23 @@ static inline void pmdp_set_wrprotect(st - * dst and src can be on the same page, but the range must not overlap, - * and must not cross a page boundary. - */ --static inline void clone_pgd_range(pgd_t *dst, pgd_t *src, int count) -+static inline void clone_pgd_range(pgd_t *dst, const pgd_t *src, int count) - { -- memcpy(dst, src, count * sizeof(pgd_t)); -+ pax_open_kernel(); -+ while (count--) -+ *dst++ = *src++; -+ pax_close_kernel(); - } - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+extern void __clone_user_pgds(pgd_t *dst, const pgd_t *src, int count); -+#endif -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+extern void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count); -+#else -+static inline void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count) {} -+#endif - - #include - #endif /* __ASSEMBLY__ */ -diff -urNp linux-3.0.4/arch/x86/include/asm/pgtable_types.h linux-3.0.4/arch/x86/include/asm/pgtable_types.h ---- linux-3.0.4/arch/x86/include/asm/pgtable_types.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/pgtable_types.h 2011-08-23 21:47:55.000000000 -0400 -@@ -16,13 +16,12 @@ - #define _PAGE_BIT_PSE 7 /* 4 MB (or 2MB) page */ - #define _PAGE_BIT_PAT 7 /* on 4KB pages */ - #define _PAGE_BIT_GLOBAL 8 /* Global TLB entry PPro+ */ --#define _PAGE_BIT_UNUSED1 9 /* available for programmer */ -+#define _PAGE_BIT_SPECIAL 9 /* special mappings, no associated struct page */ - #define _PAGE_BIT_IOMAP 10 /* flag used to indicate IO mapping */ - #define _PAGE_BIT_HIDDEN 11 /* hidden by kmemcheck */ - #define _PAGE_BIT_PAT_LARGE 12 /* On 2MB or 1GB pages */ --#define _PAGE_BIT_SPECIAL _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_CPA_TEST _PAGE_BIT_UNUSED1 --#define _PAGE_BIT_SPLITTING _PAGE_BIT_UNUSED1 /* only valid on a PSE pmd */ -+#define _PAGE_BIT_CPA_TEST _PAGE_BIT_SPECIAL -+#define _PAGE_BIT_SPLITTING _PAGE_BIT_SPECIAL /* only valid on a PSE pmd */ - #define _PAGE_BIT_NX 63 /* No execute: only valid after cpuid check */ - - /* If _PAGE_BIT_PRESENT is clear, we use these: */ -@@ -40,7 +39,6 @@ - #define _PAGE_DIRTY (_AT(pteval_t, 1) << _PAGE_BIT_DIRTY) - #define _PAGE_PSE (_AT(pteval_t, 1) << _PAGE_BIT_PSE) - #define _PAGE_GLOBAL (_AT(pteval_t, 1) << _PAGE_BIT_GLOBAL) --#define _PAGE_UNUSED1 (_AT(pteval_t, 1) << _PAGE_BIT_UNUSED1) - #define _PAGE_IOMAP (_AT(pteval_t, 1) << _PAGE_BIT_IOMAP) - #define _PAGE_PAT (_AT(pteval_t, 1) << _PAGE_BIT_PAT) - #define _PAGE_PAT_LARGE (_AT(pteval_t, 1) << _PAGE_BIT_PAT_LARGE) -@@ -57,8 +55,10 @@ - - #if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - #define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_NX) --#else -+#elif defined(CONFIG_KMEMCHECK) - #define _PAGE_NX (_AT(pteval_t, 0)) -+#else -+#define _PAGE_NX (_AT(pteval_t, 1) << _PAGE_BIT_HIDDEN) - #endif - - #define _PAGE_FILE (_AT(pteval_t, 1) << _PAGE_BIT_FILE) -@@ -96,6 +96,9 @@ - #define PAGE_READONLY_EXEC __pgprot(_PAGE_PRESENT | _PAGE_USER | \ - _PAGE_ACCESSED) - -+#define PAGE_READONLY_NOEXEC PAGE_READONLY -+#define PAGE_SHARED_NOEXEC PAGE_SHARED -+ - #define __PAGE_KERNEL_EXEC \ - (_PAGE_PRESENT | _PAGE_RW | _PAGE_DIRTY | _PAGE_ACCESSED | _PAGE_GLOBAL) - #define __PAGE_KERNEL (__PAGE_KERNEL_EXEC | _PAGE_NX) -@@ -106,8 +109,8 @@ - #define __PAGE_KERNEL_WC (__PAGE_KERNEL | _PAGE_CACHE_WC) - #define __PAGE_KERNEL_NOCACHE (__PAGE_KERNEL | _PAGE_PCD | _PAGE_PWT) - #define __PAGE_KERNEL_UC_MINUS (__PAGE_KERNEL | _PAGE_PCD) --#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RX | _PAGE_USER) --#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_VSYSCALL | _PAGE_PCD | _PAGE_PWT) -+#define __PAGE_KERNEL_VSYSCALL (__PAGE_KERNEL_RO | _PAGE_USER) -+#define __PAGE_KERNEL_VSYSCALL_NOCACHE (__PAGE_KERNEL_RO | _PAGE_PCD | _PAGE_PWT | _PAGE_USER) - #define __PAGE_KERNEL_LARGE (__PAGE_KERNEL | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_NOCACHE (__PAGE_KERNEL | _PAGE_CACHE_UC | _PAGE_PSE) - #define __PAGE_KERNEL_LARGE_EXEC (__PAGE_KERNEL_EXEC | _PAGE_PSE) -@@ -166,8 +169,8 @@ - * bits are combined, this will alow user to access the high address mapped - * VDSO in the presence of CONFIG_COMPAT_VDSO - */ --#define PTE_IDENT_ATTR 0x003 /* PRESENT+RW */ --#define PDE_IDENT_ATTR 0x067 /* PRESENT+RW+USER+DIRTY+ACCESSED */ -+#define PTE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ -+#define PDE_IDENT_ATTR 0x063 /* PRESENT+RW+DIRTY+ACCESSED */ - #define PGD_IDENT_ATTR 0x001 /* PRESENT (no other attributes) */ - #endif - -@@ -205,7 +208,17 @@ static inline pgdval_t pgd_flags(pgd_t p - { - return native_pgd_val(pgd) & PTE_FLAGS_MASK; - } -+#endif - -+#if PAGETABLE_LEVELS == 3 -+#include -+#endif -+ -+#if PAGETABLE_LEVELS == 2 -+#include -+#endif -+ -+#ifndef __ASSEMBLY__ - #if PAGETABLE_LEVELS > 3 - typedef struct { pudval_t pud; } pud_t; - -@@ -219,8 +232,6 @@ static inline pudval_t native_pud_val(pu - return pud.pud; - } - #else --#include -- - static inline pudval_t native_pud_val(pud_t pud) - { - return native_pgd_val(pud.pgd); -@@ -240,8 +251,6 @@ static inline pmdval_t native_pmd_val(pm - return pmd.pmd; - } - #else --#include -- - static inline pmdval_t native_pmd_val(pmd_t pmd) - { - return native_pgd_val(pmd.pud.pgd); -@@ -281,7 +290,6 @@ typedef struct page *pgtable_t; - - extern pteval_t __supported_pte_mask; - extern void set_nx(void); --extern int nx_enabled; - - #define pgprot_writecombine pgprot_writecombine - extern pgprot_t pgprot_writecombine(pgprot_t prot); -diff -urNp linux-3.0.4/arch/x86/include/asm/processor.h linux-3.0.4/arch/x86/include/asm/processor.h ---- linux-3.0.4/arch/x86/include/asm/processor.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/processor.h 2011-08-23 21:47:55.000000000 -0400 -@@ -266,7 +266,7 @@ struct tss_struct { - - } ____cacheline_aligned; - --DECLARE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss); -+extern struct tss_struct init_tss[NR_CPUS]; - - /* - * Save the original ist values for checking stack pointers during debugging -@@ -860,11 +860,18 @@ static inline void spin_lock_prefetch(co - */ - #define TASK_SIZE PAGE_OFFSET - #define TASK_SIZE_MAX TASK_SIZE -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_SIZE (TASK_SIZE / 2) -+#define STACK_TOP ((current->mm->pax_flags & MF_PAX_SEGMEXEC)?SEGMEXEC_TASK_SIZE:TASK_SIZE) -+#else - #define STACK_TOP TASK_SIZE --#define STACK_TOP_MAX STACK_TOP -+#endif -+ -+#define STACK_TOP_MAX TASK_SIZE - - #define INIT_THREAD { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .vm86_info = NULL, \ - .sysenter_cs = __KERNEL_CS, \ - .io_bitmap_ptr = NULL, \ -@@ -878,7 +885,7 @@ static inline void spin_lock_prefetch(co - */ - #define INIT_TSS { \ - .x86_tss = { \ -- .sp0 = sizeof(init_stack) + (long)&init_stack, \ -+ .sp0 = sizeof(init_stack) + (long)&init_stack - 8, \ - .ss0 = __KERNEL_DS, \ - .ss1 = __KERNEL_CS, \ - .io_bitmap_base = INVALID_IO_BITMAP_OFFSET, \ -@@ -889,11 +896,7 @@ static inline void spin_lock_prefetch(co - extern unsigned long thread_saved_pc(struct task_struct *tsk); - - #define THREAD_SIZE_LONGS (THREAD_SIZE/sizeof(unsigned long)) --#define KSTK_TOP(info) \ --({ \ -- unsigned long *__ptr = (unsigned long *)(info); \ -- (unsigned long)(&__ptr[THREAD_SIZE_LONGS]); \ --}) -+#define KSTK_TOP(info) ((container_of(info, struct task_struct, tinfo))->thread.sp0) - - /* - * The below -8 is to reserve 8 bytes on top of the ring0 stack. -@@ -908,7 +911,7 @@ extern unsigned long thread_saved_pc(str - #define task_pt_regs(task) \ - ({ \ - struct pt_regs *__regs__; \ -- __regs__ = (struct pt_regs *)(KSTK_TOP(task_stack_page(task))-8); \ -+ __regs__ = (struct pt_regs *)((task)->thread.sp0); \ - __regs__ - 1; \ - }) - -@@ -918,13 +921,13 @@ extern unsigned long thread_saved_pc(str - /* - * User space process size. 47bits minus one guard page. - */ --#define TASK_SIZE_MAX ((1UL << 47) - PAGE_SIZE) -+#define TASK_SIZE_MAX ((1UL << TASK_SIZE_MAX_SHIFT) - PAGE_SIZE) - - /* This decides where the kernel will search for a free chunk of vm - * space during mmap's. - */ - #define IA32_PAGE_OFFSET ((current->personality & ADDR_LIMIT_3GB) ? \ -- 0xc0000000 : 0xFFFFe000) -+ 0xc0000000 : 0xFFFFf000) - - #define TASK_SIZE (test_thread_flag(TIF_IA32) ? \ - IA32_PAGE_OFFSET : TASK_SIZE_MAX) -@@ -935,11 +938,11 @@ extern unsigned long thread_saved_pc(str - #define STACK_TOP_MAX TASK_SIZE_MAX - - #define INIT_THREAD { \ -- .sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ -+ .sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ - } - - #define INIT_TSS { \ -- .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) \ -+ .x86_tss.sp0 = (unsigned long)&init_stack + sizeof(init_stack) - 16 \ - } - - /* -@@ -961,6 +964,10 @@ extern void start_thread(struct pt_regs - */ - #define TASK_UNMAPPED_BASE (PAGE_ALIGN(TASK_SIZE / 3)) - -+#ifdef CONFIG_PAX_SEGMEXEC -+#define SEGMEXEC_TASK_UNMAPPED_BASE (PAGE_ALIGN(SEGMEXEC_TASK_SIZE / 3)) -+#endif -+ - #define KSTK_EIP(task) (task_pt_regs(task)->ip) - - /* Get/set a process' ability to use the timestamp counter instruction */ -diff -urNp linux-3.0.4/arch/x86/include/asm/ptrace.h linux-3.0.4/arch/x86/include/asm/ptrace.h ---- linux-3.0.4/arch/x86/include/asm/ptrace.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/ptrace.h 2011-08-23 21:47:55.000000000 -0400 -@@ -153,28 +153,29 @@ static inline unsigned long regs_return_ - } - - /* -- * user_mode_vm(regs) determines whether a register set came from user mode. -+ * user_mode(regs) determines whether a register set came from user mode. - * This is true if V8086 mode was enabled OR if the register set was from - * protected mode with RPL-3 CS value. This tricky test checks that with - * one comparison. Many places in the kernel can bypass this full check -- * if they have already ruled out V8086 mode, so user_mode(regs) can be used. -+ * if they have already ruled out V8086 mode, so user_mode_novm(regs) can -+ * be used. - */ --static inline int user_mode(struct pt_regs *regs) -+static inline int user_mode_novm(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return (regs->cs & SEGMENT_RPL_MASK) == USER_RPL; - #else -- return !!(regs->cs & 3); -+ return !!(regs->cs & SEGMENT_RPL_MASK); - #endif - } - --static inline int user_mode_vm(struct pt_regs *regs) -+static inline int user_mode(struct pt_regs *regs) - { - #ifdef CONFIG_X86_32 - return ((regs->cs & SEGMENT_RPL_MASK) | (regs->flags & X86_VM_MASK)) >= - USER_RPL; - #else -- return user_mode(regs); -+ return user_mode_novm(regs); - #endif - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/reboot.h linux-3.0.4/arch/x86/include/asm/reboot.h ---- linux-3.0.4/arch/x86/include/asm/reboot.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/reboot.h 2011-08-23 21:47:55.000000000 -0400 -@@ -6,19 +6,19 @@ - struct pt_regs; - - struct machine_ops { -- void (*restart)(char *cmd); -- void (*halt)(void); -- void (*power_off)(void); -+ void (* __noreturn restart)(char *cmd); -+ void (* __noreturn halt)(void); -+ void (* __noreturn power_off)(void); - void (*shutdown)(void); - void (*crash_shutdown)(struct pt_regs *); -- void (*emergency_restart)(void); --}; -+ void (* __noreturn emergency_restart)(void); -+} __no_const; - - extern struct machine_ops machine_ops; - - void native_machine_crash_shutdown(struct pt_regs *regs); - void native_machine_shutdown(void); --void machine_real_restart(unsigned int type); -+void machine_real_restart(unsigned int type) __noreturn; - /* These must match dispatch_table in reboot_32.S */ - #define MRR_BIOS 0 - #define MRR_APM 1 -diff -urNp linux-3.0.4/arch/x86/include/asm/rwsem.h linux-3.0.4/arch/x86/include/asm/rwsem.h ---- linux-3.0.4/arch/x86/include/asm/rwsem.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/rwsem.h 2011-08-23 21:47:55.000000000 -0400 -@@ -64,6 +64,14 @@ static inline void __down_read(struct rw - { - asm volatile("# beginning down_read\n\t" - LOCK_PREFIX _ASM_INC "(%1)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_DEC "(%1)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* adds 0x00000001 */ - " jns 1f\n" - " call call_rwsem_down_read_failed\n" -@@ -85,6 +93,14 @@ static inline int __down_read_trylock(st - "1:\n\t" - " mov %1,%2\n\t" - " add %3,%2\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "sub %3,%2\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - " jle 2f\n\t" - LOCK_PREFIX " cmpxchg %2,%0\n\t" - " jnz 1b\n\t" -@@ -104,6 +120,14 @@ static inline void __down_write_nested(s - long tmp; - asm volatile("# beginning down_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* adds 0xffff0001, returns the old value */ - " test %1,%1\n\t" - /* was the count 0 before? */ -@@ -141,6 +165,14 @@ static inline void __up_read(struct rw_s - long tmp; - asm volatile("# beginning __up_read\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* subtracts 1, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ -@@ -159,6 +191,14 @@ static inline void __up_write(struct rw_ - long tmp; - asm volatile("# beginning __up_write\n\t" - LOCK_PREFIX " xadd %1,(%2)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %1,(%2)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* subtracts 0xffff0001, returns the old value */ - " jns 1f\n\t" - " call call_rwsem_wake\n" /* expects old value in %edx */ -@@ -176,6 +216,14 @@ static inline void __downgrade_write(str - { - asm volatile("# beginning __downgrade_write\n\t" - LOCK_PREFIX _ASM_ADD "%2,(%1)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_SUB "%2,(%1)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - /* - * transitions 0xZZZZ0001 -> 0xYYYY0001 (i386) - * 0xZZZZZZZZ00000001 -> 0xYYYYYYYY00000001 (x86_64) -@@ -194,7 +242,15 @@ static inline void __downgrade_write(str - */ - static inline void rwsem_atomic_add(long delta, struct rw_semaphore *sem) - { -- asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0" -+ asm volatile(LOCK_PREFIX _ASM_ADD "%1,%0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX _ASM_SUB "%1,%0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (sem->count) - : "er" (delta)); - } -@@ -206,7 +262,15 @@ static inline long rwsem_atomic_update(l - { - long tmp = delta; - -- asm volatile(LOCK_PREFIX "xadd %0,%1" -+ asm volatile(LOCK_PREFIX "xadd %0,%1\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ "mov %0,%1\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+r" (tmp), "+m" (sem->count) - : : "memory"); - -diff -urNp linux-3.0.4/arch/x86/include/asm/segment.h linux-3.0.4/arch/x86/include/asm/segment.h ---- linux-3.0.4/arch/x86/include/asm/segment.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/segment.h 2011-08-23 21:47:55.000000000 -0400 -@@ -64,8 +64,8 @@ - * 26 - ESPFIX small SS - * 27 - per-cpu [ offset to per-cpu data area ] - * 28 - stack_canary-20 [ for stack protector ] -- * 29 - unused -- * 30 - unused -+ * 29 - PCI BIOS CS -+ * 30 - PCI BIOS DS - * 31 - TSS for double fault handler - */ - #define GDT_ENTRY_TLS_MIN 6 -@@ -79,6 +79,8 @@ - - #define GDT_ENTRY_KERNEL_CS (GDT_ENTRY_KERNEL_BASE+0) - -+#define GDT_ENTRY_KERNEXEC_KERNEL_CS (4) -+ - #define GDT_ENTRY_KERNEL_DS (GDT_ENTRY_KERNEL_BASE+1) - - #define GDT_ENTRY_TSS (GDT_ENTRY_KERNEL_BASE+4) -@@ -104,6 +106,12 @@ - #define __KERNEL_STACK_CANARY 0 - #endif - -+#define GDT_ENTRY_PCIBIOS_CS (GDT_ENTRY_KERNEL_BASE+17) -+#define __PCIBIOS_CS (GDT_ENTRY_PCIBIOS_CS * 8) -+ -+#define GDT_ENTRY_PCIBIOS_DS (GDT_ENTRY_KERNEL_BASE+18) -+#define __PCIBIOS_DS (GDT_ENTRY_PCIBIOS_DS * 8) -+ - #define GDT_ENTRY_DOUBLEFAULT_TSS 31 - - /* -@@ -141,7 +149,7 @@ - */ - - /* Matches PNP_CS32 and PNP_CS16 (they must be consecutive) */ --#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xf4) == GDT_ENTRY_PNPBIOS_BASE * 8) -+#define SEGMENT_IS_PNP_CODE(x) (((x) & 0xFFFCU) == PNP_CS32 || ((x) & 0xFFFCU) == PNP_CS16) - - - #else -@@ -165,6 +173,8 @@ - #define __USER32_CS (GDT_ENTRY_DEFAULT_USER32_CS * 8 + 3) - #define __USER32_DS __USER_DS - -+#define GDT_ENTRY_KERNEXEC_KERNEL_CS 7 -+ - #define GDT_ENTRY_TSS 8 /* needs two entries */ - #define GDT_ENTRY_LDT 10 /* needs two entries */ - #define GDT_ENTRY_TLS_MIN 12 -@@ -185,6 +195,7 @@ - #endif - - #define __KERNEL_CS (GDT_ENTRY_KERNEL_CS*8) -+#define __KERNEXEC_KERNEL_CS (GDT_ENTRY_KERNEXEC_KERNEL_CS*8) - #define __KERNEL_DS (GDT_ENTRY_KERNEL_DS*8) - #define __USER_DS (GDT_ENTRY_DEFAULT_USER_DS*8+3) - #define __USER_CS (GDT_ENTRY_DEFAULT_USER_CS*8+3) -diff -urNp linux-3.0.4/arch/x86/include/asm/smp.h linux-3.0.4/arch/x86/include/asm/smp.h ---- linux-3.0.4/arch/x86/include/asm/smp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/smp.h 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ DECLARE_PER_CPU(cpumask_var_t, cpu_core_ - /* cpus sharing the last level cache: */ - DECLARE_PER_CPU(cpumask_var_t, cpu_llc_shared_map); - DECLARE_PER_CPU(u16, cpu_llc_id); --DECLARE_PER_CPU(int, cpu_number); -+DECLARE_PER_CPU(unsigned int, cpu_number); - - static inline struct cpumask *cpu_sibling_mask(int cpu) - { -@@ -77,7 +77,7 @@ struct smp_ops { - - void (*send_call_func_ipi)(const struct cpumask *mask); - void (*send_call_func_single_ipi)(int cpu); --}; -+} __no_const; - - /* Globals due to paravirt */ - extern void set_cpu_sibling_map(int cpu); -@@ -192,14 +192,8 @@ extern unsigned disabled_cpus __cpuinitd - extern int safe_smp_processor_id(void); - - #elif defined(CONFIG_X86_64_SMP) --#define raw_smp_processor_id() (percpu_read(cpu_number)) -- --#define stack_smp_processor_id() \ --({ \ -- struct thread_info *ti; \ -- __asm__("andq %%rsp,%0; ":"=r" (ti) : "0" (CURRENT_MASK)); \ -- ti->cpu; \ --}) -+#define raw_smp_processor_id() (percpu_read(cpu_number)) -+#define stack_smp_processor_id() raw_smp_processor_id() - #define safe_smp_processor_id() smp_processor_id() - - #endif -diff -urNp linux-3.0.4/arch/x86/include/asm/spinlock.h linux-3.0.4/arch/x86/include/asm/spinlock.h ---- linux-3.0.4/arch/x86/include/asm/spinlock.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/spinlock.h 2011-08-23 21:47:55.000000000 -0400 -@@ -249,6 +249,14 @@ static inline int arch_write_can_lock(ar - static inline void arch_read_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl $1,(%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX " addl $1,(%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jns 1f\n" - "call __read_lock_failed\n\t" - "1:\n" -@@ -258,6 +266,14 @@ static inline void arch_read_lock(arch_r - static inline void arch_write_lock(arch_rwlock_t *rw) - { - asm volatile(LOCK_PREFIX " subl %1,(%0)\n\t" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX " addl %1,(%0)\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - "jz 1f\n" - "call __write_lock_failed\n\t" - "1:\n" -@@ -286,12 +302,29 @@ static inline int arch_write_trylock(arc - - static inline void arch_read_unlock(arch_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "incl %0" :"+m" (rw->lock) : : "memory"); -+ asm volatile(LOCK_PREFIX "incl %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "decl %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+ :"+m" (rw->lock) : : "memory"); - } - - static inline void arch_write_unlock(arch_rwlock_t *rw) - { -- asm volatile(LOCK_PREFIX "addl %1, %0" -+ asm volatile(LOCK_PREFIX "addl %1, %0\n" -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ "jno 0f\n" -+ LOCK_PREFIX "subl %1, %0\n" -+ "int $4\n0:\n" -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ - : "+m" (rw->lock) : "i" (RW_LOCK_BIAS) : "memory"); - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/stackprotector.h linux-3.0.4/arch/x86/include/asm/stackprotector.h ---- linux-3.0.4/arch/x86/include/asm/stackprotector.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/stackprotector.h 2011-08-23 21:47:55.000000000 -0400 -@@ -48,7 +48,7 @@ - * head_32 for boot CPU and setup_per_cpu_areas() for others. - */ - #define GDT_STACK_CANARY_INIT \ -- [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x18), -+ [GDT_ENTRY_STACK_CANARY] = GDT_ENTRY_INIT(0x4090, 0, 0x17), - - /* - * Initialize the stackprotector canary value. -@@ -113,7 +113,7 @@ static inline void setup_stack_canary_se - - static inline void load_stack_canary_segment(void) - { --#ifdef CONFIG_X86_32 -+#if defined(CONFIG_X86_32) && !defined(CONFIG_PAX_MEMORY_UDEREF) - asm volatile ("mov %0, %%gs" : : "r" (0)); - #endif - } -diff -urNp linux-3.0.4/arch/x86/include/asm/stacktrace.h linux-3.0.4/arch/x86/include/asm/stacktrace.h ---- linux-3.0.4/arch/x86/include/asm/stacktrace.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/stacktrace.h 2011-08-23 21:47:55.000000000 -0400 -@@ -11,28 +11,20 @@ - - extern int kstack_depth_to_print; - --struct thread_info; -+struct task_struct; - struct stacktrace_ops; - --typedef unsigned long (*walk_stack_t)(struct thread_info *tinfo, -- unsigned long *stack, -- unsigned long bp, -- const struct stacktrace_ops *ops, -- void *data, -- unsigned long *end, -- int *graph); -- --extern unsigned long --print_context_stack(struct thread_info *tinfo, -- unsigned long *stack, unsigned long bp, -- const struct stacktrace_ops *ops, void *data, -- unsigned long *end, int *graph); -- --extern unsigned long --print_context_stack_bp(struct thread_info *tinfo, -- unsigned long *stack, unsigned long bp, -- const struct stacktrace_ops *ops, void *data, -- unsigned long *end, int *graph); -+typedef unsigned long walk_stack_t(struct task_struct *task, -+ void *stack_start, -+ unsigned long *stack, -+ unsigned long bp, -+ const struct stacktrace_ops *ops, -+ void *data, -+ unsigned long *end, -+ int *graph); -+ -+extern walk_stack_t print_context_stack; -+extern walk_stack_t print_context_stack_bp; - - /* Generic stack tracer with callbacks */ - -@@ -40,7 +32,7 @@ struct stacktrace_ops { - void (*address)(void *data, unsigned long address, int reliable); - /* On negative return stop dumping */ - int (*stack)(void *data, char *name); -- walk_stack_t walk_stack; -+ walk_stack_t *walk_stack; - }; - - void dump_trace(struct task_struct *tsk, struct pt_regs *regs, -diff -urNp linux-3.0.4/arch/x86/include/asm/system.h linux-3.0.4/arch/x86/include/asm/system.h ---- linux-3.0.4/arch/x86/include/asm/system.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/system.h 2011-08-23 21:47:55.000000000 -0400 -@@ -129,7 +129,7 @@ do { \ - "call __switch_to\n\t" \ - "movq "__percpu_arg([current_task])",%%rsi\n\t" \ - __switch_canary \ -- "movq %P[thread_info](%%rsi),%%r8\n\t" \ -+ "movq "__percpu_arg([thread_info])",%%r8\n\t" \ - "movq %%rax,%%rdi\n\t" \ - "testl %[_tif_fork],%P[ti_flags](%%r8)\n\t" \ - "jnz ret_from_fork\n\t" \ -@@ -140,7 +140,7 @@ do { \ - [threadrsp] "i" (offsetof(struct task_struct, thread.sp)), \ - [ti_flags] "i" (offsetof(struct thread_info, flags)), \ - [_tif_fork] "i" (_TIF_FORK), \ -- [thread_info] "i" (offsetof(struct task_struct, stack)), \ -+ [thread_info] "m" (current_tinfo), \ - [current_task] "m" (current_task) \ - __switch_canary_iparam \ - : "memory", "cc" __EXTRA_CLOBBER) -@@ -200,7 +200,7 @@ static inline unsigned long get_limit(un - { - unsigned long __limit; - asm("lsll %1,%0" : "=r" (__limit) : "r" (segment)); -- return __limit + 1; -+ return __limit; - } - - static inline void native_clts(void) -@@ -397,12 +397,12 @@ void enable_hlt(void); - - void cpu_idle_wait(void); - --extern unsigned long arch_align_stack(unsigned long sp); -+#define arch_align_stack(x) ((x) & ~0xfUL) - extern void free_init_pages(char *what, unsigned long begin, unsigned long end); - - void default_idle(void); - --void stop_this_cpu(void *dummy); -+void stop_this_cpu(void *dummy) __noreturn; - - /* - * Force strict CPU ordering. -diff -urNp linux-3.0.4/arch/x86/include/asm/thread_info.h linux-3.0.4/arch/x86/include/asm/thread_info.h ---- linux-3.0.4/arch/x86/include/asm/thread_info.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/thread_info.h 2011-08-23 21:47:55.000000000 -0400 -@@ -10,6 +10,7 @@ - #include - #include - #include -+#include - - /* - * low level task data that entry.S needs immediate access to -@@ -24,7 +25,6 @@ struct exec_domain; - #include - - struct thread_info { -- struct task_struct *task; /* main task structure */ - struct exec_domain *exec_domain; /* execution domain */ - __u32 flags; /* low level flags */ - __u32 status; /* thread synchronous flags */ -@@ -34,18 +34,12 @@ struct thread_info { - mm_segment_t addr_limit; - struct restart_block restart_block; - void __user *sysenter_return; --#ifdef CONFIG_X86_32 -- unsigned long previous_esp; /* ESP of the previous stack in -- case of nested (IRQ) stacks -- */ -- __u8 supervisor_stack[0]; --#endif -+ unsigned long lowest_stack; - int uaccess_err; - }; - --#define INIT_THREAD_INFO(tsk) \ -+#define INIT_THREAD_INFO \ - { \ -- .task = &tsk, \ - .exec_domain = &default_exec_domain, \ - .flags = 0, \ - .cpu = 0, \ -@@ -56,7 +50,7 @@ struct thread_info { - }, \ - } - --#define init_thread_info (init_thread_union.thread_info) -+#define init_thread_info (init_thread_union.stack) - #define init_stack (init_thread_union.stack) - - #else /* !__ASSEMBLY__ */ -@@ -170,6 +164,23 @@ struct thread_info { - ret; \ - }) - -+#ifdef __ASSEMBLY__ -+/* how to get the thread information struct from ASM */ -+#define GET_THREAD_INFO(reg) \ -+ mov PER_CPU_VAR(current_tinfo), reg -+ -+/* use this one if reg already contains %esp */ -+#define GET_THREAD_INFO_WITH_ESP(reg) GET_THREAD_INFO(reg) -+#else -+/* how to get the thread information struct from C */ -+DECLARE_PER_CPU(struct thread_info *, current_tinfo); -+ -+static __always_inline struct thread_info *current_thread_info(void) -+{ -+ return percpu_read_stable(current_tinfo); -+} -+#endif -+ - #ifdef CONFIG_X86_32 - - #define STACK_WARN (THREAD_SIZE/8) -@@ -180,35 +191,13 @@ struct thread_info { - */ - #ifndef __ASSEMBLY__ - -- - /* how to get the current stack pointer from C */ - register unsigned long current_stack_pointer asm("esp") __used; - --/* how to get the thread information struct from C */ --static inline struct thread_info *current_thread_info(void) --{ -- return (struct thread_info *) -- (current_stack_pointer & ~(THREAD_SIZE - 1)); --} -- --#else /* !__ASSEMBLY__ */ -- --/* how to get the thread information struct from ASM */ --#define GET_THREAD_INFO(reg) \ -- movl $-THREAD_SIZE, reg; \ -- andl %esp, reg -- --/* use this one if reg already contains %esp */ --#define GET_THREAD_INFO_WITH_ESP(reg) \ -- andl $-THREAD_SIZE, reg -- - #endif - - #else /* X86_32 */ - --#include --#define KERNEL_STACK_OFFSET (5*8) -- - /* - * macros/functions for gaining access to the thread information structure - * preempt_count needs to be 1 initially, until the scheduler is functional. -@@ -216,21 +205,8 @@ static inline struct thread_info *curren - #ifndef __ASSEMBLY__ - DECLARE_PER_CPU(unsigned long, kernel_stack); - --static inline struct thread_info *current_thread_info(void) --{ -- struct thread_info *ti; -- ti = (void *)(percpu_read_stable(kernel_stack) + -- KERNEL_STACK_OFFSET - THREAD_SIZE); -- return ti; --} -- --#else /* !__ASSEMBLY__ */ -- --/* how to get the thread information struct from ASM */ --#define GET_THREAD_INFO(reg) \ -- movq PER_CPU_VAR(kernel_stack),reg ; \ -- subq $(THREAD_SIZE-KERNEL_STACK_OFFSET),reg -- -+/* how to get the current stack pointer from C */ -+register unsigned long current_stack_pointer asm("rsp") __used; - #endif - - #endif /* !X86_32 */ -@@ -266,5 +242,16 @@ extern void arch_task_cache_init(void); - extern void free_thread_info(struct thread_info *ti); - extern int arch_dup_task_struct(struct task_struct *dst, struct task_struct *src); - #define arch_task_cache_init arch_task_cache_init -+ -+#define __HAVE_THREAD_FUNCTIONS -+#define task_thread_info(task) (&(task)->tinfo) -+#define task_stack_page(task) ((task)->stack) -+#define setup_thread_stack(p, org) do {} while (0) -+#define end_of_stack(p) ((unsigned long *)task_stack_page(p) + 1) -+ -+#define __HAVE_ARCH_TASK_STRUCT_ALLOCATOR -+extern struct task_struct *alloc_task_struct_node(int node); -+extern void free_task_struct(struct task_struct *); -+ - #endif - #endif /* _ASM_X86_THREAD_INFO_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/uaccess_32.h linux-3.0.4/arch/x86/include/asm/uaccess_32.h ---- linux-3.0.4/arch/x86/include/asm/uaccess_32.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess_32.h 2011-08-23 21:48:14.000000000 -0400 -@@ -43,6 +43,11 @@ unsigned long __must_check __copy_from_u - static __always_inline unsigned long __must_check - __copy_to_user_inatomic(void __user *to, const void *from, unsigned long n) - { -+ pax_track_stack(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -61,6 +66,8 @@ __copy_to_user_inatomic(void __user *to, - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(from, n, true); - return __copy_to_user_ll(to, from, n); - } - -@@ -82,12 +89,16 @@ static __always_inline unsigned long __m - __copy_to_user(void __user *to, const void *from, unsigned long n) - { - might_fault(); -+ - return __copy_to_user_inatomic(to, from, n); - } - - static __always_inline unsigned long - __copy_from_user_inatomic(void *to, const void __user *from, unsigned long n) - { -+ if ((long)n < 0) -+ return n; -+ - /* Avoid zeroing the tail if the copy fails.. - * If 'n' is constant and 1, 2, or 4, we do still zero on a failure, - * but as the zeroing behaviour is only significant when n is not -@@ -137,6 +148,12 @@ static __always_inline unsigned long - __copy_from_user(void *to, const void __user *from, unsigned long n) - { - might_fault(); -+ -+ pax_track_stack(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -152,6 +169,8 @@ __copy_from_user(void *to, const void __ - return ret; - } - } -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); - return __copy_from_user_ll(to, from, n); - } - -@@ -159,6 +178,10 @@ static __always_inline unsigned long __c - const void __user *from, unsigned long n) - { - might_fault(); -+ -+ if ((long)n < 0) -+ return n; -+ - if (__builtin_constant_p(n)) { - unsigned long ret; - -@@ -181,15 +204,19 @@ static __always_inline unsigned long - __copy_from_user_inatomic_nocache(void *to, const void __user *from, - unsigned long n) - { -- return __copy_from_user_ll_nocache_nozero(to, from, n); --} -+ if ((long)n < 0) -+ return n; - --unsigned long __must_check copy_to_user(void __user *to, -- const void *from, unsigned long n); --unsigned long __must_check _copy_from_user(void *to, -- const void __user *from, -- unsigned long n); -+ return __copy_from_user_ll_nocache_nozero(to, from, n); -+} - -+extern void copy_to_user_overflow(void) -+#ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -+ __compiletime_error("copy_to_user() buffer size is not provably correct") -+#else -+ __compiletime_warning("copy_to_user() buffer size is not provably correct") -+#endif -+; - - extern void copy_from_user_overflow(void) - #ifdef CONFIG_DEBUG_STRICT_USER_COPY_CHECKS -@@ -199,17 +226,61 @@ extern void copy_from_user_overflow(void - #endif - ; - --static inline unsigned long __must_check copy_from_user(void *to, -- const void __user *from, -- unsigned long n) -+/** -+ * copy_to_user: - Copy a block of data into user space. -+ * @to: Destination address, in user space. -+ * @from: Source address, in kernel space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from kernel space to user space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ */ -+static inline unsigned long __must_check -+copy_to_user(void __user *to, const void *from, unsigned long n) -+{ -+ int sz = __compiletime_object_size(from); -+ -+ if (unlikely(sz != -1 && sz < n)) -+ copy_to_user_overflow(); -+ else if (access_ok(VERIFY_WRITE, to, n)) -+ n = __copy_to_user(to, from, n); -+ return n; -+} -+ -+/** -+ * copy_from_user: - Copy a block of data from user space. -+ * @to: Destination address, in kernel space. -+ * @from: Source address, in user space. -+ * @n: Number of bytes to copy. -+ * -+ * Context: User context only. This function may sleep. -+ * -+ * Copy data from user space to kernel space. -+ * -+ * Returns number of bytes that could not be copied. -+ * On success, this will be zero. -+ * -+ * If some data could not be copied, this function will pad the copied -+ * data to the requested size using zero bytes. -+ */ -+static inline unsigned long __must_check -+copy_from_user(void *to, const void __user *from, unsigned long n) - { - int sz = __compiletime_object_size(to); - -- if (likely(sz == -1 || sz >= n)) -- n = _copy_from_user(to, from, n); -- else -+ if (unlikely(sz != -1 && sz < n)) - copy_from_user_overflow(); -- -+ else if (access_ok(VERIFY_READ, from, n)) -+ n = __copy_from_user(to, from, n); -+ else if ((long)n > 0) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } - return n; - } - -diff -urNp linux-3.0.4/arch/x86/include/asm/uaccess_64.h linux-3.0.4/arch/x86/include/asm/uaccess_64.h ---- linux-3.0.4/arch/x86/include/asm/uaccess_64.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess_64.h 2011-08-23 21:48:14.000000000 -0400 -@@ -10,6 +10,9 @@ - #include - #include - #include -+#include -+ -+#define set_fs(x) (current_thread_info()->addr_limit = (x)) - - /* - * Copy To/From Userspace -@@ -36,26 +39,26 @@ copy_user_generic(void *to, const void * - return ret; - } - --__must_check unsigned long --_copy_to_user(void __user *to, const void *from, unsigned len); --__must_check unsigned long --_copy_from_user(void *to, const void __user *from, unsigned len); -+static __always_inline __must_check unsigned long -+__copy_to_user(void __user *to, const void *from, unsigned len); -+static __always_inline __must_check unsigned long -+__copy_from_user(void *to, const void __user *from, unsigned len); - __must_check unsigned long - copy_in_user(void __user *to, const void __user *from, unsigned len); - - static inline unsigned long __must_check copy_from_user(void *to, - const void __user *from, -- unsigned long n) -+ unsigned n) - { -- int sz = __compiletime_object_size(to); -- - might_fault(); -- if (likely(sz == -1 || sz >= n)) -- n = _copy_from_user(to, from, n); --#ifdef CONFIG_DEBUG_VM -- else -- WARN(1, "Buffer overflow detected!\n"); --#endif -+ -+ if (access_ok(VERIFY_READ, from, n)) -+ n = __copy_from_user(to, from, n); -+ else if ((int)n > 0) { -+ if (!__builtin_constant_p(n)) -+ check_object_size(to, n, false); -+ memset(to, 0, n); -+ } - return n; - } - -@@ -64,110 +67,198 @@ int copy_to_user(void __user *dst, const - { - might_fault(); - -- return _copy_to_user(dst, src, size); -+ if (access_ok(VERIFY_WRITE, dst, size)) -+ size = __copy_to_user(dst, src, size); -+ return size; - } - - static __always_inline __must_check --int __copy_from_user(void *dst, const void __user *src, unsigned size) -+unsigned long __copy_from_user(void *dst, const void __user *src, unsigned size) - { -- int ret = 0; -+ int sz = __compiletime_object_size(dst); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -- return copy_user_generic(dst, (__force void *)src, size); -+ -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != -1 && sz < size)) { -+#ifdef CONFIG_DEBUG_VM -+ WARN(1, "Buffer overflow detected!\n"); -+#endif -+ return size; -+ } -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(dst, size, false); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic(dst, (__force const void *)src, size); -+ } - switch (size) { -- case 1:__get_user_asm(*(u8 *)dst, (u8 __user *)src, -+ case 1:__get_user_asm(*(u8 *)dst, (const u8 __user *)src, - ret, "b", "b", "=q", 1); - return ret; -- case 2:__get_user_asm(*(u16 *)dst, (u16 __user *)src, -+ case 2:__get_user_asm(*(u16 *)dst, (const u16 __user *)src, - ret, "w", "w", "=r", 2); - return ret; -- case 4:__get_user_asm(*(u32 *)dst, (u32 __user *)src, -+ case 4:__get_user_asm(*(u32 *)dst, (const u32 __user *)src, - ret, "l", "k", "=r", 4); - return ret; -- case 8:__get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ case 8:__get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 8); - return ret; - case 10: -- __get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 10); - if (unlikely(ret)) - return ret; - __get_user_asm(*(u16 *)(8 + (char *)dst), -- (u16 __user *)(8 + (char __user *)src), -+ (const u16 __user *)(8 + (const char __user *)src), - ret, "w", "w", "=r", 2); - return ret; - case 16: -- __get_user_asm(*(u64 *)dst, (u64 __user *)src, -+ __get_user_asm(*(u64 *)dst, (const u64 __user *)src, - ret, "q", "", "=r", 16); - if (unlikely(ret)) - return ret; - __get_user_asm(*(u64 *)(8 + (char *)dst), -- (u64 __user *)(8 + (char __user *)src), -+ (const u64 __user *)(8 + (const char __user *)src), - ret, "q", "", "=r", 8); - return ret; - default: -- return copy_user_generic(dst, (__force void *)src, size); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ -+ return copy_user_generic(dst, (__force const void *)src, size); - } - } - - static __always_inline __must_check --int __copy_to_user(void __user *dst, const void *src, unsigned size) -+unsigned long __copy_to_user(void __user *dst, const void *src, unsigned size) - { -- int ret = 0; -+ int sz = __compiletime_object_size(src); -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+#endif -+ -+ if (unlikely(sz != -1 && sz < size)) { -+#ifdef CONFIG_DEBUG_VM -+ WARN(1, "Buffer overflow detected!\n"); -+#endif -+ return size; -+ } -+ -+ if (!__builtin_constant_p(size)) { -+ check_object_size(src, size, true); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)dst, src, size); -+ } - switch (size) { -- case 1:__put_user_asm(*(u8 *)src, (u8 __user *)dst, -+ case 1:__put_user_asm(*(const u8 *)src, (u8 __user *)dst, - ret, "b", "b", "iq", 1); - return ret; -- case 2:__put_user_asm(*(u16 *)src, (u16 __user *)dst, -+ case 2:__put_user_asm(*(const u16 *)src, (u16 __user *)dst, - ret, "w", "w", "ir", 2); - return ret; -- case 4:__put_user_asm(*(u32 *)src, (u32 __user *)dst, -+ case 4:__put_user_asm(*(const u32 *)src, (u32 __user *)dst, - ret, "l", "k", "ir", 4); - return ret; -- case 8:__put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ case 8:__put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 8); - return ret; - case 10: -- __put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 10); - if (unlikely(ret)) - return ret; - asm("":::"memory"); -- __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst, -+ __put_user_asm(4[(const u16 *)src], 4 + (u16 __user *)dst, - ret, "w", "w", "ir", 2); - return ret; - case 16: -- __put_user_asm(*(u64 *)src, (u64 __user *)dst, -+ __put_user_asm(*(const u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 16); - if (unlikely(ret)) - return ret; - asm("":::"memory"); -- __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst, -+ __put_user_asm(1[(const u64 *)src], 1 + (u64 __user *)dst, - ret, "q", "", "er", 8); - return ret; - default: -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)dst, src, size); - } - } - - static __always_inline __must_check --int __copy_in_user(void __user *dst, const void __user *src, unsigned size) -+unsigned long __copy_in_user(void __user *dst, const void __user *src, unsigned size) - { -- int ret = 0; -+ unsigned ret = 0; - - might_fault(); -- if (!__builtin_constant_p(size)) -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+#endif -+ -+ if (!__builtin_constant_p(size)) { -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)dst, -- (__force void *)src, size); -+ (__force const void *)src, size); -+ } - switch (size) { - case 1: { - u8 tmp; -- __get_user_asm(tmp, (u8 __user *)src, -+ __get_user_asm(tmp, (const u8 __user *)src, - ret, "b", "b", "=q", 1); - if (likely(!ret)) - __put_user_asm(tmp, (u8 __user *)dst, -@@ -176,7 +267,7 @@ int __copy_in_user(void __user *dst, con - } - case 2: { - u16 tmp; -- __get_user_asm(tmp, (u16 __user *)src, -+ __get_user_asm(tmp, (const u16 __user *)src, - ret, "w", "w", "=r", 2); - if (likely(!ret)) - __put_user_asm(tmp, (u16 __user *)dst, -@@ -186,7 +277,7 @@ int __copy_in_user(void __user *dst, con - - case 4: { - u32 tmp; -- __get_user_asm(tmp, (u32 __user *)src, -+ __get_user_asm(tmp, (const u32 __user *)src, - ret, "l", "k", "=r", 4); - if (likely(!ret)) - __put_user_asm(tmp, (u32 __user *)dst, -@@ -195,7 +286,7 @@ int __copy_in_user(void __user *dst, con - } - case 8: { - u64 tmp; -- __get_user_asm(tmp, (u64 __user *)src, -+ __get_user_asm(tmp, (const u64 __user *)src, - ret, "q", "", "=r", 8); - if (likely(!ret)) - __put_user_asm(tmp, (u64 __user *)dst, -@@ -203,8 +294,16 @@ int __copy_in_user(void __user *dst, con - return ret; - } - default: -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)dst, -- (__force void *)src, size); -+ (__force const void *)src, size); - } - } - -@@ -221,33 +320,72 @@ __must_check unsigned long __clear_user( - static __must_check __always_inline int - __copy_from_user_inatomic(void *dst, const void __user *src, unsigned size) - { -+ pax_track_stack(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+ -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic(dst, (__force const void *)src, size); - } - --static __must_check __always_inline int -+static __must_check __always_inline unsigned long - __copy_to_user_inatomic(void __user *dst, const void *src, unsigned size) - { -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_WRITE, dst, size)) -+ return size; -+ -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)dst, src, size); - } - --extern long __copy_user_nocache(void *dst, const void __user *src, -+extern unsigned long __copy_user_nocache(void *dst, const void __user *src, - unsigned size, int zerorest); - --static inline int --__copy_from_user_nocache(void *dst, const void __user *src, unsigned size) -+static inline unsigned long __copy_from_user_nocache(void *dst, const void __user *src, unsigned size) - { - might_sleep(); -+ -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ - return __copy_user_nocache(dst, src, size, 1); - } - --static inline int --__copy_from_user_inatomic_nocache(void *dst, const void __user *src, -+static inline unsigned long __copy_from_user_inatomic_nocache(void *dst, const void __user *src, - unsigned size) - { -+ if ((int)size < 0) -+ return size; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if (!__access_ok(VERIFY_READ, src, size)) -+ return size; -+#endif -+ - return __copy_user_nocache(dst, src, size, 0); - } - --unsigned long -+extern unsigned long - copy_user_handle_tail(char *to, char *from, unsigned len, unsigned zerorest); - - #endif /* _ASM_X86_UACCESS_64_H */ -diff -urNp linux-3.0.4/arch/x86/include/asm/uaccess.h linux-3.0.4/arch/x86/include/asm/uaccess.h ---- linux-3.0.4/arch/x86/include/asm/uaccess.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/uaccess.h 2011-08-23 21:47:55.000000000 -0400 -@@ -7,12 +7,15 @@ - #include - #include - #include -+#include - #include - #include - - #define VERIFY_READ 0 - #define VERIFY_WRITE 1 - -+extern void check_object_size(const void *ptr, unsigned long n, bool to); -+ - /* - * The fs value determines whether argument validity checking should be - * performed or not. If get_fs() == USER_DS, checking is performed, with -@@ -28,7 +31,12 @@ - - #define get_ds() (KERNEL_DS) - #define get_fs() (current_thread_info()->addr_limit) -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+void __set_fs(mm_segment_t x); -+void set_fs(mm_segment_t x); -+#else - #define set_fs(x) (current_thread_info()->addr_limit = (x)) -+#endif - - #define segment_eq(a, b) ((a).seg == (b).seg) - -@@ -76,7 +84,33 @@ - * checks that the pointer is in the user space range - after calling - * this function, memory access functions may still return -EFAULT. - */ --#define access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) -+#define __access_ok(type, addr, size) (likely(__range_not_ok(addr, size) == 0)) -+#define access_ok(type, addr, size) \ -+({ \ -+ long __size = size; \ -+ unsigned long __addr = (unsigned long)addr; \ -+ unsigned long __addr_ao = __addr & PAGE_MASK; \ -+ unsigned long __end_ao = __addr + __size - 1; \ -+ bool __ret_ao = __range_not_ok(__addr, __size) == 0; \ -+ if (__ret_ao && unlikely((__end_ao ^ __addr_ao) & PAGE_MASK)) { \ -+ while(__addr_ao <= __end_ao) { \ -+ char __c_ao; \ -+ __addr_ao += PAGE_SIZE; \ -+ if (__size > PAGE_SIZE) \ -+ cond_resched(); \ -+ if (__get_user(__c_ao, (char __user *)__addr)) \ -+ break; \ -+ if (type != VERIFY_WRITE) { \ -+ __addr = __addr_ao; \ -+ continue; \ -+ } \ -+ if (__put_user(__c_ao, (char __user *)__addr)) \ -+ break; \ -+ __addr = __addr_ao; \ -+ } \ -+ } \ -+ __ret_ao; \ -+}) - - /* - * The exception table consists of pairs of addresses: the first is the -@@ -182,12 +216,20 @@ extern int __get_user_bad(void); - asm volatile("call __put_user_" #size : "=a" (__ret_pu) \ - : "0" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") - -- -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg "gs;" -+#define __COPYUSER_SET_ES "pushl %%gs; popl %%es\n" -+#define __COPYUSER_RESTORE_ES "pushl %%ss; popl %%es\n" -+#else -+#define __copyuser_seg -+#define __COPYUSER_SET_ES -+#define __COPYUSER_RESTORE_ES -+#endif - - #ifdef CONFIG_X86_32 - #define __put_user_asm_u64(x, addr, err, errret) \ -- asm volatile("1: movl %%eax,0(%2)\n" \ -- "2: movl %%edx,4(%2)\n" \ -+ asm volatile("1: "__copyuser_seg"movl %%eax,0(%2)\n" \ -+ "2: "__copyuser_seg"movl %%edx,4(%2)\n" \ - "3:\n" \ - ".section .fixup,\"ax\"\n" \ - "4: movl %3,%0\n" \ -@@ -199,8 +241,8 @@ extern int __get_user_bad(void); - : "A" (x), "r" (addr), "i" (errret), "0" (err)) - - #define __put_user_asm_ex_u64(x, addr) \ -- asm volatile("1: movl %%eax,0(%1)\n" \ -- "2: movl %%edx,4(%1)\n" \ -+ asm volatile("1: "__copyuser_seg"movl %%eax,0(%1)\n" \ -+ "2: "__copyuser_seg"movl %%edx,4(%1)\n" \ - "3:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - _ASM_EXTABLE(2b, 3b - 2b) \ -@@ -373,7 +415,7 @@ do { \ - } while (0) - - #define __get_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %2,%"rtype"1\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %2,%"rtype"1\n"\ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ -@@ -381,7 +423,7 @@ do { \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ -- : "=r" (err), ltype(x) \ -+ : "=r" (err), ltype (x) \ - : "m" (__m(addr)), "i" (errret), "0" (err)) - - #define __get_user_size_ex(x, ptr, size) \ -@@ -406,7 +448,7 @@ do { \ - } while (0) - - #define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %1,%"rtype"0\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %1,%"rtype"0\n"\ - "2:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - : ltype(x) : "m" (__m(addr))) -@@ -423,13 +465,24 @@ do { \ - int __gu_err; \ - unsigned long __gu_val; \ - __get_user_size(__gu_val, (ptr), (size), __gu_err, -EFAULT); \ -- (x) = (__force __typeof__(*(ptr)))__gu_val; \ -+ (x) = (__typeof__(*(ptr)))__gu_val; \ - __gu_err; \ - }) - - /* FIXME: this hack is definitely wrong -AK */ - struct __large_struct { unsigned long buf[100]; }; --#define __m(x) (*(struct __large_struct __user *)(x)) -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define ____m(x) \ -+({ \ -+ unsigned long ____x = (unsigned long)(x); \ -+ if (____x < PAX_USER_SHADOW_BASE) \ -+ ____x += PAX_USER_SHADOW_BASE; \ -+ (void __user *)____x; \ -+}) -+#else -+#define ____m(x) (x) -+#endif -+#define __m(x) (*(struct __large_struct __user *)____m(x)) - - /* - * Tell gcc we read from memory instead of writing: this is because -@@ -437,7 +490,7 @@ struct __large_struct { unsigned long bu - * aliasing issues. - */ - #define __put_user_asm(x, addr, err, itype, rtype, ltype, errret) \ -- asm volatile("1: mov"itype" %"rtype"1,%2\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"1,%2\n"\ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ -@@ -445,10 +498,10 @@ struct __large_struct { unsigned long bu - ".previous\n" \ - _ASM_EXTABLE(1b, 3b) \ - : "=r"(err) \ -- : ltype(x), "m" (__m(addr)), "i" (errret), "0" (err)) -+ : ltype (x), "m" (__m(addr)), "i" (errret), "0" (err)) - - #define __put_user_asm_ex(x, addr, itype, rtype, ltype) \ -- asm volatile("1: mov"itype" %"rtype"0,%1\n" \ -+ asm volatile("1: "__copyuser_seg"mov"itype" %"rtype"0,%1\n"\ - "2:\n" \ - _ASM_EXTABLE(1b, 2b - 1b) \ - : : ltype(x), "m" (__m(addr))) -@@ -487,8 +540,12 @@ struct __large_struct { unsigned long bu - * On error, the variable @x is set to zero. - */ - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __get_user(x, ptr) get_user((x), (ptr)) -+#else - #define __get_user(x, ptr) \ - __get_user_nocheck((x), (ptr), sizeof(*(ptr))) -+#endif - - /** - * __put_user: - Write a simple value into user space, with less checking. -@@ -510,8 +567,12 @@ struct __large_struct { unsigned long bu - * Returns zero on success, or -EFAULT on error. - */ - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __put_user(x, ptr) put_user((x), (ptr)) -+#else - #define __put_user(x, ptr) \ - __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -+#endif - - #define __get_user_unaligned __get_user - #define __put_user_unaligned __put_user -@@ -529,7 +590,7 @@ struct __large_struct { unsigned long bu - #define get_user_ex(x, ptr) do { \ - unsigned long __gue_val; \ - __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \ -- (x) = (__force __typeof__(*(ptr)))__gue_val; \ -+ (x) = (__typeof__(*(ptr)))__gue_val; \ - } while (0) - - #ifdef CONFIG_X86_WP_WORKS_OK -diff -urNp linux-3.0.4/arch/x86/include/asm/x86_init.h linux-3.0.4/arch/x86/include/asm/x86_init.h ---- linux-3.0.4/arch/x86/include/asm/x86_init.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/x86_init.h 2011-08-23 21:47:55.000000000 -0400 -@@ -28,7 +28,7 @@ struct x86_init_mpparse { - void (*mpc_oem_bus_info)(struct mpc_bus *m, char *name); - void (*find_smp_config)(void); - void (*get_smp_config)(unsigned int early); --}; -+} __no_const; - - /** - * struct x86_init_resources - platform specific resource related ops -@@ -42,7 +42,7 @@ struct x86_init_resources { - void (*probe_roms)(void); - void (*reserve_resources)(void); - char *(*memory_setup)(void); --}; -+} __no_const; - - /** - * struct x86_init_irqs - platform specific interrupt setup -@@ -55,7 +55,7 @@ struct x86_init_irqs { - void (*pre_vector_init)(void); - void (*intr_init)(void); - void (*trap_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_oem - oem platform specific customizing functions -@@ -65,7 +65,7 @@ struct x86_init_irqs { - struct x86_init_oem { - void (*arch_setup)(void); - void (*banner)(void); --}; -+} __no_const; - - /** - * struct x86_init_mapping - platform specific initial kernel pagetable setup -@@ -76,7 +76,7 @@ struct x86_init_oem { - */ - struct x86_init_mapping { - void (*pagetable_reserve)(u64 start, u64 end); --}; -+} __no_const; - - /** - * struct x86_init_paging - platform specific paging functions -@@ -86,7 +86,7 @@ struct x86_init_mapping { - struct x86_init_paging { - void (*pagetable_setup_start)(pgd_t *base); - void (*pagetable_setup_done)(pgd_t *base); --}; -+} __no_const; - - /** - * struct x86_init_timers - platform specific timer setup -@@ -101,7 +101,7 @@ struct x86_init_timers { - void (*tsc_pre_init)(void); - void (*timer_init)(void); - void (*wallclock_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_iommu - platform specific iommu setup -@@ -109,7 +109,7 @@ struct x86_init_timers { - */ - struct x86_init_iommu { - int (*iommu_init)(void); --}; -+} __no_const; - - /** - * struct x86_init_pci - platform specific pci init functions -@@ -123,7 +123,7 @@ struct x86_init_pci { - int (*init)(void); - void (*init_irq)(void); - void (*fixup_irqs)(void); --}; -+} __no_const; - - /** - * struct x86_init_ops - functions for platform specific setup -@@ -139,7 +139,7 @@ struct x86_init_ops { - struct x86_init_timers timers; - struct x86_init_iommu iommu; - struct x86_init_pci pci; --}; -+} __no_const; - - /** - * struct x86_cpuinit_ops - platform specific cpu hotplug setups -@@ -147,7 +147,7 @@ struct x86_init_ops { - */ - struct x86_cpuinit_ops { - void (*setup_percpu_clockev)(void); --}; -+} __no_const; - - /** - * struct x86_platform_ops - platform specific runtime functions -@@ -166,7 +166,7 @@ struct x86_platform_ops { - bool (*is_untracked_pat_range)(u64 start, u64 end); - void (*nmi_init)(void); - int (*i8042_detect)(void); --}; -+} __no_const; - - struct pci_dev; - -@@ -174,7 +174,7 @@ struct x86_msi_ops { - int (*setup_msi_irqs)(struct pci_dev *dev, int nvec, int type); - void (*teardown_msi_irq)(unsigned int irq); - void (*teardown_msi_irqs)(struct pci_dev *dev); --}; -+} __no_const; - - extern struct x86_init_ops x86_init; - extern struct x86_cpuinit_ops x86_cpuinit; -diff -urNp linux-3.0.4/arch/x86/include/asm/xsave.h linux-3.0.4/arch/x86/include/asm/xsave.h ---- linux-3.0.4/arch/x86/include/asm/xsave.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/include/asm/xsave.h 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,11 @@ static inline int xsave_user(struct xsav - { - int err; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)buf < PAX_USER_SHADOW_BASE) -+ buf = (struct xsave_struct __user *)((void __user*)buf + PAX_USER_SHADOW_BASE); -+#endif -+ - /* - * Clear the xsave header first, so that reserved fields are - * initialized to zero. -@@ -100,6 +105,11 @@ static inline int xrestore_user(struct x - u32 lmask = mask; - u32 hmask = mask >> 32; - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if ((unsigned long)xstate < PAX_USER_SHADOW_BASE) -+ xstate = (struct xsave_struct *)((void *)xstate + PAX_USER_SHADOW_BASE); -+#endif -+ - __asm__ __volatile__("1: .byte " REX_PREFIX "0x0f,0xae,0x2f\n" - "2:\n" - ".section .fixup,\"ax\"\n" -diff -urNp linux-3.0.4/arch/x86/Kconfig linux-3.0.4/arch/x86/Kconfig ---- linux-3.0.4/arch/x86/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -229,7 +229,7 @@ config X86_HT - - config X86_32_LAZY_GS - def_bool y -- depends on X86_32 && !CC_STACKPROTECTOR -+ depends on X86_32 && !CC_STACKPROTECTOR && !PAX_MEMORY_UDEREF - - config ARCH_HWEIGHT_CFLAGS - string -@@ -1018,7 +1018,7 @@ choice - - config NOHIGHMEM - bool "off" -- depends on !X86_NUMAQ -+ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) - ---help--- - Linux can use up to 64 Gigabytes of physical memory on x86 systems. - However, the address space of 32-bit x86 processors is only 4 -@@ -1055,7 +1055,7 @@ config NOHIGHMEM - - config HIGHMEM4G - bool "4GB" -- depends on !X86_NUMAQ -+ depends on !X86_NUMAQ && !(PAX_PAGEEXEC && PAX_ENABLE_PAE) - ---help--- - Select this if you have a 32-bit processor and between 1 and 4 - gigabytes of physical RAM. -@@ -1109,7 +1109,7 @@ config PAGE_OFFSET - hex - default 0xB0000000 if VMSPLIT_3G_OPT - default 0x80000000 if VMSPLIT_2G -- default 0x78000000 if VMSPLIT_2G_OPT -+ default 0x70000000 if VMSPLIT_2G_OPT - default 0x40000000 if VMSPLIT_1G - default 0xC0000000 - depends on X86_32 -@@ -1453,7 +1453,7 @@ config ARCH_USES_PG_UNCACHED - - config EFI - bool "EFI runtime service support" -- depends on ACPI -+ depends on ACPI && !PAX_KERNEXEC - ---help--- - This enables the kernel to use EFI runtime services that are - available (such as the EFI variable services). -@@ -1483,6 +1483,7 @@ config SECCOMP - - config CC_STACKPROTECTOR - bool "Enable -fstack-protector buffer overflow detection (EXPERIMENTAL)" -+ depends on X86_64 || !PAX_MEMORY_UDEREF - ---help--- - This option turns on the -fstack-protector GCC feature. This - feature puts, at the beginning of functions, a canary value on -@@ -1540,6 +1541,7 @@ config KEXEC_JUMP - config PHYSICAL_START - hex "Physical address where the kernel is loaded" if (EXPERT || CRASH_DUMP) - default "0x1000000" -+ range 0x400000 0x40000000 - ---help--- - This gives the physical address where the kernel is loaded. - -@@ -1603,6 +1605,7 @@ config X86_NEED_RELOCS - config PHYSICAL_ALIGN - hex "Alignment value to which kernel should be aligned" if X86_32 - default "0x1000000" -+ range 0x400000 0x1000000 if PAX_KERNEXEC - range 0x2000 0x1000000 - ---help--- - This value puts the alignment restrictions on physical address -@@ -1634,9 +1637,10 @@ config HOTPLUG_CPU - Say N if you want to disable CPU hotplug. - - config COMPAT_VDSO -- def_bool y -+ def_bool n - prompt "Compat VDSO support" - depends on X86_32 || IA32_EMULATION -+ depends on !PAX_NOEXEC && !PAX_MEMORY_UDEREF - ---help--- - Map the 32-bit VDSO to the predictable old-style address too. - -diff -urNp linux-3.0.4/arch/x86/Kconfig.cpu linux-3.0.4/arch/x86/Kconfig.cpu ---- linux-3.0.4/arch/x86/Kconfig.cpu 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig.cpu 2011-08-23 21:47:55.000000000 -0400 -@@ -338,7 +338,7 @@ config X86_PPRO_FENCE - - config X86_F00F_BUG - def_bool y -- depends on M586MMX || M586TSC || M586 || M486 || M386 -+ depends on (M586MMX || M586TSC || M586 || M486 || M386) && !PAX_KERNEXEC - - config X86_INVD_BUG - def_bool y -@@ -362,7 +362,7 @@ config X86_POPAD_OK - - config X86_ALIGNMENT_16 - def_bool y -- depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || MELAN || MK6 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 -+ depends on MWINCHIP3D || MWINCHIPC6 || MCYRIXIII || X86_ELAN || MK8 || MK7 || MK6 || MCORE2 || MPENTIUM4 || MPENTIUMIII || MPENTIUMII || M686 || M586MMX || M586TSC || M586 || M486 || MVIAC3_2 || MGEODEGX1 - - config X86_INTEL_USERCOPY - def_bool y -@@ -408,7 +408,7 @@ config X86_CMPXCHG64 - # generates cmov. - config X86_CMOV - def_bool y -- depends on (MK8 || MK7 || MCORE2 || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) -+ depends on (MK8 || MK7 || MCORE2 || MPSC || MPENTIUM4 || MPENTIUMM || MPENTIUMIII || MPENTIUMII || M686 || MVIAC3_2 || MVIAC7 || MCRUSOE || MEFFICEON || X86_64 || MATOM || MGEODE_LX) - - config X86_MINIMUM_CPU_FAMILY - int -diff -urNp linux-3.0.4/arch/x86/Kconfig.debug linux-3.0.4/arch/x86/Kconfig.debug ---- linux-3.0.4/arch/x86/Kconfig.debug 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Kconfig.debug 2011-08-23 21:47:55.000000000 -0400 -@@ -81,7 +81,7 @@ config X86_PTDUMP - config DEBUG_RODATA - bool "Write protect kernel read-only data structures" - default y -- depends on DEBUG_KERNEL -+ depends on DEBUG_KERNEL && BROKEN - ---help--- - Mark the kernel read-only data as write-protected in the pagetables, - in order to catch accidental (and incorrect) writes to such const -@@ -99,7 +99,7 @@ config DEBUG_RODATA_TEST - - config DEBUG_SET_MODULE_RONX - bool "Set loadable kernel module data as NX and text as RO" -- depends on MODULES -+ depends on MODULES && BROKEN - ---help--- - This option helps catch unintended modifications to loadable - kernel module's text and read-only data. It also prevents execution -diff -urNp linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile ---- linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/realmode/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -41,6 +41,9 @@ KBUILD_CFLAGS := $(LINUXINCLUDE) -g -Os - $(call cc-option, -fno-stack-protector) \ - $(call cc-option, -mpreferred-stack-boundary=2) - KBUILD_CFLAGS += $(call cc-option, -m32) -+ifdef CONSTIFY_PLUGIN -+KBUILD_CFLAGS += $(CONSTIFY_PLUGIN) -fplugin-arg-constify_plugin-no-constify -+endif - KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ - GCOV_PROFILE := n - -diff -urNp linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S ---- linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/realmode/wakeup.S 2011-08-23 21:48:14.000000000 -0400 -@@ -108,6 +108,9 @@ wakeup_code: - /* Do any other stuff... */ - - #ifndef CONFIG_64BIT -+ /* Recheck NX bit overrides (64bit path does this in trampoline */ -+ call verify_cpu -+ - /* This could also be done in C code... */ - movl pmode_cr3, %eax - movl %eax, %cr3 -@@ -131,6 +134,7 @@ wakeup_code: - movl pmode_cr0, %eax - movl %eax, %cr0 - jmp pmode_return -+# include "../../verify_cpu.S" - #else - pushw $0 - pushw trampoline_segment -diff -urNp linux-3.0.4/arch/x86/kernel/acpi/sleep.c linux-3.0.4/arch/x86/kernel/acpi/sleep.c ---- linux-3.0.4/arch/x86/kernel/acpi/sleep.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/sleep.c 2011-08-23 21:47:55.000000000 -0400 -@@ -94,8 +94,12 @@ int acpi_suspend_lowlevel(void) - header->trampoline_segment = trampoline_address() >> 4; - #ifdef CONFIG_SMP - stack_start = (unsigned long)temp_stack + sizeof(temp_stack); -+ -+ pax_open_kernel(); - early_gdt_descr.address = - (unsigned long)get_cpu_gdt_table(smp_processor_id()); -+ pax_close_kernel(); -+ - initial_gs = per_cpu_offset(smp_processor_id()); - #endif - initial_code = (unsigned long)wakeup_long64; -diff -urNp linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S ---- linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/acpi/wakeup_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -30,13 +30,11 @@ wakeup_pmode_return: - # and restore the stack ... but you need gdt for this to work - movl saved_context_esp, %esp - -- movl %cs:saved_magic, %eax -- cmpl $0x12345678, %eax -+ cmpl $0x12345678, saved_magic - jne bogus_magic - - # jump to place where we left off -- movl saved_eip, %eax -- jmp *%eax -+ jmp *(saved_eip) - - bogus_magic: - jmp bogus_magic -diff -urNp linux-3.0.4/arch/x86/kernel/alternative.c linux-3.0.4/arch/x86/kernel/alternative.c ---- linux-3.0.4/arch/x86/kernel/alternative.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/alternative.c 2011-08-23 21:47:55.000000000 -0400 -@@ -313,7 +313,7 @@ static void alternatives_smp_lock(const - if (!*poff || ptr < text || ptr >= text_end) - continue; - /* turn DS segment override prefix into lock prefix */ -- if (*ptr == 0x3e) -+ if (*ktla_ktva(ptr) == 0x3e) - text_poke(ptr, ((unsigned char []){0xf0}), 1); - }; - mutex_unlock(&text_mutex); -@@ -334,7 +334,7 @@ static void alternatives_smp_unlock(cons - if (!*poff || ptr < text || ptr >= text_end) - continue; - /* turn lock prefix into DS segment override prefix */ -- if (*ptr == 0xf0) -+ if (*ktla_ktva(ptr) == 0xf0) - text_poke(ptr, ((unsigned char []){0x3E}), 1); - }; - mutex_unlock(&text_mutex); -@@ -503,7 +503,7 @@ void __init_or_module apply_paravirt(str - - BUG_ON(p->len > MAX_PATCH_LEN); - /* prep the buffer with the original instructions */ -- memcpy(insnbuf, p->instr, p->len); -+ memcpy(insnbuf, ktla_ktva(p->instr), p->len); - used = pv_init_ops.patch(p->instrtype, p->clobbers, insnbuf, - (unsigned long)p->instr, p->len); - -@@ -571,7 +571,7 @@ void __init alternative_instructions(voi - if (smp_alt_once) - free_init_pages("SMP alternatives", - (unsigned long)__smp_locks, -- (unsigned long)__smp_locks_end); -+ PAGE_ALIGN((unsigned long)__smp_locks_end)); - - restart_nmi(); - } -@@ -588,13 +588,17 @@ void __init alternative_instructions(voi - * instructions. And on the local CPU you need to be protected again NMI or MCE - * handlers seeing an inconsistent instruction while you patch. - */ --void *__init_or_module text_poke_early(void *addr, const void *opcode, -+void *__kprobes text_poke_early(void *addr, const void *opcode, - size_t len) - { - unsigned long flags; - local_irq_save(flags); -- memcpy(addr, opcode, len); -+ -+ pax_open_kernel(); -+ memcpy(ktla_ktva(addr), opcode, len); - sync_core(); -+ pax_close_kernel(); -+ - local_irq_restore(flags); - /* Could also do a CLFLUSH here to speed up CPU recovery; but - that causes hangs on some VIA CPUs. */ -@@ -616,36 +620,22 @@ void *__init_or_module text_poke_early(v - */ - void *__kprobes text_poke(void *addr, const void *opcode, size_t len) - { -- unsigned long flags; -- char *vaddr; -+ unsigned char *vaddr = ktla_ktva(addr); - struct page *pages[2]; -- int i; -+ size_t i; - - if (!core_kernel_text((unsigned long)addr)) { -- pages[0] = vmalloc_to_page(addr); -- pages[1] = vmalloc_to_page(addr + PAGE_SIZE); -+ pages[0] = vmalloc_to_page(vaddr); -+ pages[1] = vmalloc_to_page(vaddr + PAGE_SIZE); - } else { -- pages[0] = virt_to_page(addr); -+ pages[0] = virt_to_page(vaddr); - WARN_ON(!PageReserved(pages[0])); -- pages[1] = virt_to_page(addr + PAGE_SIZE); -+ pages[1] = virt_to_page(vaddr + PAGE_SIZE); - } - BUG_ON(!pages[0]); -- local_irq_save(flags); -- set_fixmap(FIX_TEXT_POKE0, page_to_phys(pages[0])); -- if (pages[1]) -- set_fixmap(FIX_TEXT_POKE1, page_to_phys(pages[1])); -- vaddr = (char *)fix_to_virt(FIX_TEXT_POKE0); -- memcpy(&vaddr[(unsigned long)addr & ~PAGE_MASK], opcode, len); -- clear_fixmap(FIX_TEXT_POKE0); -- if (pages[1]) -- clear_fixmap(FIX_TEXT_POKE1); -- local_flush_tlb(); -- sync_core(); -- /* Could also do a CLFLUSH here to speed up CPU recovery; but -- that causes hangs on some VIA CPUs. */ -+ text_poke_early(addr, opcode, len); - for (i = 0; i < len; i++) -- BUG_ON(((char *)addr)[i] != ((char *)opcode)[i]); -- local_irq_restore(flags); -+ BUG_ON((vaddr)[i] != ((const unsigned char *)opcode)[i]); - return addr; - } - -diff -urNp linux-3.0.4/arch/x86/kernel/apic/apic.c linux-3.0.4/arch/x86/kernel/apic/apic.c ---- linux-3.0.4/arch/x86/kernel/apic/apic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apic/apic.c 2011-08-23 21:48:14.000000000 -0400 -@@ -173,7 +173,7 @@ int first_system_vector = 0xfe; - /* - * Debug level, exported for io_apic.c - */ --unsigned int apic_verbosity; -+int apic_verbosity; - - int pic_mode; - -@@ -1834,7 +1834,7 @@ void smp_error_interrupt(struct pt_regs - apic_write(APIC_ESR, 0); - v1 = apic_read(APIC_ESR); - ack_APIC_irq(); -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - - apic_printk(APIC_DEBUG, KERN_DEBUG "APIC error on CPU%d: %02x(%02x)", - smp_processor_id(), v0 , v1); -@@ -2190,6 +2190,8 @@ static int __cpuinit apic_cluster_num(vo - u16 *bios_cpu_apicid; - DECLARE_BITMAP(clustermap, NUM_APIC_CLUSTERS); - -+ pax_track_stack(); -+ - bios_cpu_apicid = early_per_cpu_ptr(x86_bios_cpu_apicid); - bitmap_zero(clustermap, NUM_APIC_CLUSTERS); - -diff -urNp linux-3.0.4/arch/x86/kernel/apic/io_apic.c linux-3.0.4/arch/x86/kernel/apic/io_apic.c ---- linux-3.0.4/arch/x86/kernel/apic/io_apic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apic/io_apic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1028,7 +1028,7 @@ int IO_APIC_get_PCI_irq_vector(int bus, - } - EXPORT_SYMBOL(IO_APIC_get_PCI_irq_vector); - --void lock_vector_lock(void) -+void lock_vector_lock(void) __acquires(vector_lock) - { - /* Used to the online set of cpus does not change - * during assign_irq_vector. -@@ -1036,7 +1036,7 @@ void lock_vector_lock(void) - raw_spin_lock(&vector_lock); - } - --void unlock_vector_lock(void) -+void unlock_vector_lock(void) __releases(vector_lock) - { - raw_spin_unlock(&vector_lock); - } -@@ -2364,7 +2364,7 @@ static void ack_apic_edge(struct irq_dat - ack_APIC_irq(); - } - --atomic_t irq_mis_count; -+atomic_unchecked_t irq_mis_count; - - /* - * IO-APIC versions below 0x20 don't support EOI register. -@@ -2472,7 +2472,7 @@ static void ack_apic_level(struct irq_da - * at the cpu. - */ - if (!(v & (1 << (i & 0x1f)))) { -- atomic_inc(&irq_mis_count); -+ atomic_inc_unchecked(&irq_mis_count); - - eoi_ioapic_irq(irq, cfg); - } -diff -urNp linux-3.0.4/arch/x86/kernel/apm_32.c linux-3.0.4/arch/x86/kernel/apm_32.c ---- linux-3.0.4/arch/x86/kernel/apm_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/apm_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -413,7 +413,7 @@ static DEFINE_MUTEX(apm_mutex); - * This is for buggy BIOS's that refer to (real mode) segment 0x40 - * even though they are called in protected mode. - */ --static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, -+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, - (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); - - static const char driver_version[] = "1.16ac"; /* no spaces */ -@@ -591,7 +591,10 @@ static long __apm_bios_call(void *_call) - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - apm_irq_save(flags); - APM_DO_SAVE_SEGS; -@@ -600,7 +603,11 @@ static long __apm_bios_call(void *_call) - &call->esi); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - - return call->eax & 0xff; -@@ -667,7 +674,10 @@ static long __apm_bios_call_simple(void - BUG_ON(cpu != 0); - gdt = get_cpu_gdt_table(cpu); - save_desc_40 = gdt[0x40 / 8]; -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - apm_irq_save(flags); - APM_DO_SAVE_SEGS; -@@ -675,7 +685,11 @@ static long __apm_bios_call_simple(void - &call->eax); - APM_DO_RESTORE_SEGS; - apm_irq_restore(flags); -+ -+ pax_open_kernel(); - gdt[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - return error; - } -@@ -2349,12 +2363,15 @@ static int __init apm_init(void) - * code to that CPU. - */ - gdt = get_cpu_gdt_table(0); -+ -+ pax_open_kernel(); - set_desc_base(&gdt[APM_CS >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.cseg << 4)); - set_desc_base(&gdt[APM_CS_16 >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.cseg_16 << 4)); - set_desc_base(&gdt[APM_DS >> 3], - (unsigned long)__va((unsigned long)apm_info.bios.dseg << 4)); -+ pax_close_kernel(); - - proc_create("apm", 0, NULL, &apm_file_ops); - -diff -urNp linux-3.0.4/arch/x86/kernel/asm-offsets_64.c linux-3.0.4/arch/x86/kernel/asm-offsets_64.c ---- linux-3.0.4/arch/x86/kernel/asm-offsets_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/asm-offsets_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -69,6 +69,7 @@ int main(void) - BLANK(); - #undef ENTRY - -+ DEFINE(TSS_size, sizeof(struct tss_struct)); - OFFSET(TSS_ist, tss_struct, x86_tss.ist); - BLANK(); - -diff -urNp linux-3.0.4/arch/x86/kernel/asm-offsets.c linux-3.0.4/arch/x86/kernel/asm-offsets.c ---- linux-3.0.4/arch/x86/kernel/asm-offsets.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/asm-offsets.c 2011-08-23 21:47:55.000000000 -0400 -@@ -33,6 +33,8 @@ void common(void) { - OFFSET(TI_status, thread_info, status); - OFFSET(TI_addr_limit, thread_info, addr_limit); - OFFSET(TI_preempt_count, thread_info, preempt_count); -+ OFFSET(TI_lowest_stack, thread_info, lowest_stack); -+ DEFINE(TI_task_thread_sp0, offsetof(struct task_struct, thread.sp0) - offsetof(struct task_struct, tinfo)); - - BLANK(); - OFFSET(crypto_tfm_ctx_offset, crypto_tfm, __crt_ctx); -@@ -53,8 +55,26 @@ void common(void) { - OFFSET(PV_CPU_irq_enable_sysexit, pv_cpu_ops, irq_enable_sysexit); - OFFSET(PV_CPU_read_cr0, pv_cpu_ops, read_cr0); - OFFSET(PV_MMU_read_cr2, pv_mmu_ops, read_cr2); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ OFFSET(PV_CPU_write_cr0, pv_cpu_ops, write_cr0); -+#endif -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ OFFSET(PV_MMU_read_cr3, pv_mmu_ops, read_cr3); -+ OFFSET(PV_MMU_write_cr3, pv_mmu_ops, write_cr3); -+#ifdef CONFIG_X86_64 -+ OFFSET(PV_MMU_set_pgd_batched, pv_mmu_ops, set_pgd_batched); -+#endif - #endif - -+#endif -+ -+ BLANK(); -+ DEFINE(PAGE_SIZE_asm, PAGE_SIZE); -+ DEFINE(PAGE_SHIFT_asm, PAGE_SHIFT); -+ DEFINE(THREAD_SIZE_asm, THREAD_SIZE); -+ - #ifdef CONFIG_XEN - BLANK(); - OFFSET(XEN_vcpu_info_mask, vcpu_info, evtchn_upcall_mask); -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/amd.c linux-3.0.4/arch/x86/kernel/cpu/amd.c ---- linux-3.0.4/arch/x86/kernel/cpu/amd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/amd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -647,7 +647,7 @@ static unsigned int __cpuinit amd_size_c - unsigned int size) - { - /* AMD errata T13 (order #21922) */ -- if ((c->x86 == 6)) { -+ if (c->x86 == 6) { - /* Duron Rev A0 */ - if (c->x86_model == 3 && c->x86_mask == 0) - size = 64; -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/common.c linux-3.0.4/arch/x86/kernel/cpu/common.c ---- linux-3.0.4/arch/x86/kernel/cpu/common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/common.c 2011-08-23 21:47:55.000000000 -0400 -@@ -83,60 +83,6 @@ static const struct cpu_dev __cpuinitcon - - static const struct cpu_dev *this_cpu __cpuinitdata = &default_cpu; - --DEFINE_PER_CPU_PAGE_ALIGNED(struct gdt_page, gdt_page) = { .gdt = { --#ifdef CONFIG_X86_64 -- /* -- * We need valid kernel segments for data and code in long mode too -- * IRET will check the segment types kkeil 2000/10/28 -- * Also sysret mandates a special GDT layout -- * -- * TLS descriptors are currently at a different place compared to i386. -- * Hopefully nobody expects them at a fixed place (Wine?) -- */ -- [GDT_ENTRY_KERNEL32_CS] = GDT_ENTRY_INIT(0xc09b, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xa09b, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc093, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER32_CS] = GDT_ENTRY_INIT(0xc0fb, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f3, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xa0fb, 0, 0xfffff), --#else -- [GDT_ENTRY_KERNEL_CS] = GDT_ENTRY_INIT(0xc09a, 0, 0xfffff), -- [GDT_ENTRY_KERNEL_DS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_CS] = GDT_ENTRY_INIT(0xc0fa, 0, 0xfffff), -- [GDT_ENTRY_DEFAULT_USER_DS] = GDT_ENTRY_INIT(0xc0f2, 0, 0xfffff), -- /* -- * Segments used for calling PnP BIOS have byte granularity. -- * They code segments and data segments have fixed 64k limits, -- * the transfer segment sizes are set at run time. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_PNPBIOS_CS32] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), -- /* 16-bit code */ -- [GDT_ENTRY_PNPBIOS_CS16] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_DS] = GDT_ENTRY_INIT(0x0092, 0, 0xffff), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS1] = GDT_ENTRY_INIT(0x0092, 0, 0), -- /* 16-bit data */ -- [GDT_ENTRY_PNPBIOS_TS2] = GDT_ENTRY_INIT(0x0092, 0, 0), -- /* -- * The APM segments have byte granularity and their bases -- * are set at run time. All have 64k limits. -- */ -- /* 32-bit code */ -- [GDT_ENTRY_APMBIOS_BASE] = GDT_ENTRY_INIT(0x409a, 0, 0xffff), -- /* 16-bit code */ -- [GDT_ENTRY_APMBIOS_BASE+1] = GDT_ENTRY_INIT(0x009a, 0, 0xffff), -- /* data */ -- [GDT_ENTRY_APMBIOS_BASE+2] = GDT_ENTRY_INIT(0x4092, 0, 0xffff), -- -- [GDT_ENTRY_ESPFIX_SS] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- [GDT_ENTRY_PERCPU] = GDT_ENTRY_INIT(0xc092, 0, 0xfffff), -- GDT_STACK_CANARY_INIT --#endif --} }; --EXPORT_PER_CPU_SYMBOL_GPL(gdt_page); -- - static int __init x86_xsave_setup(char *s) - { - setup_clear_cpu_cap(X86_FEATURE_XSAVE); -@@ -371,7 +317,7 @@ void switch_to_new_gdt(int cpu) - { - struct desc_ptr gdt_descr; - -- gdt_descr.address = (long)get_cpu_gdt_table(cpu); -+ gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - /* Reload the per-cpu base */ -@@ -840,6 +786,10 @@ static void __cpuinit identify_cpu(struc - /* Filter out anything that depends on CPUID levels we don't have */ - filter_cpuid_features(c, true); - -+#if defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_KERNEXEC) || (defined(CONFIG_PAX_MEMORY_UDEREF) && defined(CONFIG_X86_32)) -+ setup_clear_cpu_cap(X86_FEATURE_SEP); -+#endif -+ - /* If the model name is still unset, do table lookup. */ - if (!c->x86_model_id[0]) { - const char *p; -@@ -1019,6 +969,9 @@ static __init int setup_disablecpuid(cha - } - __setup("clearcpuid=", setup_disablecpuid); - -+DEFINE_PER_CPU(struct thread_info *, current_tinfo) = &init_task.tinfo; -+EXPORT_PER_CPU_SYMBOL(current_tinfo); -+ - #ifdef CONFIG_X86_64 - struct desc_ptr idt_descr = { NR_VECTORS * 16 - 1, (unsigned long) idt_table }; - -@@ -1034,7 +987,7 @@ DEFINE_PER_CPU(struct task_struct *, cur - EXPORT_PER_CPU_SYMBOL(current_task); - - DEFINE_PER_CPU(unsigned long, kernel_stack) = -- (unsigned long)&init_thread_union - KERNEL_STACK_OFFSET + THREAD_SIZE; -+ (unsigned long)&init_thread_union - 16 + THREAD_SIZE; - EXPORT_PER_CPU_SYMBOL(kernel_stack); - - DEFINE_PER_CPU(char *, irq_stack_ptr) = -@@ -1099,7 +1052,7 @@ struct pt_regs * __cpuinit idle_regs(str - { - memset(regs, 0, sizeof(struct pt_regs)); - regs->fs = __KERNEL_PERCPU; -- regs->gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, regs->gs); - - return regs; - } -@@ -1154,7 +1107,7 @@ void __cpuinit cpu_init(void) - int i; - - cpu = stack_smp_processor_id(); -- t = &per_cpu(init_tss, cpu); -+ t = init_tss + cpu; - oist = &per_cpu(orig_ist, cpu); - - #ifdef CONFIG_NUMA -@@ -1180,7 +1133,7 @@ void __cpuinit cpu_init(void) - switch_to_new_gdt(cpu); - loadsegment(fs, 0); - -- load_idt((const struct desc_ptr *)&idt_descr); -+ load_idt(&idt_descr); - - memset(me->thread.tls_array, 0, GDT_ENTRY_TLS_ENTRIES * 8); - syscall_init(); -@@ -1189,7 +1142,6 @@ void __cpuinit cpu_init(void) - wrmsrl(MSR_KERNEL_GS_BASE, 0); - barrier(); - -- x86_configure_nx(); - if (cpu != 0) - enable_x2apic(); - -@@ -1243,7 +1195,7 @@ void __cpuinit cpu_init(void) - { - int cpu = smp_processor_id(); - struct task_struct *curr = current; -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - struct thread_struct *thread = &curr->thread; - - if (cpumask_test_and_set_cpu(cpu, cpu_initialized_mask)) { -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/intel.c linux-3.0.4/arch/x86/kernel/cpu/intel.c ---- linux-3.0.4/arch/x86/kernel/cpu/intel.c 2011-08-29 23:26:13.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/intel.c 2011-08-29 23:30:14.000000000 -0400 -@@ -172,7 +172,7 @@ static void __cpuinit trap_init_f00f_bug - * Update the IDT descriptor and reload the IDT so that - * it uses the read-only mapped virtual address. - */ -- idt_descr.address = fix_to_virt(FIX_F00F_IDT); -+ idt_descr.address = (struct desc_struct *)fix_to_virt(FIX_F00F_IDT); - load_idt(&idt_descr); - } - #endif -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/Makefile linux-3.0.4/arch/x86/kernel/cpu/Makefile ---- linux-3.0.4/arch/x86/kernel/cpu/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -8,10 +8,6 @@ CFLAGS_REMOVE_common.o = -pg - CFLAGS_REMOVE_perf_event.o = -pg - endif - --# Make sure load_percpu_segment has no stackprotector --nostackp := $(call cc-option, -fno-stack-protector) --CFLAGS_common.o := $(nostackp) -- - obj-y := intel_cacheinfo.o scattered.o topology.o - obj-y += proc.o capflags.o powerflags.o common.o - obj-y += vmware.o hypervisor.o sched.o mshyperv.o -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c ---- linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce.c 2011-08-23 21:47:55.000000000 -0400 -@@ -46,6 +46,7 @@ - #include - #include - #include -+#include - - #include "mce-internal.h" - -@@ -208,7 +209,7 @@ static void print_mce(struct mce *m) - !(m->mcgstatus & MCG_STATUS_EIPV) ? " !INEXACT!" : "", - m->cs, m->ip); - -- if (m->cs == __KERNEL_CS) -+ if (m->cs == __KERNEL_CS || m->cs == __KERNEXEC_KERNEL_CS) - print_symbol("{%s}", m->ip); - pr_cont("\n"); - } -@@ -236,10 +237,10 @@ static void print_mce(struct mce *m) - - #define PANIC_TIMEOUT 5 /* 5 seconds */ - --static atomic_t mce_paniced; -+static atomic_unchecked_t mce_paniced; - - static int fake_panic; --static atomic_t mce_fake_paniced; -+static atomic_unchecked_t mce_fake_paniced; - - /* Panic in progress. Enable interrupts and wait for final IPI */ - static void wait_for_panic(void) -@@ -263,7 +264,7 @@ static void mce_panic(char *msg, struct - /* - * Make sure only one CPU runs in machine check panic - */ -- if (atomic_inc_return(&mce_paniced) > 1) -+ if (atomic_inc_return_unchecked(&mce_paniced) > 1) - wait_for_panic(); - barrier(); - -@@ -271,7 +272,7 @@ static void mce_panic(char *msg, struct - console_verbose(); - } else { - /* Don't log too much for fake panic */ -- if (atomic_inc_return(&mce_fake_paniced) > 1) -+ if (atomic_inc_return_unchecked(&mce_fake_paniced) > 1) - return; - } - /* First print corrected ones that are still unlogged */ -@@ -638,7 +639,7 @@ static int mce_timed_out(u64 *t) - * might have been modified by someone else. - */ - rmb(); -- if (atomic_read(&mce_paniced)) -+ if (atomic_read_unchecked(&mce_paniced)) - wait_for_panic(); - if (!monarch_timeout) - goto out; -@@ -1452,14 +1453,14 @@ void __cpuinit mcheck_cpu_init(struct cp - */ - - static DEFINE_SPINLOCK(mce_state_lock); --static int open_count; /* #times opened */ -+static local_t open_count; /* #times opened */ - static int open_exclu; /* already open exclusive? */ - - static int mce_open(struct inode *inode, struct file *file) - { - spin_lock(&mce_state_lock); - -- if (open_exclu || (open_count && (file->f_flags & O_EXCL))) { -+ if (open_exclu || (local_read(&open_count) && (file->f_flags & O_EXCL))) { - spin_unlock(&mce_state_lock); - - return -EBUSY; -@@ -1467,7 +1468,7 @@ static int mce_open(struct inode *inode, - - if (file->f_flags & O_EXCL) - open_exclu = 1; -- open_count++; -+ local_inc(&open_count); - - spin_unlock(&mce_state_lock); - -@@ -1478,7 +1479,7 @@ static int mce_release(struct inode *ino - { - spin_lock(&mce_state_lock); - -- open_count--; -+ local_dec(&open_count); - open_exclu = 0; - - spin_unlock(&mce_state_lock); -@@ -2163,7 +2164,7 @@ struct dentry *mce_get_debugfs_dir(void) - static void mce_reset(void) - { - cpu_missing = 0; -- atomic_set(&mce_fake_paniced, 0); -+ atomic_set_unchecked(&mce_fake_paniced, 0); - atomic_set(&mce_executing, 0); - atomic_set(&mce_callin, 0); - atomic_set(&global_nwo, 0); -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c ---- linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mcheck/mce-inject.c 2011-08-23 21:47:55.000000000 -0400 -@@ -215,7 +215,9 @@ static int inject_init(void) - if (!alloc_cpumask_var(&mce_inject_cpumask, GFP_KERNEL)) - return -ENOMEM; - printk(KERN_INFO "Machine check injector initialized\n"); -- mce_chrdev_ops.write = mce_write; -+ pax_open_kernel(); -+ *(void **)&mce_chrdev_ops.write = mce_write; -+ pax_close_kernel(); - register_die_notifier(&mce_raise_nb); - return 0; - } -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c ---- linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c 2011-08-29 23:26:13.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mtrr/main.c 2011-08-29 23:26:21.000000000 -0400 -@@ -62,7 +62,7 @@ static DEFINE_MUTEX(mtrr_mutex); - u64 size_or_mask, size_and_mask; - static bool mtrr_aps_delayed_init; - --static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM]; -+static const struct mtrr_ops *mtrr_ops[X86_VENDOR_NUM] __read_only; - - const struct mtrr_ops *mtrr_if; - -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h ---- linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/mtrr/mtrr.h 2011-08-26 19:49:56.000000000 -0400 -@@ -25,7 +25,7 @@ struct mtrr_ops { - int (*validate_add_page)(unsigned long base, unsigned long size, - unsigned int type); - int (*have_wrcomb)(void); --}; -+} __do_const; - - extern int generic_get_free_region(unsigned long base, unsigned long size, - int replace_reg); -diff -urNp linux-3.0.4/arch/x86/kernel/cpu/perf_event.c linux-3.0.4/arch/x86/kernel/cpu/perf_event.c ---- linux-3.0.4/arch/x86/kernel/cpu/perf_event.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/cpu/perf_event.c 2011-08-23 21:48:14.000000000 -0400 -@@ -781,6 +781,8 @@ static int x86_schedule_events(struct cp - int i, j, w, wmax, num = 0; - struct hw_perf_event *hwc; - -+ pax_track_stack(); -+ - bitmap_zero(used_mask, X86_PMC_IDX_MAX); - - for (i = 0; i < n; i++) { -@@ -1872,7 +1874,7 @@ perf_callchain_user(struct perf_callchai - break; - - perf_callchain_store(entry, frame.return_address); -- fp = frame.next_frame; -+ fp = (__force const void __user *)frame.next_frame; - } - } - -diff -urNp linux-3.0.4/arch/x86/kernel/crash.c linux-3.0.4/arch/x86/kernel/crash.c ---- linux-3.0.4/arch/x86/kernel/crash.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/crash.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ static void kdump_nmi_callback(int cpu, - regs = args->regs; - - #ifdef CONFIG_X86_32 -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - crash_fixup_ss_esp(&fixed_regs, regs); - regs = &fixed_regs; - } -diff -urNp linux-3.0.4/arch/x86/kernel/doublefault_32.c linux-3.0.4/arch/x86/kernel/doublefault_32.c ---- linux-3.0.4/arch/x86/kernel/doublefault_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/doublefault_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -11,7 +11,7 @@ - - #define DOUBLEFAULT_STACKSIZE (1024) - static unsigned long doublefault_stack[DOUBLEFAULT_STACKSIZE]; --#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE) -+#define STACK_START (unsigned long)(doublefault_stack+DOUBLEFAULT_STACKSIZE-2) - - #define ptr_ok(x) ((x) > PAGE_OFFSET && (x) < PAGE_OFFSET + MAXMEM) - -@@ -21,7 +21,7 @@ static void doublefault_fn(void) - unsigned long gdt, tss; - - store_gdt(&gdt_desc); -- gdt = gdt_desc.address; -+ gdt = (unsigned long)gdt_desc.address; - - printk(KERN_EMERG "PANIC: double fault, gdt at %08lx [%d bytes]\n", gdt, gdt_desc.size); - -@@ -58,10 +58,10 @@ struct tss_struct doublefault_tss __cach - /* 0x2 bit is always set */ - .flags = X86_EFLAGS_SF | 0x2, - .sp = STACK_START, -- .es = __USER_DS, -+ .es = __KERNEL_DS, - .cs = __KERNEL_CS, - .ss = __KERNEL_DS, -- .ds = __USER_DS, -+ .ds = __KERNEL_DS, - .fs = __KERNEL_PERCPU, - - .__cr3 = __pa_nodebug(swapper_pg_dir), -diff -urNp linux-3.0.4/arch/x86/kernel/dumpstack_32.c linux-3.0.4/arch/x86/kernel/dumpstack_32.c ---- linux-3.0.4/arch/x86/kernel/dumpstack_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -38,15 +38,13 @@ void dump_trace(struct task_struct *task - bp = stack_frame(task, regs); - - for (;;) { -- struct thread_info *context; -+ void *stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); - -- context = (struct thread_info *) -- ((unsigned long)stack & (~(THREAD_SIZE - 1))); -- bp = ops->walk_stack(context, stack, bp, ops, data, NULL, &graph); -+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); - -- stack = (unsigned long *)context->previous_esp; -- if (!stack) -+ if (stack_start == task_stack_page(task)) - break; -+ stack = *(unsigned long **)stack_start; - if (ops->stack(data, "IRQ") < 0) - break; - touch_nmi_watchdog(); -@@ -96,21 +94,22 @@ void show_registers(struct pt_regs *regs - * When in-kernel, we also print out the stack and code at the - * time of the fault.. - */ -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned int code_prologue = code_bytes * 43 / 64; - unsigned int code_len = code_bytes; - unsigned char c; - u8 *ip; -+ unsigned long cs_base = get_desc_base(&get_cpu_gdt_table(smp_processor_id())[(0xffff & regs->cs) >> 3]); - - printk(KERN_EMERG "Stack:\n"); - show_stack_log_lvl(NULL, regs, ®s->sp, 0, KERN_EMERG); - - printk(KERN_EMERG "Code: "); - -- ip = (u8 *)regs->ip - code_prologue; -+ ip = (u8 *)regs->ip - code_prologue + cs_base; - if (ip < (u8 *)PAGE_OFFSET || probe_kernel_address(ip, c)) { - /* try starting at IP */ -- ip = (u8 *)regs->ip; -+ ip = (u8 *)regs->ip + cs_base; - code_len = code_len - code_prologue + 1; - } - for (i = 0; i < code_len; i++, ip++) { -@@ -119,7 +118,7 @@ void show_registers(struct pt_regs *regs - printk(" Bad EIP value."); - break; - } -- if (ip == (u8 *)regs->ip) -+ if (ip == (u8 *)regs->ip + cs_base) - printk("<%02x> ", c); - else - printk("%02x ", c); -@@ -132,6 +131,7 @@ int is_valid_bugaddr(unsigned long ip) - { - unsigned short ud2; - -+ ip = ktla_ktva(ip); - if (ip < PAGE_OFFSET) - return 0; - if (probe_kernel_address((unsigned short *)ip, ud2)) -diff -urNp linux-3.0.4/arch/x86/kernel/dumpstack_64.c linux-3.0.4/arch/x86/kernel/dumpstack_64.c ---- linux-3.0.4/arch/x86/kernel/dumpstack_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -147,9 +147,9 @@ void dump_trace(struct task_struct *task - unsigned long *irq_stack_end = - (unsigned long *)per_cpu(irq_stack_ptr, cpu); - unsigned used = 0; -- struct thread_info *tinfo; - int graph = 0; - unsigned long dummy; -+ void *stack_start; - - if (!task) - task = current; -@@ -167,10 +167,10 @@ void dump_trace(struct task_struct *task - * current stack address. If the stacks consist of nested - * exceptions - */ -- tinfo = task_thread_info(task); - for (;;) { - char *id; - unsigned long *estack_end; -+ - estack_end = in_exception_stack(cpu, (unsigned long)stack, - &used, &id); - -@@ -178,7 +178,7 @@ void dump_trace(struct task_struct *task - if (ops->stack(data, id) < 0) - break; - -- bp = ops->walk_stack(tinfo, stack, bp, ops, -+ bp = ops->walk_stack(task, estack_end - EXCEPTION_STKSZ, stack, bp, ops, - data, estack_end, &graph); - ops->stack(data, ""); - /* -@@ -197,7 +197,7 @@ void dump_trace(struct task_struct *task - if (in_irq_stack(stack, irq_stack, irq_stack_end)) { - if (ops->stack(data, "IRQ") < 0) - break; -- bp = ops->walk_stack(tinfo, stack, bp, -+ bp = ops->walk_stack(task, irq_stack, stack, bp, - ops, data, irq_stack_end, &graph); - /* - * We link to the next stack (which would be -@@ -218,7 +218,8 @@ void dump_trace(struct task_struct *task - /* - * This handles the process stack: - */ -- bp = ops->walk_stack(tinfo, stack, bp, ops, data, NULL, &graph); -+ stack_start = (void *)((unsigned long)stack & ~(THREAD_SIZE-1)); -+ bp = ops->walk_stack(task, stack_start, stack, bp, ops, data, NULL, &graph); - put_cpu(); - } - EXPORT_SYMBOL(dump_trace); -diff -urNp linux-3.0.4/arch/x86/kernel/dumpstack.c linux-3.0.4/arch/x86/kernel/dumpstack.c ---- linux-3.0.4/arch/x86/kernel/dumpstack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/dumpstack.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2,6 +2,9 @@ - * Copyright (C) 1991, 1992 Linus Torvalds - * Copyright (C) 2000, 2001, 2002 Andi Kleen, SuSE Labs - */ -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+#define __INCLUDED_BY_HIDESYM 1 -+#endif - #include - #include - #include -@@ -35,9 +38,8 @@ void printk_address(unsigned long addres - static void - print_ftrace_graph_addr(unsigned long addr, void *data, - const struct stacktrace_ops *ops, -- struct thread_info *tinfo, int *graph) -+ struct task_struct *task, int *graph) - { -- struct task_struct *task = tinfo->task; - unsigned long ret_addr; - int index = task->curr_ret_stack; - -@@ -58,7 +60,7 @@ print_ftrace_graph_addr(unsigned long ad - static inline void - print_ftrace_graph_addr(unsigned long addr, void *data, - const struct stacktrace_ops *ops, -- struct thread_info *tinfo, int *graph) -+ struct task_struct *task, int *graph) - { } - #endif - -@@ -69,10 +71,8 @@ print_ftrace_graph_addr(unsigned long ad - * severe exception (double fault, nmi, stack fault, debug, mce) hardware stack - */ - --static inline int valid_stack_ptr(struct thread_info *tinfo, -- void *p, unsigned int size, void *end) -+static inline int valid_stack_ptr(void *t, void *p, unsigned int size, void *end) - { -- void *t = tinfo; - if (end) { - if (p < end && p >= (end-THREAD_SIZE)) - return 1; -@@ -83,14 +83,14 @@ static inline int valid_stack_ptr(struct - } - - unsigned long --print_context_stack(struct thread_info *tinfo, -+print_context_stack(struct task_struct *task, void *stack_start, - unsigned long *stack, unsigned long bp, - const struct stacktrace_ops *ops, void *data, - unsigned long *end, int *graph) - { - struct stack_frame *frame = (struct stack_frame *)bp; - -- while (valid_stack_ptr(tinfo, stack, sizeof(*stack), end)) { -+ while (valid_stack_ptr(stack_start, stack, sizeof(*stack), end)) { - unsigned long addr; - - addr = *stack; -@@ -102,7 +102,7 @@ print_context_stack(struct thread_info * - } else { - ops->address(data, addr, 0); - } -- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); -+ print_ftrace_graph_addr(addr, data, ops, task, graph); - } - stack++; - } -@@ -111,7 +111,7 @@ print_context_stack(struct thread_info * - EXPORT_SYMBOL_GPL(print_context_stack); - - unsigned long --print_context_stack_bp(struct thread_info *tinfo, -+print_context_stack_bp(struct task_struct *task, void *stack_start, - unsigned long *stack, unsigned long bp, - const struct stacktrace_ops *ops, void *data, - unsigned long *end, int *graph) -@@ -119,7 +119,7 @@ print_context_stack_bp(struct thread_inf - struct stack_frame *frame = (struct stack_frame *)bp; - unsigned long *ret_addr = &frame->return_address; - -- while (valid_stack_ptr(tinfo, ret_addr, sizeof(*ret_addr), end)) { -+ while (valid_stack_ptr(stack_start, ret_addr, sizeof(*ret_addr), end)) { - unsigned long addr = *ret_addr; - - if (!__kernel_text_address(addr)) -@@ -128,7 +128,7 @@ print_context_stack_bp(struct thread_inf - ops->address(data, addr, 1); - frame = frame->next_frame; - ret_addr = &frame->return_address; -- print_ftrace_graph_addr(addr, data, ops, tinfo, graph); -+ print_ftrace_graph_addr(addr, data, ops, task, graph); - } - - return (unsigned long)frame; -@@ -186,7 +186,7 @@ void dump_stack(void) - - bp = stack_frame(current, NULL); - printk("Pid: %d, comm: %.20s %s %s %.*s\n", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -@@ -222,6 +222,8 @@ unsigned __kprobes long oops_begin(void) - } - EXPORT_SYMBOL_GPL(oops_begin); - -+extern void gr_handle_kernel_exploit(void); -+ - void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr) - { - if (regs && kexec_should_crash(current)) -@@ -243,7 +245,10 @@ void __kprobes oops_end(unsigned long fl - panic("Fatal exception in interrupt"); - if (panic_on_oops) - panic("Fatal exception"); -- do_exit(signr); -+ -+ gr_handle_kernel_exploit(); -+ -+ do_group_exit(signr); - } - - int __kprobes __die(const char *str, struct pt_regs *regs, long err) -@@ -269,7 +274,7 @@ int __kprobes __die(const char *str, str - - show_registers(regs); - #ifdef CONFIG_X86_32 -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; - } else { -@@ -297,7 +302,7 @@ void die(const char *str, struct pt_regs - unsigned long flags = oops_begin(); - int sig = SIGSEGV; - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - report_bug(regs->ip, regs); - - if (__die(str, regs, err)) -diff -urNp linux-3.0.4/arch/x86/kernel/early_printk.c linux-3.0.4/arch/x86/kernel/early_printk.c ---- linux-3.0.4/arch/x86/kernel/early_printk.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/early_printk.c 2011-08-23 21:48:14.000000000 -0400 -@@ -7,6 +7,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -179,6 +180,8 @@ asmlinkage void early_printk(const char - int n; - va_list ap; - -+ pax_track_stack(); -+ - va_start(ap, fmt); - n = vscnprintf(buf, sizeof(buf), fmt, ap); - early_console->write(early_console, buf, n); -diff -urNp linux-3.0.4/arch/x86/kernel/entry_32.S linux-3.0.4/arch/x86/kernel/entry_32.S ---- linux-3.0.4/arch/x86/kernel/entry_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/entry_32.S 2011-08-30 18:23:52.000000000 -0400 -@@ -185,13 +185,146 @@ - /*CFI_REL_OFFSET gs, PT_GS*/ - .endm - .macro SET_KERNEL_GS reg -+ -+#ifdef CONFIG_CC_STACKPROTECTOR - movl $(__KERNEL_STACK_CANARY), \reg -+#elif defined(CONFIG_PAX_MEMORY_UDEREF) -+ movl $(__USER_DS), \reg -+#else -+ xorl \reg, \reg -+#endif -+ - movl \reg, %gs - .endm - - #endif /* CONFIG_X86_32_LAZY_GS */ - --.macro SAVE_ALL -+.macro pax_enter_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_enter_kernel -+#endif -+.endm -+ -+.macro pax_exit_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_exit_kernel -+#endif -+.endm -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ENTRY(pax_enter_kernel) -+#ifdef CONFIG_PARAVIRT -+ pushl %eax -+ pushl %ecx -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0) -+ mov %eax, %esi -+#else -+ mov %cr0, %esi -+#endif -+ bts $16, %esi -+ jnc 1f -+ mov %cs, %esi -+ cmp $__KERNEL_CS, %esi -+ jz 3f -+ ljmp $__KERNEL_CS, $3f -+1: ljmp $__KERNEXEC_KERNEL_CS, $2f -+2: -+#ifdef CONFIG_PARAVIRT -+ mov %esi, %eax -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0) -+#else -+ mov %esi, %cr0 -+#endif -+3: -+#ifdef CONFIG_PARAVIRT -+ popl %ecx -+ popl %eax -+#endif -+ ret -+ENDPROC(pax_enter_kernel) -+ -+ENTRY(pax_exit_kernel) -+#ifdef CONFIG_PARAVIRT -+ pushl %eax -+ pushl %ecx -+#endif -+ mov %cs, %esi -+ cmp $__KERNEXEC_KERNEL_CS, %esi -+ jnz 2f -+#ifdef CONFIG_PARAVIRT -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_read_cr0); -+ mov %eax, %esi -+#else -+ mov %cr0, %esi -+#endif -+ btr $16, %esi -+ ljmp $__KERNEL_CS, $1f -+1: -+#ifdef CONFIG_PARAVIRT -+ mov %esi, %eax -+ call PARA_INDIRECT(pv_cpu_ops+PV_CPU_write_cr0); -+#else -+ mov %esi, %cr0 -+#endif -+2: -+#ifdef CONFIG_PARAVIRT -+ popl %ecx -+ popl %eax -+#endif -+ ret -+ENDPROC(pax_exit_kernel) -+#endif -+ -+.macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+.endm -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+/* -+ * ebp: thread_info -+ * ecx, edx: can be clobbered -+ */ -+ENTRY(pax_erase_kstack) -+ pushl %edi -+ pushl %eax -+ -+ mov TI_lowest_stack(%ebp), %edi -+ mov $-0xBEEF, %eax -+ std -+ -+1: mov %edi, %ecx -+ and $THREAD_SIZE_asm - 1, %ecx -+ shr $2, %ecx -+ repne scasl -+ jecxz 2f -+ -+ cmp $2*16, %ecx -+ jc 2f -+ -+ mov $2*16, %ecx -+ repe scasl -+ jecxz 2f -+ jne 1b -+ -+2: cld -+ mov %esp, %ecx -+ sub %edi, %ecx -+ shr $2, %ecx -+ rep stosl -+ -+ mov TI_task_thread_sp0(%ebp), %edi -+ sub $128, %edi -+ mov %edi, TI_lowest_stack(%ebp) -+ -+ popl %eax -+ popl %edi -+ ret -+ENDPROC(pax_erase_kstack) -+#endif -+ -+.macro __SAVE_ALL _DS - cld - PUSH_GS - pushl_cfi %fs -@@ -214,7 +347,7 @@ - CFI_REL_OFFSET ecx, 0 - pushl_cfi %ebx - CFI_REL_OFFSET ebx, 0 -- movl $(__USER_DS), %edx -+ movl $\_DS, %edx - movl %edx, %ds - movl %edx, %es - movl $(__KERNEL_PERCPU), %edx -@@ -222,6 +355,15 @@ - SET_KERNEL_GS %edx - .endm - -+.macro SAVE_ALL -+#if defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF) -+ __SAVE_ALL __KERNEL_DS -+ pax_enter_kernel -+#else -+ __SAVE_ALL __USER_DS -+#endif -+.endm -+ - .macro RESTORE_INT_REGS - popl_cfi %ebx - CFI_RESTORE ebx -@@ -332,7 +474,15 @@ check_userspace: - movb PT_CS(%esp), %al - andl $(X86_EFLAGS_VM | SEGMENT_RPL_MASK), %eax - cmpl $USER_RPL, %eax -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jae resume_userspace -+ -+ PAX_EXIT_KERNEL -+ jmp resume_kernel -+#else - jb resume_kernel # not returning to v8086 or userspace -+#endif - - ENTRY(resume_userspace) - LOCKDEP_SYS_EXIT -@@ -344,7 +494,7 @@ ENTRY(resume_userspace) - andl $_TIF_WORK_MASK, %ecx # is there any work to be done on - # int/exception return? - jne work_pending -- jmp restore_all -+ jmp restore_all_pax - END(ret_from_exception) - - #ifdef CONFIG_PREEMPT -@@ -394,23 +544,34 @@ sysenter_past_esp: - /*CFI_REL_OFFSET cs, 0*/ - /* - * Push current_thread_info()->sysenter_return to the stack. -- * A tiny bit of offset fixup is necessary - 4*4 means the 4 words -- * pushed above; +8 corresponds to copy_thread's esp0 setting. - */ -- pushl_cfi ((TI_sysenter_return)-THREAD_SIZE+8+4*4)(%esp) -+ pushl_cfi $0 - CFI_REL_OFFSET eip, 0 - - pushl_cfi %eax - SAVE_ALL -+ GET_THREAD_INFO(%ebp) -+ movl TI_sysenter_return(%ebp),%ebp -+ movl %ebp,PT_EIP(%esp) - ENABLE_INTERRUPTS(CLBR_NONE) - - /* - * Load the potential sixth argument from user stack. - * Careful about security. - */ -+ movl PT_OLDESP(%esp),%ebp -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov PT_OLDSS(%esp),%ds -+1: movl %ds:(%ebp),%ebp -+ push %ss -+ pop %ds -+#else - cmpl $__PAGE_OFFSET-3,%ebp - jae syscall_fault - 1: movl (%ebp),%ebp -+#endif -+ - movl %ebp,PT_EBP(%esp) - .section __ex_table,"a" - .align 4 -@@ -433,12 +594,24 @@ sysenter_do_call: - testl $_TIF_ALLWORK_MASK, %ecx - jne sysexit_audit - sysenter_exit: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ pushl_cfi %eax -+ movl %esp, %eax -+ call pax_randomize_kstack -+ popl_cfi %eax -+#endif -+ -+ pax_erase_kstack -+ - /* if something modifies registers it must also disable sysexit */ - movl PT_EIP(%esp), %edx - movl PT_OLDESP(%esp), %ecx - xorl %ebp,%ebp - TRACE_IRQS_ON - 1: mov PT_FS(%esp), %fs -+2: mov PT_DS(%esp), %ds -+3: mov PT_ES(%esp), %es - PTGS_TO_GS - ENABLE_INTERRUPTS_SYSEXIT - -@@ -455,6 +628,9 @@ sysenter_audit: - movl %eax,%edx /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_I386,%eax /* 1st arg: audit arch */ - call audit_syscall_entry -+ -+ pax_erase_kstack -+ - pushl_cfi %ebx - movl PT_EAX(%esp),%eax /* reload syscall number */ - jmp sysenter_do_call -@@ -481,11 +657,17 @@ sysexit_audit: - - CFI_ENDPROC - .pushsection .fixup,"ax" --2: movl $0,PT_FS(%esp) -+4: movl $0,PT_FS(%esp) -+ jmp 1b -+5: movl $0,PT_DS(%esp) -+ jmp 1b -+6: movl $0,PT_ES(%esp) - jmp 1b - .section __ex_table,"a" - .align 4 -- .long 1b,2b -+ .long 1b,4b -+ .long 2b,5b -+ .long 3b,6b - .popsection - PTGS_TO_GS_EX - ENDPROC(ia32_sysenter_target) -@@ -518,6 +700,15 @@ syscall_exit: - testl $_TIF_ALLWORK_MASK, %ecx # current->work - jne syscall_exit_work - -+restore_all_pax: -+ -+#ifdef CONFIG_PAX_RANDKSTACK -+ movl %esp, %eax -+ call pax_randomize_kstack -+#endif -+ -+ pax_erase_kstack -+ - restore_all: - TRACE_IRQS_IRET - restore_all_notrace: -@@ -577,14 +768,34 @@ ldt_ss: - * compensating for the offset by changing to the ESPFIX segment with - * a base address that matches for the difference. - */ --#define GDT_ESPFIX_SS PER_CPU_VAR(gdt_page) + (GDT_ENTRY_ESPFIX_SS * 8) -+#define GDT_ESPFIX_SS (GDT_ENTRY_ESPFIX_SS * 8)(%ebx) - mov %esp, %edx /* load kernel esp */ - mov PT_OLDESP(%esp), %eax /* load userspace esp */ - mov %dx, %ax /* eax: new kernel esp */ - sub %eax, %edx /* offset (low word is 0) */ -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx -+ shll $PAGE_SHIFT_asm, %ebx -+ addl $cpu_gdt_table, %ebx -+#else -+ movl $cpu_gdt_table, %ebx -+#endif - shr $16, %edx -- mov %dl, GDT_ESPFIX_SS + 4 /* bits 16..23 */ -- mov %dh, GDT_ESPFIX_SS + 7 /* bits 24..31 */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %esi -+ btr $16, %esi -+ mov %esi, %cr0 -+#endif -+ -+ mov %dl, 4 + GDT_ESPFIX_SS /* bits 16..23 */ -+ mov %dh, 7 + GDT_ESPFIX_SS /* bits 24..31 */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ bts $16, %esi -+ mov %esi, %cr0 -+#endif -+ - pushl_cfi $__ESPFIX_SS - pushl_cfi %eax /* new kernel esp */ - /* Disable interrupts, but do not irqtrace this section: we -@@ -613,29 +824,23 @@ work_resched: - movl TI_flags(%ebp), %ecx - andl $_TIF_WORK_MASK, %ecx # is there any work to be done other - # than syscall tracing? -- jz restore_all -+ jz restore_all_pax - testb $_TIF_NEED_RESCHED, %cl - jnz work_resched - - work_notifysig: # deal with pending signals and - # notify-resume requests -+ movl %esp, %eax - #ifdef CONFIG_VM86 - testl $X86_EFLAGS_VM, PT_EFLAGS(%esp) -- movl %esp, %eax -- jne work_notifysig_v86 # returning to kernel-space or -+ jz 1f # returning to kernel-space or - # vm86-space -- xorl %edx, %edx -- call do_notify_resume -- jmp resume_userspace_sig - -- ALIGN --work_notifysig_v86: - pushl_cfi %ecx # save ti_flags for do_notify_resume - call save_v86_state # %eax contains pt_regs pointer - popl_cfi %ecx - movl %eax, %esp --#else -- movl %esp, %eax -+1: - #endif - xorl %edx, %edx - call do_notify_resume -@@ -648,6 +853,9 @@ syscall_trace_entry: - movl $-ENOSYS,PT_EAX(%esp) - movl %esp, %eax - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - /* What it returned is what we'll actually use. */ - cmpl $(nr_syscalls), %eax - jnae syscall_call -@@ -670,6 +878,10 @@ END(syscall_exit_work) - - RING0_INT_FRAME # can't unwind into user space anyway - syscall_fault: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ push %ss -+ pop %ds -+#endif - GET_THREAD_INFO(%ebp) - movl $-EFAULT,PT_EAX(%esp) - jmp resume_userspace -@@ -752,6 +964,36 @@ ptregs_clone: - CFI_ENDPROC - ENDPROC(ptregs_clone) - -+ ALIGN; -+ENTRY(kernel_execve) -+ CFI_STARTPROC -+ pushl_cfi %ebp -+ sub $PT_OLDSS+4,%esp -+ pushl_cfi %edi -+ pushl_cfi %ecx -+ pushl_cfi %eax -+ lea 3*4(%esp),%edi -+ mov $PT_OLDSS/4+1,%ecx -+ xorl %eax,%eax -+ rep stosl -+ popl_cfi %eax -+ popl_cfi %ecx -+ popl_cfi %edi -+ movl $X86_EFLAGS_IF,PT_EFLAGS(%esp) -+ pushl_cfi %esp -+ call sys_execve -+ add $4,%esp -+ CFI_ADJUST_CFA_OFFSET -4 -+ GET_THREAD_INFO(%ebp) -+ test %eax,%eax -+ jz syscall_exit -+ add $PT_OLDSS+4,%esp -+ CFI_ADJUST_CFA_OFFSET -PT_OLDSS-4 -+ popl_cfi %ebp -+ ret -+ CFI_ENDPROC -+ENDPROC(kernel_execve) -+ - .macro FIXUP_ESPFIX_STACK - /* - * Switch back for ESPFIX stack to the normal zerobased stack -@@ -761,8 +1003,15 @@ ENDPROC(ptregs_clone) - * normal stack and adjusts ESP with the matching offset. - */ - /* fixup the stack */ -- mov GDT_ESPFIX_SS + 4, %al /* bits 16..23 */ -- mov GDT_ESPFIX_SS + 7, %ah /* bits 24..31 */ -+#ifdef CONFIG_SMP -+ movl PER_CPU_VAR(cpu_number), %ebx -+ shll $PAGE_SHIFT_asm, %ebx -+ addl $cpu_gdt_table, %ebx -+#else -+ movl $cpu_gdt_table, %ebx -+#endif -+ mov 4 + GDT_ESPFIX_SS, %al /* bits 16..23 */ -+ mov 7 + GDT_ESPFIX_SS, %ah /* bits 24..31 */ - shl $16, %eax - addl %esp, %eax /* the adjusted stack pointer */ - pushl_cfi $__KERNEL_DS -@@ -1213,7 +1462,6 @@ return_to_handler: - jmp *%ecx - #endif - --.section .rodata,"a" - #include "syscall_table_32.S" - - syscall_table_size=(.-sys_call_table) -@@ -1259,9 +1507,12 @@ error_code: - movl $-1, PT_ORIG_EAX(%esp) # no syscall to restart - REG_TO_PTGS %ecx - SET_KERNEL_GS %ecx -- movl $(__USER_DS), %ecx -+ movl $(__KERNEL_DS), %ecx - movl %ecx, %ds - movl %ecx, %es -+ -+ pax_enter_kernel -+ - TRACE_IRQS_OFF - movl %esp,%eax # pt_regs pointer - call *%edi -@@ -1346,6 +1597,9 @@ nmi_stack_correct: - xorl %edx,%edx # zero error code - movl %esp,%eax # pt_regs pointer - call do_nmi -+ -+ pax_exit_kernel -+ - jmp restore_all_notrace - CFI_ENDPROC - -@@ -1382,6 +1636,9 @@ nmi_espfix_stack: - FIXUP_ESPFIX_STACK # %eax == %esp - xorl %edx,%edx # zero error code - call do_nmi -+ -+ pax_exit_kernel -+ - RESTORE_REGS - lss 12+4(%esp), %esp # back to espfix stack - CFI_ADJUST_CFA_OFFSET -24 -diff -urNp linux-3.0.4/arch/x86/kernel/entry_64.S linux-3.0.4/arch/x86/kernel/entry_64.S ---- linux-3.0.4/arch/x86/kernel/entry_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/entry_64.S 2011-08-26 19:49:56.000000000 -0400 -@@ -53,6 +53,7 @@ - #include - #include - #include -+#include - - /* Avoid __ASSEMBLER__'ifying just for this. */ - #include -@@ -176,6 +177,264 @@ ENTRY(native_usergs_sysret64) - ENDPROC(native_usergs_sysret64) - #endif /* CONFIG_PARAVIRT */ - -+ .macro ljmpq sel, off -+#if defined(CONFIG_MPSC) || defined(CONFIG_MCORE2) || defined (CONFIG_MATOM) -+ .byte 0x48; ljmp *1234f(%rip) -+ .pushsection .rodata -+ .align 16 -+ 1234: .quad \off; .word \sel -+ .popsection -+#else -+ pushq $\sel -+ pushq $\off -+ lretq -+#endif -+ .endm -+ -+ .macro pax_enter_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_enter_kernel -+#endif -+ .endm -+ -+ .macro pax_exit_kernel -+#ifdef CONFIG_PAX_KERNEXEC -+ call pax_exit_kernel -+#endif -+ .endm -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ENTRY(pax_enter_kernel) -+ pushq %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ GET_CR0_INTO_RDI -+ bts $16,%rdi -+ jnc 1f -+ mov %cs,%edi -+ cmp $__KERNEL_CS,%edi -+ jz 3f -+ ljmpq __KERNEL_CS,3f -+1: ljmpq __KERNEXEC_KERNEL_CS,2f -+2: SET_RDI_INTO_CR0 -+3: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI) -+#endif -+ -+ popq %rdi -+ retq -+ENDPROC(pax_enter_kernel) -+ -+ENTRY(pax_exit_kernel) -+ pushq %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ mov %cs,%rdi -+ cmp $__KERNEXEC_KERNEL_CS,%edi -+ jnz 2f -+ GET_CR0_INTO_RDI -+ btr $16,%rdi -+ ljmpq __KERNEL_CS,1f -+1: SET_RDI_INTO_CR0 -+2: -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI); -+#endif -+ -+ popq %rdi -+ retq -+ENDPROC(pax_exit_kernel) -+#endif -+ -+ .macro pax_enter_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_enter_kernel_user -+#endif -+ .endm -+ -+ .macro pax_exit_kernel_user -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ call pax_exit_kernel_user -+#endif -+#ifdef CONFIG_PAX_RANDKSTACK -+ push %rax -+ call pax_randomize_kstack -+ pop %rax -+#endif -+ .endm -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ENTRY(pax_enter_kernel_user) -+ pushq %rdi -+ pushq %rbx -+ -+#ifdef CONFIG_PARAVIRT -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+ GET_CR3_INTO_RDI -+ mov %rdi,%rbx -+ add $__START_KERNEL_map,%rbx -+ sub phys_base(%rip),%rbx -+ -+#ifdef CONFIG_PARAVIRT -+ pushq %rdi -+ cmpl $0, pv_info+PARAVIRT_enabled -+ jz 1f -+ i = 0 -+ .rept USER_PGD_PTRS -+ mov i*8(%rbx),%rsi -+ mov $0,%sil -+ lea i*8(%rbx),%rdi -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) -+ i = i + 1 -+ .endr -+ jmp 2f -+1: -+#endif -+ -+ i = 0 -+ .rept USER_PGD_PTRS -+ movb $0,i*8(%rbx) -+ i = i + 1 -+ .endr -+ -+#ifdef CONFIG_PARAVIRT -+2: popq %rdi -+#endif -+ SET_RDI_INTO_CR3 -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_RDI -+ bts $16,%rdi -+ SET_RDI_INTO_CR0 -+#endif -+ -+#ifdef CONFIG_PARAVIRT -+ PV_RESTORE_REGS(CLBR_RDI) -+#endif -+ -+ popq %rbx -+ popq %rdi -+ retq -+ENDPROC(pax_enter_kernel_user) -+ -+ENTRY(pax_exit_kernel_user) -+ push %rdi -+ -+#ifdef CONFIG_PARAVIRT -+ pushq %rbx -+ PV_SAVE_REGS(CLBR_RDI) -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ GET_CR0_INTO_RDI -+ btr $16,%rdi -+ SET_RDI_INTO_CR0 -+#endif -+ -+ GET_CR3_INTO_RDI -+ add $__START_KERNEL_map,%rdi -+ sub phys_base(%rip),%rdi -+ -+#ifdef CONFIG_PARAVIRT -+ cmpl $0, pv_info+PARAVIRT_enabled -+ jz 1f -+ mov %rdi,%rbx -+ i = 0 -+ .rept USER_PGD_PTRS -+ mov i*8(%rbx),%rsi -+ mov $0x67,%sil -+ lea i*8(%rbx),%rdi -+ call PARA_INDIRECT(pv_mmu_ops+PV_MMU_set_pgd_batched) -+ i = i + 1 -+ .endr -+ jmp 2f -+1: -+#endif -+ -+ i = 0 -+ .rept USER_PGD_PTRS -+ movb $0x67,i*8(%rdi) -+ i = i + 1 -+ .endr -+ -+#ifdef CONFIG_PARAVIRT -+2: PV_RESTORE_REGS(CLBR_RDI) -+ popq %rbx -+#endif -+ -+ popq %rdi -+ retq -+ENDPROC(pax_exit_kernel_user) -+#endif -+ -+ .macro pax_erase_kstack -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+ call pax_erase_kstack -+#endif -+ .endm -+ -+#ifdef CONFIG_PAX_MEMORY_STACKLEAK -+/* -+ * r10: thread_info -+ * rcx, rdx: can be clobbered -+ */ -+ENTRY(pax_erase_kstack) -+ pushq %rdi -+ pushq %rax -+ pushq %r10 -+ -+ GET_THREAD_INFO(%r10) -+ mov TI_lowest_stack(%r10), %rdi -+ mov $-0xBEEF, %rax -+ std -+ -+1: mov %edi, %ecx -+ and $THREAD_SIZE_asm - 1, %ecx -+ shr $3, %ecx -+ repne scasq -+ jecxz 2f -+ -+ cmp $2*8, %ecx -+ jc 2f -+ -+ mov $2*8, %ecx -+ repe scasq -+ jecxz 2f -+ jne 1b -+ -+2: cld -+ mov %esp, %ecx -+ sub %edi, %ecx -+ -+ cmp $THREAD_SIZE_asm, %rcx -+ jb 3f -+ ud2 -+3: -+ -+ shr $3, %ecx -+ rep stosq -+ -+ mov TI_task_thread_sp0(%r10), %rdi -+ sub $256, %rdi -+ mov %rdi, TI_lowest_stack(%r10) -+ -+ popq %r10 -+ popq %rax -+ popq %rdi -+ ret -+ENDPROC(pax_erase_kstack) -+#endif - - .macro TRACE_IRQS_IRETQ offset=ARGOFFSET - #ifdef CONFIG_TRACE_IRQFLAGS -@@ -318,7 +577,7 @@ ENTRY(save_args) - leaq -RBP+8(%rsp),%rdi /* arg1 for handler */ - movq_cfi rbp, 8 /* push %rbp */ - leaq 8(%rsp), %rbp /* mov %rsp, %ebp */ -- testl $3, CS(%rdi) -+ testb $3, CS(%rdi) - je 1f - SWAPGS - /* -@@ -409,7 +668,7 @@ ENTRY(ret_from_fork) - - RESTORE_REST - -- testl $3, CS-ARGOFFSET(%rsp) # from kernel_thread? -+ testb $3, CS-ARGOFFSET(%rsp) # from kernel_thread? - je int_ret_from_sys_call - - testl $_TIF_IA32, TI_flags(%rcx) # 32-bit compat task needs IRET -@@ -455,7 +714,7 @@ END(ret_from_fork) - ENTRY(system_call) - CFI_STARTPROC simple - CFI_SIGNAL_FRAME -- CFI_DEF_CFA rsp,KERNEL_STACK_OFFSET -+ CFI_DEF_CFA rsp,0 - CFI_REGISTER rip,rcx - /*CFI_REGISTER rflags,r11*/ - SWAPGS_UNSAFE_STACK -@@ -468,12 +727,13 @@ ENTRY(system_call_after_swapgs) - - movq %rsp,PER_CPU_VAR(old_rsp) - movq PER_CPU_VAR(kernel_stack),%rsp -+ pax_enter_kernel_user - /* - * No need to follow this irqs off/on section - it's straight - * and short: - */ - ENABLE_INTERRUPTS(CLBR_NONE) -- SAVE_ARGS 8,1 -+ SAVE_ARGS 8*6,1 - movq %rax,ORIG_RAX-ARGOFFSET(%rsp) - movq %rcx,RIP-ARGOFFSET(%rsp) - CFI_REL_OFFSET rip,RIP-ARGOFFSET -@@ -502,6 +762,8 @@ sysret_check: - andl %edi,%edx - jnz sysret_careful - CFI_REMEMBER_STATE -+ pax_exit_kernel_user -+ pax_erase_kstack - /* - * sysretq will re-enable interrupts: - */ -@@ -560,6 +822,9 @@ auditsys: - movq %rax,%rsi /* 2nd arg: syscall number */ - movl $AUDIT_ARCH_X86_64,%edi /* 1st arg: audit arch */ - call audit_syscall_entry -+ -+ pax_erase_kstack -+ - LOAD_ARGS 0 /* reload call-clobbered registers */ - jmp system_call_fastpath - -@@ -590,6 +855,9 @@ tracesys: - FIXUP_TOP_OF_STACK %rdi - movq %rsp,%rdi - call syscall_trace_enter -+ -+ pax_erase_kstack -+ - /* - * Reload arg registers from stack in case ptrace changed them. - * We don't reload %rax because syscall_trace_enter() returned -@@ -611,7 +879,7 @@ tracesys: - GLOBAL(int_ret_from_sys_call) - DISABLE_INTERRUPTS(CLBR_NONE) - TRACE_IRQS_OFF -- testl $3,CS-ARGOFFSET(%rsp) -+ testb $3,CS-ARGOFFSET(%rsp) - je retint_restore_args - movl $_TIF_ALLWORK_MASK,%edi - /* edi: mask to check */ -@@ -793,6 +1061,16 @@ END(interrupt) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-RBP - call save_args - PARTIAL_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rdi) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - call \func - .endm - -@@ -825,7 +1103,7 @@ ret_from_intr: - CFI_ADJUST_CFA_OFFSET -8 - exit_intr: - GET_THREAD_INFO(%rcx) -- testl $3,CS-ARGOFFSET(%rsp) -+ testb $3,CS-ARGOFFSET(%rsp) - je retint_kernel - - /* Interrupt came from user space */ -@@ -847,12 +1125,15 @@ retint_swapgs: /* return to user-space - * The iretq could re-enable interrupts: - */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel_user -+ pax_erase_kstack - TRACE_IRQS_IRETQ - SWAPGS - jmp restore_args - - retint_restore_args: /* return to kernel space */ - DISABLE_INTERRUPTS(CLBR_ANY) -+ pax_exit_kernel - /* - * The iretq could re-enable interrupts: - */ -@@ -1027,6 +1308,16 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call error_entry - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ - call \do_sym -@@ -1044,6 +1335,16 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call save_paranoid - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ - call \do_sym -@@ -1052,7 +1353,7 @@ ENTRY(\sym) - END(\sym) - .endm - --#define INIT_TSS_IST(x) PER_CPU_VAR(init_tss) + (TSS_ist + ((x) - 1) * 8) -+#define INIT_TSS_IST(x) (TSS_ist + ((x) - 1) * 8)(%r12) - .macro paranoidzeroentry_ist sym do_sym ist - ENTRY(\sym) - INTR_FRAME -@@ -1062,8 +1363,24 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call save_paranoid - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - xorl %esi,%esi /* no error code */ -+#ifdef CONFIG_SMP -+ imul $TSS_size, PER_CPU_VAR(cpu_number), %r12d -+ lea init_tss(%r12), %r12 -+#else -+ lea init_tss(%rip), %r12 -+#endif - subq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) - call \do_sym - addq $EXCEPTION_STKSZ, INIT_TSS_IST(\ist) -@@ -1080,6 +1397,16 @@ ENTRY(\sym) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call error_entry - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - movq ORIG_RAX(%rsp),%rsi /* get error code */ - movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ -@@ -1099,6 +1426,16 @@ ENTRY(\sym) - call save_paranoid - DEFAULT_FRAME 0 - TRACE_IRQS_OFF -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - movq %rsp,%rdi /* pt_regs pointer */ - movq ORIG_RAX(%rsp),%rsi /* get error code */ - movq $-1,ORIG_RAX(%rsp) /* no syscall to restart */ -@@ -1361,14 +1698,27 @@ ENTRY(paranoid_exit) - TRACE_IRQS_OFF - testl %ebx,%ebx /* swapgs needed? */ - jnz paranoid_restore -- testl $3,CS(%rsp) -+ testb $3,CS(%rsp) - jnz paranoid_userspace -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel -+ TRACE_IRQS_IRETQ 0 -+ SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ jmp irq_return -+#endif - paranoid_swapgs: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel_user -+#else -+ pax_exit_kernel -+#endif - TRACE_IRQS_IRETQ 0 - SWAPGS_UNSAFE_STACK - RESTORE_ALL 8 - jmp irq_return - paranoid_restore: -+ pax_exit_kernel - TRACE_IRQS_IRETQ 0 - RESTORE_ALL 8 - jmp irq_return -@@ -1426,7 +1776,7 @@ ENTRY(error_entry) - movq_cfi r14, R14+8 - movq_cfi r15, R15+8 - xorl %ebx,%ebx -- testl $3,CS+8(%rsp) -+ testb $3,CS+8(%rsp) - je error_kernelspace - error_swapgs: - SWAPGS -@@ -1490,6 +1840,16 @@ ENTRY(nmi) - CFI_ADJUST_CFA_OFFSET ORIG_RAX-R15 - call save_paranoid - DEFAULT_FRAME 0 -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ testb $3, CS(%rsp) -+ jnz 1f -+ pax_enter_kernel -+ jmp 2f -+1: pax_enter_kernel_user -+2: -+#else -+ pax_enter_kernel -+#endif - /* paranoidentry do_nmi, 0; without TRACE_IRQS_OFF */ - movq %rsp,%rdi - movq $-1,%rsi -@@ -1500,11 +1860,25 @@ ENTRY(nmi) - DISABLE_INTERRUPTS(CLBR_NONE) - testl %ebx,%ebx /* swapgs needed? */ - jnz nmi_restore -- testl $3,CS(%rsp) -+ testb $3,CS(%rsp) - jnz nmi_userspace -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel -+ SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ jmp irq_return -+#endif - nmi_swapgs: -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pax_exit_kernel_user -+#else -+ pax_exit_kernel -+#endif - SWAPGS_UNSAFE_STACK -+ RESTORE_ALL 8 -+ jmp irq_return - nmi_restore: -+ pax_exit_kernel - RESTORE_ALL 8 - jmp irq_return - nmi_userspace: -diff -urNp linux-3.0.4/arch/x86/kernel/ftrace.c linux-3.0.4/arch/x86/kernel/ftrace.c ---- linux-3.0.4/arch/x86/kernel/ftrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ftrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -126,7 +126,7 @@ static void *mod_code_ip; /* holds the - static const void *mod_code_newcode; /* holds the text to write to the IP */ - - static unsigned nmi_wait_count; --static atomic_t nmi_update_count = ATOMIC_INIT(0); -+static atomic_unchecked_t nmi_update_count = ATOMIC_INIT(0); - - int ftrace_arch_read_dyn_info(char *buf, int size) - { -@@ -134,7 +134,7 @@ int ftrace_arch_read_dyn_info(char *buf, - - r = snprintf(buf, size, "%u %u", - nmi_wait_count, -- atomic_read(&nmi_update_count)); -+ atomic_read_unchecked(&nmi_update_count)); - return r; - } - -@@ -177,8 +177,10 @@ void ftrace_nmi_enter(void) - - if (atomic_inc_return(&nmi_running) & MOD_CODE_WRITE_FLAG) { - smp_rmb(); -+ pax_open_kernel(); - ftrace_mod_code(); -- atomic_inc(&nmi_update_count); -+ pax_close_kernel(); -+ atomic_inc_unchecked(&nmi_update_count); - } - /* Must have previous changes seen before executions */ - smp_mb(); -@@ -271,6 +273,8 @@ ftrace_modify_code(unsigned long ip, uns - { - unsigned char replaced[MCOUNT_INSN_SIZE]; - -+ ip = ktla_ktva(ip); -+ - /* - * Note: Due to modules and __init, code can - * disappear and change, we need to protect against faulting -@@ -327,7 +331,7 @@ int ftrace_update_ftrace_func(ftrace_fun - unsigned char old[MCOUNT_INSN_SIZE], *new; - int ret; - -- memcpy(old, &ftrace_call, MCOUNT_INSN_SIZE); -+ memcpy(old, (void *)ktla_ktva((unsigned long)ftrace_call), MCOUNT_INSN_SIZE); - new = ftrace_call_replace(ip, (unsigned long)func); - ret = ftrace_modify_code(ip, old, new); - -@@ -353,6 +357,8 @@ static int ftrace_mod_jmp(unsigned long - { - unsigned char code[MCOUNT_INSN_SIZE]; - -+ ip = ktla_ktva(ip); -+ - if (probe_kernel_read(code, (void *)ip, MCOUNT_INSN_SIZE)) - return -EFAULT; - -diff -urNp linux-3.0.4/arch/x86/kernel/head32.c linux-3.0.4/arch/x86/kernel/head32.c ---- linux-3.0.4/arch/x86/kernel/head32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - - static void __init i386_default_early_setup(void) - { -@@ -33,7 +34,7 @@ void __init i386_start_kernel(void) - { - memblock_init(); - -- memblock_x86_reserve_range(__pa_symbol(&_text), __pa_symbol(&__bss_stop), "TEXT DATA BSS"); -+ memblock_x86_reserve_range(LOAD_PHYSICAL_ADDR, __pa_symbol(&__bss_stop), "TEXT DATA BSS"); - - #ifdef CONFIG_BLK_DEV_INITRD - /* Reserve INITRD */ -diff -urNp linux-3.0.4/arch/x86/kernel/head_32.S linux-3.0.4/arch/x86/kernel/head_32.S ---- linux-3.0.4/arch/x86/kernel/head_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -25,6 +25,12 @@ - /* Physical address */ - #define pa(X) ((X) - __PAGE_OFFSET) - -+#ifdef CONFIG_PAX_KERNEXEC -+#define ta(X) (X) -+#else -+#define ta(X) ((X) - __PAGE_OFFSET) -+#endif -+ - /* - * References to members of the new_cpu_data structure. - */ -@@ -54,11 +60,7 @@ - * and small than max_low_pfn, otherwise will waste some page table entries - */ - --#if PTRS_PER_PMD > 1 --#define PAGE_TABLE_SIZE(pages) (((pages) / PTRS_PER_PMD) + PTRS_PER_PGD) --#else --#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PGD) --#endif -+#define PAGE_TABLE_SIZE(pages) ((pages) / PTRS_PER_PTE) - - /* Number of possible pages in the lowmem region */ - LOWMEM_PAGES = (((1<<32) - __PAGE_OFFSET) >> PAGE_SHIFT) -@@ -77,6 +79,12 @@ INIT_MAP_SIZE = PAGE_TABLE_SIZE(KERNEL_P - RESERVE_BRK(pagetables, INIT_MAP_SIZE) - - /* -+ * Real beginning of normal "text" segment -+ */ -+ENTRY(stext) -+ENTRY(_stext) -+ -+/* - * 32-bit kernel entrypoint; only used by the boot CPU. On entry, - * %esi points to the real-mode code as a 32-bit pointer. - * CS and DS must be 4 GB flat segments, but we don't depend on -@@ -84,6 +92,13 @@ RESERVE_BRK(pagetables, INIT_MAP_SIZE) - * can. - */ - __HEAD -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ jmp startup_32 -+/* PaX: fill first page in .text with int3 to catch NULL derefs in kernel mode */ -+.fill PAGE_SIZE-5,1,0xcc -+#endif -+ - ENTRY(startup_32) - movl pa(stack_start),%ecx - -@@ -105,6 +120,57 @@ ENTRY(startup_32) - 2: - leal -__PAGE_OFFSET(%ecx),%esp - -+#ifdef CONFIG_SMP -+ movl $pa(cpu_gdt_table),%edi -+ movl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+#endif -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+1: -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c09700),GDT_ENTRY_KERNEL_DS * 8 + 4(%edi) -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0fb00),GDT_ENTRY_DEFAULT_USER_CS * 8 + 4(%edi) -+ movl $((((__PAGE_OFFSET-1) & 0xf0000000) >> 12) | 0x00c0f300),GDT_ENTRY_DEFAULT_USER_DS * 8 + 4(%edi) -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ movl $pa(boot_gdt),%edi -+ movl $__LOAD_PHYSICAL_ADDR,%eax -+ movw %ax,__BOOT_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__BOOT_CS + 4(%edi) -+ movb %ah,__BOOT_CS + 7(%edi) -+ rorl $16,%eax -+ -+ ljmp $(__BOOT_CS),$1f -+1: -+ -+ movl $NR_CPUS,%ecx -+ movl $pa(cpu_gdt_table),%edi -+ addl $__PAGE_OFFSET,%eax -+1: -+ movw %ax,__KERNEL_CS + 2(%edi) -+ movw %ax,__KERNEXEC_KERNEL_CS + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_CS + 4(%edi) -+ movb %al,__KERNEXEC_KERNEL_CS + 4(%edi) -+ movb %ah,__KERNEL_CS + 7(%edi) -+ movb %ah,__KERNEXEC_KERNEL_CS + 7(%edi) -+ rorl $16,%eax -+ addl $PAGE_SIZE_asm,%edi -+ loop 1b -+#endif -+ - /* - * Clear BSS first so that there are no surprises... - */ -@@ -195,8 +261,11 @@ ENTRY(startup_32) - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#else -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_pg_pmd+0x1000*KPMDS-8) -+#endif - #else /* Not PAE */ - - page_pde_offset = (__PAGE_OFFSET >> 20); -@@ -226,8 +295,11 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - movl %eax, pa(max_pfn_mapped) - - /* Do early initialization of the fixmap area */ -- movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,%eax -- movl %eax,pa(initial_page_table+0xffc) -+#ifdef CONFIG_COMPAT_VDSO -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR+_PAGE_USER,pa(initial_page_table+0xffc) -+#else -+ movl $pa(initial_pg_fixmap)+PDE_IDENT_ATTR,pa(initial_page_table+0xffc) -+#endif - #endif - - #ifdef CONFIG_PARAVIRT -@@ -241,9 +313,7 @@ page_pde_offset = (__PAGE_OFFSET >> 20); - cmpl $num_subarch_entries, %eax - jae bad_subarch - -- movl pa(subarch_entries)(,%eax,4), %eax -- subl $__PAGE_OFFSET, %eax -- jmp *%eax -+ jmp *pa(subarch_entries)(,%eax,4) - - bad_subarch: - WEAK(lguest_entry) -@@ -255,10 +325,10 @@ WEAK(xen_entry) - __INITDATA - - subarch_entries: -- .long default_entry /* normal x86/PC */ -- .long lguest_entry /* lguest hypervisor */ -- .long xen_entry /* Xen hypervisor */ -- .long default_entry /* Moorestown MID */ -+ .long ta(default_entry) /* normal x86/PC */ -+ .long ta(lguest_entry) /* lguest hypervisor */ -+ .long ta(xen_entry) /* Xen hypervisor */ -+ .long ta(default_entry) /* Moorestown MID */ - num_subarch_entries = (. - subarch_entries) / 4 - .previous - #else -@@ -312,6 +382,7 @@ default_entry: - orl %edx,%eax - movl %eax,%cr4 - -+#ifdef CONFIG_X86_PAE - testb $X86_CR4_PAE, %al # check if PAE is enabled - jz 6f - -@@ -340,6 +411,9 @@ default_entry: - /* Make changes effective */ - wrmsr - -+ btsl $_PAGE_BIT_NX-32,pa(__supported_pte_mask+4) -+#endif -+ - 6: - - /* -@@ -443,7 +517,7 @@ is386: movl $2,%ecx # set MP - 1: movl $(__KERNEL_DS),%eax # reload all the segment registers - movl %eax,%ss # after changing gdt. - -- movl $(__USER_DS),%eax # DS/ES contains default USER segment -+# movl $(__KERNEL_DS),%eax # DS/ES contains default KERNEL segment - movl %eax,%ds - movl %eax,%es - -@@ -457,15 +531,22 @@ is386: movl $2,%ecx # set MP - */ - cmpb $0,ready - jne 1f -- movl $gdt_page,%eax -+ movl $cpu_gdt_table,%eax - movl $stack_canary,%ecx -+#ifdef CONFIG_SMP -+ addl $__per_cpu_load,%ecx -+#endif - movw %cx, 8 * GDT_ENTRY_STACK_CANARY + 2(%eax) - shrl $16, %ecx - movb %cl, 8 * GDT_ENTRY_STACK_CANARY + 4(%eax) - movb %ch, 8 * GDT_ENTRY_STACK_CANARY + 7(%eax) - 1: --#endif - movl $(__KERNEL_STACK_CANARY),%eax -+#elif defined(CONFIG_PAX_MEMORY_UDEREF) -+ movl $(__USER_DS),%eax -+#else -+ xorl %eax,%eax -+#endif - movl %eax,%gs - - xorl %eax,%eax # Clear LDT -@@ -558,22 +639,22 @@ early_page_fault: - jmp early_fault - - early_fault: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $1,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pusha - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - movl %cr2,%eax - pushl %eax - pushl %edx /* trapno */ - pushl $fault_msg - call printk -+; call dump_stack - #endif -- call dump_stack - hlt_loop: - hlt - jmp hlt_loop -@@ -581,8 +662,11 @@ hlt_loop: - /* This is the default interrupt "handler" :-) */ - ALIGN - ignore_int: -- cld - #ifdef CONFIG_PRINTK -+ cmpl $2,%ss:early_recursion_flag -+ je hlt_loop -+ incl %ss:early_recursion_flag -+ cld - pushl %eax - pushl %ecx - pushl %edx -@@ -591,9 +675,6 @@ ignore_int: - movl $(__KERNEL_DS),%eax - movl %eax,%ds - movl %eax,%es -- cmpl $2,early_recursion_flag -- je hlt_loop -- incl early_recursion_flag - pushl 16(%esp) - pushl 24(%esp) - pushl 32(%esp) -@@ -622,29 +703,43 @@ ENTRY(initial_code) - /* - * BSS section - */ --__PAGE_ALIGNED_BSS -- .align PAGE_SIZE - #ifdef CONFIG_X86_PAE -+.section .initial_pg_pmd,"a",@progbits - initial_pg_pmd: - .fill 1024*KPMDS,4,0 - #else -+.section .initial_page_table,"a",@progbits - ENTRY(initial_page_table) - .fill 1024,4,0 - #endif -+.section .initial_pg_fixmap,"a",@progbits - initial_pg_fixmap: - .fill 1024,4,0 -+.section .empty_zero_page,"a",@progbits - ENTRY(empty_zero_page) - .fill 4096,1,0 -+.section .swapper_pg_dir,"a",@progbits - ENTRY(swapper_pg_dir) -+#ifdef CONFIG_X86_PAE -+ .fill 4,8,0 -+#else - .fill 1024,4,0 -+#endif -+ -+/* -+ * The IDT has to be page-aligned to simplify the Pentium -+ * F0 0F bug workaround.. We have a special link segment -+ * for this. -+ */ -+.section .idt,"a",@progbits -+ENTRY(idt_table) -+ .fill 256,8,0 - - /* - * This starts the data section. - */ - #ifdef CONFIG_X86_PAE --__PAGE_ALIGNED_DATA -- /* Page-aligned for the benefit of paravirt? */ -- .align PAGE_SIZE -+.section .initial_page_table,"a",@progbits - ENTRY(initial_page_table) - .long pa(initial_pg_pmd+PGD_IDENT_ATTR),0 /* low identity map */ - # if KPMDS == 3 -@@ -663,18 +758,27 @@ ENTRY(initial_page_table) - # error "Kernel PMDs should be 1, 2 or 3" - # endif - .align PAGE_SIZE /* needs to be page-sized too */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ENTRY(cpu_pgd) -+ .rept NR_CPUS -+ .fill 4,8,0 -+ .endr -+#endif -+ - #endif - - .data - .balign 4 - ENTRY(stack_start) -- .long init_thread_union+THREAD_SIZE -+ .long init_thread_union+THREAD_SIZE-8 -+ -+ready: .byte 0 - -+.section .rodata,"a",@progbits - early_recursion_flag: - .long 0 - --ready: .byte 0 -- - int_msg: - .asciz "Unknown interrupt or fault at: %p %p %p\n" - -@@ -707,7 +811,7 @@ fault_msg: - .word 0 # 32 bit align gdt_desc.address - boot_gdt_descr: - .word __BOOT_DS+7 -- .long boot_gdt - __PAGE_OFFSET -+ .long pa(boot_gdt) - - .word 0 # 32-bit align idt_desc.address - idt_descr: -@@ -718,7 +822,7 @@ idt_descr: - .word 0 # 32 bit align gdt_desc.address - ENTRY(early_gdt_descr) - .word GDT_ENTRIES*8-1 -- .long gdt_page /* Overwritten for secondary CPUs */ -+ .long cpu_gdt_table /* Overwritten for secondary CPUs */ - - /* - * The boot_gdt must mirror the equivalent in setup.S and is -@@ -727,5 +831,65 @@ ENTRY(early_gdt_descr) - .align L1_CACHE_BYTES - ENTRY(boot_gdt) - .fill GDT_ENTRY_BOOT_CS,8,0 -- .quad 0x00cf9a000000ffff /* kernel 4GB code at 0x00000000 */ -- .quad 0x00cf92000000ffff /* kernel 4GB data at 0x00000000 */ -+ .quad 0x00cf9b000000ffff /* kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* kernel 4GB data at 0x00000000 */ -+ -+ .align PAGE_SIZE_asm -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x0000000000000000 /* 0x0b reserved */ -+ .quad 0x0000000000000000 /* 0x13 reserved */ -+ .quad 0x0000000000000000 /* 0x1b reserved */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .quad 0x00cf9b000000ffff /* 0x20 alternate kernel 4GB code at 0x00000000 */ -+#else -+ .quad 0x0000000000000000 /* 0x20 unused */ -+#endif -+ -+ .quad 0x0000000000000000 /* 0x28 unused */ -+ .quad 0x0000000000000000 /* 0x33 TLS entry 1 */ -+ .quad 0x0000000000000000 /* 0x3b TLS entry 2 */ -+ .quad 0x0000000000000000 /* 0x43 TLS entry 3 */ -+ .quad 0x0000000000000000 /* 0x4b reserved */ -+ .quad 0x0000000000000000 /* 0x53 reserved */ -+ .quad 0x0000000000000000 /* 0x5b reserved */ -+ -+ .quad 0x00cf9b000000ffff /* 0x60 kernel 4GB code at 0x00000000 */ -+ .quad 0x00cf93000000ffff /* 0x68 kernel 4GB data at 0x00000000 */ -+ .quad 0x00cffb000000ffff /* 0x73 user 4GB code at 0x00000000 */ -+ .quad 0x00cff3000000ffff /* 0x7b user 4GB data at 0x00000000 */ -+ -+ .quad 0x0000000000000000 /* 0x80 TSS descriptor */ -+ .quad 0x0000000000000000 /* 0x88 LDT descriptor */ -+ -+ /* -+ * Segments used for calling PnP BIOS have byte granularity. -+ * The code segments and data segments have fixed 64k limits, -+ * the transfer segment sizes are set at run time. -+ */ -+ .quad 0x00409b000000ffff /* 0x90 32-bit code */ -+ .quad 0x00009b000000ffff /* 0x98 16-bit code */ -+ .quad 0x000093000000ffff /* 0xa0 16-bit data */ -+ .quad 0x0000930000000000 /* 0xa8 16-bit data */ -+ .quad 0x0000930000000000 /* 0xb0 16-bit data */ -+ -+ /* -+ * The APM segments have byte granularity and their bases -+ * are set at run time. All have 64k limits. -+ */ -+ .quad 0x00409b000000ffff /* 0xb8 APM CS code */ -+ .quad 0x00009b000000ffff /* 0xc0 APM CS 16 code (16 bit) */ -+ .quad 0x004093000000ffff /* 0xc8 APM DS data */ -+ -+ .quad 0x00c0930000000000 /* 0xd0 - ESPFIX SS */ -+ .quad 0x0040930000000000 /* 0xd8 - PERCPU */ -+ .quad 0x0040910000000017 /* 0xe0 - STACK_CANARY */ -+ .quad 0x0000000000000000 /* 0xe8 - PCIBIOS_CS */ -+ .quad 0x0000000000000000 /* 0xf0 - PCIBIOS_DS */ -+ .quad 0x0000000000000000 /* 0xf8 - GDT entry 31: double-fault TSS */ -+ -+ /* Be sure this is zeroed to avoid false validations in Xen */ -+ .fill PAGE_SIZE_asm - GDT_SIZE,1,0 -+ .endr -diff -urNp linux-3.0.4/arch/x86/kernel/head_64.S linux-3.0.4/arch/x86/kernel/head_64.S ---- linux-3.0.4/arch/x86/kernel/head_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/head_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - - #ifdef CONFIG_PARAVIRT - #include -@@ -38,6 +39,10 @@ L4_PAGE_OFFSET = pgd_index(__PAGE_OFFSET - L3_PAGE_OFFSET = pud_index(__PAGE_OFFSET) - L4_START_KERNEL = pgd_index(__START_KERNEL_map) - L3_START_KERNEL = pud_index(__START_KERNEL_map) -+L4_VMALLOC_START = pgd_index(VMALLOC_START) -+L3_VMALLOC_START = pud_index(VMALLOC_START) -+L4_VMEMMAP_START = pgd_index(VMEMMAP_START) -+L3_VMEMMAP_START = pud_index(VMEMMAP_START) - - .text - __HEAD -@@ -85,35 +90,22 @@ startup_64: - */ - addq %rbp, init_level4_pgt + 0(%rip) - addq %rbp, init_level4_pgt + (L4_PAGE_OFFSET*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMALLOC_START*8)(%rip) -+ addq %rbp, init_level4_pgt + (L4_VMEMMAP_START*8)(%rip) - addq %rbp, init_level4_pgt + (L4_START_KERNEL*8)(%rip) - - addq %rbp, level3_ident_pgt + 0(%rip) -+#ifndef CONFIG_XEN -+ addq %rbp, level3_ident_pgt + 8(%rip) -+#endif - -- addq %rbp, level3_kernel_pgt + (510*8)(%rip) -- addq %rbp, level3_kernel_pgt + (511*8)(%rip) -+ addq %rbp, level3_vmemmap_pgt + (L3_VMEMMAP_START*8)(%rip) - -- addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8)(%rip) -+ addq %rbp, level3_kernel_pgt + (L3_START_KERNEL*8+8)(%rip) - -- /* Add an Identity mapping if I am above 1G */ -- leaq _text(%rip), %rdi -- andq $PMD_PAGE_MASK, %rdi -- -- movq %rdi, %rax -- shrq $PUD_SHIFT, %rax -- andq $(PTRS_PER_PUD - 1), %rax -- jz ident_complete -- -- leaq (level2_spare_pgt - __START_KERNEL_map + _KERNPG_TABLE)(%rbp), %rdx -- leaq level3_ident_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) -- -- movq %rdi, %rax -- shrq $PMD_SHIFT, %rax -- andq $(PTRS_PER_PMD - 1), %rax -- leaq __PAGE_KERNEL_IDENT_LARGE_EXEC(%rdi), %rdx -- leaq level2_spare_pgt(%rip), %rbx -- movq %rdx, 0(%rbx, %rax, 8) --ident_complete: -+ addq %rbp, level2_fixmap_pgt + (506*8)(%rip) -+ addq %rbp, level2_fixmap_pgt + (507*8)(%rip) - - /* - * Fixup the kernel text+data virtual addresses. Note that -@@ -160,8 +152,8 @@ ENTRY(secondary_startup_64) - * after the boot processor executes this code. - */ - -- /* Enable PAE mode and PGE */ -- movl $(X86_CR4_PAE | X86_CR4_PGE), %eax -+ /* Enable PAE mode and PSE/PGE */ -+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax - movq %rax, %cr4 - - /* Setup early boot stage 4 level pagetables. */ -@@ -183,9 +175,14 @@ ENTRY(secondary_startup_64) - movl $MSR_EFER, %ecx - rdmsr - btsl $_EFER_SCE, %eax /* Enable System Call */ -- btl $20,%edi /* No Execute supported? */ -+ btl $(X86_FEATURE_NX & 31),%edi /* No Execute supported? */ - jnc 1f - btsl $_EFER_NX, %eax -+ leaq init_level4_pgt(%rip), %rdi -+ btsq $_PAGE_BIT_NX, 8*L4_PAGE_OFFSET(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMALLOC_START(%rdi) -+ btsq $_PAGE_BIT_NX, 8*L4_VMEMMAP_START(%rdi) -+ btsq $_PAGE_BIT_NX, __supported_pte_mask(%rip) - 1: wrmsr /* Make changes effective */ - - /* Setup cr0 */ -@@ -269,7 +266,7 @@ ENTRY(secondary_startup_64) - bad_address: - jmp bad_address - -- .section ".init.text","ax" -+ __INIT - #ifdef CONFIG_EARLY_PRINTK - .globl early_idt_handlers - early_idt_handlers: -@@ -314,18 +311,23 @@ ENTRY(early_idt_handler) - #endif /* EARLY_PRINTK */ - 1: hlt - jmp 1b -+ .previous - - #ifdef CONFIG_EARLY_PRINTK -+ __INITDATA - early_recursion_flag: - .long 0 -+ .previous - -+ .section .rodata,"a",@progbits - early_idt_msg: - .asciz "PANIC: early exception %02lx rip %lx:%lx error %lx cr2 %lx\n" - early_idt_ripmsg: - .asciz "RIP %s\n" --#endif /* CONFIG_EARLY_PRINTK */ - .previous -+#endif /* CONFIG_EARLY_PRINTK */ - -+ .section .rodata,"a",@progbits - #define NEXT_PAGE(name) \ - .balign PAGE_SIZE; \ - ENTRY(name) -@@ -338,7 +340,6 @@ ENTRY(name) - i = i + 1 ; \ - .endr - -- .data - /* - * This default setting generates an ident mapping at address 0x100000 - * and a mapping for the kernel that precisely maps virtual address -@@ -349,13 +350,36 @@ NEXT_PAGE(init_level4_pgt) - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_PAGE_OFFSET*8, 0 - .quad level3_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMALLOC_START*8, 0 -+ .quad level3_vmalloc_pgt - __START_KERNEL_map + _KERNPG_TABLE -+ .org init_level4_pgt + L4_VMEMMAP_START*8, 0 -+ .quad level3_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - .org init_level4_pgt + L4_START_KERNEL*8, 0 - /* (2^48-(2*1024*1024*1024))/(2^39) = 511 */ - .quad level3_kernel_pgt - __START_KERNEL_map + _PAGE_TABLE - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+NEXT_PAGE(cpu_pgd) -+ .rept NR_CPUS -+ .fill 512,8,0 -+ .endr -+#endif -+ - NEXT_PAGE(level3_ident_pgt) - .quad level2_ident_pgt - __START_KERNEL_map + _KERNPG_TABLE -+#ifdef CONFIG_XEN - .fill 511,8,0 -+#else -+ .quad level2_ident_pgt + PAGE_SIZE - __START_KERNEL_map + _KERNPG_TABLE -+ .fill 510,8,0 -+#endif -+ -+NEXT_PAGE(level3_vmalloc_pgt) -+ .fill 512,8,0 -+ -+NEXT_PAGE(level3_vmemmap_pgt) -+ .fill L3_VMEMMAP_START,8,0 -+ .quad level2_vmemmap_pgt - __START_KERNEL_map + _KERNPG_TABLE - - NEXT_PAGE(level3_kernel_pgt) - .fill L3_START_KERNEL,8,0 -@@ -363,20 +387,23 @@ NEXT_PAGE(level3_kernel_pgt) - .quad level2_kernel_pgt - __START_KERNEL_map + _KERNPG_TABLE - .quad level2_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE - -+NEXT_PAGE(level2_vmemmap_pgt) -+ .fill 512,8,0 -+ - NEXT_PAGE(level2_fixmap_pgt) -- .fill 506,8,0 -- .quad level1_fixmap_pgt - __START_KERNEL_map + _PAGE_TABLE -- /* 8MB reserved for vsyscalls + a 2MB hole = 4 + 1 entries */ -- .fill 5,8,0 -+ .fill 507,8,0 -+ .quad level1_vsyscall_pgt - __START_KERNEL_map + _PAGE_TABLE -+ /* 6MB reserved for vsyscalls + a 2MB hole = 3 + 1 entries */ -+ .fill 4,8,0 - --NEXT_PAGE(level1_fixmap_pgt) -+NEXT_PAGE(level1_vsyscall_pgt) - .fill 512,8,0 - --NEXT_PAGE(level2_ident_pgt) -- /* Since I easily can, map the first 1G. -+ /* Since I easily can, map the first 2G. - * Don't set NX because code runs from these pages. - */ -- PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, PTRS_PER_PMD) -+NEXT_PAGE(level2_ident_pgt) -+ PMDS(0, __PAGE_KERNEL_IDENT_LARGE_EXEC, 2*PTRS_PER_PMD) - - NEXT_PAGE(level2_kernel_pgt) - /* -@@ -389,33 +416,55 @@ NEXT_PAGE(level2_kernel_pgt) - * If you want to increase this then increase MODULES_VADDR - * too.) - */ -- PMDS(0, __PAGE_KERNEL_LARGE_EXEC, -- KERNEL_IMAGE_SIZE/PMD_SIZE) -- --NEXT_PAGE(level2_spare_pgt) -- .fill 512, 8, 0 -+ PMDS(0, __PAGE_KERNEL_LARGE_EXEC, KERNEL_IMAGE_SIZE/PMD_SIZE) - - #undef PMDS - #undef NEXT_PAGE - -- .data -+ .align PAGE_SIZE -+ENTRY(cpu_gdt_table) -+ .rept NR_CPUS -+ .quad 0x0000000000000000 /* NULL descriptor */ -+ .quad 0x00cf9b000000ffff /* __KERNEL32_CS */ -+ .quad 0x00af9b000000ffff /* __KERNEL_CS */ -+ .quad 0x00cf93000000ffff /* __KERNEL_DS */ -+ .quad 0x00cffb000000ffff /* __USER32_CS */ -+ .quad 0x00cff3000000ffff /* __USER_DS, __USER32_DS */ -+ .quad 0x00affb000000ffff /* __USER_CS */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .quad 0x00af9b000000ffff /* __KERNEXEC_KERNEL_CS */ -+#else -+ .quad 0x0 /* unused */ -+#endif -+ -+ .quad 0,0 /* TSS */ -+ .quad 0,0 /* LDT */ -+ .quad 0,0,0 /* three TLS descriptors */ -+ .quad 0x0000f40000000000 /* node/CPU stored in limit */ -+ /* asm/segment.h:GDT_ENTRIES must match this */ -+ -+ /* zero the remaining page */ -+ .fill PAGE_SIZE / 8 - GDT_ENTRIES,8,0 -+ .endr -+ - .align 16 - .globl early_gdt_descr - early_gdt_descr: - .word GDT_ENTRIES*8-1 - early_gdt_descr_base: -- .quad INIT_PER_CPU_VAR(gdt_page) -+ .quad cpu_gdt_table - - ENTRY(phys_base) - /* This must match the first entry in level2_kernel_pgt */ - .quad 0x0000000000000000 - - #include "../../x86/xen/xen-head.S" -- -- .section .bss, "aw", @nobits -+ -+ .section .rodata,"a",@progbits - .align L1_CACHE_BYTES - ENTRY(idt_table) -- .skip IDT_ENTRIES * 16 -+ .fill 512,8,0 - - __PAGE_ALIGNED_BSS - .align PAGE_SIZE -diff -urNp linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c ---- linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/i386_ksyms_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -20,8 +20,12 @@ extern void cmpxchg8b_emu(void); - EXPORT_SYMBOL(cmpxchg8b_emu); - #endif - -+EXPORT_SYMBOL_GPL(cpu_gdt_table); -+ - /* Networking helper routines. */ - EXPORT_SYMBOL(csum_partial_copy_generic); -+EXPORT_SYMBOL(csum_partial_copy_generic_to_user); -+EXPORT_SYMBOL(csum_partial_copy_generic_from_user); - - EXPORT_SYMBOL(__get_user_1); - EXPORT_SYMBOL(__get_user_2); -@@ -36,3 +40,7 @@ EXPORT_SYMBOL(strstr); - - EXPORT_SYMBOL(csum_partial); - EXPORT_SYMBOL(empty_zero_page); -+ -+#ifdef CONFIG_PAX_KERNEXEC -+EXPORT_SYMBOL(__LOAD_PHYSICAL_ADDR); -+#endif -diff -urNp linux-3.0.4/arch/x86/kernel/i8259.c linux-3.0.4/arch/x86/kernel/i8259.c ---- linux-3.0.4/arch/x86/kernel/i8259.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/i8259.c 2011-08-23 21:47:55.000000000 -0400 -@@ -210,7 +210,7 @@ spurious_8259A_irq: - "spurious 8259A interrupt: IRQ%d.\n", irq); - spurious_irq_mask |= irqmask; - } -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - /* - * Theoretically we do not have to handle this IRQ, - * but in Linux this does not cause problems and is -diff -urNp linux-3.0.4/arch/x86/kernel/init_task.c linux-3.0.4/arch/x86/kernel/init_task.c ---- linux-3.0.4/arch/x86/kernel/init_task.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/init_task.c 2011-08-23 21:47:55.000000000 -0400 -@@ -20,8 +20,7 @@ static struct sighand_struct init_sighan - * way process stacks are handled. This is done by having a special - * "init_task" linker map entry.. - */ --union thread_union init_thread_union __init_task_data = -- { INIT_THREAD_INFO(init_task) }; -+union thread_union init_thread_union __init_task_data; - - /* - * Initial task structure. -@@ -38,5 +37,5 @@ EXPORT_SYMBOL(init_task); - * section. Since TSS's are completely CPU-local, we want them - * on exact cacheline boundaries, to eliminate cacheline ping-pong. - */ --DEFINE_PER_CPU_SHARED_ALIGNED(struct tss_struct, init_tss) = INIT_TSS; -- -+struct tss_struct init_tss[NR_CPUS] ____cacheline_internodealigned_in_smp = { [0 ... NR_CPUS-1] = INIT_TSS }; -+EXPORT_SYMBOL(init_tss); -diff -urNp linux-3.0.4/arch/x86/kernel/ioport.c linux-3.0.4/arch/x86/kernel/ioport.c ---- linux-3.0.4/arch/x86/kernel/ioport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ioport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6,6 +6,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -28,6 +29,12 @@ asmlinkage long sys_ioperm(unsigned long - - if ((from + num <= from) || (from + num > IO_BITMAP_BITS)) - return -EINVAL; -+#ifdef CONFIG_GRKERNSEC_IO -+ if (turn_on && grsec_disable_privio) { -+ gr_handle_ioperm(); -+ return -EPERM; -+ } -+#endif - if (turn_on && !capable(CAP_SYS_RAWIO)) - return -EPERM; - -@@ -54,7 +61,7 @@ asmlinkage long sys_ioperm(unsigned long - * because the ->io_bitmap_max value must match the bitmap - * contents: - */ -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - - if (turn_on) - bitmap_clear(t->io_bitmap_ptr, from, num); -@@ -102,6 +109,12 @@ long sys_iopl(unsigned int level, struct - return -EINVAL; - /* Trying to gain more privileges? */ - if (level > old) { -+#ifdef CONFIG_GRKERNSEC_IO -+ if (grsec_disable_privio) { -+ gr_handle_iopl(); -+ return -EPERM; -+ } -+#endif - if (!capable(CAP_SYS_RAWIO)) - return -EPERM; - } -diff -urNp linux-3.0.4/arch/x86/kernel/irq_32.c linux-3.0.4/arch/x86/kernel/irq_32.c ---- linux-3.0.4/arch/x86/kernel/irq_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/irq_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ static int check_stack_overflow(void) - __asm__ __volatile__("andl %%esp,%0" : - "=r" (sp) : "0" (THREAD_SIZE - 1)); - -- return sp < (sizeof(struct thread_info) + STACK_WARN); -+ return sp < STACK_WARN; - } - - static void print_stack_overflow(void) -@@ -54,8 +54,8 @@ static inline void print_stack_overflow( - * per-CPU IRQ handling contexts (thread information and stack) - */ - union irq_ctx { -- struct thread_info tinfo; -- u32 stack[THREAD_SIZE/sizeof(u32)]; -+ unsigned long previous_esp; -+ u32 stack[THREAD_SIZE/sizeof(u32)]; - } __attribute__((aligned(THREAD_SIZE))); - - static DEFINE_PER_CPU(union irq_ctx *, hardirq_ctx); -@@ -75,10 +75,9 @@ static void call_on_stack(void *func, vo - static inline int - execute_on_irq_stack(int overflow, struct irq_desc *desc, int irq) - { -- union irq_ctx *curctx, *irqctx; -+ union irq_ctx *irqctx; - u32 *isp, arg1, arg2; - -- curctx = (union irq_ctx *) current_thread_info(); - irqctx = __this_cpu_read(hardirq_ctx); - - /* -@@ -87,21 +86,16 @@ execute_on_irq_stack(int overflow, struc - * handler) we can't do that and just have to keep using the - * current stack (which is the irq stack already after all) - */ -- if (unlikely(curctx == irqctx)) -+ if (unlikely((void *)current_stack_pointer - (void *)irqctx < THREAD_SIZE)) - return 0; - - /* build the stack frame on the IRQ stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -- irqctx->tinfo.task = curctx->tinfo.task; -- irqctx->tinfo.previous_esp = current_stack_pointer; -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); -+ irqctx->previous_esp = current_stack_pointer; - -- /* -- * Copy the softirq bits in preempt_count so that the -- * softirq checks work in the hardirq context. -- */ -- irqctx->tinfo.preempt_count = -- (irqctx->tinfo.preempt_count & ~SOFTIRQ_MASK) | -- (curctx->tinfo.preempt_count & SOFTIRQ_MASK); -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(MAKE_MM_SEG(0)); -+#endif - - if (unlikely(overflow)) - call_on_stack(print_stack_overflow, isp); -@@ -113,6 +107,11 @@ execute_on_irq_stack(int overflow, struc - : "0" (irq), "1" (desc), "2" (isp), - "D" (desc->handle_irq) - : "memory", "cc", "ecx"); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - return 1; - } - -@@ -121,29 +120,11 @@ execute_on_irq_stack(int overflow, struc - */ - void __cpuinit irq_ctx_init(int cpu) - { -- union irq_ctx *irqctx; -- - if (per_cpu(hardirq_ctx, cpu)) - return; - -- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), -- THREAD_FLAGS, -- THREAD_ORDER)); -- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); -- irqctx->tinfo.cpu = cpu; -- irqctx->tinfo.preempt_count = HARDIRQ_OFFSET; -- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); -- -- per_cpu(hardirq_ctx, cpu) = irqctx; -- -- irqctx = page_address(alloc_pages_node(cpu_to_node(cpu), -- THREAD_FLAGS, -- THREAD_ORDER)); -- memset(&irqctx->tinfo, 0, sizeof(struct thread_info)); -- irqctx->tinfo.cpu = cpu; -- irqctx->tinfo.addr_limit = MAKE_MM_SEG(0); -- -- per_cpu(softirq_ctx, cpu) = irqctx; -+ per_cpu(hardirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); -+ per_cpu(softirq_ctx, cpu) = page_address(alloc_pages_node(cpu_to_node(cpu), THREAD_FLAGS, THREAD_ORDER)); - - printk(KERN_DEBUG "CPU %u irqstacks, hard=%p soft=%p\n", - cpu, per_cpu(hardirq_ctx, cpu), per_cpu(softirq_ctx, cpu)); -@@ -152,7 +133,6 @@ void __cpuinit irq_ctx_init(int cpu) - asmlinkage void do_softirq(void) - { - unsigned long flags; -- struct thread_info *curctx; - union irq_ctx *irqctx; - u32 *isp; - -@@ -162,15 +142,22 @@ asmlinkage void do_softirq(void) - local_irq_save(flags); - - if (local_softirq_pending()) { -- curctx = current_thread_info(); - irqctx = __this_cpu_read(softirq_ctx); -- irqctx->tinfo.task = curctx->task; -- irqctx->tinfo.previous_esp = current_stack_pointer; -+ irqctx->previous_esp = current_stack_pointer; - - /* build the stack frame on the softirq stack */ -- isp = (u32 *) ((char *)irqctx + sizeof(*irqctx)); -+ isp = (u32 *) ((char *)irqctx + sizeof(*irqctx) - 8); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(MAKE_MM_SEG(0)); -+#endif - - call_on_stack(__do_softirq, isp); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - /* - * Shouldn't happen, we returned above if in_interrupt(): - */ -diff -urNp linux-3.0.4/arch/x86/kernel/irq.c linux-3.0.4/arch/x86/kernel/irq.c ---- linux-3.0.4/arch/x86/kernel/irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ - #include - #include - --atomic_t irq_err_count; -+atomic_unchecked_t irq_err_count; - - /* Function pointer for generic interrupt vector handling */ - void (*x86_platform_ipi_callback)(void) = NULL; -@@ -116,9 +116,9 @@ int arch_show_interrupts(struct seq_file - seq_printf(p, "%10u ", per_cpu(mce_poll_count, j)); - seq_printf(p, " Machine check polls\n"); - #endif -- seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read(&irq_err_count)); -+ seq_printf(p, "%*s: %10u\n", prec, "ERR", atomic_read_unchecked(&irq_err_count)); - #if defined(CONFIG_X86_IO_APIC) -- seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read(&irq_mis_count)); -+ seq_printf(p, "%*s: %10u\n", prec, "MIS", atomic_read_unchecked(&irq_mis_count)); - #endif - return 0; - } -@@ -158,10 +158,10 @@ u64 arch_irq_stat_cpu(unsigned int cpu) - - u64 arch_irq_stat(void) - { -- u64 sum = atomic_read(&irq_err_count); -+ u64 sum = atomic_read_unchecked(&irq_err_count); - - #ifdef CONFIG_X86_IO_APIC -- sum += atomic_read(&irq_mis_count); -+ sum += atomic_read_unchecked(&irq_mis_count); - #endif - return sum; - } -diff -urNp linux-3.0.4/arch/x86/kernel/kgdb.c linux-3.0.4/arch/x86/kernel/kgdb.c ---- linux-3.0.4/arch/x86/kernel/kgdb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kgdb.c 2011-08-23 21:47:55.000000000 -0400 -@@ -124,11 +124,11 @@ char *dbg_get_reg(int regno, void *mem, - #ifdef CONFIG_X86_32 - switch (regno) { - case GDB_SS: -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - *(unsigned long *)mem = __KERNEL_DS; - break; - case GDB_SP: -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - *(unsigned long *)mem = kernel_stack_pointer(regs); - break; - case GDB_GS: -@@ -473,12 +473,12 @@ int kgdb_arch_handle_exception(int e_vec - case 'k': - /* clear the trace bit */ - linux_regs->flags &= ~X86_EFLAGS_TF; -- atomic_set(&kgdb_cpu_doing_single_step, -1); -+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, -1); - - /* set the trace bit if we're stepping */ - if (remcomInBuffer[0] == 's') { - linux_regs->flags |= X86_EFLAGS_TF; -- atomic_set(&kgdb_cpu_doing_single_step, -+ atomic_set_unchecked(&kgdb_cpu_doing_single_step, - raw_smp_processor_id()); - } - -@@ -534,7 +534,7 @@ static int __kgdb_notify(struct die_args - return NOTIFY_DONE; - - case DIE_DEBUG: -- if (atomic_read(&kgdb_cpu_doing_single_step) != -1) { -+ if (atomic_read_unchecked(&kgdb_cpu_doing_single_step) != -1) { - if (user_mode(regs)) - return single_step_cont(regs, args); - break; -diff -urNp linux-3.0.4/arch/x86/kernel/kprobes.c linux-3.0.4/arch/x86/kernel/kprobes.c ---- linux-3.0.4/arch/x86/kernel/kprobes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kprobes.c 2011-08-23 21:47:55.000000000 -0400 -@@ -115,8 +115,11 @@ static void __kprobes __synthesize_relat - } __attribute__((packed)) *insn; - - insn = (struct __arch_relative_insn *)from; -+ -+ pax_open_kernel(); - insn->raddr = (s32)((long)(to) - ((long)(from) + 5)); - insn->op = op; -+ pax_close_kernel(); - } - - /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/ -@@ -153,7 +156,7 @@ static int __kprobes can_boost(kprobe_op - kprobe_opcode_t opcode; - kprobe_opcode_t *orig_opcodes = opcodes; - -- if (search_exception_tables((unsigned long)opcodes)) -+ if (search_exception_tables(ktva_ktla((unsigned long)opcodes))) - return 0; /* Page fault may occur on this address. */ - - retry: -@@ -314,7 +317,9 @@ static int __kprobes __copy_instruction( - } - } - insn_get_length(&insn); -+ pax_open_kernel(); - memcpy(dest, insn.kaddr, insn.length); -+ pax_close_kernel(); - - #ifdef CONFIG_X86_64 - if (insn_rip_relative(&insn)) { -@@ -338,7 +343,9 @@ static int __kprobes __copy_instruction( - (u8 *) dest; - BUG_ON((s64) (s32) newdisp != newdisp); /* Sanity check. */ - disp = (u8 *) dest + insn_offset_displacement(&insn); -+ pax_open_kernel(); - *(s32 *) disp = (s32) newdisp; -+ pax_close_kernel(); - } - #endif - return insn.length; -@@ -352,12 +359,12 @@ static void __kprobes arch_copy_kprobe(s - */ - __copy_instruction(p->ainsn.insn, p->addr, 0); - -- if (can_boost(p->addr)) -+ if (can_boost(ktla_ktva(p->addr))) - p->ainsn.boostable = 0; - else - p->ainsn.boostable = -1; - -- p->opcode = *p->addr; -+ p->opcode = *(ktla_ktva(p->addr)); - } - - int __kprobes arch_prepare_kprobe(struct kprobe *p) -@@ -474,7 +481,7 @@ static void __kprobes setup_singlestep(s - * nor set current_kprobe, because it doesn't use single - * stepping. - */ -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - preempt_enable_no_resched(); - return; - } -@@ -493,7 +500,7 @@ static void __kprobes setup_singlestep(s - if (p->opcode == BREAKPOINT_INSTRUCTION) - regs->ip = (unsigned long)p->addr; - else -- regs->ip = (unsigned long)p->ainsn.insn; -+ regs->ip = ktva_ktla((unsigned long)p->ainsn.insn); - } - - /* -@@ -572,7 +579,7 @@ static int __kprobes kprobe_handler(stru - setup_singlestep(p, regs, kcb, 0); - return 1; - } -- } else if (*addr != BREAKPOINT_INSTRUCTION) { -+ } else if (*(kprobe_opcode_t *)ktla_ktva((unsigned long)addr) != BREAKPOINT_INSTRUCTION) { - /* - * The breakpoint instruction was removed right - * after we hit it. Another cpu has removed -@@ -817,7 +824,7 @@ static void __kprobes resume_execution(s - struct pt_regs *regs, struct kprobe_ctlblk *kcb) - { - unsigned long *tos = stack_addr(regs); -- unsigned long copy_ip = (unsigned long)p->ainsn.insn; -+ unsigned long copy_ip = ktva_ktla((unsigned long)p->ainsn.insn); - unsigned long orig_ip = (unsigned long)p->addr; - kprobe_opcode_t *insn = p->ainsn.insn; - -@@ -999,7 +1006,7 @@ int __kprobes kprobe_exceptions_notify(s - struct die_args *args = data; - int ret = NOTIFY_DONE; - -- if (args->regs && user_mode_vm(args->regs)) -+ if (args->regs && user_mode(args->regs)) - return ret; - - switch (val) { -@@ -1381,7 +1388,7 @@ int __kprobes arch_prepare_optimized_kpr - * Verify if the address gap is in 2GB range, because this uses - * a relative jump. - */ -- rel = (long)op->optinsn.insn - (long)op->kp.addr + RELATIVEJUMP_SIZE; -+ rel = (long)op->optinsn.insn - ktla_ktva((long)op->kp.addr) + RELATIVEJUMP_SIZE; - if (abs(rel) > 0x7fffffff) - return -ERANGE; - -@@ -1402,11 +1409,11 @@ int __kprobes arch_prepare_optimized_kpr - synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op); - - /* Set probe function call */ -- synthesize_relcall(buf + TMPL_CALL_IDX, optimized_callback); -+ synthesize_relcall(buf + TMPL_CALL_IDX, ktla_ktva(optimized_callback)); - - /* Set returning jmp instruction at the tail of out-of-line buffer */ - synthesize_reljump(buf + TMPL_END_IDX + op->optinsn.size, -- (u8 *)op->kp.addr + op->optinsn.size); -+ (u8 *)ktla_ktva(op->kp.addr) + op->optinsn.size); - - flush_icache_range((unsigned long) buf, - (unsigned long) buf + TMPL_END_IDX + -@@ -1428,7 +1435,7 @@ static void __kprobes setup_optimize_kpr - ((long)op->kp.addr + RELATIVEJUMP_SIZE)); - - /* Backup instructions which will be replaced by jump address */ -- memcpy(op->optinsn.copied_insn, op->kp.addr + INT3_SIZE, -+ memcpy(op->optinsn.copied_insn, ktla_ktva(op->kp.addr) + INT3_SIZE, - RELATIVE_ADDR_SIZE); - - insn_buf[0] = RELATIVEJUMP_OPCODE; -diff -urNp linux-3.0.4/arch/x86/kernel/kvm.c linux-3.0.4/arch/x86/kernel/kvm.c ---- linux-3.0.4/arch/x86/kernel/kvm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/kvm.c 2011-08-24 18:10:12.000000000 -0400 -@@ -426,6 +426,7 @@ static void __init paravirt_ops_setup(vo - pv_mmu_ops.set_pud = kvm_set_pud; - #if PAGETABLE_LEVELS == 4 - pv_mmu_ops.set_pgd = kvm_set_pgd; -+ pv_mmu_ops.set_pgd_batched = kvm_set_pgd; - #endif - #endif - pv_mmu_ops.flush_tlb_user = kvm_flush_tlb; -diff -urNp linux-3.0.4/arch/x86/kernel/ldt.c linux-3.0.4/arch/x86/kernel/ldt.c ---- linux-3.0.4/arch/x86/kernel/ldt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ldt.c 2011-08-23 21:47:55.000000000 -0400 -@@ -67,13 +67,13 @@ static int alloc_ldt(mm_context_t *pc, i - if (reload) { - #ifdef CONFIG_SMP - preempt_disable(); -- load_LDT(pc); -+ load_LDT_nolock(pc); - if (!cpumask_equal(mm_cpumask(current->mm), - cpumask_of(smp_processor_id()))) - smp_call_function(flush_ldt, current->mm, 1); - preempt_enable(); - #else -- load_LDT(pc); -+ load_LDT_nolock(pc); - #endif - } - if (oldsize) { -@@ -95,7 +95,7 @@ static inline int copy_ldt(mm_context_t - return err; - - for (i = 0; i < old->size; i++) -- write_ldt_entry(new->ldt, i, old->ldt + i * LDT_ENTRY_SIZE); -+ write_ldt_entry(new->ldt, i, old->ldt + i); - return 0; - } - -@@ -116,6 +116,24 @@ int init_new_context(struct task_struct - retval = copy_ldt(&mm->context, &old_mm->context); - mutex_unlock(&old_mm->context.lock); - } -+ -+ if (tsk == current) { -+ mm->context.vdso = 0; -+ -+#ifdef CONFIG_X86_32 -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ mm->context.user_cs_base = 0UL; -+ mm->context.user_cs_limit = ~0UL; -+ -+#if defined(CONFIG_PAX_PAGEEXEC) && defined(CONFIG_SMP) -+ cpus_clear(mm->context.cpu_user_cs_mask); -+#endif -+ -+#endif -+#endif -+ -+ } -+ - return retval; - } - -@@ -230,6 +248,13 @@ static int write_ldt(void __user *ptr, u - } - } - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && (ldt_info.contents & MODIFY_LDT_CONTENTS_CODE)) { -+ error = -EINVAL; -+ goto out_unlock; -+ } -+#endif -+ - fill_ldt(&ldt, &ldt_info); - if (oldmode) - ldt.avl = 0; -diff -urNp linux-3.0.4/arch/x86/kernel/machine_kexec_32.c linux-3.0.4/arch/x86/kernel/machine_kexec_32.c ---- linux-3.0.4/arch/x86/kernel/machine_kexec_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/machine_kexec_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -27,7 +27,7 @@ - #include - #include - --static void set_idt(void *newidt, __u16 limit) -+static void set_idt(struct desc_struct *newidt, __u16 limit) - { - struct desc_ptr curidt; - -@@ -39,7 +39,7 @@ static void set_idt(void *newidt, __u16 - } - - --static void set_gdt(void *newgdt, __u16 limit) -+static void set_gdt(struct desc_struct *newgdt, __u16 limit) - { - struct desc_ptr curgdt; - -@@ -217,7 +217,7 @@ void machine_kexec(struct kimage *image) - } - - control_page = page_address(image->control_code_page); -- memcpy(control_page, relocate_kernel, KEXEC_CONTROL_CODE_MAX_SIZE); -+ memcpy(control_page, (void *)ktla_ktva((unsigned long)relocate_kernel), KEXEC_CONTROL_CODE_MAX_SIZE); - - relocate_kernel_ptr = control_page; - page_list[PA_CONTROL_PAGE] = __pa(control_page); -diff -urNp linux-3.0.4/arch/x86/kernel/microcode_intel.c linux-3.0.4/arch/x86/kernel/microcode_intel.c ---- linux-3.0.4/arch/x86/kernel/microcode_intel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/microcode_intel.c 2011-08-23 21:47:55.000000000 -0400 -@@ -440,13 +440,13 @@ static enum ucode_state request_microcod - - static int get_ucode_user(void *to, const void *from, size_t n) - { -- return copy_from_user(to, from, n); -+ return copy_from_user(to, (__force const void __user *)from, n); - } - - static enum ucode_state - request_microcode_user(int cpu, const void __user *buf, size_t size) - { -- return generic_load_microcode(cpu, (void *)buf, size, &get_ucode_user); -+ return generic_load_microcode(cpu, (__force void *)buf, size, &get_ucode_user); - } - - static void microcode_fini_cpu(int cpu) -diff -urNp linux-3.0.4/arch/x86/kernel/module.c linux-3.0.4/arch/x86/kernel/module.c ---- linux-3.0.4/arch/x86/kernel/module.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/module.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,21 +36,66 @@ - #define DEBUGP(fmt...) - #endif - --void *module_alloc(unsigned long size) -+static inline void *__module_alloc(unsigned long size, pgprot_t prot) - { - if (PAGE_ALIGN(size) > MODULES_LEN) - return NULL; - return __vmalloc_node_range(size, 1, MODULES_VADDR, MODULES_END, -- GFP_KERNEL | __GFP_HIGHMEM, PAGE_KERNEL_EXEC, -+ GFP_KERNEL | __GFP_HIGHMEM | __GFP_ZERO, prot, - -1, __builtin_return_address(0)); - } - -+void *module_alloc(unsigned long size) -+{ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return __module_alloc(size, PAGE_KERNEL); -+#else -+ return __module_alloc(size, PAGE_KERNEL_EXEC); -+#endif -+ -+} -+ - /* Free memory returned from module_alloc */ - void module_free(struct module *mod, void *module_region) - { - vfree(module_region); - } - -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_32 -+void *module_alloc_exec(unsigned long size) -+{ -+ struct vm_struct *area; -+ -+ if (size == 0) -+ return NULL; -+ -+ area = __get_vm_area(size, VM_ALLOC, (unsigned long)&MODULES_EXEC_VADDR, (unsigned long)&MODULES_EXEC_END); -+ return area ? area->addr : NULL; -+} -+EXPORT_SYMBOL(module_alloc_exec); -+ -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ vunmap(module_region); -+} -+EXPORT_SYMBOL(module_free_exec); -+#else -+void module_free_exec(struct module *mod, void *module_region) -+{ -+ module_free(mod, module_region); -+} -+EXPORT_SYMBOL(module_free_exec); -+ -+void *module_alloc_exec(unsigned long size) -+{ -+ return __module_alloc(size, PAGE_KERNEL_RX); -+} -+EXPORT_SYMBOL(module_alloc_exec); -+#endif -+#endif -+ - /* We don't need anything special. */ - int module_frob_arch_sections(Elf_Ehdr *hdr, - Elf_Shdr *sechdrs, -@@ -70,14 +115,16 @@ int apply_relocate(Elf32_Shdr *sechdrs, - unsigned int i; - Elf32_Rel *rel = (void *)sechdrs[relsec].sh_addr; - Elf32_Sym *sym; -- uint32_t *location; -+ uint32_t *plocation, location; - - DEBUGP("Applying relocate section %u to %u\n", relsec, - sechdrs[relsec].sh_info); - for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) { - /* This is where to make the change */ -- location = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr -- + rel[i].r_offset; -+ plocation = (void *)sechdrs[sechdrs[relsec].sh_info].sh_addr + rel[i].r_offset; -+ location = (uint32_t)plocation; -+ if (sechdrs[sechdrs[relsec].sh_info].sh_flags & SHF_EXECINSTR) -+ plocation = ktla_ktva((void *)plocation); - /* This is the symbol it is referring to. Note that all - undefined symbols have been resolved. */ - sym = (Elf32_Sym *)sechdrs[symindex].sh_addr -@@ -86,11 +133,15 @@ int apply_relocate(Elf32_Shdr *sechdrs, - switch (ELF32_R_TYPE(rel[i].r_info)) { - case R_386_32: - /* We add the value into the location given */ -- *location += sym->st_value; -+ pax_open_kernel(); -+ *plocation += sym->st_value; -+ pax_close_kernel(); - break; - case R_386_PC32: - /* Add the value, subtract its postition */ -- *location += sym->st_value - (uint32_t)location; -+ pax_open_kernel(); -+ *plocation += sym->st_value - location; -+ pax_close_kernel(); - break; - default: - printk(KERN_ERR "module %s: Unknown relocation: %u\n", -@@ -146,21 +197,30 @@ int apply_relocate_add(Elf64_Shdr *sechd - case R_X86_64_NONE: - break; - case R_X86_64_64: -+ pax_open_kernel(); - *(u64 *)loc = val; -+ pax_close_kernel(); - break; - case R_X86_64_32: -+ pax_open_kernel(); - *(u32 *)loc = val; -+ pax_close_kernel(); - if (val != *(u32 *)loc) - goto overflow; - break; - case R_X86_64_32S: -+ pax_open_kernel(); - *(s32 *)loc = val; -+ pax_close_kernel(); - if ((s64)val != *(s32 *)loc) - goto overflow; - break; - case R_X86_64_PC32: - val -= (u64)loc; -+ pax_open_kernel(); - *(u32 *)loc = val; -+ pax_close_kernel(); -+ - #if 0 - if ((s64)val != *(s32 *)loc) - goto overflow; -diff -urNp linux-3.0.4/arch/x86/kernel/paravirt.c linux-3.0.4/arch/x86/kernel/paravirt.c ---- linux-3.0.4/arch/x86/kernel/paravirt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/paravirt.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,9 @@ u64 _paravirt_ident_64(u64 x) - { - return x; - } -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) -+PV_CALLEE_SAVE_REGS_THUNK(_paravirt_ident_64); -+#endif - - void __init default_banner(void) - { -@@ -122,7 +125,7 @@ unsigned paravirt_patch_jmp(void *insnbu - * corresponding structure. */ - static void *get_call_destination(u8 type) - { -- struct paravirt_patch_template tmpl = { -+ const struct paravirt_patch_template tmpl = { - .pv_init_ops = pv_init_ops, - .pv_time_ops = pv_time_ops, - .pv_cpu_ops = pv_cpu_ops, -@@ -133,6 +136,9 @@ static void *get_call_destination(u8 typ - .pv_lock_ops = pv_lock_ops, - #endif - }; -+ -+ pax_track_stack(); -+ - return *((void **)&tmpl + type); - } - -@@ -145,15 +151,19 @@ unsigned paravirt_patch_default(u8 type, - if (opfunc == NULL) - /* If there's no function, patch it with a ud2a (BUG) */ - ret = paravirt_patch_insns(insnbuf, len, ud2a, ud2a+sizeof(ud2a)); -- else if (opfunc == _paravirt_nop) -+ else if (opfunc == (void *)_paravirt_nop) - /* If the operation is a nop, then nop the callsite */ - ret = paravirt_patch_nop(); - - /* identity functions just return their single argument */ -- else if (opfunc == _paravirt_ident_32) -+ else if (opfunc == (void *)_paravirt_ident_32) - ret = paravirt_patch_ident_32(insnbuf, len); -- else if (opfunc == _paravirt_ident_64) -+ else if (opfunc == (void *)_paravirt_ident_64) - ret = paravirt_patch_ident_64(insnbuf, len); -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) -+ else if (opfunc == (void *)__raw_callee_save__paravirt_ident_64) -+ ret = paravirt_patch_ident_64(insnbuf, len); -+#endif - - else if (type == PARAVIRT_PATCH(pv_cpu_ops.iret) || - type == PARAVIRT_PATCH(pv_cpu_ops.irq_enable_sysexit) || -@@ -178,7 +188,7 @@ unsigned paravirt_patch_insns(void *insn - if (insn_len > len || start == NULL) - insn_len = len; - else -- memcpy(insnbuf, start, insn_len); -+ memcpy(insnbuf, ktla_ktva(start), insn_len); - - return insn_len; - } -@@ -294,22 +304,22 @@ void arch_flush_lazy_mmu_mode(void) - preempt_enable(); - } - --struct pv_info pv_info = { -+struct pv_info pv_info __read_only = { - .name = "bare hardware", - .paravirt_enabled = 0, - .kernel_rpl = 0, - .shared_kernel_pmd = 1, /* Only used when CONFIG_X86_PAE is set */ - }; - --struct pv_init_ops pv_init_ops = { -+struct pv_init_ops pv_init_ops __read_only = { - .patch = native_patch, - }; - --struct pv_time_ops pv_time_ops = { -+struct pv_time_ops pv_time_ops __read_only = { - .sched_clock = native_sched_clock, - }; - --struct pv_irq_ops pv_irq_ops = { -+struct pv_irq_ops pv_irq_ops __read_only = { - .save_fl = __PV_IS_CALLEE_SAVE(native_save_fl), - .restore_fl = __PV_IS_CALLEE_SAVE(native_restore_fl), - .irq_disable = __PV_IS_CALLEE_SAVE(native_irq_disable), -@@ -321,7 +331,7 @@ struct pv_irq_ops pv_irq_ops = { - #endif - }; - --struct pv_cpu_ops pv_cpu_ops = { -+struct pv_cpu_ops pv_cpu_ops __read_only = { - .cpuid = native_cpuid, - .get_debugreg = native_get_debugreg, - .set_debugreg = native_set_debugreg, -@@ -382,21 +392,26 @@ struct pv_cpu_ops pv_cpu_ops = { - .end_context_switch = paravirt_nop, - }; - --struct pv_apic_ops pv_apic_ops = { -+struct pv_apic_ops pv_apic_ops __read_only = { - #ifdef CONFIG_X86_LOCAL_APIC - .startup_ipi_hook = paravirt_nop, - #endif - }; - --#if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) -+#ifdef CONFIG_X86_32 -+#ifdef CONFIG_X86_PAE -+/* 64-bit pagetable entries */ -+#define PTE_IDENT PV_CALLEE_SAVE(_paravirt_ident_64) -+#else - /* 32-bit pagetable entries */ - #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_32) -+#endif - #else - /* 64-bit pagetable entries */ - #define PTE_IDENT __PV_IS_CALLEE_SAVE(_paravirt_ident_64) - #endif - --struct pv_mmu_ops pv_mmu_ops = { -+struct pv_mmu_ops pv_mmu_ops __read_only = { - - .read_cr2 = native_read_cr2, - .write_cr2 = native_write_cr2, -@@ -446,6 +461,7 @@ struct pv_mmu_ops pv_mmu_ops = { - .make_pud = PTE_IDENT, - - .set_pgd = native_set_pgd, -+ .set_pgd_batched = native_set_pgd_batched, - #endif - #endif /* PAGETABLE_LEVELS >= 3 */ - -@@ -465,6 +481,12 @@ struct pv_mmu_ops pv_mmu_ops = { - }, - - .set_fixmap = native_set_fixmap, -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ .pax_open_kernel = native_pax_open_kernel, -+ .pax_close_kernel = native_pax_close_kernel, -+#endif -+ - }; - - EXPORT_SYMBOL_GPL(pv_time_ops); -diff -urNp linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c ---- linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/paravirt-spinlocks.c 2011-08-23 21:47:55.000000000 -0400 -@@ -13,7 +13,7 @@ default_spin_lock_flags(arch_spinlock_t - arch_spin_lock(lock); - } - --struct pv_lock_ops pv_lock_ops = { -+struct pv_lock_ops pv_lock_ops __read_only = { - #ifdef CONFIG_SMP - .spin_is_locked = __ticket_spin_is_locked, - .spin_is_contended = __ticket_spin_is_contended, -diff -urNp linux-3.0.4/arch/x86/kernel/pci-iommu_table.c linux-3.0.4/arch/x86/kernel/pci-iommu_table.c ---- linux-3.0.4/arch/x86/kernel/pci-iommu_table.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/pci-iommu_table.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2,7 +2,7 @@ - #include - #include - #include -- -+#include - - #define DEBUG 1 - -@@ -51,6 +51,8 @@ void __init check_iommu_entries(struct i - { - struct iommu_table_entry *p, *q, *x; - -+ pax_track_stack(); -+ - /* Simple cyclic dependency checker. */ - for (p = start; p < finish; p++) { - q = find_dependents_of(start, finish, p); -diff -urNp linux-3.0.4/arch/x86/kernel/process_32.c linux-3.0.4/arch/x86/kernel/process_32.c ---- linux-3.0.4/arch/x86/kernel/process_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -65,6 +65,7 @@ asmlinkage void ret_from_fork(void) __as - unsigned long thread_saved_pc(struct task_struct *tsk) - { - return ((unsigned long *)tsk->thread.sp)[3]; -+//XXX return tsk->thread.eip; - } - - #ifndef CONFIG_SMP -@@ -126,15 +127,14 @@ void __show_regs(struct pt_regs *regs, i - unsigned long sp; - unsigned short ss, gs; - -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - sp = regs->sp; - ss = regs->ss & 0xffff; -- gs = get_user_gs(regs); - } else { - sp = kernel_stack_pointer(regs); - savesegment(ss, ss); -- savesegment(gs, gs); - } -+ gs = get_user_gs(regs); - - show_regs_common(); - -@@ -196,13 +196,14 @@ int copy_thread(unsigned long clone_flag - struct task_struct *tsk; - int err; - -- childregs = task_pt_regs(p); -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 8; - *childregs = *regs; - childregs->ax = 0; - childregs->sp = sp; - - p->thread.sp = (unsigned long) childregs; - p->thread.sp0 = (unsigned long) (childregs+1); -+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); - - p->thread.ip = (unsigned long) ret_from_fork; - -@@ -292,7 +293,7 @@ __switch_to(struct task_struct *prev_p, - struct thread_struct *prev = &prev_p->thread, - *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - bool preload_fpu; - - /* never put a printk in __switch_to... printk() calls wake_up*() indirectly */ -@@ -327,6 +328,10 @@ __switch_to(struct task_struct *prev_p, - */ - lazy_save_gs(prev->gs); - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ __set_fs(task_thread_info(next_p)->addr_limit); -+#endif -+ - /* - * Load the per-thread Thread-Local Storage descriptor. - */ -@@ -362,6 +367,9 @@ __switch_to(struct task_struct *prev_p, - */ - arch_end_context_switch(next_p); - -+ percpu_write(current_task, next_p); -+ percpu_write(current_tinfo, &next_p->tinfo); -+ - if (preload_fpu) - __math_state_restore(); - -@@ -371,8 +379,6 @@ __switch_to(struct task_struct *prev_p, - if (prev->gs | next->gs) - lazy_load_gs(next->gs); - -- percpu_write(current_task, next_p); -- - return prev_p; - } - -@@ -402,4 +408,3 @@ unsigned long get_wchan(struct task_stru - } while (count++ < 16); - return 0; - } -- -diff -urNp linux-3.0.4/arch/x86/kernel/process_64.c linux-3.0.4/arch/x86/kernel/process_64.c ---- linux-3.0.4/arch/x86/kernel/process_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -87,7 +87,7 @@ static void __exit_idle(void) - void exit_idle(void) - { - /* idle loop has pid 0 */ -- if (current->pid) -+ if (task_pid_nr(current)) - return; - __exit_idle(); - } -@@ -260,8 +260,7 @@ int copy_thread(unsigned long clone_flag - struct pt_regs *childregs; - struct task_struct *me = current; - -- childregs = ((struct pt_regs *) -- (THREAD_SIZE + task_stack_page(p))) - 1; -+ childregs = task_stack_page(p) + THREAD_SIZE - sizeof(struct pt_regs) - 16; - *childregs = *regs; - - childregs->ax = 0; -@@ -273,6 +272,7 @@ int copy_thread(unsigned long clone_flag - p->thread.sp = (unsigned long) childregs; - p->thread.sp0 = (unsigned long) (childregs+1); - p->thread.usersp = me->thread.usersp; -+ p->tinfo.lowest_stack = (unsigned long)task_stack_page(p); - - set_tsk_thread_flag(p, TIF_FORK); - -@@ -375,7 +375,7 @@ __switch_to(struct task_struct *prev_p, - struct thread_struct *prev = &prev_p->thread; - struct thread_struct *next = &next_p->thread; - int cpu = smp_processor_id(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - unsigned fsindex, gsindex; - bool preload_fpu; - -@@ -471,10 +471,9 @@ __switch_to(struct task_struct *prev_p, - prev->usersp = percpu_read(old_rsp); - percpu_write(old_rsp, next->usersp); - percpu_write(current_task, next_p); -+ percpu_write(current_tinfo, &next_p->tinfo); - -- percpu_write(kernel_stack, -- (unsigned long)task_stack_page(next_p) + -- THREAD_SIZE - KERNEL_STACK_OFFSET); -+ percpu_write(kernel_stack, next->sp0); - - /* - * Now maybe reload the debug registers and handle I/O bitmaps -@@ -536,12 +535,11 @@ unsigned long get_wchan(struct task_stru - if (!p || p == current || p->state == TASK_RUNNING) - return 0; - stack = (unsigned long)task_stack_page(p); -- if (p->thread.sp < stack || p->thread.sp >= stack+THREAD_SIZE) -+ if (p->thread.sp < stack || p->thread.sp > stack+THREAD_SIZE-16-sizeof(u64)) - return 0; - fp = *(u64 *)(p->thread.sp); - do { -- if (fp < (unsigned long)stack || -- fp >= (unsigned long)stack+THREAD_SIZE) -+ if (fp < stack || fp > stack+THREAD_SIZE-16-sizeof(u64)) - return 0; - ip = *(u64 *)(fp+8); - if (!in_sched_functions(ip)) -diff -urNp linux-3.0.4/arch/x86/kernel/process.c linux-3.0.4/arch/x86/kernel/process.c ---- linux-3.0.4/arch/x86/kernel/process.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/process.c 2011-08-30 18:23:52.000000000 -0400 -@@ -48,16 +48,33 @@ void free_thread_xstate(struct task_stru - - void free_thread_info(struct thread_info *ti) - { -- free_thread_xstate(ti->task); - free_pages((unsigned long)ti, get_order(THREAD_SIZE)); - } - -+static struct kmem_cache *task_struct_cachep; -+ - void arch_task_cache_init(void) - { -- task_xstate_cachep = -- kmem_cache_create("task_xstate", xstate_size, -+ /* create a slab on which task_structs can be allocated */ -+ task_struct_cachep = -+ kmem_cache_create("task_struct", sizeof(struct task_struct), -+ ARCH_MIN_TASKALIGN, SLAB_PANIC | SLAB_NOTRACK, NULL); -+ -+ task_xstate_cachep = -+ kmem_cache_create("task_xstate", xstate_size, - __alignof__(union thread_xstate), -- SLAB_PANIC | SLAB_NOTRACK, NULL); -+ SLAB_PANIC | SLAB_NOTRACK | SLAB_USERCOPY, NULL); -+} -+ -+struct task_struct *alloc_task_struct_node(int node) -+{ -+ return kmem_cache_alloc_node(task_struct_cachep, GFP_KERNEL, node); -+} -+ -+void free_task_struct(struct task_struct *task) -+{ -+ free_thread_xstate(task); -+ kmem_cache_free(task_struct_cachep, task); - } - - /* -@@ -70,7 +87,7 @@ void exit_thread(void) - unsigned long *bp = t->io_bitmap_ptr; - - if (bp) { -- struct tss_struct *tss = &per_cpu(init_tss, get_cpu()); -+ struct tss_struct *tss = init_tss + get_cpu(); - - t->io_bitmap_ptr = NULL; - clear_thread_flag(TIF_IO_BITMAP); -@@ -106,7 +123,7 @@ void show_regs_common(void) - - printk(KERN_CONT "\n"); - printk(KERN_DEFAULT "Pid: %d, comm: %.20s %s %s %.*s", -- current->pid, current->comm, print_tainted(), -+ task_pid_nr(current), current->comm, print_tainted(), - init_utsname()->release, - (int)strcspn(init_utsname()->version, " "), - init_utsname()->version); -@@ -120,6 +137,9 @@ void flush_thread(void) - { - struct task_struct *tsk = current; - -+#if defined(CONFIG_X86_32) && !defined(CONFIG_CC_STACKPROTECTOR) && !defined(CONFIG_PAX_MEMORY_UDEREF) -+ loadsegment(gs, 0); -+#endif - flush_ptrace_hw_breakpoint(tsk); - memset(tsk->thread.tls_array, 0, sizeof(tsk->thread.tls_array)); - /* -@@ -282,10 +302,10 @@ int kernel_thread(int (*fn)(void *), voi - regs.di = (unsigned long) arg; - - #ifdef CONFIG_X86_32 -- regs.ds = __USER_DS; -- regs.es = __USER_DS; -+ regs.ds = __KERNEL_DS; -+ regs.es = __KERNEL_DS; - regs.fs = __KERNEL_PERCPU; -- regs.gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, regs.gs); - #else - regs.ss = __KERNEL_DS; - #endif -@@ -403,7 +423,7 @@ void default_idle(void) - EXPORT_SYMBOL(default_idle); - #endif - --void stop_this_cpu(void *dummy) -+__noreturn void stop_this_cpu(void *dummy) - { - local_irq_disable(); - /* -@@ -668,16 +688,37 @@ static int __init idle_setup(char *str) - } - early_param("idle", idle_setup); - --unsigned long arch_align_stack(unsigned long sp) -+#ifdef CONFIG_PAX_RANDKSTACK -+void pax_randomize_kstack(struct pt_regs *regs) - { -- if (!(current->personality & ADDR_NO_RANDOMIZE) && randomize_va_space) -- sp -= get_random_int() % 8192; -- return sp & ~0xf; --} -+ struct thread_struct *thread = ¤t->thread; -+ unsigned long time; - --unsigned long arch_randomize_brk(struct mm_struct *mm) --{ -- unsigned long range_end = mm->brk + 0x02000000; -- return randomize_range(mm->brk, range_end, 0) ? : mm->brk; --} -+ if (!randomize_va_space) -+ return; -+ -+ if (v8086_mode(regs)) -+ return; - -+ rdtscl(time); -+ -+ /* P4 seems to return a 0 LSB, ignore it */ -+#ifdef CONFIG_MPENTIUM4 -+ time &= 0x3EUL; -+ time <<= 2; -+#elif defined(CONFIG_X86_64) -+ time &= 0xFUL; -+ time <<= 4; -+#else -+ time &= 0x1FUL; -+ time <<= 3; -+#endif -+ -+ thread->sp0 ^= time; -+ load_sp0(init_tss + smp_processor_id(), thread); -+ -+#ifdef CONFIG_X86_64 -+ percpu_write(kernel_stack, thread->sp0); -+#endif -+} -+#endif -diff -urNp linux-3.0.4/arch/x86/kernel/ptrace.c linux-3.0.4/arch/x86/kernel/ptrace.c ---- linux-3.0.4/arch/x86/kernel/ptrace.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/ptrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -821,7 +821,7 @@ long arch_ptrace(struct task_struct *chi - unsigned long addr, unsigned long data) - { - int ret; -- unsigned long __user *datap = (unsigned long __user *)data; -+ unsigned long __user *datap = (__force unsigned long __user *)data; - - switch (request) { - /* read the word at location addr in the USER area. */ -@@ -906,14 +906,14 @@ long arch_ptrace(struct task_struct *chi - if ((int) addr < 0) - return -EIO; - ret = do_get_thread_area(child, addr, -- (struct user_desc __user *)data); -+ (__force struct user_desc __user *) data); - break; - - case PTRACE_SET_THREAD_AREA: - if ((int) addr < 0) - return -EIO; - ret = do_set_thread_area(child, addr, -- (struct user_desc __user *)data, 0); -+ (__force struct user_desc __user *) data, 0); - break; - #endif - -@@ -1330,7 +1330,7 @@ static void fill_sigtrap_info(struct tas - memset(info, 0, sizeof(*info)); - info->si_signo = SIGTRAP; - info->si_code = si_code; -- info->si_addr = user_mode_vm(regs) ? (void __user *)regs->ip : NULL; -+ info->si_addr = user_mode(regs) ? (__force void __user *)regs->ip : NULL; - } - - void user_single_step_siginfo(struct task_struct *tsk, -diff -urNp linux-3.0.4/arch/x86/kernel/pvclock.c linux-3.0.4/arch/x86/kernel/pvclock.c ---- linux-3.0.4/arch/x86/kernel/pvclock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/pvclock.c 2011-08-23 21:47:55.000000000 -0400 -@@ -81,11 +81,11 @@ unsigned long pvclock_tsc_khz(struct pvc - return pv_tsc_khz; - } - --static atomic64_t last_value = ATOMIC64_INIT(0); -+static atomic64_unchecked_t last_value = ATOMIC64_INIT(0); - - void pvclock_resume(void) - { -- atomic64_set(&last_value, 0); -+ atomic64_set_unchecked(&last_value, 0); - } - - cycle_t pvclock_clocksource_read(struct pvclock_vcpu_time_info *src) -@@ -121,11 +121,11 @@ cycle_t pvclock_clocksource_read(struct - * updating at the same time, and one of them could be slightly behind, - * making the assumption that last_value always go forward fail to hold. - */ -- last = atomic64_read(&last_value); -+ last = atomic64_read_unchecked(&last_value); - do { - if (ret < last) - return last; -- last = atomic64_cmpxchg(&last_value, last, ret); -+ last = atomic64_cmpxchg_unchecked(&last_value, last, ret); - } while (unlikely(last != ret)); - - return ret; -diff -urNp linux-3.0.4/arch/x86/kernel/reboot.c linux-3.0.4/arch/x86/kernel/reboot.c ---- linux-3.0.4/arch/x86/kernel/reboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/reboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -35,7 +35,7 @@ void (*pm_power_off)(void); - EXPORT_SYMBOL(pm_power_off); - - static const struct desc_ptr no_idt = {}; --static int reboot_mode; -+static unsigned short reboot_mode; - enum reboot_type reboot_type = BOOT_ACPI; - int reboot_force; - -@@ -315,13 +315,17 @@ core_initcall(reboot_init); - extern const unsigned char machine_real_restart_asm[]; - extern const u64 machine_real_restart_gdt[3]; - --void machine_real_restart(unsigned int type) -+__noreturn void machine_real_restart(unsigned int type) - { - void *restart_va; - unsigned long restart_pa; -- void (*restart_lowmem)(unsigned int); -+ void (* __noreturn restart_lowmem)(unsigned int); - u64 *lowmem_gdt; - -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) -+ struct desc_struct *gdt; -+#endif -+ - local_irq_disable(); - - /* Write zero to CMOS register number 0x0f, which the BIOS POST -@@ -347,14 +351,14 @@ void machine_real_restart(unsigned int t - boot)". This seems like a fairly standard thing that gets set by - REBOOT.COM programs, and the previous reset routine did this - too. */ -- *((unsigned short *)0x472) = reboot_mode; -+ *(unsigned short *)(__va(0x472)) = reboot_mode; - - /* Patch the GDT in the low memory trampoline */ - lowmem_gdt = TRAMPOLINE_SYM(machine_real_restart_gdt); - - restart_va = TRAMPOLINE_SYM(machine_real_restart_asm); - restart_pa = virt_to_phys(restart_va); -- restart_lowmem = (void (*)(unsigned int))restart_pa; -+ restart_lowmem = (void *)restart_pa; - - /* GDT[0]: GDT self-pointer */ - lowmem_gdt[0] = -@@ -365,7 +369,33 @@ void machine_real_restart(unsigned int t - GDT_ENTRY(0x009b, restart_pa, 0xffff); - - /* Jump to the identity-mapped low memory code */ -+ -+#if defined(CONFIG_X86_32) && (defined(CONFIG_PAX_KERNEXEC) || defined(CONFIG_PAX_MEMORY_UDEREF)) -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ pax_open_kernel(); -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ gdt[GDT_ENTRY_KERNEL_DS].type = 3; -+ gdt[GDT_ENTRY_KERNEL_DS].limit = 0xf; -+ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r" (__KERNEL_DS) : "memory"); -+#endif -+#ifdef CONFIG_PAX_KERNEXEC -+ gdt[GDT_ENTRY_KERNEL_CS].base0 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].base1 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].base2 = 0; -+ gdt[GDT_ENTRY_KERNEL_CS].limit0 = 0xffff; -+ gdt[GDT_ENTRY_KERNEL_CS].limit = 0xf; -+ gdt[GDT_ENTRY_KERNEL_CS].g = 1; -+#endif -+ pax_close_kernel(); -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ asm volatile("push %0; push %1; lret\n" : : "i" (__KERNEL_CS), "rm" (restart_lowmem), "a" (type)); -+ unreachable(); -+#else - restart_lowmem(type); -+#endif -+ - } - #ifdef CONFIG_APM_MODULE - EXPORT_SYMBOL(machine_real_restart); -@@ -523,7 +553,7 @@ void __attribute__((weak)) mach_reboot_f - * try to force a triple fault and then cycle between hitting the keyboard - * controller and doing that - */ --static void native_machine_emergency_restart(void) -+__noreturn static void native_machine_emergency_restart(void) - { - int i; - int attempt = 0; -@@ -647,13 +677,13 @@ void native_machine_shutdown(void) - #endif - } - --static void __machine_emergency_restart(int emergency) -+static __noreturn void __machine_emergency_restart(int emergency) - { - reboot_emergency = emergency; - machine_ops.emergency_restart(); - } - --static void native_machine_restart(char *__unused) -+static __noreturn void native_machine_restart(char *__unused) - { - printk("machine restart\n"); - -@@ -662,7 +692,7 @@ static void native_machine_restart(char - __machine_emergency_restart(0); - } - --static void native_machine_halt(void) -+static __noreturn void native_machine_halt(void) - { - /* stop other cpus and apics */ - machine_shutdown(); -@@ -673,7 +703,7 @@ static void native_machine_halt(void) - stop_this_cpu(NULL); - } - --static void native_machine_power_off(void) -+__noreturn static void native_machine_power_off(void) - { - if (pm_power_off) { - if (!reboot_force) -@@ -682,6 +712,7 @@ static void native_machine_power_off(voi - } - /* a fallback in case there is no PM info available */ - tboot_shutdown(TB_SHUTDOWN_HALT); -+ unreachable(); - } - - struct machine_ops machine_ops = { -diff -urNp linux-3.0.4/arch/x86/kernel/setup.c linux-3.0.4/arch/x86/kernel/setup.c ---- linux-3.0.4/arch/x86/kernel/setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -650,7 +650,7 @@ static void __init trim_bios_range(void) - * area (640->1Mb) as ram even though it is not. - * take them out. - */ -- e820_remove_range(BIOS_BEGIN, BIOS_END - BIOS_BEGIN, E820_RAM, 1); -+ e820_remove_range(ISA_START_ADDRESS, ISA_END_ADDRESS - ISA_START_ADDRESS, E820_RAM, 1); - sanitize_e820_map(e820.map, ARRAY_SIZE(e820.map), &e820.nr_map); - } - -@@ -773,14 +773,14 @@ void __init setup_arch(char **cmdline_p) - - if (!boot_params.hdr.root_flags) - root_mountflags &= ~MS_RDONLY; -- init_mm.start_code = (unsigned long) _text; -- init_mm.end_code = (unsigned long) _etext; -+ init_mm.start_code = ktla_ktva((unsigned long) _text); -+ init_mm.end_code = ktla_ktva((unsigned long) _etext); - init_mm.end_data = (unsigned long) _edata; - init_mm.brk = _brk_end; - -- code_resource.start = virt_to_phys(_text); -- code_resource.end = virt_to_phys(_etext)-1; -- data_resource.start = virt_to_phys(_etext); -+ code_resource.start = virt_to_phys(ktla_ktva(_text)); -+ code_resource.end = virt_to_phys(ktla_ktva(_etext))-1; -+ data_resource.start = virt_to_phys(_sdata); - data_resource.end = virt_to_phys(_edata)-1; - bss_resource.start = virt_to_phys(&__bss_start); - bss_resource.end = virt_to_phys(&__bss_stop)-1; -diff -urNp linux-3.0.4/arch/x86/kernel/setup_percpu.c linux-3.0.4/arch/x86/kernel/setup_percpu.c ---- linux-3.0.4/arch/x86/kernel/setup_percpu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/setup_percpu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -21,19 +21,17 @@ - #include - #include - --DEFINE_PER_CPU(int, cpu_number); -+#ifdef CONFIG_SMP -+DEFINE_PER_CPU(unsigned int, cpu_number); - EXPORT_PER_CPU_SYMBOL(cpu_number); -+#endif - --#ifdef CONFIG_X86_64 - #define BOOT_PERCPU_OFFSET ((unsigned long)__per_cpu_load) --#else --#define BOOT_PERCPU_OFFSET 0 --#endif - - DEFINE_PER_CPU(unsigned long, this_cpu_off) = BOOT_PERCPU_OFFSET; - EXPORT_PER_CPU_SYMBOL(this_cpu_off); - --unsigned long __per_cpu_offset[NR_CPUS] __read_mostly = { -+unsigned long __per_cpu_offset[NR_CPUS] __read_only = { - [0 ... NR_CPUS-1] = BOOT_PERCPU_OFFSET, - }; - EXPORT_SYMBOL(__per_cpu_offset); -@@ -155,10 +153,10 @@ static inline void setup_percpu_segment( - { - #ifdef CONFIG_X86_32 - struct desc_struct gdt; -+ unsigned long base = per_cpu_offset(cpu); - -- pack_descriptor(&gdt, per_cpu_offset(cpu), 0xFFFFF, -- 0x2 | DESCTYPE_S, 0x8); -- gdt.s = 1; -+ pack_descriptor(&gdt, base, (VMALLOC_END - base - 1) >> PAGE_SHIFT, -+ 0x83 | DESCTYPE_S, 0xC); - write_gdt_entry(get_cpu_gdt_table(cpu), - GDT_ENTRY_PERCPU, &gdt, DESCTYPE_S); - #endif -@@ -207,6 +205,11 @@ void __init setup_per_cpu_areas(void) - /* alrighty, percpu areas up and running */ - delta = (unsigned long)pcpu_base_addr - (unsigned long)__per_cpu_start; - for_each_possible_cpu(cpu) { -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_X86_32 -+ unsigned long canary = per_cpu(stack_canary.canary, cpu); -+#endif -+#endif - per_cpu_offset(cpu) = delta + pcpu_unit_offsets[cpu]; - per_cpu(this_cpu_off, cpu) = per_cpu_offset(cpu); - per_cpu(cpu_number, cpu) = cpu; -@@ -247,6 +250,12 @@ void __init setup_per_cpu_areas(void) - */ - set_cpu_numa_node(cpu, early_cpu_to_node(cpu)); - #endif -+#ifdef CONFIG_CC_STACKPROTECTOR -+#ifdef CONFIG_X86_32 -+ if (!cpu) -+ per_cpu(stack_canary.canary, cpu) = canary; -+#endif -+#endif - /* - * Up to this point, the boot CPU has been using .init.data - * area. Reload any changed state for the boot CPU. -diff -urNp linux-3.0.4/arch/x86/kernel/signal.c linux-3.0.4/arch/x86/kernel/signal.c ---- linux-3.0.4/arch/x86/kernel/signal.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/signal.c 2011-08-23 21:48:14.000000000 -0400 -@@ -198,7 +198,7 @@ static unsigned long align_sigframe(unsi - * Align the stack pointer according to the i386 ABI, - * i.e. so that on function entry ((sp + 4) & 15) == 0. - */ -- sp = ((sp + 4) & -16ul) - 4; -+ sp = ((sp - 12) & -16ul) - 4; - #else /* !CONFIG_X86_32 */ - sp = round_down(sp, 16) - 8; - #endif -@@ -249,11 +249,11 @@ get_sigframe(struct k_sigaction *ka, str - * Return an always-bogus address instead so we will die with SIGSEGV. - */ - if (onsigstack && !likely(on_sig_stack(sp))) -- return (void __user *)-1L; -+ return (__force void __user *)-1L; - - /* save i387 state */ - if (used_math() && save_i387_xstate(*fpstate) < 0) -- return (void __user *)-1L; -+ return (__force void __user *)-1L; - - return (void __user *)sp; - } -@@ -308,9 +308,9 @@ __setup_frame(int sig, struct k_sigactio - } - - if (current->mm->context.vdso) -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); -+ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, sigreturn); - else -- restorer = &frame->retcode; -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - -@@ -324,7 +324,7 @@ __setup_frame(int sig, struct k_sigactio - * reasons and because gdb uses it as a signature to notice - * signal handler stack frames. - */ -- err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode); -+ err |= __put_user(*((u64 *)&retcode), (u64 __user *)frame->retcode); - - if (err) - return -EFAULT; -@@ -378,7 +378,10 @@ static int __setup_rt_frame(int sig, str - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - /* Set up to return from userspace. */ -- restorer = VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ if (current->mm->context.vdso) -+ restorer = (__force void __user *)VDSO32_SYMBOL(current->mm->context.vdso, rt_sigreturn); -+ else -+ restorer = (void __user *)&frame->retcode; - if (ka->sa.sa_flags & SA_RESTORER) - restorer = ka->sa.sa_restorer; - put_user_ex(restorer, &frame->pretcode); -@@ -390,7 +393,7 @@ static int __setup_rt_frame(int sig, str - * reasons and because gdb uses it as a signature to notice - * signal handler stack frames. - */ -- put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode); -+ put_user_ex(*((u64 *)&rt_retcode), (u64 __user *)frame->retcode); - } put_user_catch(err); - - if (err) -@@ -769,6 +772,8 @@ static void do_signal(struct pt_regs *re - int signr; - sigset_t *oldset; - -+ pax_track_stack(); -+ - /* - * We want the common case to go fast, which is why we may in certain - * cases get here from kernel mode. Just return without doing anything -@@ -776,7 +781,7 @@ static void do_signal(struct pt_regs *re - * X86_32: vm86 regs switched out by assembly code before reaching - * here, so testing against kernel CS suffices. - */ -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - return; - - if (current_thread_info()->status & TS_RESTORE_SIGMASK) -diff -urNp linux-3.0.4/arch/x86/kernel/smpboot.c linux-3.0.4/arch/x86/kernel/smpboot.c ---- linux-3.0.4/arch/x86/kernel/smpboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/smpboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -709,17 +709,20 @@ static int __cpuinit do_boot_cpu(int api - set_idle_for_cpu(cpu, c_idle.idle); - do_rest: - per_cpu(current_task, cpu) = c_idle.idle; -+ per_cpu(current_tinfo, cpu) = &c_idle.idle->tinfo; - #ifdef CONFIG_X86_32 - /* Stack for startup_32 can be just as for start_secondary onwards */ - irq_ctx_init(cpu); - #else - clear_tsk_thread_flag(c_idle.idle, TIF_FORK); - initial_gs = per_cpu_offset(cpu); -- per_cpu(kernel_stack, cpu) = -- (unsigned long)task_stack_page(c_idle.idle) - -- KERNEL_STACK_OFFSET + THREAD_SIZE; -+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(c_idle.idle) - 16 + THREAD_SIZE; - #endif -+ -+ pax_open_kernel(); - early_gdt_descr.address = (unsigned long)get_cpu_gdt_table(cpu); -+ pax_close_kernel(); -+ - initial_code = (unsigned long)start_secondary; - stack_start = c_idle.idle->thread.sp; - -@@ -861,6 +864,12 @@ int __cpuinit native_cpu_up(unsigned int - - per_cpu(cpu_state, cpu) = CPU_UP_PREPARE; - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ clone_pgd_range(get_cpu_pgd(cpu) + KERNEL_PGD_BOUNDARY, -+ swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ KERNEL_PGD_PTRS); -+#endif -+ - err = do_boot_cpu(apicid, cpu); - if (err) { - pr_debug("do_boot_cpu failed %d\n", err); -diff -urNp linux-3.0.4/arch/x86/kernel/step.c linux-3.0.4/arch/x86/kernel/step.c ---- linux-3.0.4/arch/x86/kernel/step.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/step.c 2011-08-23 21:47:55.000000000 -0400 -@@ -27,10 +27,10 @@ unsigned long convert_ip_to_linear(struc - struct desc_struct *desc; - unsigned long base; - -- seg &= ~7UL; -+ seg >>= 3; - - mutex_lock(&child->mm->context.lock); -- if (unlikely((seg >> 3) >= child->mm->context.size)) -+ if (unlikely(seg >= child->mm->context.size)) - addr = -1L; /* bogus selector, access would fault */ - else { - desc = child->mm->context.ldt + seg; -@@ -42,7 +42,8 @@ unsigned long convert_ip_to_linear(struc - addr += base; - } - mutex_unlock(&child->mm->context.lock); -- } -+ } else if (seg == __KERNEL_CS || seg == __KERNEXEC_KERNEL_CS) -+ addr = ktla_ktva(addr); - - return addr; - } -@@ -53,6 +54,9 @@ static int is_setting_trap_flag(struct t - unsigned char opcode[15]; - unsigned long addr = convert_ip_to_linear(child, regs); - -+ if (addr == -EINVAL) -+ return 0; -+ - copied = access_process_vm(child, addr, opcode, sizeof(opcode), 0); - for (i = 0; i < copied; i++) { - switch (opcode[i]) { -@@ -74,7 +78,7 @@ static int is_setting_trap_flag(struct t - - #ifdef CONFIG_X86_64 - case 0x40 ... 0x4f: -- if (regs->cs != __USER_CS) -+ if ((regs->cs & 0xffff) != __USER_CS) - /* 32-bit mode: register increment */ - return 0; - /* 64-bit mode: REX prefix */ -diff -urNp linux-3.0.4/arch/x86/kernel/syscall_table_32.S linux-3.0.4/arch/x86/kernel/syscall_table_32.S ---- linux-3.0.4/arch/x86/kernel/syscall_table_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/syscall_table_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -1,3 +1,4 @@ -+.section .rodata,"a",@progbits - ENTRY(sys_call_table) - .long sys_restart_syscall /* 0 - old "setup()" system call, used for restarting */ - .long sys_exit -diff -urNp linux-3.0.4/arch/x86/kernel/sys_i386_32.c linux-3.0.4/arch/x86/kernel/sys_i386_32.c ---- linux-3.0.4/arch/x86/kernel/sys_i386_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/sys_i386_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -24,17 +24,224 @@ - - #include - --/* -- * Do a system call from kernel instead of calling sys_execve so we -- * end up with proper pt_regs. -- */ --int kernel_execve(const char *filename, -- const char *const argv[], -- const char *const envp[]) -+int i386_mmap_check(unsigned long addr, unsigned long len, unsigned long flags) - { -- long __res; -- asm volatile ("int $0x80" -- : "=a" (__res) -- : "0" (__NR_execve), "b" (filename), "c" (argv), "d" (envp) : "memory"); -- return __res; -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (current->mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ if (len > pax_task_size || addr > pax_task_size - len) -+ return -EINVAL; -+ -+ return 0; -+} -+ -+unsigned long -+arch_get_unmapped_area(struct file *filp, unsigned long addr, -+ unsigned long len, unsigned long pgoff, unsigned long flags) -+{ -+ struct mm_struct *mm = current->mm; -+ struct vm_area_struct *vma; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ if (pax_task_size - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } -+ } -+ if (len > mm->cached_hole_size) { -+ start_addr = addr = mm->free_area_cache; -+ } else { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ } -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE) && start_addr >= mm->mmap_base) { -+ start_addr = 0x00110000UL; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ start_addr += mm->delta_mmap & 0x03FFF000UL; -+#endif -+ -+ if (mm->start_brk <= start_addr && start_addr < mm->mmap_base) -+ start_addr = addr = mm->mmap_base; -+ else -+ addr = start_addr; -+ } -+#endif -+ -+full_search: -+ for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { -+ /* At this point: (!vma || addr < vma->vm_end). */ -+ if (pax_task_size - len < addr) { -+ /* -+ * Start a new search - just in case we missed -+ * some holes. -+ */ -+ if (start_addr != mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ return -ENOMEM; -+ } -+ if (check_heap_stack_gap(vma, addr, len)) -+ break; -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ addr = vma->vm_end; -+ if (mm->start_brk <= addr && addr < mm->mmap_base) { -+ start_addr = addr = mm->mmap_base; -+ mm->cached_hole_size = 0; -+ goto full_search; -+ } -+ } -+ -+ /* -+ * Remember the place where we stopped the search: -+ */ -+ mm->free_area_cache = addr + len; -+ return addr; -+} -+ -+unsigned long -+arch_get_unmapped_area_topdown(struct file *filp, const unsigned long addr0, -+ const unsigned long len, const unsigned long pgoff, -+ const unsigned long flags) -+{ -+ struct vm_area_struct *vma; -+ struct mm_struct *mm = current->mm; -+ unsigned long base = mm->mmap_base, addr = addr0, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ /* requested length too big for entire address space */ -+ if (len > pax_task_size) -+ return -ENOMEM; -+ -+ if (flags & MAP_FIXED) -+ return addr; -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if (!(__supported_pte_mask & _PAGE_NX) && (mm->pax_flags & MF_PAX_PAGEEXEC) && (flags & MAP_EXECUTABLE)) -+ goto bottomup; -+#endif -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ -+ /* requesting a specific address */ -+ if (addr) { -+ addr = PAGE_ALIGN(addr); -+ if (pax_task_size - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } -+ } -+ -+ /* check if free_area_cache is useful for us */ -+ if (len <= mm->cached_hole_size) { -+ mm->cached_hole_size = 0; -+ mm->free_area_cache = mm->mmap_base; -+ } -+ -+ /* either no address requested or can't fit in requested address hole */ -+ addr = mm->free_area_cache; -+ -+ /* make sure it can fit in the remaining address space */ -+ if (addr > len) { -+ vma = find_vma(mm, addr-len); -+ if (check_heap_stack_gap(vma, addr - len, len)) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr-len); -+ } -+ -+ if (mm->mmap_base < len) -+ goto bottomup; -+ -+ addr = mm->mmap_base-len; -+ -+ do { -+ /* -+ * Lookup failure means no vma is above this address, -+ * else if new region fits below vma->vm_start, -+ * return with success: -+ */ -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ /* remember the address as a hint for next time */ -+ return (mm->free_area_cache = addr); -+ -+ /* remember the largest hole we saw so far */ -+ if (addr + mm->cached_hole_size < vma->vm_start) -+ mm->cached_hole_size = vma->vm_start - addr; -+ -+ /* try just below the current vma->vm_start */ -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); -+ -+bottomup: -+ /* -+ * A failed mmap() very likely causes application failure, -+ * so fall back to the bottom-up function here. This scenario -+ * can happen with large stack limits and large mmap() -+ * allocations. -+ */ -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; -+ mm->cached_hole_size = ~0UL; -+ addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); -+ /* -+ * Restore the topdown base: -+ */ -+ mm->mmap_base = base; -+ mm->free_area_cache = base; -+ mm->cached_hole_size = ~0UL; -+ -+ return addr; - } -diff -urNp linux-3.0.4/arch/x86/kernel/sys_x86_64.c linux-3.0.4/arch/x86/kernel/sys_x86_64.c ---- linux-3.0.4/arch/x86/kernel/sys_x86_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/sys_x86_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -32,8 +32,8 @@ out: - return error; - } - --static void find_start_end(unsigned long flags, unsigned long *begin, -- unsigned long *end) -+static void find_start_end(struct mm_struct *mm, unsigned long flags, -+ unsigned long *begin, unsigned long *end) - { - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) { - unsigned long new_begin; -@@ -52,7 +52,7 @@ static void find_start_end(unsigned long - *begin = new_begin; - } - } else { -- *begin = TASK_UNMAPPED_BASE; -+ *begin = mm->mmap_base; - *end = TASK_SIZE; - } - } -@@ -69,16 +69,19 @@ arch_get_unmapped_area(struct file *filp - if (flags & MAP_FIXED) - return addr; - -- find_start_end(flags, &begin, &end); -+ find_start_end(mm, flags, &begin, &end); - - if (len > end) - return -ENOMEM; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - if (addr) { - addr = PAGE_ALIGN(addr); - vma = find_vma(mm, addr); -- if (end - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (end - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (((flags & MAP_32BIT) || test_thread_flag(TIF_IA32)) -@@ -106,7 +109,7 @@ full_search: - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* - * Remember the place where we stopped the search: - */ -@@ -128,7 +131,7 @@ arch_get_unmapped_area_topdown(struct fi - { - struct vm_area_struct *vma; - struct mm_struct *mm = current->mm; -- unsigned long addr = addr0; -+ unsigned long base = mm->mmap_base, addr = addr0; - - /* requested length too big for entire address space */ - if (len > TASK_SIZE) -@@ -141,13 +144,18 @@ arch_get_unmapped_area_topdown(struct fi - if (!test_thread_flag(TIF_IA32) && (flags & MAP_32BIT)) - goto bottomup; - -+#ifdef CONFIG_PAX_RANDMMAP -+ if (!(mm->pax_flags & MF_PAX_RANDMMAP)) -+#endif -+ - /* requesting a specific address */ - if (addr) { - addr = PAGE_ALIGN(addr); -- vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -- return addr; -+ if (TASK_SIZE - len >= addr) { -+ vma = find_vma(mm, addr); -+ if (check_heap_stack_gap(vma, addr, len)) -+ return addr; -+ } - } - - /* check if free_area_cache is useful for us */ -@@ -162,7 +170,7 @@ arch_get_unmapped_area_topdown(struct fi - /* make sure it can fit in the remaining address space */ - if (addr > len) { - vma = find_vma(mm, addr-len); -- if (!vma || addr <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr - len, len)) - /* remember the address as a hint for next time */ - return mm->free_area_cache = addr-len; - } -@@ -179,7 +187,7 @@ arch_get_unmapped_area_topdown(struct fi - * return with success: - */ - vma = find_vma(mm, addr); -- if (!vma || addr+len <= vma->vm_start) -+ if (check_heap_stack_gap(vma, addr, len)) - /* remember the address as a hint for next time */ - return mm->free_area_cache = addr; - -@@ -188,8 +196,8 @@ arch_get_unmapped_area_topdown(struct fi - mm->cached_hole_size = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = vma->vm_start-len; -- } while (len < vma->vm_start); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - bottomup: - /* -@@ -198,13 +206,21 @@ bottomup: - * can happen with large stack limits and large mmap() - * allocations. - */ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; -- mm->free_area_cache = TASK_UNMAPPED_BASE; - addr = arch_get_unmapped_area(filp, addr0, len, pgoff, flags); - /* - * Restore the topdown base: - */ -- mm->free_area_cache = mm->mmap_base; -+ mm->mmap_base = base; -+ mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - - return addr; -diff -urNp linux-3.0.4/arch/x86/kernel/tboot.c linux-3.0.4/arch/x86/kernel/tboot.c ---- linux-3.0.4/arch/x86/kernel/tboot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/tboot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -217,7 +217,7 @@ static int tboot_setup_sleep(void) - - void tboot_shutdown(u32 shutdown_type) - { -- void (*shutdown)(void); -+ void (* __noreturn shutdown)(void); - - if (!tboot_enabled()) - return; -@@ -239,7 +239,7 @@ void tboot_shutdown(u32 shutdown_type) - - switch_to_tboot_pt(); - -- shutdown = (void(*)(void))(unsigned long)tboot->shutdown_entry; -+ shutdown = (void *)tboot->shutdown_entry; - shutdown(); - - /* should not reach here */ -@@ -296,7 +296,7 @@ void tboot_sleep(u8 sleep_state, u32 pm1 - tboot_shutdown(acpi_shutdown_map[sleep_state]); - } - --static atomic_t ap_wfs_count; -+static atomic_unchecked_t ap_wfs_count; - - static int tboot_wait_for_aps(int num_aps) - { -@@ -320,9 +320,9 @@ static int __cpuinit tboot_cpu_callback( - { - switch (action) { - case CPU_DYING: -- atomic_inc(&ap_wfs_count); -+ atomic_inc_unchecked(&ap_wfs_count); - if (num_online_cpus() == 1) -- if (tboot_wait_for_aps(atomic_read(&ap_wfs_count))) -+ if (tboot_wait_for_aps(atomic_read_unchecked(&ap_wfs_count))) - return NOTIFY_BAD; - break; - } -@@ -341,7 +341,7 @@ static __init int tboot_late_init(void) - - tboot_create_trampoline(); - -- atomic_set(&ap_wfs_count, 0); -+ atomic_set_unchecked(&ap_wfs_count, 0); - register_hotcpu_notifier(&tboot_cpu_notifier); - return 0; - } -diff -urNp linux-3.0.4/arch/x86/kernel/time.c linux-3.0.4/arch/x86/kernel/time.c ---- linux-3.0.4/arch/x86/kernel/time.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/time.c 2011-08-23 21:47:55.000000000 -0400 -@@ -30,9 +30,9 @@ unsigned long profile_pc(struct pt_regs - { - unsigned long pc = instruction_pointer(regs); - -- if (!user_mode_vm(regs) && in_lock_functions(pc)) { -+ if (!user_mode(regs) && in_lock_functions(pc)) { - #ifdef CONFIG_FRAME_POINTER -- return *(unsigned long *)(regs->bp + sizeof(long)); -+ return ktla_ktva(*(unsigned long *)(regs->bp + sizeof(long))); - #else - unsigned long *sp = - (unsigned long *)kernel_stack_pointer(regs); -@@ -41,11 +41,17 @@ unsigned long profile_pc(struct pt_regs - * or above a saved flags. Eflags has bits 22-31 zero, - * kernel addresses don't. - */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ return ktla_ktva(sp[0]); -+#else - if (sp[0] >> 22) - return sp[0]; - if (sp[1] >> 22) - return sp[1]; - #endif -+ -+#endif - } - return pc; - } -diff -urNp linux-3.0.4/arch/x86/kernel/tls.c linux-3.0.4/arch/x86/kernel/tls.c ---- linux-3.0.4/arch/x86/kernel/tls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/tls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -85,6 +85,11 @@ int do_set_thread_area(struct task_struc - if (idx < GDT_ENTRY_TLS_MIN || idx > GDT_ENTRY_TLS_MAX) - return -EINVAL; - -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((p->mm->pax_flags & MF_PAX_SEGMEXEC) && (info.contents & MODIFY_LDT_CONTENTS_CODE)) -+ return -EINVAL; -+#endif -+ - set_tls_desc(p, idx, &info, 1); - - return 0; -diff -urNp linux-3.0.4/arch/x86/kernel/trampoline_32.S linux-3.0.4/arch/x86/kernel/trampoline_32.S ---- linux-3.0.4/arch/x86/kernel/trampoline_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/trampoline_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -32,6 +32,12 @@ - #include - #include - -+#ifdef CONFIG_PAX_KERNEXEC -+#define ta(X) (X) -+#else -+#define ta(X) ((X) - __PAGE_OFFSET) -+#endif -+ - #ifdef CONFIG_SMP - - .section ".x86_trampoline","a" -@@ -62,7 +68,7 @@ r_base = . - inc %ax # protected mode (PE) bit - lmsw %ax # into protected mode - # flush prefetch and jump to startup_32_smp in arch/i386/kernel/head.S -- ljmpl $__BOOT_CS, $(startup_32_smp-__PAGE_OFFSET) -+ ljmpl $__BOOT_CS, $ta(startup_32_smp) - - # These need to be in the same 64K segment as the above; - # hence we don't use the boot_gdt_descr defined in head.S -diff -urNp linux-3.0.4/arch/x86/kernel/trampoline_64.S linux-3.0.4/arch/x86/kernel/trampoline_64.S ---- linux-3.0.4/arch/x86/kernel/trampoline_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/trampoline_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -90,7 +90,7 @@ startup_32: - movl $__KERNEL_DS, %eax # Initialize the %ds segment register - movl %eax, %ds - -- movl $X86_CR4_PAE, %eax -+ movl $(X86_CR4_PSE | X86_CR4_PAE | X86_CR4_PGE), %eax - movl %eax, %cr4 # Enable PAE mode - - # Setup trampoline 4 level pagetables -@@ -138,7 +138,7 @@ tidt: - # so the kernel can live anywhere - .balign 4 - tgdt: -- .short tgdt_end - tgdt # gdt limit -+ .short tgdt_end - tgdt - 1 # gdt limit - .long tgdt - r_base - .short 0 - .quad 0x00cf9b000000ffff # __KERNEL32_CS -diff -urNp linux-3.0.4/arch/x86/kernel/traps.c linux-3.0.4/arch/x86/kernel/traps.c ---- linux-3.0.4/arch/x86/kernel/traps.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/traps.c 2011-08-23 21:47:55.000000000 -0400 -@@ -70,12 +70,6 @@ asmlinkage int system_call(void); - - /* Do we ignore FPU interrupts ? */ - char ignore_fpu_irq; -- --/* -- * The IDT has to be page-aligned to simplify the Pentium -- * F0 0F bug workaround. -- */ --gate_desc idt_table[NR_VECTORS] __page_aligned_data = { { { { 0, 0 } } }, }; - #endif - - DECLARE_BITMAP(used_vectors, NR_VECTORS); -@@ -117,13 +111,13 @@ static inline void preempt_conditional_c - } - - static void __kprobes --do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, -+do_trap(int trapnr, int signr, const char *str, struct pt_regs *regs, - long error_code, siginfo_t *info) - { - struct task_struct *tsk = current; - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - /* - * traps 0, 1, 3, 4, and 5 should be forwarded to vm86. - * On nmi (interrupt 2), do_trap should not be called. -@@ -134,7 +128,7 @@ do_trap(int trapnr, int signr, char *str - } - #endif - -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto kernel_trap; - - #ifdef CONFIG_X86_32 -@@ -157,7 +151,7 @@ trap_signal: - printk_ratelimit()) { - printk(KERN_INFO - "%s[%d] trap %s ip:%lx sp:%lx error:%lx", -- tsk->comm, tsk->pid, str, -+ tsk->comm, task_pid_nr(tsk), str, - regs->ip, regs->sp, error_code); - print_vma_addr(" in ", regs->ip); - printk("\n"); -@@ -174,8 +168,20 @@ kernel_trap: - if (!fixup_exception(regs)) { - tsk->thread.error_code = error_code; - tsk->thread.trap_no = trapnr; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (trapnr == 12 && ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS)) -+ str = "PAX: suspicious stack segment fault"; -+#endif -+ - die(str, regs, error_code); - } -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ if (trapnr == 4) -+ pax_report_refcount_overflow(regs); -+#endif -+ - return; - - #ifdef CONFIG_X86_32 -@@ -264,14 +270,30 @@ do_general_protection(struct pt_regs *re - conditional_sti(regs); - - #ifdef CONFIG_X86_32 -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - goto gp_in_vm86; - #endif - - tsk = current; -- if (!user_mode(regs)) -+ if (!user_mode_novm(regs)) - goto gp_in_kernel; - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (!(__supported_pte_mask & _PAGE_NX) && tsk->mm && (tsk->mm->pax_flags & MF_PAX_PAGEEXEC)) { -+ struct mm_struct *mm = tsk->mm; -+ unsigned long limit; -+ -+ down_write(&mm->mmap_sem); -+ limit = mm->context.user_cs_limit; -+ if (limit < TASK_SIZE) { -+ track_exec_limit(mm, limit, TASK_SIZE, VM_EXEC); -+ up_write(&mm->mmap_sem); -+ return; -+ } -+ up_write(&mm->mmap_sem); -+ } -+#endif -+ - tsk->thread.error_code = error_code; - tsk->thread.trap_no = 13; - -@@ -304,6 +326,13 @@ gp_in_kernel: - if (notify_die(DIE_GPF, "general protection fault", regs, - error_code, 13, SIGSEGV) == NOTIFY_STOP) - return; -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if ((regs->cs & 0xFFFF) == __KERNEL_CS || (regs->cs & 0xFFFF) == __KERNEXEC_KERNEL_CS) -+ die("PAX: suspicious general protection fault", regs, error_code); -+ else -+#endif -+ - die("general protection fault", regs, error_code); - } - -@@ -433,6 +462,17 @@ static notrace __kprobes void default_do - dotraplinkage notrace __kprobes void - do_nmi(struct pt_regs *regs, long error_code) - { -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ if (!user_mode(regs)) { -+ unsigned long cs = regs->cs & 0xFFFF; -+ unsigned long ip = ktva_ktla(regs->ip); -+ -+ if ((cs == __KERNEL_CS || cs == __KERNEXEC_KERNEL_CS) && ip <= (unsigned long)_etext) -+ regs->ip = ip; -+ } -+#endif -+ - nmi_enter(); - - inc_irq_stat(__nmi_count); -@@ -569,7 +609,7 @@ dotraplinkage void __kprobes do_debug(st - /* It's safe to allow irq's after DR6 has been saved */ - preempt_conditional_sti(regs); - -- if (regs->flags & X86_VM_MASK) { -+ if (v8086_mode(regs)) { - handle_vm86_trap((struct kernel_vm86_regs *) regs, - error_code, 1); - preempt_conditional_cli(regs); -@@ -583,7 +623,7 @@ dotraplinkage void __kprobes do_debug(st - * We already checked v86 mode above, so we can check for kernel mode - * by just checking the CPL of CS. - */ -- if ((dr6 & DR_STEP) && !user_mode(regs)) { -+ if ((dr6 & DR_STEP) && !user_mode_novm(regs)) { - tsk->thread.debugreg6 &= ~DR_STEP; - set_tsk_thread_flag(tsk, TIF_SINGLESTEP); - regs->flags &= ~X86_EFLAGS_TF; -@@ -612,7 +652,7 @@ void math_error(struct pt_regs *regs, in - return; - conditional_sti(regs); - -- if (!user_mode_vm(regs)) -+ if (!user_mode(regs)) - { - if (!fixup_exception(regs)) { - task->thread.error_code = error_code; -@@ -723,7 +763,7 @@ asmlinkage void __attribute__((weak)) sm - void __math_state_restore(void) - { - struct thread_info *thread = current_thread_info(); -- struct task_struct *tsk = thread->task; -+ struct task_struct *tsk = current; - - /* - * Paranoid restore. send a SIGSEGV if we fail to restore the state. -@@ -750,8 +790,7 @@ void __math_state_restore(void) - */ - asmlinkage void math_state_restore(void) - { -- struct thread_info *thread = current_thread_info(); -- struct task_struct *tsk = thread->task; -+ struct task_struct *tsk = current; - - if (!tsk_used_math(tsk)) { - local_irq_enable(); -diff -urNp linux-3.0.4/arch/x86/kernel/verify_cpu.S linux-3.0.4/arch/x86/kernel/verify_cpu.S ---- linux-3.0.4/arch/x86/kernel/verify_cpu.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/verify_cpu.S 2011-08-23 21:48:14.000000000 -0400 -@@ -20,6 +20,7 @@ - * arch/x86/boot/compressed/head_64.S: Boot cpu verification - * arch/x86/kernel/trampoline_64.S: secondary processor verification - * arch/x86/kernel/head_32.S: processor startup -+ * arch/x86/kernel/acpi/realmode/wakeup.S: 32bit processor resume - * - * verify_cpu, returns the status of longmode and SSE in register %eax. - * 0: Success 1: Failure -diff -urNp linux-3.0.4/arch/x86/kernel/vm86_32.c linux-3.0.4/arch/x86/kernel/vm86_32.c ---- linux-3.0.4/arch/x86/kernel/vm86_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vm86_32.c 2011-08-23 21:48:14.000000000 -0400 -@@ -41,6 +41,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -148,7 +149,7 @@ struct pt_regs *save_v86_state(struct ke - do_exit(SIGSEGV); - } - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - current->thread.sp0 = current->thread.saved_sp0; - current->thread.sysenter_cs = __KERNEL_CS; - load_sp0(tss, ¤t->thread); -@@ -208,6 +209,13 @@ int sys_vm86old(struct vm86_struct __use - struct task_struct *tsk; - int tmp, ret = -EPERM; - -+#ifdef CONFIG_GRKERNSEC_VM86 -+ if (!capable(CAP_SYS_RAWIO)) { -+ gr_handle_vm86(); -+ goto out; -+ } -+#endif -+ - tsk = current; - if (tsk->thread.saved_sp0) - goto out; -@@ -238,6 +246,14 @@ int sys_vm86(unsigned long cmd, unsigned - int tmp, ret; - struct vm86plus_struct __user *v86; - -+#ifdef CONFIG_GRKERNSEC_VM86 -+ if (!capable(CAP_SYS_RAWIO)) { -+ gr_handle_vm86(); -+ ret = -EPERM; -+ goto out; -+ } -+#endif -+ - tsk = current; - switch (cmd) { - case VM86_REQUEST_IRQ: -@@ -324,7 +340,7 @@ static void do_sys_vm86(struct kernel_vm - tsk->thread.saved_fs = info->regs32->fs; - tsk->thread.saved_gs = get_user_gs(info->regs32); - -- tss = &per_cpu(init_tss, get_cpu()); -+ tss = init_tss + get_cpu(); - tsk->thread.sp0 = (unsigned long) &info->VM86_TSS_ESP0; - if (cpu_has_sep) - tsk->thread.sysenter_cs = 0; -@@ -529,7 +545,7 @@ static void do_int(struct kernel_vm86_re - goto cannot_handle; - if (i == 0x21 && is_revectored(AH(regs), &KVM86->int21_revectored)) - goto cannot_handle; -- intr_ptr = (unsigned long __user *) (i << 2); -+ intr_ptr = (__force unsigned long __user *) (i << 2); - if (get_user(segoffs, intr_ptr)) - goto cannot_handle; - if ((segoffs >> 16) == BIOSSEG) -diff -urNp linux-3.0.4/arch/x86/kernel/vmlinux.lds.S linux-3.0.4/arch/x86/kernel/vmlinux.lds.S ---- linux-3.0.4/arch/x86/kernel/vmlinux.lds.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vmlinux.lds.S 2011-08-23 21:47:55.000000000 -0400 -@@ -26,6 +26,13 @@ - #include - #include - #include -+#include -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+#define __KERNEL_TEXT_OFFSET (LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR) -+#else -+#define __KERNEL_TEXT_OFFSET 0 -+#endif - - #undef i386 /* in case the preprocessor is a 32bit one */ - -@@ -69,31 +76,46 @@ jiffies_64 = jiffies; - - PHDRS { - text PT_LOAD FLAGS(5); /* R_E */ -+#ifdef CONFIG_X86_32 -+ module PT_LOAD FLAGS(5); /* R_E */ -+#endif -+#ifdef CONFIG_XEN -+ rodata PT_LOAD FLAGS(5); /* R_E */ -+#else -+ rodata PT_LOAD FLAGS(4); /* R__ */ -+#endif - data PT_LOAD FLAGS(6); /* RW_ */ - #ifdef CONFIG_X86_64 - user PT_LOAD FLAGS(5); /* R_E */ -+#endif -+ init.begin PT_LOAD FLAGS(6); /* RW_ */ - #ifdef CONFIG_SMP - percpu PT_LOAD FLAGS(6); /* RW_ */ - #endif -+ text.init PT_LOAD FLAGS(5); /* R_E */ -+ text.exit PT_LOAD FLAGS(5); /* R_E */ - init PT_LOAD FLAGS(7); /* RWE */ --#endif - note PT_NOTE FLAGS(0); /* ___ */ - } - - SECTIONS - { - #ifdef CONFIG_X86_32 -- . = LOAD_OFFSET + LOAD_PHYSICAL_ADDR; -- phys_startup_32 = startup_32 - LOAD_OFFSET; -+ . = LOAD_OFFSET + ____LOAD_PHYSICAL_ADDR; - #else -- . = __START_KERNEL; -- phys_startup_64 = startup_64 - LOAD_OFFSET; -+ . = __START_KERNEL; - #endif - - /* Text and read-only data */ -- .text : AT(ADDR(.text) - LOAD_OFFSET) { -- _text = .; -+ .text (. - __KERNEL_TEXT_OFFSET): AT(ADDR(.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { - /* bootstrapping code */ -+#ifdef CONFIG_X86_32 -+ phys_startup_32 = startup_32 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+#else -+ phys_startup_64 = startup_64 - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+#endif -+ __LOAD_PHYSICAL_ADDR = . - LOAD_OFFSET + __KERNEL_TEXT_OFFSET; -+ _text = .; - HEAD_TEXT - #ifdef CONFIG_X86_32 - . = ALIGN(PAGE_SIZE); -@@ -109,13 +131,47 @@ SECTIONS - IRQENTRY_TEXT - *(.fixup) - *(.gnu.warning) -- /* End of text section */ -- _etext = .; - } :text = 0x9090 - -- NOTES :text :note -+ . += __KERNEL_TEXT_OFFSET; -+ -+#ifdef CONFIG_X86_32 -+ . = ALIGN(PAGE_SIZE); -+ .module.text : AT(ADDR(.module.text) - LOAD_OFFSET) { -+ -+#if defined(CONFIG_PAX_KERNEXEC) && defined(CONFIG_MODULES) -+ MODULES_EXEC_VADDR = .; -+ BYTE(0) -+ . += (CONFIG_PAX_KERNEXEC_MODULE_TEXT * 1024 * 1024); -+ . = ALIGN(HPAGE_SIZE); -+ MODULES_EXEC_END = . - 1; -+#endif -+ -+ } :module -+#endif -+ -+ .text.end : AT(ADDR(.text.end) - LOAD_OFFSET) { -+ /* End of text section */ -+ _etext = . - __KERNEL_TEXT_OFFSET; -+ } -+ -+#ifdef CONFIG_X86_32 -+ . = ALIGN(PAGE_SIZE); -+ .rodata.page_aligned : AT(ADDR(.rodata.page_aligned) - LOAD_OFFSET) { -+ *(.idt) -+ . = ALIGN(PAGE_SIZE); -+ *(.empty_zero_page) -+ *(.initial_pg_fixmap) -+ *(.initial_pg_pmd) -+ *(.initial_page_table) -+ *(.swapper_pg_dir) -+ } :rodata -+#endif -+ -+ . = ALIGN(PAGE_SIZE); -+ NOTES :rodata :note - -- EXCEPTION_TABLE(16) :text = 0x9090 -+ EXCEPTION_TABLE(16) :rodata - - #if defined(CONFIG_DEBUG_RODATA) - /* .text should occupy whole number of pages */ -@@ -127,16 +183,20 @@ SECTIONS - - /* Data */ - .data : AT(ADDR(.data) - LOAD_OFFSET) { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(HPAGE_SIZE); -+#else -+ . = ALIGN(PAGE_SIZE); -+#endif -+ - /* Start of data section */ - _sdata = .; - - /* init_task */ - INIT_TASK_DATA(THREAD_SIZE) - --#ifdef CONFIG_X86_32 -- /* 32 bit has nosave before _edata */ - NOSAVE_DATA --#endif - - PAGE_ALIGNED_DATA(PAGE_SIZE) - -@@ -208,12 +268,19 @@ SECTIONS - #endif /* CONFIG_X86_64 */ - - /* Init code and data - will be freed after init */ -- . = ALIGN(PAGE_SIZE); - .init.begin : AT(ADDR(.init.begin) - LOAD_OFFSET) { -+ BYTE(0) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ . = ALIGN(HPAGE_SIZE); -+#else -+ . = ALIGN(PAGE_SIZE); -+#endif -+ - __init_begin = .; /* paired with __init_end */ -- } -+ } :init.begin - --#if defined(CONFIG_X86_64) && defined(CONFIG_SMP) -+#ifdef CONFIG_SMP - /* - * percpu offsets are zero-based on SMP. PERCPU_VADDR() changes the - * output PHDR, so the next output section - .init.text - should -@@ -222,12 +289,27 @@ SECTIONS - PERCPU_VADDR(INTERNODE_CACHE_BYTES, 0, :percpu) - #endif - -- INIT_TEXT_SECTION(PAGE_SIZE) --#ifdef CONFIG_X86_64 -- :init --#endif -+ . = ALIGN(PAGE_SIZE); -+ init_begin = .; -+ .init.text (. - __KERNEL_TEXT_OFFSET): AT(init_begin - LOAD_OFFSET) { -+ VMLINUX_SYMBOL(_sinittext) = .; -+ INIT_TEXT -+ VMLINUX_SYMBOL(_einittext) = .; -+ . = ALIGN(PAGE_SIZE); -+ } :text.init - -- INIT_DATA_SECTION(16) -+ /* -+ * .exit.text is discard at runtime, not link time, to deal with -+ * references from .altinstructions and .eh_frame -+ */ -+ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET + __KERNEL_TEXT_OFFSET) { -+ EXIT_TEXT -+ . = ALIGN(16); -+ } :text.exit -+ . = init_begin + SIZEOF(.init.text) + SIZEOF(.exit.text); -+ -+ . = ALIGN(PAGE_SIZE); -+ INIT_DATA_SECTION(16) :init - - /* - * Code and data for a variety of lowlevel trampolines, to be -@@ -301,19 +383,12 @@ SECTIONS - } - - . = ALIGN(8); -- /* -- * .exit.text is discard at runtime, not link time, to deal with -- * references from .altinstructions and .eh_frame -- */ -- .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { -- EXIT_TEXT -- } - - .exit.data : AT(ADDR(.exit.data) - LOAD_OFFSET) { - EXIT_DATA - } - --#if !defined(CONFIG_X86_64) || !defined(CONFIG_SMP) -+#ifndef CONFIG_SMP - PERCPU_SECTION(INTERNODE_CACHE_BYTES) - #endif - -@@ -332,16 +407,10 @@ SECTIONS - .smp_locks : AT(ADDR(.smp_locks) - LOAD_OFFSET) { - __smp_locks = .; - *(.smp_locks) -- . = ALIGN(PAGE_SIZE); - __smp_locks_end = .; -+ . = ALIGN(PAGE_SIZE); - } - --#ifdef CONFIG_X86_64 -- .data_nosave : AT(ADDR(.data_nosave) - LOAD_OFFSET) { -- NOSAVE_DATA -- } --#endif -- - /* BSS */ - . = ALIGN(PAGE_SIZE); - .bss : AT(ADDR(.bss) - LOAD_OFFSET) { -@@ -357,6 +426,7 @@ SECTIONS - __brk_base = .; - . += 64 * 1024; /* 64k alignment slop space */ - *(.brk_reservation) /* areas brk users have reserved */ -+ . = ALIGN(HPAGE_SIZE); - __brk_limit = .; - } - -@@ -383,13 +453,12 @@ SECTIONS - * for the boot processor. - */ - #define INIT_PER_CPU(x) init_per_cpu__##x = x + __per_cpu_load --INIT_PER_CPU(gdt_page); - INIT_PER_CPU(irq_stack_union); - - /* - * Build-time check on the image size: - */ --. = ASSERT((_end - _text <= KERNEL_IMAGE_SIZE), -+. = ASSERT((_end - _text - __KERNEL_TEXT_OFFSET <= KERNEL_IMAGE_SIZE), - "kernel image bigger than KERNEL_IMAGE_SIZE"); - - #ifdef CONFIG_SMP -diff -urNp linux-3.0.4/arch/x86/kernel/vsyscall_64.c linux-3.0.4/arch/x86/kernel/vsyscall_64.c ---- linux-3.0.4/arch/x86/kernel/vsyscall_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/vsyscall_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -53,7 +53,7 @@ DEFINE_VVAR(int, vgetcpu_mode); - DEFINE_VVAR(struct vsyscall_gtod_data, vsyscall_gtod_data) = - { - .lock = __SEQLOCK_UNLOCKED(__vsyscall_gtod_data.lock), -- .sysctl_enabled = 1, -+ .sysctl_enabled = 0, - }; - - void update_vsyscall_tz(void) -@@ -231,7 +231,7 @@ static long __vsyscall(3) venosys_1(void - static ctl_table kernel_table2[] = { - { .procname = "vsyscall64", - .data = &vsyscall_gtod_data.sysctl_enabled, .maxlen = sizeof(int), -- .mode = 0644, -+ .mode = 0444, - .proc_handler = proc_dointvec }, - {} - }; -diff -urNp linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c ---- linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/x8664_ksyms_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -29,8 +29,6 @@ EXPORT_SYMBOL(__put_user_8); - EXPORT_SYMBOL(copy_user_generic_string); - EXPORT_SYMBOL(copy_user_generic_unrolled); - EXPORT_SYMBOL(__copy_user_nocache); --EXPORT_SYMBOL(_copy_from_user); --EXPORT_SYMBOL(_copy_to_user); - - EXPORT_SYMBOL(copy_page); - EXPORT_SYMBOL(clear_page); -diff -urNp linux-3.0.4/arch/x86/kernel/xsave.c linux-3.0.4/arch/x86/kernel/xsave.c ---- linux-3.0.4/arch/x86/kernel/xsave.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kernel/xsave.c 2011-08-23 21:47:55.000000000 -0400 -@@ -130,7 +130,7 @@ int check_for_xstate(struct i387_fxsave_ - fx_sw_user->xstate_size > fx_sw_user->extended_size) - return -EINVAL; - -- err = __get_user(magic2, (__u32 *) (((void *)fpstate) + -+ err = __get_user(magic2, (__u32 __user *) (((void __user *)fpstate) + - fx_sw_user->extended_size - - FP_XSTATE_MAGIC2_SIZE)); - if (err) -@@ -267,7 +267,7 @@ fx_only: - * the other extended state. - */ - xrstor_state(init_xstate_buf, pcntxt_mask & ~XSTATE_FPSSE); -- return fxrstor_checking((__force struct i387_fxsave_struct *)buf); -+ return fxrstor_checking((struct i387_fxsave_struct __user *)buf); - } - - /* -@@ -299,7 +299,7 @@ int restore_i387_xstate(void __user *buf - if (use_xsave()) - err = restore_user_xstate(buf); - else -- err = fxrstor_checking((__force struct i387_fxsave_struct *) -+ err = fxrstor_checking((struct i387_fxsave_struct __user *) - buf); - if (unlikely(err)) { - /* -diff -urNp linux-3.0.4/arch/x86/kvm/emulate.c linux-3.0.4/arch/x86/kvm/emulate.c ---- linux-3.0.4/arch/x86/kvm/emulate.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/emulate.c 2011-08-23 21:47:55.000000000 -0400 -@@ -96,7 +96,7 @@ - #define Src2ImmByte (2<<29) - #define Src2One (3<<29) - #define Src2Imm (4<<29) --#define Src2Mask (7<<29) -+#define Src2Mask (7U<<29) - - #define X2(x...) x, x - #define X3(x...) X2(x), x -@@ -207,6 +207,7 @@ struct gprefix { - - #define ____emulate_2op(_op, _src, _dst, _eflags, _x, _y, _suffix, _dsttype) \ - do { \ -+ unsigned long _tmp; \ - __asm__ __volatile__ ( \ - _PRE_EFLAGS("0", "4", "2") \ - _op _suffix " %"_x"3,%1; " \ -@@ -220,8 +221,6 @@ struct gprefix { - /* Raw emulation: instruction has two explicit operands. */ - #define __emulate_2op_nobyte(_op,_src,_dst,_eflags,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ -- \ - switch ((_dst).bytes) { \ - case 2: \ - ____emulate_2op(_op,_src,_dst,_eflags,_wx,_wy,"w",u16);\ -@@ -237,7 +236,6 @@ struct gprefix { - - #define __emulate_2op(_op,_src,_dst,_eflags,_bx,_by,_wx,_wy,_lx,_ly,_qx,_qy) \ - do { \ -- unsigned long _tmp; \ - switch ((_dst).bytes) { \ - case 1: \ - ____emulate_2op(_op,_src,_dst,_eflags,_bx,_by,"b",u8); \ -diff -urNp linux-3.0.4/arch/x86/kvm/lapic.c linux-3.0.4/arch/x86/kvm/lapic.c ---- linux-3.0.4/arch/x86/kvm/lapic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/lapic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -53,7 +53,7 @@ - #define APIC_BUS_CYCLE_NS 1 - - /* #define apic_debug(fmt,arg...) printk(KERN_WARNING fmt,##arg) */ --#define apic_debug(fmt, arg...) -+#define apic_debug(fmt, arg...) do {} while (0) - - #define APIC_LVT_NUM 6 - /* 14 is the version for Xeon and Pentium 8.4.8*/ -diff -urNp linux-3.0.4/arch/x86/kvm/mmu.c linux-3.0.4/arch/x86/kvm/mmu.c ---- linux-3.0.4/arch/x86/kvm/mmu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/mmu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3238,7 +3238,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * - - pgprintk("%s: gpa %llx bytes %d\n", __func__, gpa, bytes); - -- invlpg_counter = atomic_read(&vcpu->kvm->arch.invlpg_counter); -+ invlpg_counter = atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter); - - /* - * Assume that the pte write on a page table of the same type -@@ -3270,7 +3270,7 @@ void kvm_mmu_pte_write(struct kvm_vcpu * - } - - spin_lock(&vcpu->kvm->mmu_lock); -- if (atomic_read(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) -+ if (atomic_read_unchecked(&vcpu->kvm->arch.invlpg_counter) != invlpg_counter) - gentry = 0; - kvm_mmu_free_some_pages(vcpu); - ++vcpu->kvm->stat.mmu_pte_write; -diff -urNp linux-3.0.4/arch/x86/kvm/paging_tmpl.h linux-3.0.4/arch/x86/kvm/paging_tmpl.h ---- linux-3.0.4/arch/x86/kvm/paging_tmpl.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/paging_tmpl.h 2011-08-23 21:48:14.000000000 -0400 -@@ -583,6 +583,8 @@ static int FNAME(page_fault)(struct kvm_ - unsigned long mmu_seq; - bool map_writable; - -+ pax_track_stack(); -+ - pgprintk("%s: addr %lx err %x\n", __func__, addr, error_code); - - r = mmu_topup_memory_caches(vcpu); -@@ -703,7 +705,7 @@ static void FNAME(invlpg)(struct kvm_vcp - if (need_flush) - kvm_flush_remote_tlbs(vcpu->kvm); - -- atomic_inc(&vcpu->kvm->arch.invlpg_counter); -+ atomic_inc_unchecked(&vcpu->kvm->arch.invlpg_counter); - - spin_unlock(&vcpu->kvm->mmu_lock); - -diff -urNp linux-3.0.4/arch/x86/kvm/svm.c linux-3.0.4/arch/x86/kvm/svm.c ---- linux-3.0.4/arch/x86/kvm/svm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/svm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3377,7 +3377,11 @@ static void reload_tss(struct kvm_vcpu * - int cpu = raw_smp_processor_id(); - - struct svm_cpu_data *sd = per_cpu(svm_data, cpu); -+ -+ pax_open_kernel(); - sd->tss_desc->type = 9; /* available 32/64-bit TSS */ -+ pax_close_kernel(); -+ - load_TR_desc(); - } - -@@ -3755,6 +3759,10 @@ static void svm_vcpu_run(struct kvm_vcpu - #endif - #endif - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - reload_tss(vcpu); - - local_irq_disable(); -diff -urNp linux-3.0.4/arch/x86/kvm/vmx.c linux-3.0.4/arch/x86/kvm/vmx.c ---- linux-3.0.4/arch/x86/kvm/vmx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/vmx.c 2011-08-23 21:47:55.000000000 -0400 -@@ -797,7 +797,11 @@ static void reload_tss(void) - struct desc_struct *descs; - - descs = (void *)gdt->address; -+ -+ pax_open_kernel(); - descs[GDT_ENTRY_TSS].type = 9; /* available TSS */ -+ pax_close_kernel(); -+ - load_TR_desc(); - } - -@@ -1747,8 +1751,11 @@ static __init int hardware_setup(void) - if (!cpu_has_vmx_flexpriority()) - flexpriority_enabled = 0; - -- if (!cpu_has_vmx_tpr_shadow()) -- kvm_x86_ops->update_cr8_intercept = NULL; -+ if (!cpu_has_vmx_tpr_shadow()) { -+ pax_open_kernel(); -+ *(void **)&kvm_x86_ops->update_cr8_intercept = NULL; -+ pax_close_kernel(); -+ } - - if (enable_ept && !cpu_has_vmx_ept_2m_page()) - kvm_disable_largepages(); -@@ -2814,7 +2821,7 @@ static int vmx_vcpu_setup(struct vcpu_vm - vmcs_writel(HOST_IDTR_BASE, dt.address); /* 22.2.4 */ - - asm("mov $.Lkvm_vmx_return, %0" : "=r"(kvm_vmx_return)); -- vmcs_writel(HOST_RIP, kvm_vmx_return); /* 22.2.5 */ -+ vmcs_writel(HOST_RIP, ktla_ktva(kvm_vmx_return)); /* 22.2.5 */ - vmcs_write32(VM_EXIT_MSR_STORE_COUNT, 0); - vmcs_write32(VM_EXIT_MSR_LOAD_COUNT, 0); - vmcs_write64(VM_EXIT_MSR_LOAD_ADDR, __pa(vmx->msr_autoload.host)); -@@ -4211,6 +4218,12 @@ static void __noclone vmx_vcpu_run(struc - "jmp .Lkvm_vmx_return \n\t" - ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t" - ".Lkvm_vmx_return: " -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ "ljmp %[cs],$.Lkvm_vmx_return2\n\t" -+ ".Lkvm_vmx_return2: " -+#endif -+ - /* Save guest registers, load host registers, keep flags */ - "mov %0, %c[wordsize](%%"R"sp) \n\t" - "pop %0 \n\t" -@@ -4259,6 +4272,11 @@ static void __noclone vmx_vcpu_run(struc - #endif - [cr2]"i"(offsetof(struct vcpu_vmx, vcpu.arch.cr2)), - [wordsize]"i"(sizeof(ulong)) -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ ,[cs]"i"(__KERNEL_CS) -+#endif -+ - : "cc", "memory" - , R"ax", R"bx", R"di", R"si" - #ifdef CONFIG_X86_64 -@@ -4276,7 +4294,16 @@ static void __noclone vmx_vcpu_run(struc - - vmx->idt_vectoring_info = vmcs_read32(IDT_VECTORING_INFO_FIELD); - -- asm("mov %0, %%ds; mov %0, %%es" : : "r"(__USER_DS)); -+ asm("mov %0, %%ds; mov %0, %%es; mov %0, %%ss" : : "r"(__KERNEL_DS)); -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ loadsegment(fs, __KERNEL_PERCPU); -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ __set_fs(current_thread_info()->addr_limit); -+#endif -+ - vmx->launched = 1; - - vmx->exit_reason = vmcs_read32(VM_EXIT_REASON); -diff -urNp linux-3.0.4/arch/x86/kvm/x86.c linux-3.0.4/arch/x86/kvm/x86.c ---- linux-3.0.4/arch/x86/kvm/x86.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/kvm/x86.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2057,6 +2057,8 @@ long kvm_arch_dev_ioctl(struct file *fil - if (n < msr_list.nmsrs) - goto out; - r = -EFAULT; -+ if (num_msrs_to_save > ARRAY_SIZE(msrs_to_save)) -+ goto out; - if (copy_to_user(user_msr_list->indices, &msrs_to_save, - num_msrs_to_save * sizeof(u32))) - goto out; -@@ -2229,15 +2231,20 @@ static int kvm_vcpu_ioctl_set_cpuid2(str - struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries) - { -- int r; -+ int r, i; - - r = -E2BIG; - if (cpuid->nent > KVM_MAX_CPUID_ENTRIES) - goto out; - r = -EFAULT; -- if (copy_from_user(&vcpu->arch.cpuid_entries, entries, -- cpuid->nent * sizeof(struct kvm_cpuid_entry2))) -+ if (!access_ok(VERIFY_READ, entries, cpuid->nent * sizeof(struct kvm_cpuid_entry2))) - goto out; -+ for (i = 0; i < cpuid->nent; ++i) { -+ struct kvm_cpuid_entry2 cpuid_entry; -+ if (__copy_from_user(&cpuid_entry, entries + i, sizeof(cpuid_entry))) -+ goto out; -+ vcpu->arch.cpuid_entries[i] = cpuid_entry; -+ } - vcpu->arch.cpuid_nent = cpuid->nent; - kvm_apic_set_version(vcpu); - kvm_x86_ops->cpuid_update(vcpu); -@@ -2252,15 +2259,19 @@ static int kvm_vcpu_ioctl_get_cpuid2(str - struct kvm_cpuid2 *cpuid, - struct kvm_cpuid_entry2 __user *entries) - { -- int r; -+ int r, i; - - r = -E2BIG; - if (cpuid->nent < vcpu->arch.cpuid_nent) - goto out; - r = -EFAULT; -- if (copy_to_user(entries, &vcpu->arch.cpuid_entries, -- vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) -+ if (!access_ok(VERIFY_WRITE, entries, vcpu->arch.cpuid_nent * sizeof(struct kvm_cpuid_entry2))) - goto out; -+ for (i = 0; i < vcpu->arch.cpuid_nent; ++i) { -+ struct kvm_cpuid_entry2 cpuid_entry = vcpu->arch.cpuid_entries[i]; -+ if (__copy_to_user(entries + i, &cpuid_entry, sizeof(cpuid_entry))) -+ goto out; -+ } - return 0; - - out: -@@ -2579,7 +2590,7 @@ static int kvm_vcpu_ioctl_set_lapic(stru - static int kvm_vcpu_ioctl_interrupt(struct kvm_vcpu *vcpu, - struct kvm_interrupt *irq) - { -- if (irq->irq < 0 || irq->irq >= 256) -+ if (irq->irq >= 256) - return -EINVAL; - if (irqchip_in_kernel(vcpu->kvm)) - return -ENXIO; -@@ -4878,7 +4889,7 @@ void kvm_after_handle_nmi(struct kvm_vcp - } - EXPORT_SYMBOL_GPL(kvm_after_handle_nmi); - --int kvm_arch_init(void *opaque) -+int kvm_arch_init(const void *opaque) - { - int r; - struct kvm_x86_ops *ops = (struct kvm_x86_ops *)opaque; -diff -urNp linux-3.0.4/arch/x86/lguest/boot.c linux-3.0.4/arch/x86/lguest/boot.c ---- linux-3.0.4/arch/x86/lguest/boot.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lguest/boot.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1176,9 +1176,10 @@ static __init int early_put_chars(u32 vt - * Rebooting also tells the Host we're finished, but the RESTART flag tells the - * Launcher to reboot us. - */ --static void lguest_restart(char *reason) -+static __noreturn void lguest_restart(char *reason) - { - hcall(LHCALL_SHUTDOWN, __pa(reason), LGUEST_SHUTDOWN_RESTART, 0, 0); -+ BUG(); - } - - /*G:050 -diff -urNp linux-3.0.4/arch/x86/lib/atomic64_32.c linux-3.0.4/arch/x86/lib/atomic64_32.c ---- linux-3.0.4/arch/x86/lib/atomic64_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -8,18 +8,30 @@ - - long long atomic64_read_cx8(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_read_cx8); -+long long atomic64_read_unchecked_cx8(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_read_unchecked_cx8); - long long atomic64_set_cx8(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_set_cx8); -+long long atomic64_set_unchecked_cx8(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_set_unchecked_cx8); - long long atomic64_xchg_cx8(long long, unsigned high); - EXPORT_SYMBOL(atomic64_xchg_cx8); - long long atomic64_add_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_return_cx8); -+long long atomic64_add_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_return_unchecked_cx8); - long long atomic64_sub_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_return_cx8); -+long long atomic64_sub_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_return_unchecked_cx8); - long long atomic64_inc_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_return_cx8); -+long long atomic64_inc_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_return_unchecked_cx8); - long long atomic64_dec_return_cx8(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_return_cx8); -+long long atomic64_dec_return_unchecked_cx8(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_return_unchecked_cx8); - long long atomic64_dec_if_positive_cx8(atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_if_positive_cx8); - int atomic64_inc_not_zero_cx8(atomic64_t *v); -@@ -30,26 +42,46 @@ EXPORT_SYMBOL(atomic64_add_unless_cx8); - #ifndef CONFIG_X86_CMPXCHG64 - long long atomic64_read_386(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_read_386); -+long long atomic64_read_unchecked_386(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_read_unchecked_386); - long long atomic64_set_386(long long, const atomic64_t *v); - EXPORT_SYMBOL(atomic64_set_386); -+long long atomic64_set_unchecked_386(long long, const atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_set_unchecked_386); - long long atomic64_xchg_386(long long, unsigned high); - EXPORT_SYMBOL(atomic64_xchg_386); - long long atomic64_add_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_return_386); -+long long atomic64_add_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_return_unchecked_386); - long long atomic64_sub_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_return_386); -+long long atomic64_sub_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_return_unchecked_386); - long long atomic64_inc_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_return_386); -+long long atomic64_inc_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_return_unchecked_386); - long long atomic64_dec_return_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_return_386); -+long long atomic64_dec_return_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_return_unchecked_386); - long long atomic64_add_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_add_386); -+long long atomic64_add_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_add_unchecked_386); - long long atomic64_sub_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_sub_386); -+long long atomic64_sub_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_sub_unchecked_386); - long long atomic64_inc_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_inc_386); -+long long atomic64_inc_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_inc_unchecked_386); - long long atomic64_dec_386(long long a, atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_386); -+long long atomic64_dec_unchecked_386(long long a, atomic64_unchecked_t *v); -+EXPORT_SYMBOL(atomic64_dec_unchecked_386); - long long atomic64_dec_if_positive_386(atomic64_t *v); - EXPORT_SYMBOL(atomic64_dec_if_positive_386); - int atomic64_inc_not_zero_386(atomic64_t *v); -diff -urNp linux-3.0.4/arch/x86/lib/atomic64_386_32.S linux-3.0.4/arch/x86/lib/atomic64_386_32.S ---- linux-3.0.4/arch/x86/lib/atomic64_386_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_386_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -48,6 +48,10 @@ BEGIN(read) - movl (v), %eax - movl 4(v), %edx - RET_ENDP -+BEGIN(read_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+RET_ENDP - #undef v - - #define v %esi -@@ -55,6 +59,10 @@ BEGIN(set) - movl %ebx, (v) - movl %ecx, 4(v) - RET_ENDP -+BEGIN(set_unchecked) -+ movl %ebx, (v) -+ movl %ecx, 4(v) -+RET_ENDP - #undef v - - #define v %esi -@@ -70,6 +78,20 @@ RET_ENDP - BEGIN(add) - addl %eax, (v) - adcl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ subl %eax, (v) -+ sbbl %edx, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(add_unchecked) -+ addl %eax, (v) -+ adcl %edx, 4(v) - RET_ENDP - #undef v - -@@ -77,6 +99,24 @@ RET_ENDP - BEGIN(add_return) - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(add_return_unchecked) -+ addl (v), %eax -+ adcl 4(v), %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -86,6 +126,20 @@ RET_ENDP - BEGIN(sub) - subl %eax, (v) - sbbl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ addl %eax, (v) -+ adcl %edx, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(sub_unchecked) -+ subl %eax, (v) -+ sbbl %edx, 4(v) - RET_ENDP - #undef v - -@@ -96,6 +150,27 @@ BEGIN(sub_return) - sbbl $0, %edx - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(sub_return_unchecked) -+ negl %edx -+ negl %eax -+ sbbl $0, %edx -+ addl (v), %eax -+ adcl 4(v), %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -105,6 +180,20 @@ RET_ENDP - BEGIN(inc) - addl $1, (v) - adcl $0, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ subl $1, (v) -+ sbbl $0, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(inc_unchecked) -+ addl $1, (v) -+ adcl $0, 4(v) - RET_ENDP - #undef v - -@@ -114,6 +203,26 @@ BEGIN(inc_return) - movl 4(v), %edx - addl $1, %eax - adcl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(inc_return_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+ addl $1, %eax -+ adcl $0, %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -123,6 +232,20 @@ RET_ENDP - BEGIN(dec) - subl $1, (v) - sbbl $0, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ jno 0f -+ addl $1, (v) -+ adcl $0, 4(v) -+ int $4 -+0: -+ _ASM_EXTABLE(0b, 0b) -+#endif -+ -+RET_ENDP -+BEGIN(dec_unchecked) -+ subl $1, (v) -+ sbbl $0, 4(v) - RET_ENDP - #undef v - -@@ -132,6 +255,26 @@ BEGIN(dec_return) - movl 4(v), %edx - subl $1, %eax - sbbl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ -+ movl %eax, (v) -+ movl %edx, 4(v) -+ -+#ifdef CONFIG_PAX_REFCOUNT -+2: -+#endif -+ -+RET_ENDP -+BEGIN(dec_return_unchecked) -+ movl (v), %eax -+ movl 4(v), %edx -+ subl $1, %eax -+ sbbl $0, %edx - movl %eax, (v) - movl %edx, 4(v) - RET_ENDP -@@ -143,6 +286,13 @@ BEGIN(add_unless) - adcl %edx, %edi - addl (v), %eax - adcl 4(v), %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - cmpl %eax, %esi - je 3f - 1: -@@ -168,6 +318,13 @@ BEGIN(inc_not_zero) - 1: - addl $1, %eax - adcl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - movl %eax, (v) - movl %edx, 4(v) - movl $1, %eax -@@ -186,6 +343,13 @@ BEGIN(dec_if_positive) - movl 4(v), %edx - subl $1, %eax - sbbl $0, %edx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 1f) -+#endif -+ - js 1f - movl %eax, (v) - movl %edx, 4(v) -diff -urNp linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S ---- linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/atomic64_cx8_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -39,6 +39,14 @@ ENTRY(atomic64_read_cx8) - CFI_ENDPROC - ENDPROC(atomic64_read_cx8) - -+ENTRY(atomic64_read_unchecked_cx8) -+ CFI_STARTPROC -+ -+ read64 %ecx -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_read_unchecked_cx8) -+ - ENTRY(atomic64_set_cx8) - CFI_STARTPROC - -@@ -52,6 +60,19 @@ ENTRY(atomic64_set_cx8) - CFI_ENDPROC - ENDPROC(atomic64_set_cx8) - -+ENTRY(atomic64_set_unchecked_cx8) -+ CFI_STARTPROC -+ -+1: -+/* we don't need LOCK_PREFIX since aligned 64-bit writes -+ * are atomic on 586 and newer */ -+ cmpxchg8b (%esi) -+ jne 1b -+ -+ ret -+ CFI_ENDPROC -+ENDPROC(atomic64_set_unchecked_cx8) -+ - ENTRY(atomic64_xchg_cx8) - CFI_STARTPROC - -@@ -66,8 +87,8 @@ ENTRY(atomic64_xchg_cx8) - CFI_ENDPROC - ENDPROC(atomic64_xchg_cx8) - --.macro addsub_return func ins insc --ENTRY(atomic64_\func\()_return_cx8) -+.macro addsub_return func ins insc unchecked="" -+ENTRY(atomic64_\func\()_return\unchecked\()_cx8) - CFI_STARTPROC - SAVE ebp - SAVE ebx -@@ -84,27 +105,43 @@ ENTRY(atomic64_\func\()_return_cx8) - movl %edx, %ecx - \ins\()l %esi, %ebx - \insc\()l %edi, %ecx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+2: -+ _ASM_EXTABLE(2b, 3f) -+#endif -+.endif -+ - LOCK_PREFIX - cmpxchg8b (%ebp) - jne 1b -- --10: - movl %ebx, %eax - movl %ecx, %edx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+3: -+#endif -+.endif -+ - RESTORE edi - RESTORE esi - RESTORE ebx - RESTORE ebp - ret - CFI_ENDPROC --ENDPROC(atomic64_\func\()_return_cx8) -+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) - .endm - - addsub_return add add adc - addsub_return sub sub sbb -+addsub_return add add adc _unchecked -+addsub_return sub sub sbb _unchecked - --.macro incdec_return func ins insc --ENTRY(atomic64_\func\()_return_cx8) -+.macro incdec_return func ins insc unchecked -+ENTRY(atomic64_\func\()_return\unchecked\()_cx8) - CFI_STARTPROC - SAVE ebx - -@@ -114,21 +151,38 @@ ENTRY(atomic64_\func\()_return_cx8) - movl %edx, %ecx - \ins\()l $1, %ebx - \insc\()l $0, %ecx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+2: -+ _ASM_EXTABLE(2b, 3f) -+#endif -+.endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b - --10: - movl %ebx, %eax - movl %ecx, %edx -+ -+.ifb \unchecked -+#ifdef CONFIG_PAX_REFCOUNT -+3: -+#endif -+.endif -+ - RESTORE ebx - ret - CFI_ENDPROC --ENDPROC(atomic64_\func\()_return_cx8) -+ENDPROC(atomic64_\func\()_return\unchecked\()_cx8) - .endm - - incdec_return inc add adc - incdec_return dec sub sbb -+incdec_return inc add adc _unchecked -+incdec_return dec sub sbb _unchecked - - ENTRY(atomic64_dec_if_positive_cx8) - CFI_STARTPROC -@@ -140,6 +194,13 @@ ENTRY(atomic64_dec_if_positive_cx8) - movl %edx, %ecx - subl $1, %ebx - sbb $0, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 2f) -+#endif -+ - js 2f - LOCK_PREFIX - cmpxchg8b (%esi) -@@ -174,6 +235,13 @@ ENTRY(atomic64_add_unless_cx8) - movl %edx, %ecx - addl %esi, %ebx - adcl %edi, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%ebp) - jne 1b -@@ -206,6 +274,13 @@ ENTRY(atomic64_inc_not_zero_cx8) - movl %edx, %ecx - addl $1, %ebx - adcl $0, %ecx -+ -+#ifdef CONFIG_PAX_REFCOUNT -+ into -+1234: -+ _ASM_EXTABLE(1234b, 3f) -+#endif -+ - LOCK_PREFIX - cmpxchg8b (%esi) - jne 1b -diff -urNp linux-3.0.4/arch/x86/lib/checksum_32.S linux-3.0.4/arch/x86/lib/checksum_32.S ---- linux-3.0.4/arch/x86/lib/checksum_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/checksum_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -28,7 +28,8 @@ - #include - #include - #include -- -+#include -+ - /* - * computes a partial checksum, e.g. for TCP/UDP fragments - */ -@@ -296,9 +297,24 @@ unsigned int csum_partial_copy_generic ( - - #define ARGBASE 16 - #define FP 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %es -+ jmp csum_partial_copy_generic -+#endif -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %ds -+#endif -+ -+ENTRY(csum_partial_copy_generic) - subl $4,%esp - CFI_ADJUST_CFA_OFFSET 4 - pushl_cfi %edi -@@ -320,7 +336,7 @@ ENTRY(csum_partial_copy_generic) - jmp 4f - SRC(1: movw (%esi), %bx ) - addl $2, %esi --DST( movw %bx, (%edi) ) -+DST( movw %bx, %es:(%edi) ) - addl $2, %edi - addw %bx, %ax - adcl $0, %eax -@@ -332,30 +348,30 @@ DST( movw %bx, (%edi) ) - SRC(1: movl (%esi), %ebx ) - SRC( movl 4(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - adcl %edx, %eax --DST( movl %edx, 4(%edi) ) -+DST( movl %edx, %es:4(%edi) ) - - SRC( movl 8(%esi), %ebx ) - SRC( movl 12(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 8(%edi) ) -+DST( movl %ebx, %es:8(%edi) ) - adcl %edx, %eax --DST( movl %edx, 12(%edi) ) -+DST( movl %edx, %es:12(%edi) ) - - SRC( movl 16(%esi), %ebx ) - SRC( movl 20(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 16(%edi) ) -+DST( movl %ebx, %es:16(%edi) ) - adcl %edx, %eax --DST( movl %edx, 20(%edi) ) -+DST( movl %edx, %es:20(%edi) ) - - SRC( movl 24(%esi), %ebx ) - SRC( movl 28(%esi), %edx ) - adcl %ebx, %eax --DST( movl %ebx, 24(%edi) ) -+DST( movl %ebx, %es:24(%edi) ) - adcl %edx, %eax --DST( movl %edx, 28(%edi) ) -+DST( movl %edx, %es:28(%edi) ) - - lea 32(%esi), %esi - lea 32(%edi), %edi -@@ -369,7 +385,7 @@ DST( movl %edx, 28(%edi) ) - shrl $2, %edx # This clears CF - SRC(3: movl (%esi), %ebx ) - adcl %ebx, %eax --DST( movl %ebx, (%edi) ) -+DST( movl %ebx, %es:(%edi) ) - lea 4(%esi), %esi - lea 4(%edi), %edi - dec %edx -@@ -381,12 +397,12 @@ DST( movl %ebx, (%edi) ) - jb 5f - SRC( movw (%esi), %cx ) - leal 2(%esi), %esi --DST( movw %cx, (%edi) ) -+DST( movw %cx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%ecx - SRC(5: movb (%esi), %cl ) --DST( movb %cl, (%edi) ) -+DST( movb %cl, %es:(%edi) ) - 6: addl %ecx, %eax - adcl $0, %eax - 7: -@@ -397,7 +413,7 @@ DST( movb %cl, (%edi) ) - - 6001: - movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - - # zero the complete destination - computing the rest - # is too much work -@@ -410,11 +426,15 @@ DST( movb %cl, (%edi) ) - - 6002: - movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT,(%ebx) -+ movl $-EFAULT,%ss:(%ebx) - jmp 5000b - - .previous - -+ pushl_cfi %ss -+ popl_cfi %ds -+ pushl_cfi %ss -+ popl_cfi %es - popl_cfi %ebx - CFI_RESTORE ebx - popl_cfi %esi -@@ -424,26 +444,43 @@ DST( movb %cl, (%edi) ) - popl_cfi %ecx # equivalent to addl $4,%esp - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #else - - /* Version for PentiumII/PPro */ - - #define ROUND1(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - addl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ROUND(x) \ -+ nop; nop; nop; \ - SRC(movl x(%esi), %ebx ) ; \ - adcl %ebx, %eax ; \ -- DST(movl %ebx, x(%edi) ) ; -+ DST(movl %ebx, %es:x(%edi)) ; - - #define ARGBASE 12 -- --ENTRY(csum_partial_copy_generic) -+ -+ENTRY(csum_partial_copy_generic_to_user) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %es -+ jmp csum_partial_copy_generic -+#endif -+ -+ENTRY(csum_partial_copy_generic_from_user) -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %gs -+ popl_cfi %ds -+#endif -+ -+ENTRY(csum_partial_copy_generic) - pushl_cfi %ebx - CFI_REL_OFFSET ebx, 0 - pushl_cfi %edi -@@ -464,7 +501,7 @@ ENTRY(csum_partial_copy_generic) - subl %ebx, %edi - lea -1(%esi),%edx - andl $-32,%edx -- lea 3f(%ebx,%ebx), %ebx -+ lea 3f(%ebx,%ebx,2), %ebx - testl %esi, %esi - jmp *%ebx - 1: addl $64,%esi -@@ -485,19 +522,19 @@ ENTRY(csum_partial_copy_generic) - jb 5f - SRC( movw (%esi), %dx ) - leal 2(%esi), %esi --DST( movw %dx, (%edi) ) -+DST( movw %dx, %es:(%edi) ) - leal 2(%edi), %edi - je 6f - shll $16,%edx - 5: - SRC( movb (%esi), %dl ) --DST( movb %dl, (%edi) ) -+DST( movb %dl, %es:(%edi) ) - 6: addl %edx, %eax - adcl $0, %eax - 7: - .section .fixup, "ax" - 6001: movl ARGBASE+20(%esp), %ebx # src_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - # zero the complete destination (computing the rest is too much work) - movl ARGBASE+8(%esp),%edi # dst - movl ARGBASE+12(%esp),%ecx # len -@@ -505,10 +542,17 @@ DST( movb %dl, (%edi) ) - rep; stosb - jmp 7b - 6002: movl ARGBASE+24(%esp), %ebx # dst_err_ptr -- movl $-EFAULT, (%ebx) -+ movl $-EFAULT, %ss:(%ebx) - jmp 7b - .previous - -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ pushl_cfi %ss -+ popl_cfi %ds -+ pushl_cfi %ss -+ popl_cfi %es -+#endif -+ - popl_cfi %esi - CFI_RESTORE esi - popl_cfi %edi -@@ -517,7 +561,7 @@ DST( movb %dl, (%edi) ) - CFI_RESTORE ebx - ret - CFI_ENDPROC --ENDPROC(csum_partial_copy_generic) -+ENDPROC(csum_partial_copy_generic_to_user) - - #undef ROUND - #undef ROUND1 -diff -urNp linux-3.0.4/arch/x86/lib/clear_page_64.S linux-3.0.4/arch/x86/lib/clear_page_64.S ---- linux-3.0.4/arch/x86/lib/clear_page_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/clear_page_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -58,7 +58,7 @@ ENDPROC(clear_page) - - #include - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp */ - .byte (clear_page_c - clear_page) - (2f - 1b) /* offset */ - 2: .byte 0xeb /* jmp */ -diff -urNp linux-3.0.4/arch/x86/lib/copy_page_64.S linux-3.0.4/arch/x86/lib/copy_page_64.S ---- linux-3.0.4/arch/x86/lib/copy_page_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_page_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -104,7 +104,7 @@ ENDPROC(copy_page) - - #include - -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 1: .byte 0xeb /* jmp */ - .byte (copy_page_c - copy_page) - (2f - 1b) /* offset */ - 2: -diff -urNp linux-3.0.4/arch/x86/lib/copy_user_64.S linux-3.0.4/arch/x86/lib/copy_user_64.S ---- linux-3.0.4/arch/x86/lib/copy_user_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_user_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -16,6 +16,7 @@ - #include - #include - #include -+#include - - /* - * By placing feature2 after feature1 in altinstructions section, we logically -@@ -29,7 +30,7 @@ - .byte 0xe9 /* 32bit jump */ - .long \orig-1f /* by default jump to orig */ - 1: -- .section .altinstr_replacement,"ax" -+ .section .altinstr_replacement,"a" - 2: .byte 0xe9 /* near jump with 32bit immediate */ - .long \alt1-1b /* offset */ /* or alternatively to alt1 */ - 3: .byte 0xe9 /* near jump with 32bit immediate */ -@@ -71,41 +72,13 @@ - #endif - .endm - --/* Standard copy_to_user with segment limit checking */ --ENTRY(_copy_to_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rdi,%rcx -- addq %rdx,%rcx -- jc bad_to_user -- cmpq TI_addr_limit(%rax),%rcx -- ja bad_to_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ -- copy_user_generic_unrolled,copy_user_generic_string, \ -- copy_user_enhanced_fast_string -- CFI_ENDPROC --ENDPROC(_copy_to_user) -- --/* Standard copy_from_user with segment limit checking */ --ENTRY(_copy_from_user) -- CFI_STARTPROC -- GET_THREAD_INFO(%rax) -- movq %rsi,%rcx -- addq %rdx,%rcx -- jc bad_from_user -- cmpq TI_addr_limit(%rax),%rcx -- ja bad_from_user -- ALTERNATIVE_JUMP X86_FEATURE_REP_GOOD,X86_FEATURE_ERMS, \ -- copy_user_generic_unrolled,copy_user_generic_string, \ -- copy_user_enhanced_fast_string -- CFI_ENDPROC --ENDPROC(_copy_from_user) -- - .section .fixup,"ax" - /* must zero dest */ - ENTRY(bad_from_user) - bad_from_user: - CFI_STARTPROC -+ testl %edx,%edx -+ js bad_to_user - movl %edx,%ecx - xorl %eax,%eax - rep -diff -urNp linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S ---- linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/copy_user_nocache_64.S 2011-08-23 21:47:55.000000000 -0400 -@@ -14,6 +14,7 @@ - #include - #include - #include -+#include - - .macro ALIGN_DESTINATION - #ifdef FIX_ALIGNMENT -@@ -50,6 +51,15 @@ - */ - ENTRY(__copy_user_nocache) - CFI_STARTPROC -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%rcx -+ cmp %rcx,%rsi -+ jae 1f -+ add %rcx,%rsi -+1: -+#endif -+ - cmpl $8,%edx - jb 20f /* less then 8 bytes, go to byte copy loop */ - ALIGN_DESTINATION -diff -urNp linux-3.0.4/arch/x86/lib/csum-wrappers_64.c linux-3.0.4/arch/x86/lib/csum-wrappers_64.c ---- linux-3.0.4/arch/x86/lib/csum-wrappers_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/csum-wrappers_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -52,6 +52,12 @@ csum_partial_copy_from_user(const void _ - len -= 2; - } - } -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ - isum = csum_partial_copy_generic((__force const void *)src, - dst, len, isum, errp, NULL); - if (unlikely(*errp)) -@@ -105,6 +111,12 @@ csum_partial_copy_to_user(const void *sr - } - - *errp = 0; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)dst < PAX_USER_SHADOW_BASE) -+ dst += PAX_USER_SHADOW_BASE; -+#endif -+ - return csum_partial_copy_generic(src, (void __force *)dst, - len, isum, NULL, errp); - } -diff -urNp linux-3.0.4/arch/x86/lib/getuser.S linux-3.0.4/arch/x86/lib/getuser.S ---- linux-3.0.4/arch/x86/lib/getuser.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/getuser.S 2011-08-23 21:47:55.000000000 -0400 -@@ -33,14 +33,35 @@ - #include - #include - #include -+#include -+#include -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg gs; -+#else -+#define __copyuser_seg -+#endif - - .text - ENTRY(__get_user_1) - CFI_STARTPROC -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --1: movzb (%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+1: __copyuser_seg movzb (%_ASM_AX),%edx - xor %eax,%eax - ret - CFI_ENDPROC -@@ -49,11 +70,24 @@ ENDPROC(__get_user_1) - ENTRY(__get_user_2) - CFI_STARTPROC - add $1,%_ASM_AX -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - jc bad_get_user - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --2: movzwl -1(%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+2: __copyuser_seg movzwl -1(%_ASM_AX),%edx - xor %eax,%eax - ret - CFI_ENDPROC -@@ -62,11 +96,24 @@ ENDPROC(__get_user_2) - ENTRY(__get_user_4) - CFI_STARTPROC - add $3,%_ASM_AX -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) - jc bad_get_user - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user --3: mov -3(%_ASM_AX),%edx -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ -+#endif -+ -+3: __copyuser_seg mov -3(%_ASM_AX),%edx - xor %eax,%eax - ret - CFI_ENDPROC -@@ -80,6 +127,15 @@ ENTRY(__get_user_8) - GET_THREAD_INFO(%_ASM_DX) - cmp TI_addr_limit(%_ASM_DX),%_ASM_AX - jae bad_get_user -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ mov $PAX_USER_SHADOW_BASE,%_ASM_DX -+ cmp %_ASM_DX,%_ASM_AX -+ jae 1234f -+ add %_ASM_DX,%_ASM_AX -+1234: -+#endif -+ - 4: movq -7(%_ASM_AX),%_ASM_DX - xor %eax,%eax - ret -diff -urNp linux-3.0.4/arch/x86/lib/insn.c linux-3.0.4/arch/x86/lib/insn.c ---- linux-3.0.4/arch/x86/lib/insn.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/insn.c 2011-08-23 21:47:55.000000000 -0400 -@@ -21,6 +21,11 @@ - #include - #include - #include -+#ifdef __KERNEL__ -+#include -+#else -+#define ktla_ktva(addr) addr -+#endif - - #define get_next(t, insn) \ - ({t r; r = *(t*)insn->next_byte; insn->next_byte += sizeof(t); r; }) -@@ -40,8 +45,8 @@ - void insn_init(struct insn *insn, const void *kaddr, int x86_64) - { - memset(insn, 0, sizeof(*insn)); -- insn->kaddr = kaddr; -- insn->next_byte = kaddr; -+ insn->kaddr = ktla_ktva(kaddr); -+ insn->next_byte = ktla_ktva(kaddr); - insn->x86_64 = x86_64 ? 1 : 0; - insn->opnd_bytes = 4; - if (x86_64) -diff -urNp linux-3.0.4/arch/x86/lib/mmx_32.c linux-3.0.4/arch/x86/lib/mmx_32.c ---- linux-3.0.4/arch/x86/lib/mmx_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/mmx_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -29,6 +29,7 @@ void *_mmx_memcpy(void *to, const void * - { - void *p; - int i; -+ unsigned long cr0; - - if (unlikely(in_interrupt())) - return __memcpy(to, from, len); -@@ -39,44 +40,72 @@ void *_mmx_memcpy(void *to, const void * - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" /* This set is 28 bytes */ -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" /* This set is 28 bytes */ -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from)); -+ : "=&r" (cr0) : "r" (from) : "ax"); - - for ( ; i > 5; i--) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -158,6 +187,7 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - -@@ -166,42 +196,70 @@ static void fast_copy_page(void *to, voi - * but that is for later. -AV - */ - __asm__ __volatile__( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < (4096-320)/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movntq %%mm0, (%1)\n" -- " movq 8(%0), %%mm1\n" -- " movntq %%mm1, 8(%1)\n" -- " movq 16(%0), %%mm2\n" -- " movntq %%mm2, 16(%1)\n" -- " movq 24(%0), %%mm3\n" -- " movntq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm4\n" -- " movntq %%mm4, 32(%1)\n" -- " movq 40(%0), %%mm5\n" -- " movntq %%mm5, 40(%1)\n" -- " movq 48(%0), %%mm6\n" -- " movntq %%mm6, 48(%1)\n" -- " movq 56(%0), %%mm7\n" -- " movntq %%mm7, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movntq %%mm0, (%2)\n" -+ " movq 8(%1), %%mm1\n" -+ " movntq %%mm1, 8(%2)\n" -+ " movq 16(%1), %%mm2\n" -+ " movntq %%mm2, 16(%2)\n" -+ " movq 24(%1), %%mm3\n" -+ " movntq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm4\n" -+ " movntq %%mm4, 32(%2)\n" -+ " movq 40(%1), %%mm5\n" -+ " movntq %%mm5, 40(%2)\n" -+ " movq 48(%1), %%mm6\n" -+ " movntq %%mm6, 48(%2)\n" -+ " movq 56(%1), %%mm7\n" -+ " movntq %%mm7, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from), "r" (to) : "memory"); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -@@ -280,47 +338,76 @@ static void fast_clear_page(void *page) - static void fast_copy_page(void *to, void *from) - { - int i; -+ unsigned long cr0; - - kernel_fpu_begin(); - - __asm__ __volatile__ ( -- "1: prefetch (%0)\n" -- " prefetch 64(%0)\n" -- " prefetch 128(%0)\n" -- " prefetch 192(%0)\n" -- " prefetch 256(%0)\n" -+ "1: prefetch (%1)\n" -+ " prefetch 64(%1)\n" -+ " prefetch 128(%1)\n" -+ " prefetch 192(%1)\n" -+ " prefetch 256(%1)\n" - "2: \n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ "3: \n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x1AEB, 1b\n" /* jmp on 26 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" -- _ASM_EXTABLE(1b, 3b) : : "r" (from)); -+ _ASM_EXTABLE(1b, 3b) : "=&r" (cr0) : "r" (from) : "ax"); - - for (i = 0; i < 4096/64; i++) { - __asm__ __volatile__ ( -- "1: prefetch 320(%0)\n" -- "2: movq (%0), %%mm0\n" -- " movq 8(%0), %%mm1\n" -- " movq 16(%0), %%mm2\n" -- " movq 24(%0), %%mm3\n" -- " movq %%mm0, (%1)\n" -- " movq %%mm1, 8(%1)\n" -- " movq %%mm2, 16(%1)\n" -- " movq %%mm3, 24(%1)\n" -- " movq 32(%0), %%mm0\n" -- " movq 40(%0), %%mm1\n" -- " movq 48(%0), %%mm2\n" -- " movq 56(%0), %%mm3\n" -- " movq %%mm0, 32(%1)\n" -- " movq %%mm1, 40(%1)\n" -- " movq %%mm2, 48(%1)\n" -- " movq %%mm3, 56(%1)\n" -+ "1: prefetch 320(%1)\n" -+ "2: movq (%1), %%mm0\n" -+ " movq 8(%1), %%mm1\n" -+ " movq 16(%1), %%mm2\n" -+ " movq 24(%1), %%mm3\n" -+ " movq %%mm0, (%2)\n" -+ " movq %%mm1, 8(%2)\n" -+ " movq %%mm2, 16(%2)\n" -+ " movq %%mm3, 24(%2)\n" -+ " movq 32(%1), %%mm0\n" -+ " movq 40(%1), %%mm1\n" -+ " movq 48(%1), %%mm2\n" -+ " movq 56(%1), %%mm3\n" -+ " movq %%mm0, 32(%2)\n" -+ " movq %%mm1, 40(%2)\n" -+ " movq %%mm2, 48(%2)\n" -+ " movq %%mm3, 56(%2)\n" - ".section .fixup, \"ax\"\n" -- "3: movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ "3:\n" -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %%cr0, %0\n" -+ " movl %0, %%eax\n" -+ " andl $0xFFFEFFFF, %%eax\n" -+ " movl %%eax, %%cr0\n" -+#endif -+ -+ " movw $0x05EB, 1b\n" /* jmp on 5 bytes */ -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ " movl %0, %%cr0\n" -+#endif -+ - " jmp 2b\n" - ".previous\n" - _ASM_EXTABLE(1b, 3b) -- : : "r" (from), "r" (to) : "memory"); -+ : "=&r" (cr0) : "r" (from), "r" (to) : "memory", "ax"); - - from += 64; - to += 64; -diff -urNp linux-3.0.4/arch/x86/lib/putuser.S linux-3.0.4/arch/x86/lib/putuser.S ---- linux-3.0.4/arch/x86/lib/putuser.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/putuser.S 2011-08-23 21:47:55.000000000 -0400 -@@ -15,7 +15,8 @@ - #include - #include - #include -- -+#include -+#include - - /* - * __put_user_X -@@ -29,52 +30,119 @@ - * as they get called from within inline assembly. - */ - --#define ENTER CFI_STARTPROC ; \ -- GET_THREAD_INFO(%_ASM_BX) -+#define ENTER CFI_STARTPROC - #define EXIT ret ; \ - CFI_ENDPROC - -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define _DEST %_ASM_CX,%_ASM_BX -+#else -+#define _DEST %_ASM_CX -+#endif -+ -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#define __copyuser_seg gs; -+#else -+#define __copyuser_seg -+#endif -+ - .text - ENTRY(__put_user_1) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - cmp TI_addr_limit(%_ASM_BX),%_ASM_CX - jae bad_put_user --1: movb %al,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+1: __copyuser_seg movb %al,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_1) - - ENTRY(__put_user_2) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $1,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --2: movw %ax,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+2: __copyuser_seg movw %ax,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_2) - - ENTRY(__put_user_4) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $3,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --3: movl %eax,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+3: __copyuser_seg movl %eax,(_DEST) - xor %eax,%eax - EXIT - ENDPROC(__put_user_4) - - ENTRY(__put_user_8) - ENTER -+ -+#if !defined(CONFIG_X86_32) || !defined(CONFIG_PAX_MEMORY_UDEREF) -+ GET_THREAD_INFO(%_ASM_BX) - mov TI_addr_limit(%_ASM_BX),%_ASM_BX - sub $7,%_ASM_BX - cmp %_ASM_BX,%_ASM_CX - jae bad_put_user --4: mov %_ASM_AX,(%_ASM_CX) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ mov $PAX_USER_SHADOW_BASE,%_ASM_BX -+ cmp %_ASM_BX,%_ASM_CX -+ jb 1234f -+ xor %ebx,%ebx -+1234: -+#endif -+ -+#endif -+ -+4: __copyuser_seg mov %_ASM_AX,(_DEST) - #ifdef CONFIG_X86_32 --5: movl %edx,4(%_ASM_CX) -+5: __copyuser_seg movl %edx,4(_DEST) - #endif - xor %eax,%eax - EXIT -diff -urNp linux-3.0.4/arch/x86/lib/usercopy_32.c linux-3.0.4/arch/x86/lib/usercopy_32.c ---- linux-3.0.4/arch/x86/lib/usercopy_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/usercopy_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,7 +43,7 @@ do { \ - __asm__ __volatile__( \ - " testl %1,%1\n" \ - " jz 2f\n" \ -- "0: lodsb\n" \ -+ "0: "__copyuser_seg"lodsb\n" \ - " stosb\n" \ - " testb %%al,%%al\n" \ - " jz 1f\n" \ -@@ -128,10 +128,12 @@ do { \ - int __d0; \ - might_fault(); \ - __asm__ __volatile__( \ -+ __COPYUSER_SET_ES \ - "0: rep; stosl\n" \ - " movl %2,%0\n" \ - "1: rep; stosb\n" \ - "2:\n" \ -+ __COPYUSER_RESTORE_ES \ - ".section .fixup,\"ax\"\n" \ - "3: lea 0(%2,%0,4),%0\n" \ - " jmp 2b\n" \ -@@ -200,6 +202,7 @@ long strnlen_user(const char __user *s, - might_fault(); - - __asm__ __volatile__( -+ __COPYUSER_SET_ES - " testl %0, %0\n" - " jz 3f\n" - " andl %0,%%ecx\n" -@@ -208,6 +211,7 @@ long strnlen_user(const char __user *s, - " subl %%ecx,%0\n" - " addl %0,%%eax\n" - "1:\n" -+ __COPYUSER_RESTORE_ES - ".section .fixup,\"ax\"\n" - "2: xorl %%eax,%%eax\n" - " jmp 1b\n" -@@ -227,7 +231,7 @@ EXPORT_SYMBOL(strnlen_user); - - #ifdef CONFIG_X86_INTEL_USERCOPY - static unsigned long --__copy_user_intel(void __user *to, const void *from, unsigned long size) -+__generic_copy_to_user_intel(void __user *to, const void *from, unsigned long size) - { - int d0, d1; - __asm__ __volatile__( -@@ -239,36 +243,36 @@ __copy_user_intel(void __user *to, const - " .align 2,0x90\n" - "3: movl 0(%4), %%eax\n" - "4: movl 4(%4), %%edx\n" -- "5: movl %%eax, 0(%3)\n" -- "6: movl %%edx, 4(%3)\n" -+ "5: "__copyuser_seg" movl %%eax, 0(%3)\n" -+ "6: "__copyuser_seg" movl %%edx, 4(%3)\n" - "7: movl 8(%4), %%eax\n" - "8: movl 12(%4),%%edx\n" -- "9: movl %%eax, 8(%3)\n" -- "10: movl %%edx, 12(%3)\n" -+ "9: "__copyuser_seg" movl %%eax, 8(%3)\n" -+ "10: "__copyuser_seg" movl %%edx, 12(%3)\n" - "11: movl 16(%4), %%eax\n" - "12: movl 20(%4), %%edx\n" -- "13: movl %%eax, 16(%3)\n" -- "14: movl %%edx, 20(%3)\n" -+ "13: "__copyuser_seg" movl %%eax, 16(%3)\n" -+ "14: "__copyuser_seg" movl %%edx, 20(%3)\n" - "15: movl 24(%4), %%eax\n" - "16: movl 28(%4), %%edx\n" -- "17: movl %%eax, 24(%3)\n" -- "18: movl %%edx, 28(%3)\n" -+ "17: "__copyuser_seg" movl %%eax, 24(%3)\n" -+ "18: "__copyuser_seg" movl %%edx, 28(%3)\n" - "19: movl 32(%4), %%eax\n" - "20: movl 36(%4), %%edx\n" -- "21: movl %%eax, 32(%3)\n" -- "22: movl %%edx, 36(%3)\n" -+ "21: "__copyuser_seg" movl %%eax, 32(%3)\n" -+ "22: "__copyuser_seg" movl %%edx, 36(%3)\n" - "23: movl 40(%4), %%eax\n" - "24: movl 44(%4), %%edx\n" -- "25: movl %%eax, 40(%3)\n" -- "26: movl %%edx, 44(%3)\n" -+ "25: "__copyuser_seg" movl %%eax, 40(%3)\n" -+ "26: "__copyuser_seg" movl %%edx, 44(%3)\n" - "27: movl 48(%4), %%eax\n" - "28: movl 52(%4), %%edx\n" -- "29: movl %%eax, 48(%3)\n" -- "30: movl %%edx, 52(%3)\n" -+ "29: "__copyuser_seg" movl %%eax, 48(%3)\n" -+ "30: "__copyuser_seg" movl %%edx, 52(%3)\n" - "31: movl 56(%4), %%eax\n" - "32: movl 60(%4), %%edx\n" -- "33: movl %%eax, 56(%3)\n" -- "34: movl %%edx, 60(%3)\n" -+ "33: "__copyuser_seg" movl %%eax, 56(%3)\n" -+ "34: "__copyuser_seg" movl %%edx, 60(%3)\n" - " addl $-64, %0\n" - " addl $64, %4\n" - " addl $64, %3\n" -@@ -278,10 +282,119 @@ __copy_user_intel(void __user *to, const - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -+ __COPYUSER_SET_ES - "99: rep; movsl\n" - "36: movl %%eax, %0\n" - "37: rep; movsb\n" - "100:\n" -+ __COPYUSER_RESTORE_ES -+ ".section .fixup,\"ax\"\n" -+ "101: lea 0(%%eax,%0,4),%0\n" -+ " jmp 100b\n" -+ ".previous\n" -+ ".section __ex_table,\"a\"\n" -+ " .align 4\n" -+ " .long 1b,100b\n" -+ " .long 2b,100b\n" -+ " .long 3b,100b\n" -+ " .long 4b,100b\n" -+ " .long 5b,100b\n" -+ " .long 6b,100b\n" -+ " .long 7b,100b\n" -+ " .long 8b,100b\n" -+ " .long 9b,100b\n" -+ " .long 10b,100b\n" -+ " .long 11b,100b\n" -+ " .long 12b,100b\n" -+ " .long 13b,100b\n" -+ " .long 14b,100b\n" -+ " .long 15b,100b\n" -+ " .long 16b,100b\n" -+ " .long 17b,100b\n" -+ " .long 18b,100b\n" -+ " .long 19b,100b\n" -+ " .long 20b,100b\n" -+ " .long 21b,100b\n" -+ " .long 22b,100b\n" -+ " .long 23b,100b\n" -+ " .long 24b,100b\n" -+ " .long 25b,100b\n" -+ " .long 26b,100b\n" -+ " .long 27b,100b\n" -+ " .long 28b,100b\n" -+ " .long 29b,100b\n" -+ " .long 30b,100b\n" -+ " .long 31b,100b\n" -+ " .long 32b,100b\n" -+ " .long 33b,100b\n" -+ " .long 34b,100b\n" -+ " .long 35b,100b\n" -+ " .long 36b,100b\n" -+ " .long 37b,100b\n" -+ " .long 99b,101b\n" -+ ".previous" -+ : "=&c"(size), "=&D" (d0), "=&S" (d1) -+ : "1"(to), "2"(from), "0"(size) -+ : "eax", "edx", "memory"); -+ return size; -+} -+ -+static unsigned long -+__generic_copy_from_user_intel(void *to, const void __user *from, unsigned long size) -+{ -+ int d0, d1; -+ __asm__ __volatile__( -+ " .align 2,0x90\n" -+ "1: "__copyuser_seg" movl 32(%4), %%eax\n" -+ " cmpl $67, %0\n" -+ " jbe 3f\n" -+ "2: "__copyuser_seg" movl 64(%4), %%eax\n" -+ " .align 2,0x90\n" -+ "3: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "4: "__copyuser_seg" movl 4(%4), %%edx\n" -+ "5: movl %%eax, 0(%3)\n" -+ "6: movl %%edx, 4(%3)\n" -+ "7: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "8: "__copyuser_seg" movl 12(%4),%%edx\n" -+ "9: movl %%eax, 8(%3)\n" -+ "10: movl %%edx, 12(%3)\n" -+ "11: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "12: "__copyuser_seg" movl 20(%4), %%edx\n" -+ "13: movl %%eax, 16(%3)\n" -+ "14: movl %%edx, 20(%3)\n" -+ "15: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "16: "__copyuser_seg" movl 28(%4), %%edx\n" -+ "17: movl %%eax, 24(%3)\n" -+ "18: movl %%edx, 28(%3)\n" -+ "19: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "20: "__copyuser_seg" movl 36(%4), %%edx\n" -+ "21: movl %%eax, 32(%3)\n" -+ "22: movl %%edx, 36(%3)\n" -+ "23: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "24: "__copyuser_seg" movl 44(%4), %%edx\n" -+ "25: movl %%eax, 40(%3)\n" -+ "26: movl %%edx, 44(%3)\n" -+ "27: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "28: "__copyuser_seg" movl 52(%4), %%edx\n" -+ "29: movl %%eax, 48(%3)\n" -+ "30: movl %%edx, 52(%3)\n" -+ "31: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "32: "__copyuser_seg" movl 60(%4), %%edx\n" -+ "33: movl %%eax, 56(%3)\n" -+ "34: movl %%edx, 60(%3)\n" -+ " addl $-64, %0\n" -+ " addl $64, %4\n" -+ " addl $64, %3\n" -+ " cmpl $63, %0\n" -+ " ja 1b\n" -+ "35: movl %0, %%eax\n" -+ " shrl $2, %0\n" -+ " andl $3, %%eax\n" -+ " cld\n" -+ "99: rep; "__copyuser_seg" movsl\n" -+ "36: movl %%eax, %0\n" -+ "37: rep; "__copyuser_seg" movsb\n" -+ "100:\n" - ".section .fixup,\"ax\"\n" - "101: lea 0(%%eax,%0,4),%0\n" - " jmp 100b\n" -@@ -339,41 +452,41 @@ __copy_user_zeroing_intel(void *to, cons - int d0, d1; - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movl %%eax, 0(%3)\n" - " movl %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movl %%eax, 8(%3)\n" - " movl %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movl %%eax, 16(%3)\n" - " movl %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movl %%eax, 24(%3)\n" - " movl %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movl %%eax, 32(%3)\n" - " movl %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movl %%eax, 40(%3)\n" - " movl %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movl %%eax, 48(%3)\n" - " movl %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movl %%eax, 56(%3)\n" - " movl %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -385,9 +498,9 @@ __copy_user_zeroing_intel(void *to, cons - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -440,41 +553,41 @@ static unsigned long __copy_user_zeroing - - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movnti %%eax, 0(%3)\n" - " movnti %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movnti %%eax, 8(%3)\n" - " movnti %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movnti %%eax, 16(%3)\n" - " movnti %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movnti %%eax, 24(%3)\n" - " movnti %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movnti %%eax, 32(%3)\n" - " movnti %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movnti %%eax, 40(%3)\n" - " movnti %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movnti %%eax, 48(%3)\n" - " movnti %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movnti %%eax, 56(%3)\n" - " movnti %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -487,9 +600,9 @@ static unsigned long __copy_user_zeroing - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -537,41 +650,41 @@ static unsigned long __copy_user_intel_n - - __asm__ __volatile__( - " .align 2,0x90\n" -- "0: movl 32(%4), %%eax\n" -+ "0: "__copyuser_seg" movl 32(%4), %%eax\n" - " cmpl $67, %0\n" - " jbe 2f\n" -- "1: movl 64(%4), %%eax\n" -+ "1: "__copyuser_seg" movl 64(%4), %%eax\n" - " .align 2,0x90\n" -- "2: movl 0(%4), %%eax\n" -- "21: movl 4(%4), %%edx\n" -+ "2: "__copyuser_seg" movl 0(%4), %%eax\n" -+ "21: "__copyuser_seg" movl 4(%4), %%edx\n" - " movnti %%eax, 0(%3)\n" - " movnti %%edx, 4(%3)\n" -- "3: movl 8(%4), %%eax\n" -- "31: movl 12(%4),%%edx\n" -+ "3: "__copyuser_seg" movl 8(%4), %%eax\n" -+ "31: "__copyuser_seg" movl 12(%4),%%edx\n" - " movnti %%eax, 8(%3)\n" - " movnti %%edx, 12(%3)\n" -- "4: movl 16(%4), %%eax\n" -- "41: movl 20(%4), %%edx\n" -+ "4: "__copyuser_seg" movl 16(%4), %%eax\n" -+ "41: "__copyuser_seg" movl 20(%4), %%edx\n" - " movnti %%eax, 16(%3)\n" - " movnti %%edx, 20(%3)\n" -- "10: movl 24(%4), %%eax\n" -- "51: movl 28(%4), %%edx\n" -+ "10: "__copyuser_seg" movl 24(%4), %%eax\n" -+ "51: "__copyuser_seg" movl 28(%4), %%edx\n" - " movnti %%eax, 24(%3)\n" - " movnti %%edx, 28(%3)\n" -- "11: movl 32(%4), %%eax\n" -- "61: movl 36(%4), %%edx\n" -+ "11: "__copyuser_seg" movl 32(%4), %%eax\n" -+ "61: "__copyuser_seg" movl 36(%4), %%edx\n" - " movnti %%eax, 32(%3)\n" - " movnti %%edx, 36(%3)\n" -- "12: movl 40(%4), %%eax\n" -- "71: movl 44(%4), %%edx\n" -+ "12: "__copyuser_seg" movl 40(%4), %%eax\n" -+ "71: "__copyuser_seg" movl 44(%4), %%edx\n" - " movnti %%eax, 40(%3)\n" - " movnti %%edx, 44(%3)\n" -- "13: movl 48(%4), %%eax\n" -- "81: movl 52(%4), %%edx\n" -+ "13: "__copyuser_seg" movl 48(%4), %%eax\n" -+ "81: "__copyuser_seg" movl 52(%4), %%edx\n" - " movnti %%eax, 48(%3)\n" - " movnti %%edx, 52(%3)\n" -- "14: movl 56(%4), %%eax\n" -- "91: movl 60(%4), %%edx\n" -+ "14: "__copyuser_seg" movl 56(%4), %%eax\n" -+ "91: "__copyuser_seg" movl 60(%4), %%edx\n" - " movnti %%eax, 56(%3)\n" - " movnti %%edx, 60(%3)\n" - " addl $-64, %0\n" -@@ -584,9 +697,9 @@ static unsigned long __copy_user_intel_n - " shrl $2, %0\n" - " andl $3, %%eax\n" - " cld\n" -- "6: rep; movsl\n" -+ "6: rep; "__copyuser_seg" movsl\n" - " movl %%eax,%0\n" -- "7: rep; movsb\n" -+ "7: rep; "__copyuser_seg" movsb\n" - "8:\n" - ".section .fixup,\"ax\"\n" - "9: lea 0(%%eax,%0,4),%0\n" -@@ -629,32 +742,36 @@ static unsigned long __copy_user_intel_n - */ - unsigned long __copy_user_zeroing_intel(void *to, const void __user *from, - unsigned long size); --unsigned long __copy_user_intel(void __user *to, const void *from, -+unsigned long __generic_copy_to_user_intel(void __user *to, const void *from, -+ unsigned long size); -+unsigned long __generic_copy_from_user_intel(void *to, const void __user *from, - unsigned long size); - unsigned long __copy_user_zeroing_intel_nocache(void *to, - const void __user *from, unsigned long size); - #endif /* CONFIG_X86_INTEL_USERCOPY */ - - /* Generic arbitrary sized copy. */ --#define __copy_user(to, from, size) \ -+#define __copy_user(to, from, size, prefix, set, restore) \ - do { \ - int __d0, __d1, __d2; \ - __asm__ __volatile__( \ -+ set \ - " cmp $7,%0\n" \ - " jbe 1f\n" \ - " movl %1,%0\n" \ - " negl %0\n" \ - " andl $7,%0\n" \ - " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -+ "4: rep; "prefix"movsb\n" \ - " movl %3,%0\n" \ - " shrl $2,%0\n" \ - " andl $3,%3\n" \ - " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -+ "0: rep; "prefix"movsl\n" \ - " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -+ "1: rep; "prefix"movsb\n" \ - "2:\n" \ -+ restore \ - ".section .fixup,\"ax\"\n" \ - "5: addl %3,%0\n" \ - " jmp 2b\n" \ -@@ -682,14 +799,14 @@ do { \ - " negl %0\n" \ - " andl $7,%0\n" \ - " subl %0,%3\n" \ -- "4: rep; movsb\n" \ -+ "4: rep; "__copyuser_seg"movsb\n" \ - " movl %3,%0\n" \ - " shrl $2,%0\n" \ - " andl $3,%3\n" \ - " .align 2,0x90\n" \ -- "0: rep; movsl\n" \ -+ "0: rep; "__copyuser_seg"movsl\n" \ - " movl %3,%0\n" \ -- "1: rep; movsb\n" \ -+ "1: rep; "__copyuser_seg"movsb\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "5: addl %3,%0\n" \ -@@ -775,9 +892,9 @@ survive: - } - #endif - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ __copy_user(to, from, n, "", __COPYUSER_SET_ES, __COPYUSER_RESTORE_ES); - else -- n = __copy_user_intel(to, from, n); -+ n = __generic_copy_to_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_to_user_ll); -@@ -797,10 +914,9 @@ unsigned long __copy_from_user_ll_nozero - unsigned long n) - { - if (movsl_is_ok(to, from, n)) -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - else -- n = __copy_user_intel((void __user *)to, -- (const void *)from, n); -+ n = __generic_copy_from_user_intel(to, from, n); - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nozero); -@@ -827,65 +943,50 @@ unsigned long __copy_from_user_ll_nocach - if (n > 64 && cpu_has_xmm2) - n = __copy_user_intel_nocache(to, from, n); - else -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - #else -- __copy_user(to, from, n); -+ __copy_user(to, from, n, __copyuser_seg, "", ""); - #endif - return n; - } - EXPORT_SYMBOL(__copy_from_user_ll_nocache_nozero); - --/** -- * copy_to_user: - Copy a block of data into user space. -- * @to: Destination address, in user space. -- * @from: Source address, in kernel space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from kernel space to user space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- */ --unsigned long --copy_to_user(void __user *to, const void *from, unsigned long n) -+void copy_from_user_overflow(void) - { -- if (access_ok(VERIFY_WRITE, to, n)) -- n = __copy_to_user(to, from, n); -- return n; -+ WARN(1, "Buffer overflow detected!\n"); - } --EXPORT_SYMBOL(copy_to_user); -+EXPORT_SYMBOL(copy_from_user_overflow); - --/** -- * copy_from_user: - Copy a block of data from user space. -- * @to: Destination address, in kernel space. -- * @from: Source address, in user space. -- * @n: Number of bytes to copy. -- * -- * Context: User context only. This function may sleep. -- * -- * Copy data from user space to kernel space. -- * -- * Returns number of bytes that could not be copied. -- * On success, this will be zero. -- * -- * If some data could not be copied, this function will pad the copied -- * data to the requested size using zero bytes. -- */ --unsigned long --_copy_from_user(void *to, const void __user *from, unsigned long n) -+void copy_to_user_overflow(void) - { -- if (access_ok(VERIFY_READ, from, n)) -- n = __copy_from_user(to, from, n); -- else -- memset(to, 0, n); -- return n; -+ WARN(1, "Buffer overflow detected!\n"); - } --EXPORT_SYMBOL(_copy_from_user); -+EXPORT_SYMBOL(copy_to_user_overflow); - --void copy_from_user_overflow(void) -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+void __set_fs(mm_segment_t x) - { -- WARN(1, "Buffer overflow detected!\n"); -+ switch (x.seg) { -+ case 0: -+ loadsegment(gs, 0); -+ break; -+ case TASK_SIZE_MAX: -+ loadsegment(gs, __USER_DS); -+ break; -+ case -1UL: -+ loadsegment(gs, __KERNEL_DS); -+ break; -+ default: -+ BUG(); -+ } -+ return; - } --EXPORT_SYMBOL(copy_from_user_overflow); -+EXPORT_SYMBOL(__set_fs); -+ -+void set_fs(mm_segment_t x) -+{ -+ current_thread_info()->addr_limit = x; -+ __set_fs(x); -+} -+EXPORT_SYMBOL(set_fs); -+#endif -diff -urNp linux-3.0.4/arch/x86/lib/usercopy_64.c linux-3.0.4/arch/x86/lib/usercopy_64.c ---- linux-3.0.4/arch/x86/lib/usercopy_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/lib/usercopy_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,6 +42,12 @@ long - __strncpy_from_user(char *dst, const char __user *src, long count) - { - long res; -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)src < PAX_USER_SHADOW_BASE) -+ src += PAX_USER_SHADOW_BASE; -+#endif -+ - __do_strncpy_from_user(dst, src, count, res); - return res; - } -@@ -65,6 +71,12 @@ unsigned long __clear_user(void __user * - { - long __d0; - might_fault(); -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)addr < PAX_USER_SHADOW_BASE) -+ addr += PAX_USER_SHADOW_BASE; -+#endif -+ - /* no memory constraint because it doesn't change any memory gcc knows - about */ - asm volatile( -@@ -151,10 +163,18 @@ EXPORT_SYMBOL(strlen_user); - - unsigned long copy_in_user(void __user *to, const void __user *from, unsigned len) - { -- if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { -+ if (access_ok(VERIFY_WRITE, to, len) && access_ok(VERIFY_READ, from, len)) { -+ -+#ifdef CONFIG_PAX_MEMORY_UDEREF -+ if ((unsigned long)to < PAX_USER_SHADOW_BASE) -+ to += PAX_USER_SHADOW_BASE; -+ if ((unsigned long)from < PAX_USER_SHADOW_BASE) -+ from += PAX_USER_SHADOW_BASE; -+#endif -+ - return copy_user_generic((__force void *)to, (__force void *)from, len); -- } -- return len; -+ } -+ return len; - } - EXPORT_SYMBOL(copy_in_user); - -diff -urNp linux-3.0.4/arch/x86/Makefile linux-3.0.4/arch/x86/Makefile ---- linux-3.0.4/arch/x86/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/Makefile 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,7 @@ ifeq ($(CONFIG_X86_32),y) - else - BITS := 64 - UTS_MACHINE := x86_64 -+ biarch := $(call cc-option,-m64) - CHECKFLAGS += -D__x86_64__ -m64 - - KBUILD_AFLAGS += -m64 -@@ -195,3 +196,12 @@ define archhelp - echo ' FDARGS="..." arguments for the booted kernel' - echo ' FDINITRD=file initrd for the booted kernel' - endef -+ -+define OLD_LD -+ -+*** ${VERSION}.${PATCHLEVEL} PaX kernels no longer build correctly with old versions of binutils. -+*** Please upgrade your binutils to 2.18 or newer -+endef -+ -+archprepare: -+ $(if $(LDFLAGS_BUILD_ID),,$(error $(OLD_LD))) -diff -urNp linux-3.0.4/arch/x86/mm/extable.c linux-3.0.4/arch/x86/mm/extable.c ---- linux-3.0.4/arch/x86/mm/extable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/extable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -8,7 +8,7 @@ int fixup_exception(struct pt_regs *regs - const struct exception_table_entry *fixup; - - #ifdef CONFIG_PNPBIOS -- if (unlikely(SEGMENT_IS_PNP_CODE(regs->cs))) { -+ if (unlikely(!v8086_mode(regs) && SEGMENT_IS_PNP_CODE(regs->cs))) { - extern u32 pnp_bios_fault_eip, pnp_bios_fault_esp; - extern u32 pnp_bios_is_utter_crap; - pnp_bios_is_utter_crap = 1; -diff -urNp linux-3.0.4/arch/x86/mm/fault.c linux-3.0.4/arch/x86/mm/fault.c ---- linux-3.0.4/arch/x86/mm/fault.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/fault.c 2011-08-23 21:48:14.000000000 -0400 -@@ -13,10 +13,18 @@ - #include /* perf_sw_event */ - #include /* hstate_index_to_shift */ - #include /* prefetchw */ -+#include -+#include - - #include /* dotraplinkage, ... */ - #include /* pgd_*(), ... */ - #include /* kmemcheck_*(), ... */ -+#include -+#include -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+#include -+#endif - - /* - * Page fault error code bits: -@@ -54,7 +62,7 @@ static inline int __kprobes notify_page_ - int ret = 0; - - /* kprobe_running() needs smp_processor_id() */ -- if (kprobes_built_in() && !user_mode_vm(regs)) { -+ if (kprobes_built_in() && !user_mode(regs)) { - preempt_disable(); - if (kprobe_running() && kprobe_fault_handler(regs, 14)) - ret = 1; -@@ -115,7 +123,10 @@ check_prefetch_opcode(struct pt_regs *re - return !instr_lo || (instr_lo>>1) == 1; - case 0x00: - /* Prefetch instruction is 0x0F0D or 0x0F18 */ -- if (probe_kernel_address(instr, opcode)) -+ if (user_mode(regs)) { -+ if (__copy_from_user_inatomic(&opcode, (__force unsigned char __user *)(instr), 1)) -+ return 0; -+ } else if (probe_kernel_address(instr, opcode)) - return 0; - - *prefetch = (instr_lo == 0xF) && -@@ -149,7 +160,10 @@ is_prefetch(struct pt_regs *regs, unsign - while (instr < max_instr) { - unsigned char opcode; - -- if (probe_kernel_address(instr, opcode)) -+ if (user_mode(regs)) { -+ if (__copy_from_user_inatomic(&opcode, (__force unsigned char __user *)(instr), 1)) -+ break; -+ } else if (probe_kernel_address(instr, opcode)) - break; - - instr++; -@@ -180,6 +194,30 @@ force_sig_info_fault(int si_signo, int s - force_sig_info(si_signo, &info, tsk); - } - -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault(struct pt_regs *regs); -+#endif -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+static inline pmd_t * pax_get_pmd(struct mm_struct *mm, unsigned long address) -+{ -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ -+ pgd = pgd_offset(mm, address); -+ if (!pgd_present(*pgd)) -+ return NULL; -+ pud = pud_offset(pgd, address); -+ if (!pud_present(*pud)) -+ return NULL; -+ pmd = pmd_offset(pud, address); -+ if (!pmd_present(*pmd)) -+ return NULL; -+ return pmd; -+} -+#endif -+ - DEFINE_SPINLOCK(pgd_lock); - LIST_HEAD(pgd_list); - -@@ -230,10 +268,22 @@ void vmalloc_sync_all(void) - for (address = VMALLOC_START & PMD_MASK; - address >= TASK_SIZE && address < FIXADDR_TOP; - address += PMD_SIZE) { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - - spin_lock(&pgd_lock); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < NR_CPUS; ++cpu) { -+ pgd_t *pgd = get_cpu_pgd(cpu); -+ pmd_t *ret; -+#else - list_for_each_entry(page, &pgd_list, lru) { -+ pgd_t *pgd = page_address(page); - spinlock_t *pgt_lock; - pmd_t *ret; - -@@ -241,8 +291,13 @@ void vmalloc_sync_all(void) - pgt_lock = &pgd_page_get_mm(page)->page_table_lock; - - spin_lock(pgt_lock); -- ret = vmalloc_sync_one(page_address(page), address); -+#endif -+ -+ ret = vmalloc_sync_one(pgd, address); -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - spin_unlock(pgt_lock); -+#endif - - if (!ret) - break; -@@ -276,6 +331,11 @@ static noinline __kprobes int vmalloc_fa - * an interrupt in the middle of a task switch.. - */ - pgd_paddr = read_cr3(); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (pgd_paddr & PHYSICAL_PAGE_MASK)); -+#endif -+ - pmd_k = vmalloc_sync_one(__va(pgd_paddr), address); - if (!pmd_k) - return -1; -@@ -371,7 +431,14 @@ static noinline __kprobes int vmalloc_fa - * happen within a race in page table update. In the later - * case just flush: - */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ BUG_ON(__pa(get_cpu_pgd(smp_processor_id())) != (read_cr3() & PHYSICAL_PAGE_MASK)); -+ pgd = pgd_offset_cpu(smp_processor_id(), address); -+#else - pgd = pgd_offset(current->active_mm, address); -+#endif -+ - pgd_ref = pgd_offset_k(address); - if (pgd_none(*pgd_ref)) - return -1; -@@ -533,7 +600,7 @@ static int is_errata93(struct pt_regs *r - static int is_errata100(struct pt_regs *regs, unsigned long address) - { - #ifdef CONFIG_X86_64 -- if ((regs->cs == __USER32_CS || (regs->cs & (1<<2))) && (address >> 32)) -+ if ((regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) && (address >> 32)) - return 1; - #endif - return 0; -@@ -560,7 +627,7 @@ static int is_f00f_bug(struct pt_regs *r - } - - static const char nx_warning[] = KERN_CRIT --"kernel tried to execute NX-protected page - exploit attempt? (uid: %d)\n"; -+"kernel tried to execute NX-protected page - exploit attempt? (uid: %d, task: %s, pid: %d)\n"; - - static void - show_fault_oops(struct pt_regs *regs, unsigned long error_code, -@@ -569,14 +636,25 @@ show_fault_oops(struct pt_regs *regs, un - if (!oops_may_print()) - return; - -- if (error_code & PF_INSTR) { -+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) { - unsigned int level; - - pte_t *pte = lookup_address(address, &level); - - if (pte && pte_present(*pte) && !pte_exec(*pte)) -- printk(nx_warning, current_uid()); -+ printk(nx_warning, current_uid(), current->comm, task_pid_nr(current)); -+ } -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ if (init_mm.start_code <= address && address < init_mm.end_code) { -+ if (current->signal->curr_ip) -+ printk(KERN_ERR "PAX: From %pI4: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ ¤t->signal->curr_ip, current->comm, task_pid_nr(current), current_uid(), current_euid()); -+ else -+ printk(KERN_ERR "PAX: %s:%d, uid/euid: %u/%u, attempted to modify kernel code\n", -+ current->comm, task_pid_nr(current), current_uid(), current_euid()); - } -+#endif - - printk(KERN_ALERT "BUG: unable to handle kernel "); - if (address < PAGE_SIZE) -@@ -702,6 +780,66 @@ __bad_area_nosemaphore(struct pt_regs *r - unsigned long address, int si_code) - { - struct task_struct *tsk = current; -+#if defined(CONFIG_X86_64) || defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ struct mm_struct *mm = tsk->mm; -+#endif -+ -+#ifdef CONFIG_X86_64 -+ if (mm && (error_code & PF_INSTR) && mm->context.vdso) { -+ if (regs->ip == VSYSCALL_ADDR(__NR_vgettimeofday) || -+ regs->ip == VSYSCALL_ADDR(__NR_vtime) || -+ regs->ip == VSYSCALL_ADDR(__NR_vgetcpu)) { -+ regs->ip += mm->context.vdso - PAGE_SIZE - VSYSCALL_START; -+ return; -+ } -+ } -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ if (mm && (error_code & PF_USER)) { -+ unsigned long ip = regs->ip; -+ -+ if (v8086_mode(regs)) -+ ip = ((regs->cs & 0xffff) << 4) + (ip & 0xffff); -+ -+ /* -+ * It's possible to have interrupts off here: -+ */ -+ local_irq_enable(); -+ -+#ifdef CONFIG_PAX_PAGEEXEC -+ if ((mm->pax_flags & MF_PAX_PAGEEXEC) && -+ (((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR)) || (!(error_code & (PF_PROT | PF_WRITE)) && ip == address))) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if ((mm->pax_flags & MF_PAX_SEGMEXEC) && !(error_code & (PF_PROT | PF_WRITE)) && (ip + SEGMEXEC_TASK_SIZE == address)) { -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+#endif -+ -+ } -+#endif - - /* User mode accesses just cause a SIGSEGV */ - if (error_code & PF_USER) { -@@ -871,6 +1009,99 @@ static int spurious_fault_check(unsigned - return 1; - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+static int pax_handle_pageexec_fault(struct pt_regs *regs, struct mm_struct *mm, unsigned long address, unsigned long error_code) -+{ -+ pte_t *pte; -+ pmd_t *pmd; -+ spinlock_t *ptl; -+ unsigned char pte_mask; -+ -+ if ((__supported_pte_mask & _PAGE_NX) || (error_code & (PF_PROT|PF_USER)) != (PF_PROT|PF_USER) || v8086_mode(regs) || -+ !(mm->pax_flags & MF_PAX_PAGEEXEC)) -+ return 0; -+ -+ /* PaX: it's our fault, let's handle it if we can */ -+ -+ /* PaX: take a look at read faults before acquiring any locks */ -+ if (unlikely(!(error_code & PF_WRITE) && (regs->ip == address))) { -+ /* instruction fetch attempt from a protected page in user mode */ -+ up_read(&mm->mmap_sem); -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+ switch (pax_handle_fetch_fault(regs)) { -+ case 2: -+ return 1; -+ } -+#endif -+ -+ pax_report_fault(regs, (void *)regs->ip, (void *)regs->sp); -+ do_group_exit(SIGKILL); -+ } -+ -+ pmd = pax_get_pmd(mm, address); -+ if (unlikely(!pmd)) -+ return 0; -+ -+ pte = pte_offset_map_lock(mm, pmd, address, &ptl); -+ if (unlikely(!(pte_val(*pte) & _PAGE_PRESENT) || pte_user(*pte))) { -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+ if (unlikely((error_code & PF_WRITE) && !pte_write(*pte))) { -+ /* write attempt to a protected page in user mode */ -+ pte_unmap_unlock(pte, ptl); -+ return 0; -+ } -+ -+#ifdef CONFIG_SMP -+ if (likely(address > get_limit(regs->cs) && cpu_isset(smp_processor_id(), mm->context.cpu_user_cs_mask))) -+#else -+ if (likely(address > get_limit(regs->cs))) -+#endif -+ { -+ set_pte(pte, pte_mkread(*pte)); -+ __flush_tlb_one(address); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+ } -+ -+ pte_mask = _PAGE_ACCESSED | _PAGE_USER | ((error_code & PF_WRITE) << (_PAGE_BIT_DIRTY-1)); -+ -+ /* -+ * PaX: fill DTLB with user rights and retry -+ */ -+ __asm__ __volatile__ ( -+ "orb %2,(%1)\n" -+#if defined(CONFIG_M586) || defined(CONFIG_M586TSC) -+/* -+ * PaX: let this uncommented 'invlpg' remind us on the behaviour of Intel's -+ * (and AMD's) TLBs. namely, they do not cache PTEs that would raise *any* -+ * page fault when examined during a TLB load attempt. this is true not only -+ * for PTEs holding a non-present entry but also present entries that will -+ * raise a page fault (such as those set up by PaX, or the copy-on-write -+ * mechanism). in effect it means that we do *not* need to flush the TLBs -+ * for our target pages since their PTEs are simply not in the TLBs at all. -+ -+ * the best thing in omitting it is that we gain around 15-20% speed in the -+ * fast path of the page fault handler and can get rid of tracing since we -+ * can no longer flush unintended entries. -+ */ -+ "invlpg (%0)\n" -+#endif -+ __copyuser_seg"testb $0,(%0)\n" -+ "xorb %3,(%1)\n" -+ : -+ : "r" (address), "r" (pte), "q" (pte_mask), "i" (_PAGE_USER) -+ : "memory", "cc"); -+ pte_unmap_unlock(pte, ptl); -+ up_read(&mm->mmap_sem); -+ return 1; -+} -+#endif -+ - /* - * Handle a spurious fault caused by a stale TLB entry. - * -@@ -943,6 +1174,9 @@ int show_unhandled_signals = 1; - static inline int - access_error(unsigned long error_code, struct vm_area_struct *vma) - { -+ if ((__supported_pte_mask & _PAGE_NX) && (error_code & PF_INSTR) && !(vma->vm_flags & VM_EXEC)) -+ return 1; -+ - if (error_code & PF_WRITE) { - /* write, present and write, not present: */ - if (unlikely(!(vma->vm_flags & VM_WRITE))) -@@ -976,19 +1210,33 @@ do_page_fault(struct pt_regs *regs, unsi - { - struct vm_area_struct *vma; - struct task_struct *tsk; -- unsigned long address; - struct mm_struct *mm; - int fault; - int write = error_code & PF_WRITE; - unsigned int flags = FAULT_FLAG_ALLOW_RETRY | FAULT_FLAG_KILLABLE | - (write ? FAULT_FLAG_WRITE : 0); - -+ /* Get the faulting address: */ -+ unsigned long address = read_cr2(); -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ if (!user_mode(regs) && address < 2 * PAX_USER_SHADOW_BASE) { -+ if (!search_exception_tables(regs->ip)) { -+ bad_area_nosemaphore(regs, error_code, address); -+ return; -+ } -+ if (address < PAX_USER_SHADOW_BASE) { -+ printk(KERN_ERR "PAX: please report this to pageexec@freemail.hu\n"); -+ printk(KERN_ERR "PAX: faulting IP: %pA\n", (void *)regs->ip); -+ show_trace_log_lvl(NULL, NULL, (void *)regs->sp, regs->bp, KERN_ERR); -+ } else -+ address -= PAX_USER_SHADOW_BASE; -+ } -+#endif -+ - tsk = current; - mm = tsk->mm; - -- /* Get the faulting address: */ -- address = read_cr2(); -- - /* - * Detect and handle instructions that would cause a page fault for - * both a tracked kernel page and a userspace page. -@@ -1048,7 +1296,7 @@ do_page_fault(struct pt_regs *regs, unsi - * User-mode registers count as a user access even for any - * potential system fault or CPU buglet: - */ -- if (user_mode_vm(regs)) { -+ if (user_mode(regs)) { - local_irq_enable(); - error_code |= PF_USER; - } else { -@@ -1103,6 +1351,11 @@ retry: - might_sleep(); - } - -+#if defined(CONFIG_X86_32) && defined(CONFIG_PAX_PAGEEXEC) -+ if (pax_handle_pageexec_fault(regs, mm, address, error_code)) -+ return; -+#endif -+ - vma = find_vma(mm, address); - if (unlikely(!vma)) { - bad_area(regs, error_code, address); -@@ -1114,18 +1367,24 @@ retry: - bad_area(regs, error_code, address); - return; - } -- if (error_code & PF_USER) { -- /* -- * Accessing the stack below %sp is always a bug. -- * The large cushion allows instructions like enter -- * and pusha to work. ("enter $65535, $31" pushes -- * 32 pointers and then decrements %sp by 65535.) -- */ -- if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < regs->sp)) { -- bad_area(regs, error_code, address); -- return; -- } -+ /* -+ * Accessing the stack below %sp is always a bug. -+ * The large cushion allows instructions like enter -+ * and pusha to work. ("enter $65535, $31" pushes -+ * 32 pointers and then decrements %sp by 65535.) -+ */ -+ if (unlikely(address + 65536 + 32 * sizeof(unsigned long) < task_pt_regs(tsk)->sp)) { -+ bad_area(regs, error_code, address); -+ return; - } -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (unlikely((mm->pax_flags & MF_PAX_SEGMEXEC) && vma->vm_end - SEGMEXEC_TASK_SIZE - 1 < address - SEGMEXEC_TASK_SIZE - 1)) { -+ bad_area(regs, error_code, address); -+ return; -+ } -+#endif -+ - if (unlikely(expand_stack(vma, address))) { - bad_area(regs, error_code, address); - return; -@@ -1180,3 +1439,199 @@ good_area: - - up_read(&mm->mmap_sem); - } -+ -+#ifdef CONFIG_PAX_EMUTRAMP -+static int pax_handle_fetch_fault_32(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned char mov1, mov2; -+ unsigned short jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 11) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov1, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(mov2, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ err |= get_user(jmp, (unsigned short __user *)(regs->ip + 10)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xB9 && mov2 == 0xB8 && jmp == 0xE0FF) { -+ regs->cx = addr1; -+ regs->ax = addr2; -+ regs->ip = addr2; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned char mov, jmp; -+ unsigned int addr1, addr2; -+ -+#ifdef CONFIG_X86_64 -+ if ((regs->ip + 9) >> 32) -+ break; -+#endif -+ -+ err = get_user(mov, (unsigned char __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 1)); -+ err |= get_user(jmp, (unsigned char __user *)(regs->ip + 5)); -+ err |= get_user(addr2, (unsigned int __user *)(regs->ip + 6)); -+ -+ if (err) -+ break; -+ -+ if (mov == 0xB9 && jmp == 0xE9) { -+ regs->cx = addr1; -+ regs->ip = (unsigned int)(regs->ip + addr2 + 10); -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+ -+#ifdef CONFIG_X86_64 -+static int pax_handle_fetch_fault_64(struct pt_regs *regs) -+{ -+ int err; -+ -+ do { /* PaX: gcc trampoline emulation #1 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned int addr1; -+ unsigned long addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned int __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 6)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 8)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 16)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 18)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB41 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ do { /* PaX: gcc trampoline emulation #2 */ -+ unsigned short mov1, mov2, jmp1; -+ unsigned char jmp2; -+ unsigned long addr1, addr2; -+ -+ err = get_user(mov1, (unsigned short __user *)regs->ip); -+ err |= get_user(addr1, (unsigned long __user *)(regs->ip + 2)); -+ err |= get_user(mov2, (unsigned short __user *)(regs->ip + 10)); -+ err |= get_user(addr2, (unsigned long __user *)(regs->ip + 12)); -+ err |= get_user(jmp1, (unsigned short __user *)(regs->ip + 20)); -+ err |= get_user(jmp2, (unsigned char __user *)(regs->ip + 22)); -+ -+ if (err) -+ break; -+ -+ if (mov1 == 0xBB49 && mov2 == 0xBA49 && jmp1 == 0xFF49 && jmp2 == 0xE3) { -+ regs->r11 = addr1; -+ regs->r10 = addr2; -+ regs->ip = addr1; -+ return 2; -+ } -+ } while (0); -+ -+ return 1; /* PaX in action */ -+} -+#endif -+ -+/* -+ * PaX: decide what to do with offenders (regs->ip = fault address) -+ * -+ * returns 1 when task should be killed -+ * 2 when gcc trampoline was detected -+ */ -+static int pax_handle_fetch_fault(struct pt_regs *regs) -+{ -+ if (v8086_mode(regs)) -+ return 1; -+ -+ if (!(current->mm->pax_flags & MF_PAX_EMUTRAMP)) -+ return 1; -+ -+#ifdef CONFIG_X86_32 -+ return pax_handle_fetch_fault_32(regs); -+#else -+ if (regs->cs == __USER32_CS || (regs->cs & SEGMENT_LDT)) -+ return pax_handle_fetch_fault_32(regs); -+ else -+ return pax_handle_fetch_fault_64(regs); -+#endif -+} -+#endif -+ -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+void pax_report_insns(void *pc, void *sp) -+{ -+ long i; -+ -+ printk(KERN_ERR "PAX: bytes at PC: "); -+ for (i = 0; i < 20; i++) { -+ unsigned char c; -+ if (get_user(c, (__force unsigned char __user *)pc+i)) -+ printk(KERN_CONT "?? "); -+ else -+ printk(KERN_CONT "%02x ", c); -+ } -+ printk("\n"); -+ -+ printk(KERN_ERR "PAX: bytes at SP-%lu: ", (unsigned long)sizeof(long)); -+ for (i = -1; i < 80 / (long)sizeof(long); i++) { -+ unsigned long c; -+ if (get_user(c, (__force unsigned long __user *)sp+i)) -+#ifdef CONFIG_X86_32 -+ printk(KERN_CONT "???????? "); -+#else -+ printk(KERN_CONT "???????????????? "); -+#endif -+ else -+ printk(KERN_CONT "%0*lx ", 2 * (int)sizeof(long), c); -+ } -+ printk("\n"); -+} -+#endif -+ -+/** -+ * probe_kernel_write(): safely attempt to write to a location -+ * @dst: address to write to -+ * @src: pointer to the data that shall be written -+ * @size: size of the data chunk -+ * -+ * Safely write to address @dst from the buffer at @src. If a kernel fault -+ * happens, handle that and return -EFAULT. -+ */ -+long notrace probe_kernel_write(void *dst, const void *src, size_t size) -+{ -+ long ret; -+ mm_segment_t old_fs = get_fs(); -+ -+ set_fs(KERNEL_DS); -+ pagefault_disable(); -+ pax_open_kernel(); -+ ret = __copy_to_user_inatomic((__force void __user *)dst, src, size); -+ pax_close_kernel(); -+ pagefault_enable(); -+ set_fs(old_fs); -+ -+ return ret ? -EFAULT : 0; -+} -diff -urNp linux-3.0.4/arch/x86/mm/gup.c linux-3.0.4/arch/x86/mm/gup.c ---- linux-3.0.4/arch/x86/mm/gup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/gup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -263,7 +263,7 @@ int __get_user_pages_fast(unsigned long - addr = start; - len = (unsigned long) nr_pages << PAGE_SHIFT; - end = start + len; -- if (unlikely(!access_ok(write ? VERIFY_WRITE : VERIFY_READ, -+ if (unlikely(!__access_ok(write ? VERIFY_WRITE : VERIFY_READ, - (void __user *)start, len))) - return 0; - -diff -urNp linux-3.0.4/arch/x86/mm/highmem_32.c linux-3.0.4/arch/x86/mm/highmem_32.c ---- linux-3.0.4/arch/x86/mm/highmem_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/highmem_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,10 @@ void *kmap_atomic_prot(struct page *page - idx = type + KM_TYPE_NR*smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); - BUG_ON(!pte_none(*(kmap_pte-idx))); -+ -+ pax_open_kernel(); - set_pte(kmap_pte-idx, mk_pte(page, prot)); -+ pax_close_kernel(); - - return (void *)vaddr; - } -diff -urNp linux-3.0.4/arch/x86/mm/hugetlbpage.c linux-3.0.4/arch/x86/mm/hugetlbpage.c ---- linux-3.0.4/arch/x86/mm/hugetlbpage.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/hugetlbpage.c 2011-08-23 21:47:55.000000000 -0400 -@@ -266,13 +266,20 @@ static unsigned long hugetlb_get_unmappe - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -- unsigned long start_addr; -+ unsigned long start_addr, pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; - - if (len > mm->cached_hole_size) { -- start_addr = mm->free_area_cache; -+ start_addr = mm->free_area_cache; - } else { -- start_addr = TASK_UNMAPPED_BASE; -- mm->cached_hole_size = 0; -+ start_addr = mm->mmap_base; -+ mm->cached_hole_size = 0; - } - - full_search: -@@ -280,26 +287,27 @@ full_search: - - for (vma = find_vma(mm, addr); ; vma = vma->vm_next) { - /* At this point: (!vma || addr < vma->vm_end). */ -- if (TASK_SIZE - len < addr) { -+ if (pax_task_size - len < addr) { - /* - * Start a new search - just in case we missed - * some holes. - */ -- if (start_addr != TASK_UNMAPPED_BASE) { -- start_addr = TASK_UNMAPPED_BASE; -+ if (start_addr != mm->mmap_base) { -+ start_addr = mm->mmap_base; - mm->cached_hole_size = 0; - goto full_search; - } - return -ENOMEM; - } -- if (!vma || addr + len <= vma->vm_start) { -- mm->free_area_cache = addr + len; -- return addr; -- } -+ if (check_heap_stack_gap(vma, addr, len)) -+ break; - if (addr + mm->cached_hole_size < vma->vm_start) - mm->cached_hole_size = vma->vm_start - addr; - addr = ALIGN(vma->vm_end, huge_page_size(h)); - } -+ -+ mm->free_area_cache = addr + len; -+ return addr; - } - - static unsigned long hugetlb_get_unmapped_area_topdown(struct file *file, -@@ -308,10 +316,9 @@ static unsigned long hugetlb_get_unmappe - { - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; -- struct vm_area_struct *vma, *prev_vma; -- unsigned long base = mm->mmap_base, addr = addr0; -+ struct vm_area_struct *vma; -+ unsigned long base = mm->mmap_base, addr; - unsigned long largest_hole = mm->cached_hole_size; -- int first_time = 1; - - /* don't allow allocations above current base */ - if (mm->free_area_cache > base) -@@ -321,64 +328,63 @@ static unsigned long hugetlb_get_unmappe - largest_hole = 0; - mm->free_area_cache = base; - } --try_again: -+ - /* make sure it can fit in the remaining address space */ - if (mm->free_area_cache < len) - goto fail; - - /* either no address requested or can't fit in requested address hole */ -- addr = (mm->free_area_cache - len) & huge_page_mask(h); -+ addr = (mm->free_area_cache - len); - do { -+ addr &= huge_page_mask(h); -+ vma = find_vma(mm, addr); - /* - * Lookup failure means no vma is above this address, - * i.e. return with success: -- */ -- if (!(vma = find_vma_prev(mm, addr, &prev_vma))) -- return addr; -- -- /* - * new region fits between prev_vma->vm_end and - * vma->vm_start, use it: - */ -- if (addr + len <= vma->vm_start && -- (!prev_vma || (addr >= prev_vma->vm_end))) { -+ if (check_heap_stack_gap(vma, addr, len)) { - /* remember the address as a hint for next time */ -- mm->cached_hole_size = largest_hole; -- return (mm->free_area_cache = addr); -- } else { -- /* pull free_area_cache down to the first hole */ -- if (mm->free_area_cache == vma->vm_end) { -- mm->free_area_cache = vma->vm_start; -- mm->cached_hole_size = largest_hole; -- } -+ mm->cached_hole_size = largest_hole; -+ return (mm->free_area_cache = addr); -+ } -+ /* pull free_area_cache down to the first hole */ -+ if (mm->free_area_cache == vma->vm_end) { -+ mm->free_area_cache = vma->vm_start; -+ mm->cached_hole_size = largest_hole; - } - - /* remember the largest hole we saw so far */ - if (addr + largest_hole < vma->vm_start) -- largest_hole = vma->vm_start - addr; -+ largest_hole = vma->vm_start - addr; - - /* try just below the current vma->vm_start */ -- addr = (vma->vm_start - len) & huge_page_mask(h); -- } while (len <= vma->vm_start); -+ addr = skip_heap_stack_gap(vma, len); -+ } while (!IS_ERR_VALUE(addr)); - - fail: - /* -- * if hint left us with no space for the requested -- * mapping then try again: -- */ -- if (first_time) { -- mm->free_area_cache = base; -- largest_hole = 0; -- first_time = 0; -- goto try_again; -- } -- /* - * A failed mmap() very likely causes application failure, - * so fall back to the bottom-up function here. This scenario - * can happen with large stack limits and large mmap() - * allocations. - */ -- mm->free_area_cache = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ mm->mmap_base = SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ -+ mm->mmap_base = TASK_UNMAPPED_BASE; -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ -+ mm->free_area_cache = mm->mmap_base; - mm->cached_hole_size = ~0UL; - addr = hugetlb_get_unmapped_area_bottomup(file, addr0, - len, pgoff, flags); -@@ -386,6 +392,7 @@ fail: - /* - * Restore the topdown base: - */ -+ mm->mmap_base = base; - mm->free_area_cache = base; - mm->cached_hole_size = ~0UL; - -@@ -399,10 +406,19 @@ hugetlb_get_unmapped_area(struct file *f - struct hstate *h = hstate_file(file); - struct mm_struct *mm = current->mm; - struct vm_area_struct *vma; -+ unsigned long pax_task_size = TASK_SIZE; - - if (len & ~huge_page_mask(h)) - return -EINVAL; -- if (len > TASK_SIZE) -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif -+ -+ pax_task_size -= PAGE_SIZE; -+ -+ if (len > pax_task_size) - return -ENOMEM; - - if (flags & MAP_FIXED) { -@@ -414,8 +430,7 @@ hugetlb_get_unmapped_area(struct file *f - if (addr) { - addr = ALIGN(addr, huge_page_size(h)); - vma = find_vma(mm, addr); -- if (TASK_SIZE - len >= addr && -- (!vma || addr + len <= vma->vm_start)) -+ if (pax_task_size - len >= addr && check_heap_stack_gap(vma, addr, len)) - return addr; - } - if (mm->get_unmapped_area == arch_get_unmapped_area) -diff -urNp linux-3.0.4/arch/x86/mm/init_32.c linux-3.0.4/arch/x86/mm/init_32.c ---- linux-3.0.4/arch/x86/mm/init_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -74,36 +74,6 @@ static __init void *alloc_low_page(void) - } - - /* -- * Creates a middle page table and puts a pointer to it in the -- * given global directory entry. This only returns the gd entry -- * in non-PAE compilation mode, since the middle layer is folded. -- */ --static pmd_t * __init one_md_table_init(pgd_t *pgd) --{ -- pud_t *pud; -- pmd_t *pmd_table; -- --#ifdef CONFIG_X86_PAE -- if (!(pgd_val(*pgd) & _PAGE_PRESENT)) { -- if (after_bootmem) -- pmd_table = (pmd_t *)alloc_bootmem_pages(PAGE_SIZE); -- else -- pmd_table = (pmd_t *)alloc_low_page(); -- paravirt_alloc_pmd(&init_mm, __pa(pmd_table) >> PAGE_SHIFT); -- set_pgd(pgd, __pgd(__pa(pmd_table) | _PAGE_PRESENT)); -- pud = pud_offset(pgd, 0); -- BUG_ON(pmd_table != pmd_offset(pud, 0)); -- -- return pmd_table; -- } --#endif -- pud = pud_offset(pgd, 0); -- pmd_table = pmd_offset(pud, 0); -- -- return pmd_table; --} -- --/* - * Create a page table and place a pointer to it in a middle page - * directory entry: - */ -@@ -123,13 +93,28 @@ static pte_t * __init one_page_table_ini - page_table = (pte_t *)alloc_low_page(); - - paravirt_alloc_pte(&init_mm, __pa(page_table) >> PAGE_SHIFT); -+#if defined(CONFIG_PAX_PAGEEXEC) || defined(CONFIG_PAX_SEGMEXEC) -+ set_pmd(pmd, __pmd(__pa(page_table) | _KERNPG_TABLE)); -+#else - set_pmd(pmd, __pmd(__pa(page_table) | _PAGE_TABLE)); -+#endif - BUG_ON(page_table != pte_offset_kernel(pmd, 0)); - } - - return pte_offset_kernel(pmd, 0); - } - -+static pmd_t * __init one_md_table_init(pgd_t *pgd) -+{ -+ pud_t *pud; -+ pmd_t *pmd_table; -+ -+ pud = pud_offset(pgd, 0); -+ pmd_table = pmd_offset(pud, 0); -+ -+ return pmd_table; -+} -+ - pmd_t * __init populate_extra_pmd(unsigned long vaddr) - { - int pgd_idx = pgd_index(vaddr); -@@ -203,6 +188,7 @@ page_table_range_init(unsigned long star - int pgd_idx, pmd_idx; - unsigned long vaddr; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte = NULL; - -@@ -212,8 +198,13 @@ page_table_range_init(unsigned long star - pgd = pgd_base + pgd_idx; - - for ( ; (pgd_idx < PTRS_PER_PGD) && (vaddr != end); pgd++, pgd_idx++) { -- pmd = one_md_table_init(pgd); -- pmd = pmd + pmd_index(vaddr); -+ pud = pud_offset(pgd, vaddr); -+ pmd = pmd_offset(pud, vaddr); -+ -+#ifdef CONFIG_X86_PAE -+ paravirt_alloc_pmd(&init_mm, __pa(pmd) >> PAGE_SHIFT); -+#endif -+ - for (; (pmd_idx < PTRS_PER_PMD) && (vaddr != end); - pmd++, pmd_idx++) { - pte = page_table_kmap_check(one_page_table_init(pmd), -@@ -225,11 +216,20 @@ page_table_range_init(unsigned long star - } - } - --static inline int is_kernel_text(unsigned long addr) -+static inline int is_kernel_text(unsigned long start, unsigned long end) - { -- if (addr >= (unsigned long)_text && addr <= (unsigned long)__init_end) -- return 1; -- return 0; -+ if ((start > ktla_ktva((unsigned long)_etext) || -+ end <= ktla_ktva((unsigned long)_stext)) && -+ (start > ktla_ktva((unsigned long)_einittext) || -+ end <= ktla_ktva((unsigned long)_sinittext)) && -+ -+#ifdef CONFIG_ACPI_SLEEP -+ (start > (unsigned long)__va(acpi_wakeup_address) + 0x4000 || end <= (unsigned long)__va(acpi_wakeup_address)) && -+#endif -+ -+ (start > (unsigned long)__va(0xfffff) || end <= (unsigned long)__va(0xc0000))) -+ return 0; -+ return 1; - } - - /* -@@ -246,9 +246,10 @@ kernel_physical_mapping_init(unsigned lo - unsigned long last_map_addr = end; - unsigned long start_pfn, end_pfn; - pgd_t *pgd_base = swapper_pg_dir; -- int pgd_idx, pmd_idx, pte_ofs; -+ unsigned int pgd_idx, pmd_idx, pte_ofs; - unsigned long pfn; - pgd_t *pgd; -+ pud_t *pud; - pmd_t *pmd; - pte_t *pte; - unsigned pages_2m, pages_4k; -@@ -281,8 +282,13 @@ repeat: - pfn = start_pfn; - pgd_idx = pgd_index((pfn<> PAGE_SHIFT); -+#endif - - if (pfn >= end_pfn) - continue; -@@ -294,14 +300,13 @@ repeat: - #endif - for (; pmd_idx < PTRS_PER_PMD && pfn < end_pfn; - pmd++, pmd_idx++) { -- unsigned int addr = pfn * PAGE_SIZE + PAGE_OFFSET; -+ unsigned long address = pfn * PAGE_SIZE + PAGE_OFFSET; - - /* - * Map with big pages if possible, otherwise - * create normal page tables: - */ - if (use_pse) { -- unsigned int addr2; - pgprot_t prot = PAGE_KERNEL_LARGE; - /* - * first pass will use the same initial -@@ -311,11 +316,7 @@ repeat: - __pgprot(PTE_IDENT_ATTR | - _PAGE_PSE); - -- addr2 = (pfn + PTRS_PER_PTE-1) * PAGE_SIZE + -- PAGE_OFFSET + PAGE_SIZE-1; -- -- if (is_kernel_text(addr) || -- is_kernel_text(addr2)) -+ if (is_kernel_text(address, address + PMD_SIZE)) - prot = PAGE_KERNEL_LARGE_EXEC; - - pages_2m++; -@@ -332,7 +333,7 @@ repeat: - pte_ofs = pte_index((pfn<> 10, - -- (unsigned long)&_etext, (unsigned long)&_edata, -- ((unsigned long)&_edata - (unsigned long)&_etext) >> 10, -+ (unsigned long)&_sdata, (unsigned long)&_edata, -+ ((unsigned long)&_edata - (unsigned long)&_sdata) >> 10, - -- (unsigned long)&_text, (unsigned long)&_etext, -+ ktla_ktva((unsigned long)&_text), ktla_ktva((unsigned long)&_etext), - ((unsigned long)&_etext - (unsigned long)&_text) >> 10); - - /* -@@ -896,6 +901,7 @@ void set_kernel_text_rw(void) - if (!kernel_set_to_readonly) - return; - -+ start = ktla_ktva(start); - pr_debug("Set kernel text: %lx - %lx for read write\n", - start, start+size); - -@@ -910,6 +916,7 @@ void set_kernel_text_ro(void) - if (!kernel_set_to_readonly) - return; - -+ start = ktla_ktva(start); - pr_debug("Set kernel text: %lx - %lx for read only\n", - start, start+size); - -@@ -938,6 +945,7 @@ void mark_rodata_ro(void) - unsigned long start = PFN_ALIGN(_text); - unsigned long size = PFN_ALIGN(_etext) - start; - -+ start = ktla_ktva(start); - set_pages_ro(virt_to_page(start), size >> PAGE_SHIFT); - printk(KERN_INFO "Write protecting the kernel text: %luk\n", - size >> 10); -diff -urNp linux-3.0.4/arch/x86/mm/init_64.c linux-3.0.4/arch/x86/mm/init_64.c ---- linux-3.0.4/arch/x86/mm/init_64.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init_64.c 2011-08-23 21:47:55.000000000 -0400 -@@ -75,7 +75,7 @@ early_param("gbpages", parse_direct_gbpa - * around without checking the pgd every time. - */ - --pteval_t __supported_pte_mask __read_mostly = ~_PAGE_IOMAP; -+pteval_t __supported_pte_mask __read_only = ~(_PAGE_NX | _PAGE_IOMAP); - EXPORT_SYMBOL_GPL(__supported_pte_mask); - - int force_personality32; -@@ -108,12 +108,22 @@ void sync_global_pgds(unsigned long star - - for (address = start; address <= end; address += PGDIR_SIZE) { - const pgd_t *pgd_ref = pgd_offset_k(address); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - - if (pgd_none(*pgd_ref)) - continue; - - spin_lock(&pgd_lock); -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < NR_CPUS; ++cpu) { -+ pgd_t *pgd = pgd_offset_cpu(cpu, address); -+#else - list_for_each_entry(page, &pgd_list, lru) { - pgd_t *pgd; - spinlock_t *pgt_lock; -@@ -122,6 +132,7 @@ void sync_global_pgds(unsigned long star - /* the pgt_lock only for Xen */ - pgt_lock = &pgd_page_get_mm(page)->page_table_lock; - spin_lock(pgt_lock); -+#endif - - if (pgd_none(*pgd)) - set_pgd(pgd, *pgd_ref); -@@ -129,7 +140,10 @@ void sync_global_pgds(unsigned long star - BUG_ON(pgd_page_vaddr(*pgd) - != pgd_page_vaddr(*pgd_ref)); - -+#ifndef CONFIG_PAX_PER_CPU_PGD - spin_unlock(pgt_lock); -+#endif -+ - } - spin_unlock(&pgd_lock); - } -@@ -203,7 +217,9 @@ void set_pte_vaddr_pud(pud_t *pud_page, - pmd = fill_pmd(pud, vaddr); - pte = fill_pte(pmd, vaddr); - -+ pax_open_kernel(); - set_pte(pte, new_pte); -+ pax_close_kernel(); - - /* - * It's enough to flush this one mapping. -@@ -262,14 +278,12 @@ static void __init __init_extra_mapping( - pgd = pgd_offset_k((unsigned long)__va(phys)); - if (pgd_none(*pgd)) { - pud = (pud_t *) spp_getpage(); -- set_pgd(pgd, __pgd(__pa(pud) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pgd(pgd, __pgd(__pa(pud) | _PAGE_TABLE)); - } - pud = pud_offset(pgd, (unsigned long)__va(phys)); - if (pud_none(*pud)) { - pmd = (pmd_t *) spp_getpage(); -- set_pud(pud, __pud(__pa(pmd) | _KERNPG_TABLE | -- _PAGE_USER)); -+ set_pud(pud, __pud(__pa(pmd) | _PAGE_TABLE)); - } - pmd = pmd_offset(pud, phys); - BUG_ON(!pmd_none(*pmd)); -@@ -693,6 +707,12 @@ void __init mem_init(void) - - pci_iommu_alloc(); - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ clone_pgd_range(get_cpu_pgd(0) + KERNEL_PGD_BOUNDARY, -+ swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ KERNEL_PGD_PTRS); -+#endif -+ - /* clear_bss() already clear the empty_zero_page */ - - reservedpages = 0; -@@ -853,8 +873,8 @@ int kern_addr_valid(unsigned long addr) - static struct vm_area_struct gate_vma = { - .vm_start = VSYSCALL_START, - .vm_end = VSYSCALL_START + (VSYSCALL_MAPPED_PAGES * PAGE_SIZE), -- .vm_page_prot = PAGE_READONLY_EXEC, -- .vm_flags = VM_READ | VM_EXEC -+ .vm_page_prot = PAGE_READONLY, -+ .vm_flags = VM_READ - }; - - struct vm_area_struct *get_gate_vma(struct mm_struct *mm) -@@ -888,7 +908,7 @@ int in_gate_area_no_mm(unsigned long add - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; - if (vma == &gate_vma) - return "[vsyscall]"; -diff -urNp linux-3.0.4/arch/x86/mm/init.c linux-3.0.4/arch/x86/mm/init.c ---- linux-3.0.4/arch/x86/mm/init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/init.c 2011-08-23 21:48:14.000000000 -0400 -@@ -31,7 +31,7 @@ int direct_gbpages - static void __init find_early_table_space(unsigned long end, int use_pse, - int use_gbpages) - { -- unsigned long puds, pmds, ptes, tables, start = 0, good_end = end; -+ unsigned long puds, pmds, ptes, tables, start = 0x100000, good_end = end; - phys_addr_t base; - - puds = (end + PUD_SIZE - 1) >> PUD_SHIFT; -@@ -313,12 +313,34 @@ unsigned long __init_refok init_memory_m - */ - int devmem_is_allowed(unsigned long pagenr) - { -- if (pagenr <= 256) -+#ifdef CONFIG_GRKERNSEC_KMEM -+ /* allow BDA */ -+ if (!pagenr) -+ return 1; -+ /* allow EBDA */ -+ if ((0x9f000 >> PAGE_SHIFT) == pagenr) -+ return 1; -+#else -+ if (!pagenr) -+ return 1; -+#ifdef CONFIG_VM86 -+ if (pagenr < (ISA_START_ADDRESS >> PAGE_SHIFT)) -+ return 1; -+#endif -+#endif -+ -+ if ((ISA_START_ADDRESS >> PAGE_SHIFT) <= pagenr && pagenr < (ISA_END_ADDRESS >> PAGE_SHIFT)) - return 1; -+#ifdef CONFIG_GRKERNSEC_KMEM -+ /* throw out everything else below 1MB */ -+ if (pagenr <= 256) -+ return 0; -+#endif - if (iomem_is_exclusive(pagenr << PAGE_SHIFT)) - return 0; - if (!page_is_ram(pagenr)) - return 1; -+ - return 0; - } - -@@ -373,6 +395,86 @@ void free_init_pages(char *what, unsigne - - void free_initmem(void) - { -+ -+#ifdef CONFIG_PAX_KERNEXEC -+#ifdef CONFIG_X86_32 -+ /* PaX: limit KERNEL_CS to actual size */ -+ unsigned long addr, limit; -+ struct desc_struct d; -+ int cpu; -+ -+ limit = paravirt_enabled() ? ktva_ktla(0xffffffff) : (unsigned long)&_etext; -+ limit = (limit - 1UL) >> PAGE_SHIFT; -+ -+ memset(__LOAD_PHYSICAL_ADDR + PAGE_OFFSET, POISON_FREE_INITMEM, PAGE_SIZE); -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ pack_descriptor(&d, get_desc_base(&get_cpu_gdt_table(cpu)[GDT_ENTRY_KERNEL_CS]), limit, 0x9B, 0xC); -+ write_gdt_entry(get_cpu_gdt_table(cpu), GDT_ENTRY_KERNEL_CS, &d, DESCTYPE_S); -+ } -+ -+ /* PaX: make KERNEL_CS read-only */ -+ addr = PFN_ALIGN(ktla_ktva((unsigned long)&_text)); -+ if (!paravirt_enabled()) -+ set_memory_ro(addr, (PFN_ALIGN(_sdata) - addr) >> PAGE_SHIFT); -+/* -+ for (addr = ktla_ktva((unsigned long)&_text); addr < (unsigned long)&_sdata; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+*/ -+#ifdef CONFIG_X86_PAE -+ set_memory_nx(PFN_ALIGN(__init_begin), (PFN_ALIGN(__init_end) - PFN_ALIGN(__init_begin)) >> PAGE_SHIFT); -+/* -+ for (addr = (unsigned long)&__init_begin; addr < (unsigned long)&__init_end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+*/ -+#endif -+ -+#ifdef CONFIG_MODULES -+ set_memory_4k((unsigned long)MODULES_EXEC_VADDR, (MODULES_EXEC_END - MODULES_EXEC_VADDR) >> PAGE_SHIFT); -+#endif -+ -+#else -+ pgd_t *pgd; -+ pud_t *pud; -+ pmd_t *pmd; -+ unsigned long addr, end; -+ -+ /* PaX: make kernel code/rodata read-only, rest non-executable */ -+ for (addr = __START_KERNEL_map; addr < __START_KERNEL_map + KERNEL_IMAGE_SIZE; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if (!pmd_present(*pmd)) -+ continue; -+ if ((unsigned long)_text <= addr && addr < (unsigned long)_sdata) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ else -+ set_pmd(pmd, __pmd(pmd_val(*pmd) | (_PAGE_NX & __supported_pte_mask))); -+ } -+ -+ addr = (unsigned long)__va(__pa(__START_KERNEL_map)); -+ end = addr + KERNEL_IMAGE_SIZE; -+ for (; addr < end; addr += PMD_SIZE) { -+ pgd = pgd_offset_k(addr); -+ pud = pud_offset(pgd, addr); -+ pmd = pmd_offset(pud, addr); -+ if (!pmd_present(*pmd)) -+ continue; -+ if ((unsigned long)__va(__pa(_text)) <= addr && addr < (unsigned long)__va(__pa(_sdata))) -+ set_pmd(pmd, __pmd(pmd_val(*pmd) & ~_PAGE_RW)); -+ } -+#endif -+ -+ flush_tlb_all(); -+#endif -+ - free_init_pages("unused kernel memory", - (unsigned long)(&__init_begin), - (unsigned long)(&__init_end)); -diff -urNp linux-3.0.4/arch/x86/mm/iomap_32.c linux-3.0.4/arch/x86/mm/iomap_32.c ---- linux-3.0.4/arch/x86/mm/iomap_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/iomap_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -64,7 +64,11 @@ void *kmap_atomic_prot_pfn(unsigned long - type = kmap_atomic_idx_push(); - idx = type + KM_TYPE_NR * smp_processor_id(); - vaddr = __fix_to_virt(FIX_KMAP_BEGIN + idx); -+ -+ pax_open_kernel(); - set_pte(kmap_pte - idx, pfn_pte(pfn, prot)); -+ pax_close_kernel(); -+ - arch_flush_lazy_mmu_mode(); - - return (void *)vaddr; -diff -urNp linux-3.0.4/arch/x86/mm/ioremap.c linux-3.0.4/arch/x86/mm/ioremap.c ---- linux-3.0.4/arch/x86/mm/ioremap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/ioremap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -97,7 +97,7 @@ static void __iomem *__ioremap_caller(re - for (pfn = phys_addr >> PAGE_SHIFT; pfn <= last_pfn; pfn++) { - int is_ram = page_is_ram(pfn); - -- if (is_ram && pfn_valid(pfn) && !PageReserved(pfn_to_page(pfn))) -+ if (is_ram && pfn_valid(pfn) && (pfn >= 0x100 || !PageReserved(pfn_to_page(pfn)))) - return NULL; - WARN_ON_ONCE(is_ram); - } -@@ -344,7 +344,7 @@ static int __init early_ioremap_debug_se - early_param("early_ioremap_debug", early_ioremap_debug_setup); - - static __initdata int after_paging_init; --static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __page_aligned_bss; -+static pte_t bm_pte[PAGE_SIZE/sizeof(pte_t)] __read_only __aligned(PAGE_SIZE); - - static inline pmd_t * __init early_ioremap_pmd(unsigned long addr) - { -@@ -381,8 +381,7 @@ void __init early_ioremap_init(void) - slot_virt[i] = __fix_to_virt(FIX_BTMAP_BEGIN - NR_FIX_BTMAPS*i); - - pmd = early_ioremap_pmd(fix_to_virt(FIX_BTMAP_BEGIN)); -- memset(bm_pte, 0, sizeof(bm_pte)); -- pmd_populate_kernel(&init_mm, pmd, bm_pte); -+ pmd_populate_user(&init_mm, pmd, bm_pte); - - /* - * The boot-ioremap range spans multiple pmds, for which -diff -urNp linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c ---- linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/kmemcheck/kmemcheck.c 2011-08-23 21:47:55.000000000 -0400 -@@ -622,9 +622,9 @@ bool kmemcheck_fault(struct pt_regs *reg - * memory (e.g. tracked pages)? For now, we need this to avoid - * invoking kmemcheck for PnP BIOS calls. - */ -- if (regs->flags & X86_VM_MASK) -+ if (v8086_mode(regs)) - return false; -- if (regs->cs != __KERNEL_CS) -+ if (regs->cs != __KERNEL_CS && regs->cs != __KERNEXEC_KERNEL_CS) - return false; - - pte = kmemcheck_pte_lookup(address); -diff -urNp linux-3.0.4/arch/x86/mm/mmap.c linux-3.0.4/arch/x86/mm/mmap.c ---- linux-3.0.4/arch/x86/mm/mmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/mmap.c 2011-08-23 21:47:55.000000000 -0400 -@@ -49,7 +49,7 @@ static unsigned int stack_maxrandom_size - * Leave an at least ~128 MB hole with possible stack randomization. - */ - #define MIN_GAP (128*1024*1024UL + stack_maxrandom_size()) --#define MAX_GAP (TASK_SIZE/6*5) -+#define MAX_GAP (pax_task_size/6*5) - - /* - * True on X86_32 or when emulating IA32 on X86_64 -@@ -94,27 +94,40 @@ static unsigned long mmap_rnd(void) - return rnd << PAGE_SHIFT; - } - --static unsigned long mmap_base(void) -+static unsigned long mmap_base(struct mm_struct *mm) - { - unsigned long gap = rlimit(RLIMIT_STACK); -+ unsigned long pax_task_size = TASK_SIZE; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ pax_task_size = SEGMEXEC_TASK_SIZE; -+#endif - - if (gap < MIN_GAP) - gap = MIN_GAP; - else if (gap > MAX_GAP) - gap = MAX_GAP; - -- return PAGE_ALIGN(TASK_SIZE - gap - mmap_rnd()); -+ return PAGE_ALIGN(pax_task_size - gap - mmap_rnd()); - } - - /* - * Bottom-up (legacy) layout on X86_32 did not support randomization, X86_64 - * does, but not when emulating X86_32 - */ --static unsigned long mmap_legacy_base(void) -+static unsigned long mmap_legacy_base(struct mm_struct *mm) - { -- if (mmap_is_ia32()) -+ if (mmap_is_ia32()) { -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (mm->pax_flags & MF_PAX_SEGMEXEC) -+ return SEGMEXEC_TASK_UNMAPPED_BASE; -+ else -+#endif -+ - return TASK_UNMAPPED_BASE; -- else -+ } else - return TASK_UNMAPPED_BASE + mmap_rnd(); - } - -@@ -125,11 +138,23 @@ static unsigned long mmap_legacy_base(vo - void arch_pick_mmap_layout(struct mm_struct *mm) - { - if (mmap_is_legacy()) { -- mm->mmap_base = mmap_legacy_base(); -+ mm->mmap_base = mmap_legacy_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base += mm->delta_mmap; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area; - mm->unmap_area = arch_unmap_area; - } else { -- mm->mmap_base = mmap_base(); -+ mm->mmap_base = mmap_base(mm); -+ -+#ifdef CONFIG_PAX_RANDMMAP -+ if (mm->pax_flags & MF_PAX_RANDMMAP) -+ mm->mmap_base -= mm->delta_mmap + mm->delta_stack; -+#endif -+ - mm->get_unmapped_area = arch_get_unmapped_area_topdown; - mm->unmap_area = arch_unmap_area_topdown; - } -diff -urNp linux-3.0.4/arch/x86/mm/mmio-mod.c linux-3.0.4/arch/x86/mm/mmio-mod.c ---- linux-3.0.4/arch/x86/mm/mmio-mod.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/mmio-mod.c 2011-08-23 21:47:55.000000000 -0400 -@@ -195,7 +195,7 @@ static void pre(struct kmmio_probe *p, s - break; - default: - { -- unsigned char *ip = (unsigned char *)instptr; -+ unsigned char *ip = (unsigned char *)ktla_ktva(instptr); - my_trace->opcode = MMIO_UNKNOWN_OP; - my_trace->width = 0; - my_trace->value = (*ip) << 16 | *(ip + 1) << 8 | -@@ -235,7 +235,7 @@ static void post(struct kmmio_probe *p, - static void ioremap_trace_core(resource_size_t offset, unsigned long size, - void __iomem *addr) - { -- static atomic_t next_id; -+ static atomic_unchecked_t next_id; - struct remap_trace *trace = kmalloc(sizeof(*trace), GFP_KERNEL); - /* These are page-unaligned. */ - struct mmiotrace_map map = { -@@ -259,7 +259,7 @@ static void ioremap_trace_core(resource_ - .private = trace - }, - .phys = offset, -- .id = atomic_inc_return(&next_id) -+ .id = atomic_inc_return_unchecked(&next_id) - }; - map.map_id = trace->id; - -diff -urNp linux-3.0.4/arch/x86/mm/pageattr.c linux-3.0.4/arch/x86/mm/pageattr.c ---- linux-3.0.4/arch/x86/mm/pageattr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pageattr.c 2011-08-23 21:47:55.000000000 -0400 -@@ -261,7 +261,7 @@ static inline pgprot_t static_protection - */ - #ifdef CONFIG_PCI_BIOS - if (pcibios_enabled && within(pfn, BIOS_BEGIN >> PAGE_SHIFT, BIOS_END >> PAGE_SHIFT)) -- pgprot_val(forbidden) |= _PAGE_NX; -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; - #endif - - /* -@@ -269,9 +269,10 @@ static inline pgprot_t static_protection - * Does not cover __inittext since that is gone later on. On - * 64bit we do not enforce !NX on the low mapping - */ -- if (within(address, (unsigned long)_text, (unsigned long)_etext)) -- pgprot_val(forbidden) |= _PAGE_NX; -+ if (within(address, ktla_ktva((unsigned long)_text), ktla_ktva((unsigned long)_etext))) -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; - -+#ifdef CONFIG_DEBUG_RODATA - /* - * The .rodata section needs to be read-only. Using the pfn - * catches all aliases. -@@ -279,6 +280,7 @@ static inline pgprot_t static_protection - if (within(pfn, __pa((unsigned long)__start_rodata) >> PAGE_SHIFT, - __pa((unsigned long)__end_rodata) >> PAGE_SHIFT)) - pgprot_val(forbidden) |= _PAGE_RW; -+#endif - - #if defined(CONFIG_X86_64) && defined(CONFIG_DEBUG_RODATA) - /* -@@ -317,6 +319,13 @@ static inline pgprot_t static_protection - } - #endif - -+#ifdef CONFIG_PAX_KERNEXEC -+ if (within(pfn, __pa((unsigned long)&_text), __pa((unsigned long)&_sdata))) { -+ pgprot_val(forbidden) |= _PAGE_RW; -+ pgprot_val(forbidden) |= _PAGE_NX & __supported_pte_mask; -+ } -+#endif -+ - prot = __pgprot(pgprot_val(prot) & ~pgprot_val(forbidden)); - - return prot; -@@ -369,23 +378,37 @@ EXPORT_SYMBOL_GPL(lookup_address); - static void __set_pmd_pte(pte_t *kpte, unsigned long address, pte_t pte) - { - /* change init_mm */ -+ pax_open_kernel(); - set_pte_atomic(kpte, pte); -+ - #ifdef CONFIG_X86_32 - if (!SHARED_KERNEL_PMD) { -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ unsigned long cpu; -+#else - struct page *page; -+#endif - -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ for (cpu = 0; cpu < NR_CPUS; ++cpu) { -+ pgd_t *pgd = get_cpu_pgd(cpu); -+#else - list_for_each_entry(page, &pgd_list, lru) { -- pgd_t *pgd; -+ pgd_t *pgd = (pgd_t *)page_address(page); -+#endif -+ - pud_t *pud; - pmd_t *pmd; - -- pgd = (pgd_t *)page_address(page) + pgd_index(address); -+ pgd += pgd_index(address); - pud = pud_offset(pgd, address); - pmd = pmd_offset(pud, address); - set_pte_atomic((pte_t *)pmd, pte); - } - } - #endif -+ pax_close_kernel(); - } - - static int -diff -urNp linux-3.0.4/arch/x86/mm/pageattr-test.c linux-3.0.4/arch/x86/mm/pageattr-test.c ---- linux-3.0.4/arch/x86/mm/pageattr-test.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pageattr-test.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ enum { - - static int pte_testbit(pte_t pte) - { -- return pte_flags(pte) & _PAGE_UNUSED1; -+ return pte_flags(pte) & _PAGE_CPA_TEST; - } - - struct split_state { -diff -urNp linux-3.0.4/arch/x86/mm/pat.c linux-3.0.4/arch/x86/mm/pat.c ---- linux-3.0.4/arch/x86/mm/pat.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pat.c 2011-08-23 21:47:55.000000000 -0400 -@@ -361,7 +361,7 @@ int free_memtype(u64 start, u64 end) - - if (!entry) { - printk(KERN_INFO "%s:%d freeing invalid memtype %Lx-%Lx\n", -- current->comm, current->pid, start, end); -+ current->comm, task_pid_nr(current), start, end); - return -EINVAL; - } - -@@ -492,8 +492,8 @@ static inline int range_is_allowed(unsig - while (cursor < to) { - if (!devmem_is_allowed(pfn)) { - printk(KERN_INFO -- "Program %s tried to access /dev/mem between %Lx->%Lx.\n", -- current->comm, from, to); -+ "Program %s tried to access /dev/mem between %Lx->%Lx (%Lx).\n", -+ current->comm, from, to, cursor); - return 0; - } - cursor += PAGE_SIZE; -@@ -557,7 +557,7 @@ int kernel_map_sync_memtype(u64 base, un - printk(KERN_INFO - "%s:%d ioremap_change_attr failed %s " - "for %Lx-%Lx\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(flags), - base, (unsigned long long)(base + size)); - return -EINVAL; -@@ -593,7 +593,7 @@ static int reserve_pfn_range(u64 paddr, - if (want_flags != flags) { - printk(KERN_WARNING - "%s:%d map pfn RAM range req %s for %Lx-%Lx, got %s\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(want_flags), - (unsigned long long)paddr, - (unsigned long long)(paddr + size), -@@ -615,7 +615,7 @@ static int reserve_pfn_range(u64 paddr, - free_memtype(paddr, paddr + size); - printk(KERN_ERR "%s:%d map pfn expected mapping type %s" - " for %Lx-%Lx, got %s\n", -- current->comm, current->pid, -+ current->comm, task_pid_nr(current), - cattr_name(want_flags), - (unsigned long long)paddr, - (unsigned long long)(paddr + size), -diff -urNp linux-3.0.4/arch/x86/mm/pf_in.c linux-3.0.4/arch/x86/mm/pf_in.c ---- linux-3.0.4/arch/x86/mm/pf_in.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pf_in.c 2011-08-23 21:47:55.000000000 -0400 -@@ -148,7 +148,7 @@ enum reason_type get_ins_type(unsigned l - int i; - enum reason_type rv = OTHERS; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -168,7 +168,7 @@ static unsigned int get_ins_reg_width(un - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -191,7 +191,7 @@ unsigned int get_ins_mem_width(unsigned - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - -@@ -415,7 +415,7 @@ unsigned long get_ins_reg_val(unsigned l - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - for (i = 0; i < ARRAY_SIZE(reg_rop); i++) -@@ -470,7 +470,7 @@ unsigned long get_ins_imm_val(unsigned l - struct prefix_bits prf; - int i; - -- p = (unsigned char *)ins_addr; -+ p = (unsigned char *)ktla_ktva(ins_addr); - p += skip_prefix(p, &prf); - p += get_opcode(p, &opcode); - for (i = 0; i < ARRAY_SIZE(imm_wop); i++) -diff -urNp linux-3.0.4/arch/x86/mm/pgtable_32.c linux-3.0.4/arch/x86/mm/pgtable_32.c ---- linux-3.0.4/arch/x86/mm/pgtable_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pgtable_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,10 +48,13 @@ void set_pte_vaddr(unsigned long vaddr, - return; - } - pte = pte_offset_kernel(pmd, vaddr); -+ -+ pax_open_kernel(); - if (pte_val(pteval)) - set_pte_at(&init_mm, vaddr, pte, pteval); - else - pte_clear(&init_mm, vaddr, pte); -+ pax_close_kernel(); - - /* - * It's enough to flush this one mapping. -diff -urNp linux-3.0.4/arch/x86/mm/pgtable.c linux-3.0.4/arch/x86/mm/pgtable.c ---- linux-3.0.4/arch/x86/mm/pgtable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/pgtable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -84,10 +84,52 @@ static inline void pgd_list_del(pgd_t *p - list_del(&page->lru); - } - --#define UNSHARED_PTRS_PER_PGD \ -- (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+pgdval_t clone_pgd_mask __read_only = ~_PAGE_PRESENT; - -+void __shadow_user_pgds(pgd_t *dst, const pgd_t *src, int count) -+{ -+ while (count--) -+ *dst++ = __pgd((pgd_val(*src++) | (_PAGE_NX & __supported_pte_mask)) & ~_PAGE_USER); -+} -+#endif -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+void __clone_user_pgds(pgd_t *dst, const pgd_t *src, int count) -+{ -+ while (count--) -+ -+#if defined(CONFIG_X86_64) && defined(CONFIG_PAX_MEMORY_UDEREF) -+ *dst++ = __pgd(pgd_val(*src++) & clone_pgd_mask); -+#else -+ *dst++ = *src++; -+#endif - -+} -+#endif -+ -+#ifdef CONFIG_X86_64 -+#define pxd_t pud_t -+#define pyd_t pgd_t -+#define paravirt_release_pxd(pfn) paravirt_release_pud(pfn) -+#define pxd_free(mm, pud) pud_free((mm), (pud)) -+#define pyd_populate(mm, pgd, pud) pgd_populate((mm), (pgd), (pud)) -+#define pyd_offset(mm ,address) pgd_offset((mm), (address)) -+#define PYD_SIZE PGDIR_SIZE -+#else -+#define pxd_t pmd_t -+#define pyd_t pud_t -+#define paravirt_release_pxd(pfn) paravirt_release_pmd(pfn) -+#define pxd_free(mm, pud) pmd_free((mm), (pud)) -+#define pyd_populate(mm, pgd, pud) pud_populate((mm), (pgd), (pud)) -+#define pyd_offset(mm ,address) pud_offset((mm), (address)) -+#define PYD_SIZE PUD_SIZE -+#endif -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+static inline void pgd_ctor(struct mm_struct *mm, pgd_t *pgd) {} -+static inline void pgd_dtor(pgd_t *pgd) {} -+#else - static void pgd_set_mm(pgd_t *pgd, struct mm_struct *mm) - { - BUILD_BUG_ON(sizeof(virt_to_page(pgd)->index) < sizeof(mm)); -@@ -128,6 +170,7 @@ static void pgd_dtor(pgd_t *pgd) - pgd_list_del(pgd); - spin_unlock(&pgd_lock); - } -+#endif - - /* - * List of all pgd's needed for non-PAE so it can invalidate entries -@@ -140,7 +183,7 @@ static void pgd_dtor(pgd_t *pgd) - * -- wli - */ - --#ifdef CONFIG_X86_PAE -+#if defined(CONFIG_X86_32) && defined(CONFIG_X86_PAE) - /* - * In PAE mode, we need to do a cr3 reload (=tlb flush) when - * updating the top-level pagetable entries to guarantee the -@@ -152,7 +195,7 @@ static void pgd_dtor(pgd_t *pgd) - * not shared between pagetables (!SHARED_KERNEL_PMDS), we allocate - * and initialize the kernel pmds here. - */ --#define PREALLOCATED_PMDS UNSHARED_PTRS_PER_PGD -+#define PREALLOCATED_PXDS (SHARED_KERNEL_PMD ? KERNEL_PGD_BOUNDARY : PTRS_PER_PGD) - - void pud_populate(struct mm_struct *mm, pud_t *pudp, pmd_t *pmd) - { -@@ -170,36 +213,38 @@ void pud_populate(struct mm_struct *mm, - */ - flush_tlb_mm(mm); - } -+#elif defined(CONFIG_X86_64) && defined(CONFIG_PAX_PER_CPU_PGD) -+#define PREALLOCATED_PXDS USER_PGD_PTRS - #else /* !CONFIG_X86_PAE */ - - /* No need to prepopulate any pagetable entries in non-PAE modes. */ --#define PREALLOCATED_PMDS 0 -+#define PREALLOCATED_PXDS 0 - - #endif /* CONFIG_X86_PAE */ - --static void free_pmds(pmd_t *pmds[]) -+static void free_pxds(pxd_t *pxds[]) - { - int i; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) -- if (pmds[i]) -- free_page((unsigned long)pmds[i]); -+ for(i = 0; i < PREALLOCATED_PXDS; i++) -+ if (pxds[i]) -+ free_page((unsigned long)pxds[i]); - } - --static int preallocate_pmds(pmd_t *pmds[]) -+static int preallocate_pxds(pxd_t *pxds[]) - { - int i; - bool failed = false; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) { -- pmd_t *pmd = (pmd_t *)__get_free_page(PGALLOC_GFP); -- if (pmd == NULL) -+ for(i = 0; i < PREALLOCATED_PXDS; i++) { -+ pxd_t *pxd = (pxd_t *)__get_free_page(PGALLOC_GFP); -+ if (pxd == NULL) - failed = true; -- pmds[i] = pmd; -+ pxds[i] = pxd; - } - - if (failed) { -- free_pmds(pmds); -+ free_pxds(pxds); - return -ENOMEM; - } - -@@ -212,51 +257,55 @@ static int preallocate_pmds(pmd_t *pmds[ - * preallocate which never got a corresponding vma will need to be - * freed manually. - */ --static void pgd_mop_up_pmds(struct mm_struct *mm, pgd_t *pgdp) -+static void pgd_mop_up_pxds(struct mm_struct *mm, pgd_t *pgdp) - { - int i; - -- for(i = 0; i < PREALLOCATED_PMDS; i++) { -+ for(i = 0; i < PREALLOCATED_PXDS; i++) { - pgd_t pgd = pgdp[i]; - - if (pgd_val(pgd) != 0) { -- pmd_t *pmd = (pmd_t *)pgd_page_vaddr(pgd); -+ pxd_t *pxd = (pxd_t *)pgd_page_vaddr(pgd); - -- pgdp[i] = native_make_pgd(0); -+ set_pgd(pgdp + i, native_make_pgd(0)); - -- paravirt_release_pmd(pgd_val(pgd) >> PAGE_SHIFT); -- pmd_free(mm, pmd); -+ paravirt_release_pxd(pgd_val(pgd) >> PAGE_SHIFT); -+ pxd_free(mm, pxd); - } - } - } - --static void pgd_prepopulate_pmd(struct mm_struct *mm, pgd_t *pgd, pmd_t *pmds[]) -+static void pgd_prepopulate_pxd(struct mm_struct *mm, pgd_t *pgd, pxd_t *pxds[]) - { -- pud_t *pud; -+ pyd_t *pyd; - unsigned long addr; - int i; - -- if (PREALLOCATED_PMDS == 0) /* Work around gcc-3.4.x bug */ -+ if (PREALLOCATED_PXDS == 0) /* Work around gcc-3.4.x bug */ - return; - -- pud = pud_offset(pgd, 0); -+#ifdef CONFIG_X86_64 -+ pyd = pyd_offset(mm, 0L); -+#else -+ pyd = pyd_offset(pgd, 0L); -+#endif - -- for (addr = i = 0; i < PREALLOCATED_PMDS; -- i++, pud++, addr += PUD_SIZE) { -- pmd_t *pmd = pmds[i]; -+ for (addr = i = 0; i < PREALLOCATED_PXDS; -+ i++, pyd++, addr += PYD_SIZE) { -+ pxd_t *pxd = pxds[i]; - - if (i >= KERNEL_PGD_BOUNDARY) -- memcpy(pmd, (pmd_t *)pgd_page_vaddr(swapper_pg_dir[i]), -- sizeof(pmd_t) * PTRS_PER_PMD); -+ memcpy(pxd, (pxd_t *)pgd_page_vaddr(swapper_pg_dir[i]), -+ sizeof(pxd_t) * PTRS_PER_PMD); - -- pud_populate(mm, pud, pmd); -+ pyd_populate(mm, pyd, pxd); - } - } - - pgd_t *pgd_alloc(struct mm_struct *mm) - { - pgd_t *pgd; -- pmd_t *pmds[PREALLOCATED_PMDS]; -+ pxd_t *pxds[PREALLOCATED_PXDS]; - - pgd = (pgd_t *)__get_free_page(PGALLOC_GFP); - -@@ -265,11 +314,11 @@ pgd_t *pgd_alloc(struct mm_struct *mm) - - mm->pgd = pgd; - -- if (preallocate_pmds(pmds) != 0) -+ if (preallocate_pxds(pxds) != 0) - goto out_free_pgd; - - if (paravirt_pgd_alloc(mm) != 0) -- goto out_free_pmds; -+ goto out_free_pxds; - - /* - * Make sure that pre-populating the pmds is atomic with -@@ -279,14 +328,14 @@ pgd_t *pgd_alloc(struct mm_struct *mm) - spin_lock(&pgd_lock); - - pgd_ctor(mm, pgd); -- pgd_prepopulate_pmd(mm, pgd, pmds); -+ pgd_prepopulate_pxd(mm, pgd, pxds); - - spin_unlock(&pgd_lock); - - return pgd; - --out_free_pmds: -- free_pmds(pmds); -+out_free_pxds: -+ free_pxds(pxds); - out_free_pgd: - free_page((unsigned long)pgd); - out: -@@ -295,7 +344,7 @@ out: - - void pgd_free(struct mm_struct *mm, pgd_t *pgd) - { -- pgd_mop_up_pmds(mm, pgd); -+ pgd_mop_up_pxds(mm, pgd); - pgd_dtor(pgd); - paravirt_pgd_free(mm, pgd); - free_page((unsigned long)pgd); -diff -urNp linux-3.0.4/arch/x86/mm/setup_nx.c linux-3.0.4/arch/x86/mm/setup_nx.c ---- linux-3.0.4/arch/x86/mm/setup_nx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/setup_nx.c 2011-08-23 21:47:55.000000000 -0400 -@@ -5,8 +5,10 @@ - #include - #include - -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - static int disable_nx __cpuinitdata; - -+#ifndef CONFIG_PAX_PAGEEXEC - /* - * noexec = on|off - * -@@ -28,12 +30,17 @@ static int __init noexec_setup(char *str - return 0; - } - early_param("noexec", noexec_setup); -+#endif -+ -+#endif - - void __cpuinit x86_configure_nx(void) - { -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) - if (cpu_has_nx && !disable_nx) - __supported_pte_mask |= _PAGE_NX; - else -+#endif - __supported_pte_mask &= ~_PAGE_NX; - } - -diff -urNp linux-3.0.4/arch/x86/mm/tlb.c linux-3.0.4/arch/x86/mm/tlb.c ---- linux-3.0.4/arch/x86/mm/tlb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/mm/tlb.c 2011-08-23 21:47:55.000000000 -0400 -@@ -65,7 +65,11 @@ void leave_mm(int cpu) - BUG(); - cpumask_clear_cpu(cpu, - mm_cpumask(percpu_read(cpu_tlbstate.active_mm))); -+ -+#ifndef CONFIG_PAX_PER_CPU_PGD - load_cr3(swapper_pg_dir); -+#endif -+ - } - EXPORT_SYMBOL_GPL(leave_mm); - -diff -urNp linux-3.0.4/arch/x86/net/bpf_jit_comp.c linux-3.0.4/arch/x86/net/bpf_jit_comp.c ---- linux-3.0.4/arch/x86/net/bpf_jit_comp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/net/bpf_jit_comp.c 2011-08-23 21:47:55.000000000 -0400 -@@ -589,7 +589,9 @@ cond_branch: f_offset = addrs[i + filt - module_free(NULL, image); - return; - } -+ pax_open_kernel(); - memcpy(image + proglen, temp, ilen); -+ pax_close_kernel(); - } - proglen += ilen; - addrs[i] = proglen; -@@ -609,7 +611,7 @@ cond_branch: f_offset = addrs[i + filt - break; - } - if (proglen == oldproglen) { -- image = module_alloc(max_t(unsigned int, -+ image = module_alloc_exec(max_t(unsigned int, - proglen, - sizeof(struct work_struct))); - if (!image) -diff -urNp linux-3.0.4/arch/x86/oprofile/backtrace.c linux-3.0.4/arch/x86/oprofile/backtrace.c ---- linux-3.0.4/arch/x86/oprofile/backtrace.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/arch/x86/oprofile/backtrace.c 2011-08-23 21:47:55.000000000 -0400 -@@ -148,7 +148,7 @@ x86_backtrace(struct pt_regs * const reg - { - struct stack_frame *head = (struct stack_frame *)frame_pointer(regs); - -- if (!user_mode_vm(regs)) { -+ if (!user_mode(regs)) { - unsigned long stack = kernel_stack_pointer(regs); - if (depth) - dump_trace(NULL, regs, (unsigned long *)stack, 0, -diff -urNp linux-3.0.4/arch/x86/pci/mrst.c linux-3.0.4/arch/x86/pci/mrst.c ---- linux-3.0.4/arch/x86/pci/mrst.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/pci/mrst.c 2011-08-23 21:47:55.000000000 -0400 -@@ -234,7 +234,9 @@ int __init pci_mrst_init(void) - printk(KERN_INFO "Moorestown platform detected, using MRST PCI ops\n"); - pci_mmcfg_late_init(); - pcibios_enable_irq = mrst_pci_irq_enable; -- pci_root_ops = pci_mrst_ops; -+ pax_open_kernel(); -+ memcpy((void *)&pci_root_ops, &pci_mrst_ops, sizeof(pci_mrst_ops)); -+ pax_close_kernel(); - /* Continue with standard init */ - return 1; - } -diff -urNp linux-3.0.4/arch/x86/pci/pcbios.c linux-3.0.4/arch/x86/pci/pcbios.c ---- linux-3.0.4/arch/x86/pci/pcbios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/pci/pcbios.c 2011-08-23 21:47:55.000000000 -0400 -@@ -79,50 +79,93 @@ union bios32 { - static struct { - unsigned long address; - unsigned short segment; --} bios32_indirect = { 0, __KERNEL_CS }; -+} bios32_indirect __read_only = { 0, __PCIBIOS_CS }; - - /* - * Returns the entry point for the given service, NULL on error - */ - --static unsigned long bios32_service(unsigned long service) -+static unsigned long __devinit bios32_service(unsigned long service) - { - unsigned char return_code; /* %al */ - unsigned long address; /* %ebx */ - unsigned long length; /* %ecx */ - unsigned long entry; /* %edx */ - unsigned long flags; -+ struct desc_struct d, *gdt; - - local_irq_save(flags); -- __asm__("lcall *(%%edi); cld" -+ -+ gdt = get_cpu_gdt_table(smp_processor_id()); -+ -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x9B, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, 0UL, 0xFFFFFUL, 0x93, 0xC); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ -+ __asm__("movw %w7, %%ds; lcall *(%%edi); push %%ss; pop %%ds; cld" - : "=a" (return_code), - "=b" (address), - "=c" (length), - "=d" (entry) - : "0" (service), - "1" (0), -- "D" (&bios32_indirect)); -+ "D" (&bios32_indirect), -+ "r"(__PCIBIOS_DS) -+ : "memory"); -+ -+ pax_open_kernel(); -+ gdt[GDT_ENTRY_PCIBIOS_CS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_CS].b = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].a = 0; -+ gdt[GDT_ENTRY_PCIBIOS_DS].b = 0; -+ pax_close_kernel(); -+ - local_irq_restore(flags); - - switch (return_code) { -- case 0: -- return address + entry; -- case 0x80: /* Not present */ -- printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -- return 0; -- default: /* Shouldn't happen */ -- printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -- service, return_code); -+ case 0: { -+ int cpu; -+ unsigned char flags; -+ -+ printk(KERN_INFO "bios32_service: base:%08lx length:%08lx entry:%08lx\n", address, length, entry); -+ if (address >= 0xFFFF0 || length > 0x100000 - address || length <= entry) { -+ printk(KERN_WARNING "bios32_service: not valid\n"); - return 0; -+ } -+ address = address + PAGE_OFFSET; -+ length += 16UL; /* some BIOSs underreport this... */ -+ flags = 4; -+ if (length >= 64*1024*1024) { -+ length >>= PAGE_SHIFT; -+ flags |= 8; -+ } -+ -+ for (cpu = 0; cpu < NR_CPUS; cpu++) { -+ gdt = get_cpu_gdt_table(cpu); -+ pack_descriptor(&d, address, length, 0x9b, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_CS, &d, DESCTYPE_S); -+ pack_descriptor(&d, address, length, 0x93, flags); -+ write_gdt_entry(gdt, GDT_ENTRY_PCIBIOS_DS, &d, DESCTYPE_S); -+ } -+ return entry; -+ } -+ case 0x80: /* Not present */ -+ printk(KERN_WARNING "bios32_service(0x%lx): not present\n", service); -+ return 0; -+ default: /* Shouldn't happen */ -+ printk(KERN_WARNING "bios32_service(0x%lx): returned 0x%x -- BIOS bug!\n", -+ service, return_code); -+ return 0; - } - } - - static struct { - unsigned long address; - unsigned short segment; --} pci_indirect = { 0, __KERNEL_CS }; -+} pci_indirect __read_only = { 0, __PCIBIOS_CS }; - --static int pci_bios_present; -+static int pci_bios_present __read_only; - - static int __devinit check_pcibios(void) - { -@@ -131,11 +174,13 @@ static int __devinit check_pcibios(void) - unsigned long flags, pcibios_entry; - - if ((pcibios_entry = bios32_service(PCI_SERVICE))) { -- pci_indirect.address = pcibios_entry + PAGE_OFFSET; -+ pci_indirect.address = pcibios_entry; - - local_irq_save(flags); -- __asm__( -- "lcall *(%%edi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%edi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -144,7 +189,8 @@ static int __devinit check_pcibios(void) - "=b" (ebx), - "=c" (ecx) - : "1" (PCIBIOS_PCI_BIOS_PRESENT), -- "D" (&pci_indirect) -+ "D" (&pci_indirect), -+ "r" (__PCIBIOS_DS) - : "memory"); - local_irq_restore(flags); - -@@ -188,7 +234,10 @@ static int pci_bios_read(unsigned int se - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -197,7 +246,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_BYTE), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 8 bits, do not trust the - * BIOS having done it: -@@ -205,7 +255,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xff; - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -214,7 +267,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_WORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - /* - * Zero-extend the result beyond 16 bits, do not trust the - * BIOS having done it: -@@ -222,7 +276,10 @@ static int pci_bios_read(unsigned int se - *value &= 0xffff; - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -231,7 +288,8 @@ static int pci_bios_read(unsigned int se - : "1" (PCIBIOS_READ_CONFIG_DWORD), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -254,7 +312,10 @@ static int pci_bios_write(unsigned int s - - switch (len) { - case 1: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -263,10 +324,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 2: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -275,10 +340,14 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - case 4: -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w6, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n\t" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -287,7 +356,8 @@ static int pci_bios_write(unsigned int s - "c" (value), - "b" (bx), - "D" ((long)reg), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - break; - } - -@@ -392,10 +462,13 @@ struct irq_routing_table * pcibios_get_i - - DBG("PCI: Fetching IRQ routing table... "); - __asm__("push %%es\n\t" -+ "movw %w8, %%ds\n\t" - "push %%ds\n\t" - "pop %%es\n\t" -- "lcall *(%%esi); cld\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" - "pop %%es\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -406,7 +479,8 @@ struct irq_routing_table * pcibios_get_i - "1" (0), - "D" ((long) &opt), - "S" (&pci_indirect), -- "m" (opt) -+ "m" (opt), -+ "r" (__PCIBIOS_DS) - : "memory"); - DBG("OK ret=%d, size=%d, map=%x\n", ret, opt.size, map); - if (ret & 0xff00) -@@ -430,7 +504,10 @@ int pcibios_set_irq_routing(struct pci_d - { - int ret; - -- __asm__("lcall *(%%esi); cld\n\t" -+ __asm__("movw %w5, %%ds\n\t" -+ "lcall *%%ss:(%%esi); cld\n\t" -+ "push %%ss\n\t" -+ "pop %%ds\n" - "jc 1f\n\t" - "xor %%ah, %%ah\n" - "1:" -@@ -438,7 +515,8 @@ int pcibios_set_irq_routing(struct pci_d - : "0" (PCIBIOS_SET_PCI_HW_INT), - "b" ((dev->bus->number << 8) | dev->devfn), - "c" ((irq << 8) | (pin + 10)), -- "S" (&pci_indirect)); -+ "S" (&pci_indirect), -+ "r" (__PCIBIOS_DS)); - return !(ret & 0xff00); - } - EXPORT_SYMBOL(pcibios_set_irq_routing); -diff -urNp linux-3.0.4/arch/x86/platform/efi/efi_32.c linux-3.0.4/arch/x86/platform/efi/efi_32.c ---- linux-3.0.4/arch/x86/platform/efi/efi_32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/efi/efi_32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -38,70 +38,37 @@ - */ - - static unsigned long efi_rt_eflags; --static pgd_t efi_bak_pg_dir_pointer[2]; -+static pgd_t __initdata efi_bak_pg_dir_pointer[KERNEL_PGD_PTRS]; - --void efi_call_phys_prelog(void) -+void __init efi_call_phys_prelog(void) - { -- unsigned long cr4; -- unsigned long temp; - struct desc_ptr gdt_descr; - - local_irq_save(efi_rt_eflags); - -- /* -- * If I don't have PAE, I should just duplicate two entries in page -- * directory. If I have PAE, I just need to duplicate one entry in -- * page directory. -- */ -- cr4 = read_cr4_safe(); -- -- if (cr4 & X86_CR4_PAE) { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- swapper_pg_dir[0].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- } else { -- efi_bak_pg_dir_pointer[0].pgd = -- swapper_pg_dir[pgd_index(0)].pgd; -- efi_bak_pg_dir_pointer[1].pgd = -- swapper_pg_dir[pgd_index(0x400000)].pgd; -- swapper_pg_dir[pgd_index(0)].pgd = -- swapper_pg_dir[pgd_index(PAGE_OFFSET)].pgd; -- temp = PAGE_OFFSET + 0x400000; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- swapper_pg_dir[pgd_index(temp)].pgd; -- } -+ clone_pgd_range(efi_bak_pg_dir_pointer, swapper_pg_dir, KERNEL_PGD_PTRS); -+ clone_pgd_range(swapper_pg_dir, swapper_pg_dir + KERNEL_PGD_BOUNDARY, -+ min_t(unsigned long, KERNEL_PGD_PTRS, KERNEL_PGD_BOUNDARY)); - - /* - * After the lock is released, the original page table is restored. - */ - __flush_tlb_all(); - -- gdt_descr.address = __pa(get_cpu_gdt_table(0)); -+ gdt_descr.address = (struct desc_struct *)__pa(get_cpu_gdt_table(0)); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - } - --void efi_call_phys_epilog(void) -+void __init efi_call_phys_epilog(void) - { -- unsigned long cr4; - struct desc_ptr gdt_descr; - -- gdt_descr.address = (unsigned long)get_cpu_gdt_table(0); -+ gdt_descr.address = get_cpu_gdt_table(0); - gdt_descr.size = GDT_SIZE - 1; - load_gdt(&gdt_descr); - -- cr4 = read_cr4_safe(); -- -- if (cr4 & X86_CR4_PAE) { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- } else { -- swapper_pg_dir[pgd_index(0)].pgd = -- efi_bak_pg_dir_pointer[0].pgd; -- swapper_pg_dir[pgd_index(0x400000)].pgd = -- efi_bak_pg_dir_pointer[1].pgd; -- } -+ clone_pgd_range(swapper_pg_dir, efi_bak_pg_dir_pointer, KERNEL_PGD_PTRS); - - /* - * After the lock is released, the original page table is restored. -diff -urNp linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S ---- linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/efi/efi_stub_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -6,6 +6,7 @@ - */ - - #include -+#include - #include - - /* -@@ -20,7 +21,7 @@ - * service functions will comply with gcc calling convention, too. - */ - --.text -+__INIT - ENTRY(efi_call_phys) - /* - * 0. The function can only be called in Linux kernel. So CS has been -@@ -36,9 +37,7 @@ ENTRY(efi_call_phys) - * The mapping of lower virtual memory has been created in prelog and - * epilog. - */ -- movl $1f, %edx -- subl $__PAGE_OFFSET, %edx -- jmp *%edx -+ jmp 1f-__PAGE_OFFSET - 1: - - /* -@@ -47,14 +46,8 @@ ENTRY(efi_call_phys) - * parameter 2, ..., param n. To make things easy, we save the return - * address of efi_call_phys in a global variable. - */ -- popl %edx -- movl %edx, saved_return_addr -- /* get the function pointer into ECX*/ -- popl %ecx -- movl %ecx, efi_rt_function_ptr -- movl $2f, %edx -- subl $__PAGE_OFFSET, %edx -- pushl %edx -+ popl (saved_return_addr) -+ popl (efi_rt_function_ptr) - - /* - * 3. Clear PG bit in %CR0. -@@ -73,9 +66,8 @@ ENTRY(efi_call_phys) - /* - * 5. Call the physical function. - */ -- jmp *%ecx -+ call *(efi_rt_function_ptr-__PAGE_OFFSET) - --2: - /* - * 6. After EFI runtime service returns, control will return to - * following instruction. We'd better readjust stack pointer first. -@@ -88,35 +80,28 @@ ENTRY(efi_call_phys) - movl %cr0, %edx - orl $0x80000000, %edx - movl %edx, %cr0 -- jmp 1f --1: -+ - /* - * 8. Now restore the virtual mode from flat mode by - * adding EIP with PAGE_OFFSET. - */ -- movl $1f, %edx -- jmp *%edx -+ jmp 1f+__PAGE_OFFSET - 1: - - /* - * 9. Balance the stack. And because EAX contain the return value, - * we'd better not clobber it. - */ -- leal efi_rt_function_ptr, %edx -- movl (%edx), %ecx -- pushl %ecx -+ pushl (efi_rt_function_ptr) - - /* -- * 10. Push the saved return address onto the stack and return. -+ * 10. Return to the saved return address. - */ -- leal saved_return_addr, %edx -- movl (%edx), %ecx -- pushl %ecx -- ret -+ jmpl *(saved_return_addr) - ENDPROC(efi_call_phys) - .previous - --.data -+__INITDATA - saved_return_addr: - .long 0 - efi_rt_function_ptr: -diff -urNp linux-3.0.4/arch/x86/platform/mrst/mrst.c linux-3.0.4/arch/x86/platform/mrst/mrst.c ---- linux-3.0.4/arch/x86/platform/mrst/mrst.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/mrst/mrst.c 2011-08-23 21:47:55.000000000 -0400 -@@ -239,14 +239,16 @@ static int mrst_i8042_detect(void) - } - - /* Reboot and power off are handled by the SCU on a MID device */ --static void mrst_power_off(void) -+static __noreturn void mrst_power_off(void) - { - intel_scu_ipc_simple_command(0xf1, 1); -+ BUG(); - } - --static void mrst_reboot(void) -+static __noreturn void mrst_reboot(void) - { - intel_scu_ipc_simple_command(0xf1, 0); -+ BUG(); - } - - /* -diff -urNp linux-3.0.4/arch/x86/platform/uv/tlb_uv.c linux-3.0.4/arch/x86/platform/uv/tlb_uv.c ---- linux-3.0.4/arch/x86/platform/uv/tlb_uv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/platform/uv/tlb_uv.c 2011-08-23 21:48:14.000000000 -0400 -@@ -373,6 +373,8 @@ static void reset_with_ipi(struct bau_ta - cpumask_t mask; - struct reset_args reset_args; - -+ pax_track_stack(); -+ - reset_args.sender = sender; - cpus_clear(mask); - /* find a single cpu for each uvhub in this distribution mask */ -diff -urNp linux-3.0.4/arch/x86/power/cpu.c linux-3.0.4/arch/x86/power/cpu.c ---- linux-3.0.4/arch/x86/power/cpu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/power/cpu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -130,7 +130,7 @@ static void do_fpu_end(void) - static void fix_processor_context(void) - { - int cpu = smp_processor_id(); -- struct tss_struct *t = &per_cpu(init_tss, cpu); -+ struct tss_struct *t = init_tss + cpu; - - set_tss_desc(cpu, t); /* - * This just modifies memory; should not be -@@ -140,7 +140,9 @@ static void fix_processor_context(void) - */ - - #ifdef CONFIG_X86_64 -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[GDT_ENTRY_TSS].type = 9; -+ pax_close_kernel(); - - syscall_init(); /* This sets MSR_*STAR and related */ - #endif -diff -urNp linux-3.0.4/arch/x86/vdso/Makefile linux-3.0.4/arch/x86/vdso/Makefile ---- linux-3.0.4/arch/x86/vdso/Makefile 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/Makefile 2011-08-23 21:47:55.000000000 -0400 -@@ -136,7 +136,7 @@ quiet_cmd_vdso = VDSO $@ - -Wl,-T,$(filter %.lds,$^) $(filter %.o,$^) && \ - sh $(srctree)/$(src)/checkundef.sh '$(NM)' '$@' - --VDSO_LDFLAGS = -fPIC -shared $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) -+VDSO_LDFLAGS = -fPIC -shared -Wl,--no-undefined $(call cc-ldoption, -Wl$(comma)--hash-style=sysv) - GCOV_PROFILE := n - - # -diff -urNp linux-3.0.4/arch/x86/vdso/vdso32-setup.c linux-3.0.4/arch/x86/vdso/vdso32-setup.c ---- linux-3.0.4/arch/x86/vdso/vdso32-setup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/vdso32-setup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -25,6 +25,7 @@ - #include - #include - #include -+#include - - enum { - VDSO_DISABLED = 0, -@@ -226,7 +227,7 @@ static inline void map_compat_vdso(int m - void enable_sep_cpu(void) - { - int cpu = get_cpu(); -- struct tss_struct *tss = &per_cpu(init_tss, cpu); -+ struct tss_struct *tss = init_tss + cpu; - - if (!boot_cpu_has(X86_FEATURE_SEP)) { - put_cpu(); -@@ -249,7 +250,7 @@ static int __init gate_vma_init(void) - gate_vma.vm_start = FIXADDR_USER_START; - gate_vma.vm_end = FIXADDR_USER_END; - gate_vma.vm_flags = VM_READ | VM_MAYREAD | VM_EXEC | VM_MAYEXEC; -- gate_vma.vm_page_prot = __P101; -+ gate_vma.vm_page_prot = vm_get_page_prot(gate_vma.vm_flags); - /* - * Make sure the vDSO gets into every core dump. - * Dumping its contents makes post-mortem fully interpretable later -@@ -331,14 +332,14 @@ int arch_setup_additional_pages(struct l - if (compat) - addr = VDSO_HIGH_BASE; - else { -- addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, 0); -+ addr = get_unmapped_area(NULL, 0, PAGE_SIZE, 0, MAP_EXECUTABLE); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - } - -- current->mm->context.vdso = (void *)addr; -+ current->mm->context.vdso = addr; - - if (compat_uses_vma || !compat) { - /* -@@ -361,11 +362,11 @@ int arch_setup_additional_pages(struct l - } - - current_thread_info()->sysenter_return = -- VDSO32_SYMBOL(addr, SYSENTER_RETURN); -+ (__force void __user *)VDSO32_SYMBOL(addr, SYSENTER_RETURN); - - up_fail: - if (ret) -- current->mm->context.vdso = NULL; -+ current->mm->context.vdso = 0; - - up_write(&mm->mmap_sem); - -@@ -412,8 +413,14 @@ __initcall(ia32_binfmt_init); - - const char *arch_vma_name(struct vm_area_struct *vma) - { -- if (vma->vm_mm && vma->vm_start == (long)vma->vm_mm->context.vdso) -+ if (vma->vm_mm && vma->vm_start == vma->vm_mm->context.vdso) - return "[vdso]"; -+ -+#ifdef CONFIG_PAX_SEGMEXEC -+ if (vma->vm_mm && vma->vm_mirror && vma->vm_mirror->vm_start == vma->vm_mm->context.vdso) -+ return "[vdso]"; -+#endif -+ - return NULL; - } - -@@ -423,7 +430,7 @@ struct vm_area_struct *get_gate_vma(stru - * Check to see if the corresponding task was created in compat vdso - * mode. - */ -- if (mm && mm->context.vdso == (void *)VDSO_HIGH_BASE) -+ if (mm && mm->context.vdso == VDSO_HIGH_BASE) - return &gate_vma; - return NULL; - } -diff -urNp linux-3.0.4/arch/x86/vdso/vma.c linux-3.0.4/arch/x86/vdso/vma.c ---- linux-3.0.4/arch/x86/vdso/vma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/vdso/vma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -15,18 +15,19 @@ - #include - #include - --unsigned int __read_mostly vdso_enabled = 1; -- - extern char vdso_start[], vdso_end[]; - extern unsigned short vdso_sync_cpuid; -+extern char __vsyscall_0; - - static struct page **vdso_pages; -+static struct page *vsyscall_page; - static unsigned vdso_size; - - static int __init init_vdso_vars(void) - { -- int npages = (vdso_end - vdso_start + PAGE_SIZE - 1) / PAGE_SIZE; -- int i; -+ size_t nbytes = vdso_end - vdso_start; -+ size_t npages = (nbytes + PAGE_SIZE - 1) / PAGE_SIZE; -+ size_t i; - - vdso_size = npages << PAGE_SHIFT; - vdso_pages = kmalloc(sizeof(struct page *) * npages, GFP_KERNEL); -@@ -34,19 +35,19 @@ static int __init init_vdso_vars(void) - goto oom; - for (i = 0; i < npages; i++) { - struct page *p; -- p = alloc_page(GFP_KERNEL); -+ p = alloc_page(GFP_KERNEL | __GFP_ZERO); - if (!p) - goto oom; - vdso_pages[i] = p; -- copy_page(page_address(p), vdso_start + i*PAGE_SIZE); -+ memcpy(page_address(p), vdso_start + i*PAGE_SIZE, nbytes > PAGE_SIZE ? PAGE_SIZE : nbytes); -+ nbytes -= PAGE_SIZE; - } -+ vsyscall_page = pfn_to_page((__pa_symbol(&__vsyscall_0)) >> PAGE_SHIFT); - - return 0; - - oom: -- printk("Cannot allocate vdso\n"); -- vdso_enabled = 0; -- return -ENOMEM; -+ panic("Cannot allocate vdso\n"); - } - subsys_initcall(init_vdso_vars); - -@@ -80,37 +81,35 @@ int arch_setup_additional_pages(struct l - unsigned long addr; - int ret; - -- if (!vdso_enabled) -- return 0; -- - down_write(&mm->mmap_sem); -- addr = vdso_addr(mm->start_stack, vdso_size); -- addr = get_unmapped_area(NULL, addr, vdso_size, 0, 0); -+ addr = vdso_addr(mm->start_stack, vdso_size + PAGE_SIZE); -+ addr = get_unmapped_area(NULL, addr, vdso_size + PAGE_SIZE, 0, 0); - if (IS_ERR_VALUE(addr)) { - ret = addr; - goto up_fail; - } - -- current->mm->context.vdso = (void *)addr; -+ mm->context.vdso = addr + PAGE_SIZE; - -- ret = install_special_mapping(mm, addr, vdso_size, -+ ret = install_special_mapping(mm, addr, PAGE_SIZE, - VM_READ|VM_EXEC| -- VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| -+ VM_MAYREAD|VM_MAYEXEC| - VM_ALWAYSDUMP, -- vdso_pages); -+ &vsyscall_page); - if (ret) { -- current->mm->context.vdso = NULL; -+ mm->context.vdso = 0; - goto up_fail; - } - -+ ret = install_special_mapping(mm, addr + PAGE_SIZE, vdso_size, -+ VM_READ|VM_EXEC| -+ VM_MAYREAD|VM_MAYWRITE|VM_MAYEXEC| -+ VM_ALWAYSDUMP, -+ vdso_pages); -+ if (ret) -+ mm->context.vdso = 0; -+ - up_fail: - up_write(&mm->mmap_sem); - return ret; - } -- --static __init int vdso_setup(char *s) --{ -- vdso_enabled = simple_strtoul(s, NULL, 0); -- return 0; --} --__setup("vdso=", vdso_setup); -diff -urNp linux-3.0.4/arch/x86/xen/enlighten.c linux-3.0.4/arch/x86/xen/enlighten.c ---- linux-3.0.4/arch/x86/xen/enlighten.c 2011-08-29 23:26:13.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/enlighten.c 2011-08-29 23:26:21.000000000 -0400 -@@ -85,8 +85,6 @@ EXPORT_SYMBOL_GPL(xen_start_info); - - struct shared_info xen_dummy_shared_info; - --void *xen_initial_gdt; -- - RESERVE_BRK(shared_info_page_brk, PAGE_SIZE); - __read_mostly int xen_have_vector_callback; - EXPORT_SYMBOL_GPL(xen_have_vector_callback); -@@ -1010,7 +1008,7 @@ static const struct pv_apic_ops xen_apic - #endif - }; - --static void xen_reboot(int reason) -+static __noreturn void xen_reboot(int reason) - { - struct sched_shutdown r = { .reason = reason }; - -@@ -1018,17 +1016,17 @@ static void xen_reboot(int reason) - BUG(); - } - --static void xen_restart(char *msg) -+static __noreturn void xen_restart(char *msg) - { - xen_reboot(SHUTDOWN_reboot); - } - --static void xen_emergency_restart(void) -+static __noreturn void xen_emergency_restart(void) - { - xen_reboot(SHUTDOWN_reboot); - } - --static void xen_machine_halt(void) -+static __noreturn void xen_machine_halt(void) - { - xen_reboot(SHUTDOWN_poweroff); - } -@@ -1134,7 +1132,17 @@ asmlinkage void __init xen_start_kernel( - __userpte_alloc_gfp &= ~__GFP_HIGHMEM; - - /* Work out if we support NX */ -- x86_configure_nx(); -+#if defined(CONFIG_X86_64) || defined(CONFIG_X86_PAE) -+ if ((cpuid_eax(0x80000000) & 0xffff0000) == 0x80000000 && -+ (cpuid_edx(0x80000001) & (1U << (X86_FEATURE_NX & 31)))) { -+ unsigned l, h; -+ -+ __supported_pte_mask |= _PAGE_NX; -+ rdmsr(MSR_EFER, l, h); -+ l |= EFER_NX; -+ wrmsr(MSR_EFER, l, h); -+ } -+#endif - - xen_setup_features(); - -@@ -1165,13 +1173,6 @@ asmlinkage void __init xen_start_kernel( - - machine_ops = xen_machine_ops; - -- /* -- * The only reliable way to retain the initial address of the -- * percpu gdt_page is to remember it here, so we can go and -- * mark it RW later, when the initial percpu area is freed. -- */ -- xen_initial_gdt = &per_cpu(gdt_page, 0); -- - xen_smp_init(); - - #ifdef CONFIG_ACPI_NUMA -diff -urNp linux-3.0.4/arch/x86/xen/mmu.c linux-3.0.4/arch/x86/xen/mmu.c ---- linux-3.0.4/arch/x86/xen/mmu.c 2011-08-29 23:26:13.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/mmu.c 2011-08-29 23:26:21.000000000 -0400 -@@ -1683,6 +1683,8 @@ pgd_t * __init xen_setup_kernel_pagetabl - convert_pfn_mfn(init_level4_pgt); - convert_pfn_mfn(level3_ident_pgt); - convert_pfn_mfn(level3_kernel_pgt); -+ convert_pfn_mfn(level3_vmalloc_pgt); -+ convert_pfn_mfn(level3_vmemmap_pgt); - - l3 = m2v(pgd[pgd_index(__START_KERNEL_map)].pgd); - l2 = m2v(l3[pud_index(__START_KERNEL_map)].pud); -@@ -1701,7 +1703,10 @@ pgd_t * __init xen_setup_kernel_pagetabl - set_page_prot(init_level4_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_ident_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_kernel_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmalloc_pgt, PAGE_KERNEL_RO); -+ set_page_prot(level3_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level3_user_vsyscall, PAGE_KERNEL_RO); -+ set_page_prot(level2_vmemmap_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_kernel_pgt, PAGE_KERNEL_RO); - set_page_prot(level2_fixmap_pgt, PAGE_KERNEL_RO); - -@@ -1913,6 +1918,7 @@ static void __init xen_post_allocator_in - pv_mmu_ops.set_pud = xen_set_pud; - #if PAGETABLE_LEVELS == 4 - pv_mmu_ops.set_pgd = xen_set_pgd; -+ pv_mmu_ops.set_pgd_batched = xen_set_pgd; - #endif - - /* This will work as long as patching hasn't happened yet -@@ -1994,6 +2000,7 @@ static const struct pv_mmu_ops xen_mmu_o - .pud_val = PV_CALLEE_SAVE(xen_pud_val), - .make_pud = PV_CALLEE_SAVE(xen_make_pud), - .set_pgd = xen_set_pgd_hyper, -+ .set_pgd_batched = xen_set_pgd_hyper, - - .alloc_pud = xen_alloc_pmd_init, - .release_pud = xen_release_pmd_init, -diff -urNp linux-3.0.4/arch/x86/xen/smp.c linux-3.0.4/arch/x86/xen/smp.c ---- linux-3.0.4/arch/x86/xen/smp.c 2011-08-29 23:26:13.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/smp.c 2011-08-29 23:26:21.000000000 -0400 -@@ -193,11 +193,6 @@ static void __init xen_smp_prepare_boot_ - { - BUG_ON(smp_processor_id() != 0); - native_smp_prepare_boot_cpu(); -- -- /* We've switched to the "real" per-cpu gdt, so make sure the -- old memory can be recycled */ -- make_lowmem_page_readwrite(xen_initial_gdt); -- - xen_filter_cpu_maps(); - xen_setup_vcpu_info_placement(); - } -@@ -265,12 +260,12 @@ cpu_initialize_context(unsigned int cpu, - gdt = get_cpu_gdt_table(cpu); - - ctxt->flags = VGCF_IN_KERNEL; -- ctxt->user_regs.ds = __USER_DS; -- ctxt->user_regs.es = __USER_DS; -+ ctxt->user_regs.ds = __KERNEL_DS; -+ ctxt->user_regs.es = __KERNEL_DS; - ctxt->user_regs.ss = __KERNEL_DS; - #ifdef CONFIG_X86_32 - ctxt->user_regs.fs = __KERNEL_PERCPU; -- ctxt->user_regs.gs = __KERNEL_STACK_CANARY; -+ savesegment(gs, ctxt->user_regs.gs); - #else - ctxt->gs_base_kernel = per_cpu_offset(cpu); - #endif -@@ -321,13 +316,12 @@ static int __cpuinit xen_cpu_up(unsigned - int rc; - - per_cpu(current_task, cpu) = idle; -+ per_cpu(current_tinfo, cpu) = &idle->tinfo; - #ifdef CONFIG_X86_32 - irq_ctx_init(cpu); - #else - clear_tsk_thread_flag(idle, TIF_FORK); -- per_cpu(kernel_stack, cpu) = -- (unsigned long)task_stack_page(idle) - -- KERNEL_STACK_OFFSET + THREAD_SIZE; -+ per_cpu(kernel_stack, cpu) = (unsigned long)task_stack_page(idle) - 16 + THREAD_SIZE; - #endif - xen_setup_runstate_info(cpu); - xen_setup_timer(cpu); -diff -urNp linux-3.0.4/arch/x86/xen/xen-asm_32.S linux-3.0.4/arch/x86/xen/xen-asm_32.S ---- linux-3.0.4/arch/x86/xen/xen-asm_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-asm_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -83,14 +83,14 @@ ENTRY(xen_iret) - ESP_OFFSET=4 # bytes pushed onto stack - - /* -- * Store vcpu_info pointer for easy access. Do it this way to -- * avoid having to reload %fs -+ * Store vcpu_info pointer for easy access. - */ - #ifdef CONFIG_SMP -- GET_THREAD_INFO(%eax) -- movl TI_cpu(%eax), %eax -- movl __per_cpu_offset(,%eax,4), %eax -- mov xen_vcpu(%eax), %eax -+ push %fs -+ mov $(__KERNEL_PERCPU), %eax -+ mov %eax, %fs -+ mov PER_CPU_VAR(xen_vcpu), %eax -+ pop %fs - #else - movl xen_vcpu, %eax - #endif -diff -urNp linux-3.0.4/arch/x86/xen/xen-head.S linux-3.0.4/arch/x86/xen/xen-head.S ---- linux-3.0.4/arch/x86/xen/xen-head.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-head.S 2011-08-23 21:47:55.000000000 -0400 -@@ -19,6 +19,17 @@ ENTRY(startup_xen) - #ifdef CONFIG_X86_32 - mov %esi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%esp -+#ifdef CONFIG_SMP -+ movl $cpu_gdt_table,%edi -+ movl $__per_cpu_load,%eax -+ movw %ax,__KERNEL_PERCPU + 2(%edi) -+ rorl $16,%eax -+ movb %al,__KERNEL_PERCPU + 4(%edi) -+ movb %ah,__KERNEL_PERCPU + 7(%edi) -+ movl $__per_cpu_end - 1,%eax -+ subl $__per_cpu_start,%eax -+ movw %ax,__KERNEL_PERCPU + 0(%edi) -+#endif - #else - mov %rsi,xen_start_info - mov $init_thread_union+THREAD_SIZE,%rsp -diff -urNp linux-3.0.4/arch/x86/xen/xen-ops.h linux-3.0.4/arch/x86/xen/xen-ops.h ---- linux-3.0.4/arch/x86/xen/xen-ops.h 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/arch/x86/xen/xen-ops.h 2011-08-23 21:47:55.000000000 -0400 -@@ -10,8 +10,6 @@ - extern const char xen_hypervisor_callback[]; - extern const char xen_failsafe_callback[]; - --extern void *xen_initial_gdt; -- - struct trap_info; - void xen_copy_trap_info(struct trap_info *traps); - -diff -urNp linux-3.0.4/block/blk-iopoll.c linux-3.0.4/block/blk-iopoll.c ---- linux-3.0.4/block/blk-iopoll.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-iopoll.c 2011-08-23 21:47:55.000000000 -0400 -@@ -77,7 +77,7 @@ void blk_iopoll_complete(struct blk_iopo - } - EXPORT_SYMBOL(blk_iopoll_complete); - --static void blk_iopoll_softirq(struct softirq_action *h) -+static void blk_iopoll_softirq(void) - { - struct list_head *list = &__get_cpu_var(blk_cpu_iopoll); - int rearm = 0, budget = blk_iopoll_budget; -diff -urNp linux-3.0.4/block/blk-map.c linux-3.0.4/block/blk-map.c ---- linux-3.0.4/block/blk-map.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-map.c 2011-08-23 21:47:55.000000000 -0400 -@@ -301,7 +301,7 @@ int blk_rq_map_kern(struct request_queue - if (!len || !kbuf) - return -EINVAL; - -- do_copy = !blk_rq_aligned(q, addr, len) || object_is_on_stack(kbuf); -+ do_copy = !blk_rq_aligned(q, addr, len) || object_starts_on_stack(kbuf); - if (do_copy) - bio = bio_copy_kern(q, kbuf, len, gfp_mask, reading); - else -diff -urNp linux-3.0.4/block/blk-softirq.c linux-3.0.4/block/blk-softirq.c ---- linux-3.0.4/block/blk-softirq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/blk-softirq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -17,7 +17,7 @@ static DEFINE_PER_CPU(struct list_head, - * Softirq action handler - move entries to local list and loop over them - * while passing them to the queue registered handler. - */ --static void blk_done_softirq(struct softirq_action *h) -+static void blk_done_softirq(void) - { - struct list_head *cpu_list, local_list; - -diff -urNp linux-3.0.4/block/bsg.c linux-3.0.4/block/bsg.c ---- linux-3.0.4/block/bsg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/bsg.c 2011-08-23 21:47:55.000000000 -0400 -@@ -176,16 +176,24 @@ static int blk_fill_sgv4_hdr_rq(struct r - struct sg_io_v4 *hdr, struct bsg_device *bd, - fmode_t has_write_perm) - { -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; -+ - if (hdr->request_len > BLK_MAX_CDB) { - rq->cmd = kzalloc(hdr->request_len, GFP_KERNEL); - if (!rq->cmd) - return -ENOMEM; -- } -+ cmdptr = rq->cmd; -+ } else -+ cmdptr = tmpcmd; - -- if (copy_from_user(rq->cmd, (void *)(unsigned long)hdr->request, -+ if (copy_from_user(cmdptr, (void *)(unsigned long)hdr->request, - hdr->request_len)) - return -EFAULT; - -+ if (cmdptr != rq->cmd) -+ memcpy(rq->cmd, cmdptr, hdr->request_len); -+ - if (hdr->subprotocol == BSG_SUB_PROTOCOL_SCSI_CMD) { - if (blk_verify_command(rq->cmd, has_write_perm)) - return -EPERM; -diff -urNp linux-3.0.4/block/scsi_ioctl.c linux-3.0.4/block/scsi_ioctl.c ---- linux-3.0.4/block/scsi_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/block/scsi_ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -222,8 +222,20 @@ EXPORT_SYMBOL(blk_verify_command); - static int blk_fill_sghdr_rq(struct request_queue *q, struct request *rq, - struct sg_io_hdr *hdr, fmode_t mode) - { -- if (copy_from_user(rq->cmd, hdr->cmdp, hdr->cmd_len)) -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; -+ -+ if (rq->cmd != rq->__cmd) -+ cmdptr = rq->cmd; -+ else -+ cmdptr = tmpcmd; -+ -+ if (copy_from_user(cmdptr, hdr->cmdp, hdr->cmd_len)) - return -EFAULT; -+ -+ if (cmdptr != rq->cmd) -+ memcpy(rq->cmd, cmdptr, hdr->cmd_len); -+ - if (blk_verify_command(rq->cmd, mode & FMODE_WRITE)) - return -EPERM; - -@@ -432,6 +444,8 @@ int sg_scsi_ioctl(struct request_queue * - int err; - unsigned int in_len, out_len, bytes, opcode, cmdlen; - char *buffer = NULL, sense[SCSI_SENSE_BUFFERSIZE]; -+ unsigned char tmpcmd[sizeof(rq->__cmd)]; -+ unsigned char *cmdptr; - - if (!sic) - return -EINVAL; -@@ -465,9 +479,18 @@ int sg_scsi_ioctl(struct request_queue * - */ - err = -EFAULT; - rq->cmd_len = cmdlen; -- if (copy_from_user(rq->cmd, sic->data, cmdlen)) -+ -+ if (rq->cmd != rq->__cmd) -+ cmdptr = rq->cmd; -+ else -+ cmdptr = tmpcmd; -+ -+ if (copy_from_user(cmdptr, sic->data, cmdlen)) - goto error; - -+ if (rq->cmd != cmdptr) -+ memcpy(rq->cmd, cmdptr, cmdlen); -+ - if (in_len && copy_from_user(buffer, sic->data + cmdlen, in_len)) - goto error; - -diff -urNp linux-3.0.4/crypto/cryptd.c linux-3.0.4/crypto/cryptd.c ---- linux-3.0.4/crypto/cryptd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/cryptd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -63,7 +63,7 @@ struct cryptd_blkcipher_ctx { - - struct cryptd_blkcipher_request_ctx { - crypto_completion_t complete; --}; -+} __no_const; - - struct cryptd_hash_ctx { - struct crypto_shash *child; -@@ -80,7 +80,7 @@ struct cryptd_aead_ctx { - - struct cryptd_aead_request_ctx { - crypto_completion_t complete; --}; -+} __no_const; - - static void cryptd_queue_worker(struct work_struct *work); - -diff -urNp linux-3.0.4/crypto/gf128mul.c linux-3.0.4/crypto/gf128mul.c ---- linux-3.0.4/crypto/gf128mul.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/gf128mul.c 2011-08-23 21:47:55.000000000 -0400 -@@ -182,7 +182,7 @@ void gf128mul_lle(be128 *r, const be128 - for (i = 0; i < 7; ++i) - gf128mul_x_lle(&p[i + 1], &p[i]); - -- memset(r, 0, sizeof(r)); -+ memset(r, 0, sizeof(*r)); - for (i = 0;;) { - u8 ch = ((u8 *)b)[15 - i]; - -@@ -220,7 +220,7 @@ void gf128mul_bbe(be128 *r, const be128 - for (i = 0; i < 7; ++i) - gf128mul_x_bbe(&p[i + 1], &p[i]); - -- memset(r, 0, sizeof(r)); -+ memset(r, 0, sizeof(*r)); - for (i = 0;;) { - u8 ch = ((u8 *)b)[i]; - -diff -urNp linux-3.0.4/crypto/serpent.c linux-3.0.4/crypto/serpent.c ---- linux-3.0.4/crypto/serpent.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/crypto/serpent.c 2011-08-23 21:48:14.000000000 -0400 -@@ -224,6 +224,8 @@ static int serpent_setkey(struct crypto_ - u32 r0,r1,r2,r3,r4; - int i; - -+ pax_track_stack(); -+ - /* Copy key, add padding */ - - for (i = 0; i < keylen; ++i) -diff -urNp linux-3.0.4/Documentation/dontdiff linux-3.0.4/Documentation/dontdiff ---- linux-3.0.4/Documentation/dontdiff 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/Documentation/dontdiff 2011-08-23 21:47:55.000000000 -0400 -@@ -5,6 +5,7 @@ - *.cis - *.cpio - *.csp -+*.dbg - *.dsp - *.dvi - *.elf -@@ -48,9 +49,11 @@ - *.tab.h - *.tex - *.ver -+*.vim - *.xml - *.xz - *_MODULES -+*_reg_safe.h - *_vga16.c - *~ - \#*# -@@ -70,6 +73,7 @@ Kerntypes - Module.markers - Module.symvers - PENDING -+PERF* - SCCS - System.map* - TAGS -@@ -98,6 +102,8 @@ bzImage* - capability_names.h - capflags.c - classlist.h* -+clut_vga16.c -+common-cmds.h - comp*.log - compile.h* - conf -@@ -126,12 +132,14 @@ fore200e_pca_fw.c* - gconf - gconf.glade.h - gen-devlist -+gen-kdb_cmds.c - gen_crc32table - gen_init_cpio - generated - genheaders - genksyms - *_gray256.c -+hash - hpet_example - hugepage-mmap - hugepage-shm -@@ -146,7 +154,6 @@ int32.c - int4.c - int8.c - kallsyms --kconfig - keywords.c - ksym.c* - ksym.h* -@@ -154,7 +161,6 @@ kxgettext - lkc_defs.h - lex.c - lex.*.c --linux - logo_*.c - logo_*_clut224.c - logo_*_mono.c -@@ -174,6 +180,7 @@ mkboot - mkbugboot - mkcpustr - mkdep -+mkpiggy - mkprep - mkregtable - mktables -@@ -209,6 +216,7 @@ r300_reg_safe.h - r420_reg_safe.h - r600_reg_safe.h - recordmcount -+regdb.c - relocs - rlim_names.h - rn50_reg_safe.h -@@ -219,6 +227,7 @@ setup - setup.bin - setup.elf - sImage -+slabinfo - sm_tbl* - split-include - syscalltab.h -@@ -246,7 +255,9 @@ vmlinux - vmlinux-* - vmlinux.aout - vmlinux.bin.all -+vmlinux.bin.bz2 - vmlinux.lds -+vmlinux.relocs - vmlinuz - voffset.h - vsyscall.lds -@@ -254,6 +265,7 @@ vsyscall_32.lds - wanxlfw.inc - uImage - unifdef -+utsrelease.h - wakeup.bin - wakeup.elf - wakeup.lds -diff -urNp linux-3.0.4/Documentation/kernel-parameters.txt linux-3.0.4/Documentation/kernel-parameters.txt ---- linux-3.0.4/Documentation/kernel-parameters.txt 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/Documentation/kernel-parameters.txt 2011-08-23 21:47:55.000000000 -0400 -@@ -1883,6 +1883,13 @@ bytes respectively. Such letter suffixes - the specified number of seconds. This is to be used if - your oopses keep scrolling off the screen. - -+ pax_nouderef [X86] disables UDEREF. Most likely needed under certain -+ virtualization environments that don't cope well with the -+ expand down segment used by UDEREF on X86-32 or the frequent -+ page table updates on X86-64. -+ -+ pax_softmode= 0/1 to disable/enable PaX softmode on boot already. -+ - pcbit= [HW,ISDN] - - pcd. [PARIDE] -diff -urNp linux-3.0.4/drivers/acpi/apei/cper.c linux-3.0.4/drivers/acpi/apei/cper.c ---- linux-3.0.4/drivers/acpi/apei/cper.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/apei/cper.c 2011-08-23 21:47:55.000000000 -0400 -@@ -38,12 +38,12 @@ - */ - u64 cper_next_record_id(void) - { -- static atomic64_t seq; -+ static atomic64_unchecked_t seq; - -- if (!atomic64_read(&seq)) -- atomic64_set(&seq, ((u64)get_seconds()) << 32); -+ if (!atomic64_read_unchecked(&seq)) -+ atomic64_set_unchecked(&seq, ((u64)get_seconds()) << 32); - -- return atomic64_inc_return(&seq); -+ return atomic64_inc_return_unchecked(&seq); - } - EXPORT_SYMBOL_GPL(cper_next_record_id); - -diff -urNp linux-3.0.4/drivers/acpi/ec_sys.c linux-3.0.4/drivers/acpi/ec_sys.c ---- linux-3.0.4/drivers/acpi/ec_sys.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/ec_sys.c 2011-08-24 19:06:55.000000000 -0400 -@@ -11,6 +11,7 @@ - #include - #include - #include -+#include - #include "internal.h" - - MODULE_AUTHOR("Thomas Renninger "); -@@ -39,7 +40,7 @@ static ssize_t acpi_ec_read_io(struct fi - * struct acpi_ec *ec = ((struct seq_file *)f->private_data)->private; - */ - unsigned int size = EC_SPACE_SIZE; -- u8 *data = (u8 *) buf; -+ u8 data; - loff_t init_off = *off; - int err = 0; - -@@ -52,9 +53,11 @@ static ssize_t acpi_ec_read_io(struct fi - size = count; - - while (size) { -- err = ec_read(*off, &data[*off - init_off]); -+ err = ec_read(*off, &data); - if (err) - return err; -+ if (put_user(data, &buf[*off - init_off])) -+ return -EFAULT; - *off += 1; - size--; - } -@@ -70,7 +73,6 @@ static ssize_t acpi_ec_write_io(struct f - - unsigned int size = count; - loff_t init_off = *off; -- u8 *data = (u8 *) buf; - int err = 0; - - if (*off >= EC_SPACE_SIZE) -@@ -81,7 +83,9 @@ static ssize_t acpi_ec_write_io(struct f - } - - while (size) { -- u8 byte_write = data[*off - init_off]; -+ u8 byte_write; -+ if (get_user(byte_write, &buf[*off - init_off])) -+ return -EFAULT; - err = ec_write(*off, byte_write); - if (err) - return err; -diff -urNp linux-3.0.4/drivers/acpi/proc.c linux-3.0.4/drivers/acpi/proc.c ---- linux-3.0.4/drivers/acpi/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/proc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -342,19 +342,13 @@ acpi_system_write_wakeup_device(struct f - size_t count, loff_t * ppos) - { - struct list_head *node, *next; -- char strbuf[5]; -- char str[5] = ""; -- unsigned int len = count; -- -- if (len > 4) -- len = 4; -- if (len < 0) -- return -EFAULT; -+ char strbuf[5] = {0}; - -- if (copy_from_user(strbuf, buffer, len)) -+ if (count > 4) -+ count = 4; -+ if (copy_from_user(strbuf, buffer, count)) - return -EFAULT; -- strbuf[len] = '\0'; -- sscanf(strbuf, "%s", str); -+ strbuf[count] = '\0'; - - mutex_lock(&acpi_device_lock); - list_for_each_safe(node, next, &acpi_wakeup_device_list) { -@@ -363,7 +357,7 @@ acpi_system_write_wakeup_device(struct f - if (!dev->wakeup.flags.valid) - continue; - -- if (!strncmp(dev->pnp.bus_id, str, 4)) { -+ if (!strncmp(dev->pnp.bus_id, strbuf, 4)) { - if (device_can_wakeup(&dev->dev)) { - bool enable = !device_may_wakeup(&dev->dev); - device_set_wakeup_enable(&dev->dev, enable); -diff -urNp linux-3.0.4/drivers/acpi/processor_driver.c linux-3.0.4/drivers/acpi/processor_driver.c ---- linux-3.0.4/drivers/acpi/processor_driver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/acpi/processor_driver.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,7 +473,7 @@ static int __cpuinit acpi_processor_add( - return 0; - #endif - -- BUG_ON((pr->id >= nr_cpu_ids) || (pr->id < 0)); -+ BUG_ON(pr->id >= nr_cpu_ids); - - /* - * Buggy BIOS check -diff -urNp linux-3.0.4/drivers/ata/libata-core.c linux-3.0.4/drivers/ata/libata-core.c ---- linux-3.0.4/drivers/ata/libata-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/libata-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -4753,7 +4753,7 @@ void ata_qc_free(struct ata_queued_cmd * - struct ata_port *ap; - unsigned int tag; - -- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ -+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ - ap = qc->ap; - - qc->flags = 0; -@@ -4769,7 +4769,7 @@ void __ata_qc_complete(struct ata_queued - struct ata_port *ap; - struct ata_link *link; - -- WARN_ON_ONCE(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ -+ BUG_ON(qc == NULL); /* ata_qc_from_tag _might_ return NULL */ - WARN_ON_ONCE(!(qc->flags & ATA_QCFLAG_ACTIVE)); - ap = qc->ap; - link = qc->dev->link; -@@ -5774,6 +5774,7 @@ static void ata_finalize_port_ops(struct - return; - - spin_lock(&lock); -+ pax_open_kernel(); - - for (cur = ops->inherits; cur; cur = cur->inherits) { - void **inherit = (void **)cur; -@@ -5787,8 +5788,9 @@ static void ata_finalize_port_ops(struct - if (IS_ERR(*pp)) - *pp = NULL; - -- ops->inherits = NULL; -+ *(struct ata_port_operations **)&ops->inherits = NULL; - -+ pax_close_kernel(); - spin_unlock(&lock); - } - -diff -urNp linux-3.0.4/drivers/ata/libata-eh.c linux-3.0.4/drivers/ata/libata-eh.c ---- linux-3.0.4/drivers/ata/libata-eh.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/libata-eh.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2518,6 +2518,8 @@ void ata_eh_report(struct ata_port *ap) - { - struct ata_link *link; - -+ pax_track_stack(); -+ - ata_for_each_link(link, ap, HOST_FIRST) - ata_eh_link_report(link); - } -diff -urNp linux-3.0.4/drivers/ata/pata_arasan_cf.c linux-3.0.4/drivers/ata/pata_arasan_cf.c ---- linux-3.0.4/drivers/ata/pata_arasan_cf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ata/pata_arasan_cf.c 2011-08-23 21:47:55.000000000 -0400 -@@ -862,7 +862,9 @@ static int __devinit arasan_cf_probe(str - /* Handle platform specific quirks */ - if (pdata->quirk) { - if (pdata->quirk & CF_BROKEN_PIO) { -- ap->ops->set_piomode = NULL; -+ pax_open_kernel(); -+ *(void **)&ap->ops->set_piomode = NULL; -+ pax_close_kernel(); - ap->pio_mask = 0; - } - if (pdata->quirk & CF_BROKEN_MWDMA) -diff -urNp linux-3.0.4/drivers/atm/adummy.c linux-3.0.4/drivers/atm/adummy.c ---- linux-3.0.4/drivers/atm/adummy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/adummy.c 2011-08-23 21:47:55.000000000 -0400 -@@ -114,7 +114,7 @@ adummy_send(struct atm_vcc *vcc, struct - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff -urNp linux-3.0.4/drivers/atm/ambassador.c linux-3.0.4/drivers/atm/ambassador.c ---- linux-3.0.4/drivers/atm/ambassador.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/ambassador.c 2011-08-23 21:47:55.000000000 -0400 -@@ -454,7 +454,7 @@ static void tx_complete (amb_dev * dev, - PRINTD (DBG_FLOW|DBG_TX, "tx_complete %p %p", dev, tx); - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the descriptor - kfree (tx_descr); -@@ -495,7 +495,7 @@ static void rx_complete (amb_dev * dev, - dump_skb ("<<<", vc, skb); - - // VC layer stats -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - // end of our responsibility - atm_vcc->push (atm_vcc, skb); -@@ -510,7 +510,7 @@ static void rx_complete (amb_dev * dev, - } else { - PRINTK (KERN_INFO, "dropped over-size frame"); - // should we count this? -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - } - - } else { -@@ -1342,7 +1342,7 @@ static int amb_send (struct atm_vcc * at - } - - if (check_area (skb->data, skb->len)) { -- atomic_inc(&atm_vcc->stats->tx_err); -+ atomic_inc_unchecked(&atm_vcc->stats->tx_err); - return -ENOMEM; // ? - } - -diff -urNp linux-3.0.4/drivers/atm/atmtcp.c linux-3.0.4/drivers/atm/atmtcp.c ---- linux-3.0.4/drivers/atm/atmtcp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/atmtcp.c 2011-08-23 21:47:55.000000000 -0400 -@@ -207,7 +207,7 @@ static int atmtcp_v_send(struct atm_vcc - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - if (dev_data) return 0; -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOLINK; - } - size = skb->len+sizeof(struct atmtcp_hdr); -@@ -215,7 +215,7 @@ static int atmtcp_v_send(struct atm_vcc - if (!new_skb) { - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOBUFS; - } - hdr = (void *) skb_put(new_skb,sizeof(struct atmtcp_hdr)); -@@ -226,8 +226,8 @@ static int atmtcp_v_send(struct atm_vcc - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - return 0; - } - -@@ -301,7 +301,7 @@ static int atmtcp_c_send(struct atm_vcc - out_vcc = find_vcc(dev, ntohs(hdr->vpi), ntohs(hdr->vci)); - read_unlock(&vcc_sklist_lock); - if (!out_vcc) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - goto done; - } - skb_pull(skb,sizeof(struct atmtcp_hdr)); -@@ -313,8 +313,8 @@ static int atmtcp_c_send(struct atm_vcc - __net_timestamp(new_skb); - skb_copy_from_linear_data(skb, skb_put(new_skb, skb->len), skb->len); - out_vcc->push(out_vcc,new_skb); -- atomic_inc(&vcc->stats->tx); -- atomic_inc(&out_vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->tx); -+ atomic_inc_unchecked(&out_vcc->stats->rx); - done: - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb(skb); -diff -urNp linux-3.0.4/drivers/atm/eni.c linux-3.0.4/drivers/atm/eni.c ---- linux-3.0.4/drivers/atm/eni.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/eni.c 2011-08-23 21:47:55.000000000 -0400 -@@ -526,7 +526,7 @@ static int rx_aal0(struct atm_vcc *vcc) - DPRINTK(DEV_LABEL "(itf %d): trashing empty cell\n", - vcc->dev->number); - length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - length = ATM_CELL_SIZE-1; /* no HEC */ -@@ -581,7 +581,7 @@ static int rx_aal5(struct atm_vcc *vcc) - size); - } - eff = length = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - else { - size = (descr & MID_RED_COUNT)*(ATM_CELL_PAYLOAD >> 2); -@@ -598,7 +598,7 @@ static int rx_aal5(struct atm_vcc *vcc) - "(VCI=%d,length=%ld,size=%ld (descr 0x%lx))\n", - vcc->dev->number,vcc->vci,length,size << 2,descr); - length = eff = 0; -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - skb = eff ? atm_alloc_charge(vcc,eff << 2,GFP_ATOMIC) : NULL; -@@ -771,7 +771,7 @@ rx_dequeued++; - vcc->push(vcc,skb); - pushed++; - } -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - wake_up(&eni_dev->rx_wait); - } -@@ -1228,7 +1228,7 @@ static void dequeue_tx(struct atm_dev *d - PCI_DMA_TODEVICE); - if (vcc->pop) vcc->pop(vcc,skb); - else dev_kfree_skb_irq(skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&eni_dev->tx_wait); - dma_complete++; - } -diff -urNp linux-3.0.4/drivers/atm/firestream.c linux-3.0.4/drivers/atm/firestream.c ---- linux-3.0.4/drivers/atm/firestream.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/firestream.c 2011-08-23 21:47:55.000000000 -0400 -@@ -749,7 +749,7 @@ static void process_txdone_queue (struct - } - } - -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - fs_dprintk (FS_DEBUG_TXMEM, "i"); - fs_dprintk (FS_DEBUG_ALLOC, "Free t-skb: %p\n", skb); -@@ -816,7 +816,7 @@ static void process_incoming (struct fs_ - #endif - skb_put (skb, qe->p1 & 0xffff); - ATM_SKB(skb)->vcc = atm_vcc; -- atomic_inc(&atm_vcc->stats->rx); -+ atomic_inc_unchecked(&atm_vcc->stats->rx); - __net_timestamp(skb); - fs_dprintk (FS_DEBUG_ALLOC, "Free rec-skb: %p (pushed)\n", skb); - atm_vcc->push (atm_vcc, skb); -@@ -837,12 +837,12 @@ static void process_incoming (struct fs_ - kfree (pe); - } - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - case 0x1f: /* Reassembly abort: no buffers. */ - /* Silently increment error counter. */ - if (atm_vcc) -- atomic_inc(&atm_vcc->stats->rx_drop); -+ atomic_inc_unchecked(&atm_vcc->stats->rx_drop); - break; - default: /* Hmm. Haven't written the code to handle the others yet... -- REW */ - printk (KERN_WARNING "Don't know what to do with RX status %x: %s.\n", -diff -urNp linux-3.0.4/drivers/atm/fore200e.c linux-3.0.4/drivers/atm/fore200e.c ---- linux-3.0.4/drivers/atm/fore200e.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/fore200e.c 2011-08-23 21:47:55.000000000 -0400 -@@ -933,9 +933,9 @@ fore200e_tx_irq(struct fore200e* fore200 - #endif - /* check error condition */ - if (*entry->status & STATUS_ERROR) -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - else -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - } - -@@ -1084,7 +1084,7 @@ fore200e_push_rpd(struct fore200e* fore2 - if (skb == NULL) { - DPRINTK(2, "unable to alloc new skb, rx PDU length = %d\n", pdu_len); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - -@@ -1127,14 +1127,14 @@ fore200e_push_rpd(struct fore200e* fore2 - - dev_kfree_skb_any(skb); - -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - return -ENOMEM; - } - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - ASSERT(atomic_read(&sk_atm(vcc)->sk_wmem_alloc) >= 0); - -@@ -1212,7 +1212,7 @@ fore200e_rx_irq(struct fore200e* fore200 - DPRINTK(2, "damaged PDU on %d.%d.%d\n", - fore200e->atm_dev->number, - entry->rpd->atm_header.vpi, entry->rpd->atm_header.vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - } - } - -@@ -1657,7 +1657,7 @@ fore200e_send(struct atm_vcc *vcc, struc - goto retry_here; - } - -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - - fore200e->tx_sat++; - DPRINTK(2, "tx queue of device %s is saturated, PDU dropped - heartbeat is %08x\n", -diff -urNp linux-3.0.4/drivers/atm/he.c linux-3.0.4/drivers/atm/he.c ---- linux-3.0.4/drivers/atm/he.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/he.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1709,7 +1709,7 @@ he_service_rbrq(struct he_dev *he_dev, i - - if (RBRQ_HBUF_ERR(he_dev->rbrq_head)) { - hprintk("HBUF_ERR! (cid 0x%x)\n", cid); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto return_host_buffers; - } - -@@ -1736,7 +1736,7 @@ he_service_rbrq(struct he_dev *he_dev, i - RBRQ_LEN_ERR(he_dev->rbrq_head) - ? "LEN_ERR" : "", - vcc->vpi, vcc->vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto return_host_buffers; - } - -@@ -1788,7 +1788,7 @@ he_service_rbrq(struct he_dev *he_dev, i - vcc->push(vcc, skb); - spin_lock(&he_dev->global_lock); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return_host_buffers: - ++pdus_assembled; -@@ -2114,7 +2114,7 @@ __enqueue_tpd(struct he_dev *he_dev, str - tpd->vcc->pop(tpd->vcc, tpd->skb); - else - dev_kfree_skb_any(tpd->skb); -- atomic_inc(&tpd->vcc->stats->tx_err); -+ atomic_inc_unchecked(&tpd->vcc->stats->tx_err); - } - pci_pool_free(he_dev->tpd_pool, tpd, TPD_ADDR(tpd->status)); - return; -@@ -2526,7 +2526,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - -@@ -2537,7 +2537,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -EINVAL; - } - #endif -@@ -2549,7 +2549,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2591,7 +2591,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - vcc->pop(vcc, skb); - else - dev_kfree_skb_any(skb); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - return -ENOMEM; - } -@@ -2622,7 +2622,7 @@ he_send(struct atm_vcc *vcc, struct sk_b - __enqueue_tpd(he_dev, tpd, cid); - spin_unlock_irqrestore(&he_dev->global_lock, flags); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -diff -urNp linux-3.0.4/drivers/atm/horizon.c linux-3.0.4/drivers/atm/horizon.c ---- linux-3.0.4/drivers/atm/horizon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/horizon.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1034,7 +1034,7 @@ static void rx_schedule (hrz_dev * dev, - { - struct atm_vcc * vcc = ATM_SKB(skb)->vcc; - // VC layer stats -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - __net_timestamp(skb); - // end of our responsibility - vcc->push (vcc, skb); -@@ -1186,7 +1186,7 @@ static void tx_schedule (hrz_dev * const - dev->tx_iovec = NULL; - - // VC layer stats -- atomic_inc(&ATM_SKB(skb)->vcc->stats->tx); -+ atomic_inc_unchecked(&ATM_SKB(skb)->vcc->stats->tx); - - // free the skb - hrz_kfree_skb (skb); -diff -urNp linux-3.0.4/drivers/atm/idt77252.c linux-3.0.4/drivers/atm/idt77252.c ---- linux-3.0.4/drivers/atm/idt77252.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/idt77252.c 2011-08-23 21:47:55.000000000 -0400 -@@ -811,7 +811,7 @@ drain_scq(struct idt77252_dev *card, str - else - dev_kfree_skb(skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - } - - atomic_dec(&scq->used); -@@ -1074,13 +1074,13 @@ dequeue_rx(struct idt77252_dev *card, st - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for aal0.\n", - card->name); -- atomic_add(i, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i, &vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) { - RXPRINTK("%s: atm_charge() dropped aal0 packets.\n", - card->name); -- atomic_add(i - 1, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); - dev_kfree_skb(sb); - break; - } -@@ -1097,7 +1097,7 @@ dequeue_rx(struct idt77252_dev *card, st - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - cell += ATM_CELL_PAYLOAD; - } -@@ -1134,13 +1134,13 @@ dequeue_rx(struct idt77252_dev *card, st - "(CDC: %08x)\n", - card->name, len, rpp->len, readl(SAR_REG_CDC)); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (stat & SAR_RSQE_CRC) { - RXPRINTK("%s: AAL5 CRC error.\n", card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (skb_queue_len(&rpp->queue) > 1) { -@@ -1151,7 +1151,7 @@ dequeue_rx(struct idt77252_dev *card, st - RXPRINTK("%s: Can't alloc RX skb.\n", - card->name); - recycle_rx_pool_skb(card, rpp); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - if (!atm_charge(vcc, skb->truesize)) { -@@ -1170,7 +1170,7 @@ dequeue_rx(struct idt77252_dev *card, st - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - return; - } -@@ -1192,7 +1192,7 @@ dequeue_rx(struct idt77252_dev *card, st - __net_timestamp(skb); - - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - if (skb->truesize > SAR_FB_SIZE_3) - add_rx_skb(card, 3, SAR_FB_SIZE_3, 1); -@@ -1303,14 +1303,14 @@ idt77252_rx_raw(struct idt77252_dev *car - if (vcc->qos.aal != ATM_AAL0) { - RPRINTK("%s: raw cell for non AAL0 vc %u.%u\n", - card->name, vpi, vci); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto drop; - } - - if ((sb = dev_alloc_skb(64)) == NULL) { - printk("%s: Can't allocate buffers for AAL0.\n", - card->name); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto drop; - } - -@@ -1329,7 +1329,7 @@ idt77252_rx_raw(struct idt77252_dev *car - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - - drop: - skb_pull(queue, 64); -@@ -1954,13 +1954,13 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - if (vc == NULL) { - printk("%s: NULL connection in send().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - if (!test_bit(VCF_TX, &vc->flags)) { - printk("%s: Trying to transmit on a non-tx VC.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1972,14 +1972,14 @@ idt77252_send_skb(struct atm_vcc *vcc, s - break; - default: - printk("%s: Unsupported AAL: %d\n", card->name, vcc->qos.aal); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } - - if (skb_shinfo(skb)->nr_frags != 0) { - printk("%s: No scatter-gather yet.\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return -EINVAL; - } -@@ -1987,7 +1987,7 @@ idt77252_send_skb(struct atm_vcc *vcc, s - - err = queue_skb(card, vc, skb, oam); - if (err) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb(skb); - return err; - } -@@ -2010,7 +2010,7 @@ idt77252_send_oam(struct atm_vcc *vcc, v - skb = dev_alloc_skb(64); - if (!skb) { - printk("%s: Out of memory in send_oam().\n", card->name); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - return -ENOMEM; - } - atomic_add(skb->truesize, &sk_atm(vcc)->sk_wmem_alloc); -diff -urNp linux-3.0.4/drivers/atm/iphase.c linux-3.0.4/drivers/atm/iphase.c ---- linux-3.0.4/drivers/atm/iphase.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/iphase.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1120,7 +1120,7 @@ static int rx_pkt(struct atm_dev *dev) - status = (u_short) (buf_desc_ptr->desc_mode); - if (status & (RX_CER | RX_PTE | RX_OFL)) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("IA: bad packet, dropping it");) - if (status & RX_CER) { - IF_ERR(printk(" cause: packet CRC error\n");) -@@ -1143,7 +1143,7 @@ static int rx_pkt(struct atm_dev *dev) - len = dma_addr - buf_addr; - if (len > iadev->rx_buf_sz) { - printk("Over %d bytes sdu received, dropped!!!\n", iadev->rx_buf_sz); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out_free_desc; - } - -@@ -1293,7 +1293,7 @@ static void rx_dle_intr(struct atm_dev * - ia_vcc = INPH_IA_VCC(vcc); - if (ia_vcc == NULL) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - dev_kfree_skb_any(skb); - atm_return(vcc, atm_guess_pdu2truesize(len)); - goto INCR_DLE; -@@ -1305,7 +1305,7 @@ static void rx_dle_intr(struct atm_dev * - if ((length > iadev->rx_buf_sz) || (length > - (skb->len - sizeof(struct cpcs_trailer)))) - { -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - IF_ERR(printk("rx_dle_intr: Bad AAL5 trailer %d (skb len %d)", - length, skb->len);) - dev_kfree_skb_any(skb); -@@ -1321,7 +1321,7 @@ static void rx_dle_intr(struct atm_dev * - - IF_RX(printk("rx_dle_intr: skb push");) - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - iadev->rx_pkt_cnt++; - } - INCR_DLE: -@@ -2801,15 +2801,15 @@ static int ia_ioctl(struct atm_dev *dev, - { - struct k_sonet_stats *stats; - stats = &PRIV(_ia_dev[board])->sonet_stats; -- printk("section_bip: %d\n", atomic_read(&stats->section_bip)); -- printk("line_bip : %d\n", atomic_read(&stats->line_bip)); -- printk("path_bip : %d\n", atomic_read(&stats->path_bip)); -- printk("line_febe : %d\n", atomic_read(&stats->line_febe)); -- printk("path_febe : %d\n", atomic_read(&stats->path_febe)); -- printk("corr_hcs : %d\n", atomic_read(&stats->corr_hcs)); -- printk("uncorr_hcs : %d\n", atomic_read(&stats->uncorr_hcs)); -- printk("tx_cells : %d\n", atomic_read(&stats->tx_cells)); -- printk("rx_cells : %d\n", atomic_read(&stats->rx_cells)); -+ printk("section_bip: %d\n", atomic_read_unchecked(&stats->section_bip)); -+ printk("line_bip : %d\n", atomic_read_unchecked(&stats->line_bip)); -+ printk("path_bip : %d\n", atomic_read_unchecked(&stats->path_bip)); -+ printk("line_febe : %d\n", atomic_read_unchecked(&stats->line_febe)); -+ printk("path_febe : %d\n", atomic_read_unchecked(&stats->path_febe)); -+ printk("corr_hcs : %d\n", atomic_read_unchecked(&stats->corr_hcs)); -+ printk("uncorr_hcs : %d\n", atomic_read_unchecked(&stats->uncorr_hcs)); -+ printk("tx_cells : %d\n", atomic_read_unchecked(&stats->tx_cells)); -+ printk("rx_cells : %d\n", atomic_read_unchecked(&stats->rx_cells)); - } - ia_cmds.status = 0; - break; -@@ -2914,7 +2914,7 @@ static int ia_pkt_tx (struct atm_vcc *vc - if ((desc == 0) || (desc > iadev->num_tx_desc)) - { - IF_ERR(printk(DEV_LABEL "invalid desc for send: %d\n", desc);) -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - if (vcc->pop) - vcc->pop(vcc, skb); - else -@@ -3019,14 +3019,14 @@ static int ia_pkt_tx (struct atm_vcc *vc - ATM_DESC(skb) = vcc->vci; - skb_queue_tail(&iadev->tx_dma_q, skb); - -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - iadev->tx_pkt_cnt++; - /* Increment transaction counter */ - writel(2, iadev->dma+IPHASE5575_TX_COUNTER); - - #if 0 - /* add flow control logic */ -- if (atomic_read(&vcc->stats->tx) % 20 == 0) { -+ if (atomic_read_unchecked(&vcc->stats->tx) % 20 == 0) { - if (iavcc->vc_desc_cnt > 10) { - vcc->tx_quota = vcc->tx_quota * 3 / 4; - printk("Tx1: vcc->tx_quota = %d \n", (u32)vcc->tx_quota ); -diff -urNp linux-3.0.4/drivers/atm/lanai.c linux-3.0.4/drivers/atm/lanai.c ---- linux-3.0.4/drivers/atm/lanai.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/lanai.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1303,7 +1303,7 @@ static void lanai_send_one_aal5(struct l - vcc_tx_add_aal5_trailer(lvcc, skb->len, 0, 0); - lanai_endtx(lanai, lvcc); - lanai_free_skb(lvcc->tx.atmvcc, skb); -- atomic_inc(&lvcc->tx.atmvcc->stats->tx); -+ atomic_inc_unchecked(&lvcc->tx.atmvcc->stats->tx); - } - - /* Try to fill the buffer - don't call unless there is backlog */ -@@ -1426,7 +1426,7 @@ static void vcc_rx_aal5(struct lanai_vcc - ATM_SKB(skb)->vcc = lvcc->rx.atmvcc; - __net_timestamp(skb); - lvcc->rx.atmvcc->push(lvcc->rx.atmvcc, skb); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx); - out: - lvcc->rx.buf.ptr = end; - cardvcc_write(lvcc, endptr, vcc_rxreadptr); -@@ -1668,7 +1668,7 @@ static int handle_service(struct lanai_d - DPRINTK("(itf %d) got RX service entry 0x%X for non-AAL5 " - "vcc %d\n", lanai->number, (unsigned int) s, vci); - lanai->stats.service_rxnotaal5++; -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - return 0; - } - if (likely(!(s & (SERVICE_TRASH | SERVICE_STREAM | SERVICE_CRCERR)))) { -@@ -1680,7 +1680,7 @@ static int handle_service(struct lanai_d - int bytes; - read_unlock(&vcc_sklist_lock); - DPRINTK("got trashed rx pdu on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_trash++; - bytes = (SERVICE_GET_END(s) * 16) - - (((unsigned long) lvcc->rx.buf.ptr) - -@@ -1692,7 +1692,7 @@ static int handle_service(struct lanai_d - } - if (s & SERVICE_STREAM) { - read_unlock(&vcc_sklist_lock); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_stream++; - printk(KERN_ERR DEV_LABEL "(itf %d): Got AAL5 stream " - "PDU on VCI %d!\n", lanai->number, vci); -@@ -1700,7 +1700,7 @@ static int handle_service(struct lanai_d - return 0; - } - DPRINTK("got rx crc error on vci %d\n", vci); -- atomic_inc(&lvcc->rx.atmvcc->stats->rx_err); -+ atomic_inc_unchecked(&lvcc->rx.atmvcc->stats->rx_err); - lvcc->stats.x.aal5.service_rxcrc++; - lvcc->rx.buf.ptr = &lvcc->rx.buf.start[SERVICE_GET_END(s) * 4]; - cardvcc_write(lvcc, SERVICE_GET_END(s), vcc_rxreadptr); -diff -urNp linux-3.0.4/drivers/atm/nicstar.c linux-3.0.4/drivers/atm/nicstar.c ---- linux-3.0.4/drivers/atm/nicstar.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/nicstar.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1654,7 +1654,7 @@ static int ns_send(struct atm_vcc *vcc, - if ((vc = (vc_map *) vcc->dev_data) == NULL) { - printk("nicstar%d: vcc->dev_data == NULL on ns_send().\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1662,7 +1662,7 @@ static int ns_send(struct atm_vcc *vcc, - if (!vc->tx) { - printk("nicstar%d: Trying to transmit on a non-tx VC.\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1670,14 +1670,14 @@ static int ns_send(struct atm_vcc *vcc, - if (vcc->qos.aal != ATM_AAL5 && vcc->qos.aal != ATM_AAL0) { - printk("nicstar%d: Only AAL0 and AAL5 are supported.\n", - card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } - - if (skb_shinfo(skb)->nr_frags != 0) { - printk("nicstar%d: No scatter-gather yet.\n", card->index); -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EINVAL; - } -@@ -1725,11 +1725,11 @@ static int ns_send(struct atm_vcc *vcc, - } - - if (push_scqe(card, vc, scq, &scqe, skb) != 0) { -- atomic_inc(&vcc->stats->tx_err); -+ atomic_inc_unchecked(&vcc->stats->tx_err); - dev_kfree_skb_any(skb); - return -EIO; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - return 0; - } -@@ -2046,14 +2046,14 @@ static void dequeue_rx(ns_dev * card, ns - printk - ("nicstar%d: Can't allocate buffers for aal0.\n", - card->index); -- atomic_add(i, &vcc->stats->rx_drop); -+ atomic_add_unchecked(i, &vcc->stats->rx_drop); - break; - } - if (!atm_charge(vcc, sb->truesize)) { - RXPRINTK - ("nicstar%d: atm_charge() dropped aal0 packets.\n", - card->index); -- atomic_add(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ -+ atomic_add_unchecked(i - 1, &vcc->stats->rx_drop); /* already increased by 1 */ - dev_kfree_skb_any(sb); - break; - } -@@ -2068,7 +2068,7 @@ static void dequeue_rx(ns_dev * card, ns - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - cell += ATM_CELL_PAYLOAD; - } - -@@ -2085,7 +2085,7 @@ static void dequeue_rx(ns_dev * card, ns - if (iovb == NULL) { - printk("nicstar%d: Out of iovec buffers.\n", - card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_rx_buf(card, skb); - return; - } -@@ -2109,7 +2109,7 @@ static void dequeue_rx(ns_dev * card, ns - small or large buffer itself. */ - } else if (NS_PRV_IOVCNT(iovb) >= NS_MAX_IOVECS) { - printk("nicstar%d: received too big AAL5 SDU.\n", card->index); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_MAX_IOVECS); - NS_PRV_IOVCNT(iovb) = 0; -@@ -2129,7 +2129,7 @@ static void dequeue_rx(ns_dev * card, ns - ("nicstar%d: Expected a small buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_rx_buf(card, skb); - vc->rx_iov = NULL; - recycle_iov_buf(card, iovb); -@@ -2142,7 +2142,7 @@ static void dequeue_rx(ns_dev * card, ns - ("nicstar%d: Expected a large buffer, and this is not one.\n", - card->index); - which_list(card, skb); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_PRV_IOVCNT(iovb)); - vc->rx_iov = NULL; -@@ -2165,7 +2165,7 @@ static void dequeue_rx(ns_dev * card, ns - printk(" - PDU size mismatch.\n"); - else - printk(".\n"); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - recycle_iovec_rx_bufs(card, (struct iovec *)iovb->data, - NS_PRV_IOVCNT(iovb)); - vc->rx_iov = NULL; -@@ -2179,7 +2179,7 @@ static void dequeue_rx(ns_dev * card, ns - /* skb points to a small buffer */ - if (!atm_charge(vcc, skb->truesize)) { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - skb_put(skb, len); - dequeue_sm_buf(card, skb); -@@ -2189,7 +2189,7 @@ static void dequeue_rx(ns_dev * card, ns - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } else if (NS_PRV_IOVCNT(iovb) == 2) { /* One small plus one large buffer */ - struct sk_buff *sb; -@@ -2200,7 +2200,7 @@ static void dequeue_rx(ns_dev * card, ns - if (len <= NS_SMBUFSIZE) { - if (!atm_charge(vcc, sb->truesize)) { - push_rxbufs(card, sb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - skb_put(sb, len); - dequeue_sm_buf(card, sb); -@@ -2210,7 +2210,7 @@ static void dequeue_rx(ns_dev * card, ns - ATM_SKB(sb)->vcc = vcc; - __net_timestamp(sb); - vcc->push(vcc, sb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, skb); -@@ -2219,7 +2219,7 @@ static void dequeue_rx(ns_dev * card, ns - - if (!atm_charge(vcc, skb->truesize)) { - push_rxbufs(card, skb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - dequeue_lg_buf(card, skb); - #ifdef NS_USE_DESTRUCTORS -@@ -2232,7 +2232,7 @@ static void dequeue_rx(ns_dev * card, ns - ATM_SKB(skb)->vcc = vcc; - __net_timestamp(skb); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - - push_rxbufs(card, sb); -@@ -2253,7 +2253,7 @@ static void dequeue_rx(ns_dev * card, ns - printk - ("nicstar%d: Out of huge buffers.\n", - card->index); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - recycle_iovec_rx_bufs(card, - (struct iovec *) - iovb->data, -@@ -2304,7 +2304,7 @@ static void dequeue_rx(ns_dev * card, ns - card->hbpool.count++; - } else - dev_kfree_skb_any(hb); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - } else { - /* Copy the small buffer to the huge buffer */ - sb = (struct sk_buff *)iov->iov_base; -@@ -2341,7 +2341,7 @@ static void dequeue_rx(ns_dev * card, ns - #endif /* NS_USE_DESTRUCTORS */ - __net_timestamp(hb); - vcc->push(vcc, hb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - } - -diff -urNp linux-3.0.4/drivers/atm/solos-pci.c linux-3.0.4/drivers/atm/solos-pci.c ---- linux-3.0.4/drivers/atm/solos-pci.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/solos-pci.c 2011-08-23 21:48:14.000000000 -0400 -@@ -714,7 +714,7 @@ void solos_bh(unsigned long card_arg) - } - atm_charge(vcc, skb->truesize); - vcc->push(vcc, skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - break; - - case PKT_STATUS: -@@ -899,6 +899,8 @@ static int print_buffer(struct sk_buff * - char msg[500]; - char item[10]; - -+ pax_track_stack(); -+ - len = buf->len; - for (i = 0; i < len; i++){ - if(i % 8 == 0) -@@ -1008,7 +1010,7 @@ static uint32_t fpga_tx(struct solos_car - vcc = SKB_CB(oldskb)->vcc; - - if (vcc) { -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - solos_pop(vcc, oldskb); - } else - dev_kfree_skb_irq(oldskb); -diff -urNp linux-3.0.4/drivers/atm/suni.c linux-3.0.4/drivers/atm/suni.c ---- linux-3.0.4/drivers/atm/suni.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/suni.c 2011-08-23 21:47:55.000000000 -0400 -@@ -50,8 +50,8 @@ static DEFINE_SPINLOCK(sunis_lock); - - - #define ADD_LIMITED(s,v) \ -- atomic_add((v),&stats->s); \ -- if (atomic_read(&stats->s) < 0) atomic_set(&stats->s,INT_MAX); -+ atomic_add_unchecked((v),&stats->s); \ -+ if (atomic_read_unchecked(&stats->s) < 0) atomic_set_unchecked(&stats->s,INT_MAX); - - - static void suni_hz(unsigned long from_timer) -diff -urNp linux-3.0.4/drivers/atm/uPD98402.c linux-3.0.4/drivers/atm/uPD98402.c ---- linux-3.0.4/drivers/atm/uPD98402.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/uPD98402.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ static int fetch_stats(struct atm_dev *d - struct sonet_stats tmp; - int error = 0; - -- atomic_add(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); -+ atomic_add_unchecked(GET(HECCT),&PRIV(dev)->sonet_stats.uncorr_hcs); - sonet_copy_stats(&PRIV(dev)->sonet_stats,&tmp); - if (arg) error = copy_to_user(arg,&tmp,sizeof(tmp)); - if (zero && !error) { -@@ -161,9 +161,9 @@ static int uPD98402_ioctl(struct atm_dev - - - #define ADD_LIMITED(s,v) \ -- { atomic_add(GET(v),&PRIV(dev)->sonet_stats.s); \ -- if (atomic_read(&PRIV(dev)->sonet_stats.s) < 0) \ -- atomic_set(&PRIV(dev)->sonet_stats.s,INT_MAX); } -+ { atomic_add_unchecked(GET(v),&PRIV(dev)->sonet_stats.s); \ -+ if (atomic_read_unchecked(&PRIV(dev)->sonet_stats.s) < 0) \ -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.s,INT_MAX); } - - - static void stat_event(struct atm_dev *dev) -@@ -194,7 +194,7 @@ static void uPD98402_int(struct atm_dev - if (reason & uPD98402_INT_PFM) stat_event(dev); - if (reason & uPD98402_INT_PCO) { - (void) GET(PCOCR); /* clear interrupt cause */ -- atomic_add(GET(HECCT), -+ atomic_add_unchecked(GET(HECCT), - &PRIV(dev)->sonet_stats.uncorr_hcs); - } - if ((reason & uPD98402_INT_RFO) && -@@ -222,9 +222,9 @@ static int uPD98402_start(struct atm_dev - PUT(~(uPD98402_INT_PFM | uPD98402_INT_ALM | uPD98402_INT_RFO | - uPD98402_INT_LOS),PIMR); /* enable them */ - (void) fetch_stats(dev,NULL,1); /* clear kernel counters */ -- atomic_set(&PRIV(dev)->sonet_stats.corr_hcs,-1); -- atomic_set(&PRIV(dev)->sonet_stats.tx_cells,-1); -- atomic_set(&PRIV(dev)->sonet_stats.rx_cells,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.corr_hcs,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.tx_cells,-1); -+ atomic_set_unchecked(&PRIV(dev)->sonet_stats.rx_cells,-1); - return 0; - } - -diff -urNp linux-3.0.4/drivers/atm/zatm.c linux-3.0.4/drivers/atm/zatm.c ---- linux-3.0.4/drivers/atm/zatm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/atm/zatm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -459,7 +459,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy - } - if (!size) { - dev_kfree_skb_irq(skb); -- if (vcc) atomic_inc(&vcc->stats->rx_err); -+ if (vcc) atomic_inc_unchecked(&vcc->stats->rx_err); - continue; - } - if (!atm_charge(vcc,skb->truesize)) { -@@ -469,7 +469,7 @@ printk("dummy: 0x%08lx, 0x%08lx\n",dummy - skb->len = size; - ATM_SKB(skb)->vcc = vcc; - vcc->push(vcc,skb); -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - } - zout(pos & 0xffff,MTA(mbx)); - #if 0 /* probably a stupid idea */ -@@ -733,7 +733,7 @@ if (*ZATM_PRV_DSC(skb) != (uPD98401_TXPD - skb_queue_head(&zatm_vcc->backlog,skb); - break; - } -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - wake_up(&zatm_vcc->tx_wait); - } - -diff -urNp linux-3.0.4/drivers/base/power/wakeup.c linux-3.0.4/drivers/base/power/wakeup.c ---- linux-3.0.4/drivers/base/power/wakeup.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/base/power/wakeup.c 2011-08-23 21:47:55.000000000 -0400 -@@ -29,14 +29,14 @@ bool events_check_enabled; - * They need to be modified together atomically, so it's better to use one - * atomic variable to hold them both. - */ --static atomic_t combined_event_count = ATOMIC_INIT(0); -+static atomic_unchecked_t combined_event_count = ATOMIC_INIT(0); - - #define IN_PROGRESS_BITS (sizeof(int) * 4) - #define MAX_IN_PROGRESS ((1 << IN_PROGRESS_BITS) - 1) - - static void split_counters(unsigned int *cnt, unsigned int *inpr) - { -- unsigned int comb = atomic_read(&combined_event_count); -+ unsigned int comb = atomic_read_unchecked(&combined_event_count); - - *cnt = (comb >> IN_PROGRESS_BITS); - *inpr = comb & MAX_IN_PROGRESS; -@@ -350,7 +350,7 @@ static void wakeup_source_activate(struc - ws->last_time = ktime_get(); - - /* Increment the counter of events in progress. */ -- atomic_inc(&combined_event_count); -+ atomic_inc_unchecked(&combined_event_count); - } - - /** -@@ -440,7 +440,7 @@ static void wakeup_source_deactivate(str - * Increment the counter of registered wakeup events and decrement the - * couter of wakeup events in progress simultaneously. - */ -- atomic_add(MAX_IN_PROGRESS, &combined_event_count); -+ atomic_add_unchecked(MAX_IN_PROGRESS, &combined_event_count); - } - - /** -diff -urNp linux-3.0.4/drivers/block/cciss.c linux-3.0.4/drivers/block/cciss.c ---- linux-3.0.4/drivers/block/cciss.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cciss.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1179,6 +1179,8 @@ static int cciss_ioctl32_passthru(struct - int err; - u32 cp; - -+ memset(&arg64, 0, sizeof(arg64)); -+ - err = 0; - err |= - copy_from_user(&arg64.LUN_info, &arg32->LUN_info, -@@ -2986,7 +2988,7 @@ static void start_io(ctlr_info_t *h) - while (!list_empty(&h->reqQ)) { - c = list_entry(h->reqQ.next, CommandList_struct, list); - /* can't do anything if fifo is full */ -- if ((h->access.fifo_full(h))) { -+ if ((h->access->fifo_full(h))) { - dev_warn(&h->pdev->dev, "fifo full\n"); - break; - } -@@ -2996,7 +2998,7 @@ static void start_io(ctlr_info_t *h) - h->Qdepth--; - - /* Tell the controller execute command */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Put job onto the completed Q */ - addQ(&h->cmpQ, c); -@@ -3422,17 +3424,17 @@ startio: - - static inline unsigned long get_next_completion(ctlr_info_t *h) - { -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - } - - static inline int interrupt_pending(ctlr_info_t *h) - { -- return h->access.intr_pending(h); -+ return h->access->intr_pending(h); - } - - static inline long interrupt_not_for_us(ctlr_info_t *h) - { -- return ((h->access.intr_pending(h) == 0) || -+ return ((h->access->intr_pending(h) == 0) || - (h->interrupts_enabled == 0)); - } - -@@ -3465,7 +3467,7 @@ static inline u32 next_command(ctlr_info - u32 a; - - if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - - if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { - a = *(h->reply_pool_head); /* Next cmd in ring buffer */ -@@ -4020,7 +4022,7 @@ static void __devinit cciss_put_controll - trans_support & CFGTBL_Trans_use_short_tags); - - /* Change the access methods to the performant access methods */ -- h->access = SA5_performant_access; -+ h->access = &SA5_performant_access; - h->transMethod = CFGTBL_Trans_Performant; - - return; -@@ -4292,7 +4294,7 @@ static int __devinit cciss_pci_init(ctlr - if (prod_index < 0) - return -ENODEV; - h->product_name = products[prod_index].product_name; -- h->access = *(products[prod_index].access); -+ h->access = products[prod_index].access; - - if (cciss_board_disabled(h)) { - dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); -@@ -5002,7 +5004,7 @@ reinit_after_soft_reset: - } - - /* make sure the board interrupts are off */ -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - rc = cciss_request_irq(h, do_cciss_msix_intr, do_cciss_intx); - if (rc) - goto clean2; -@@ -5054,7 +5056,7 @@ reinit_after_soft_reset: - * fake ones to scoop up any residual completions. - */ - spin_lock_irqsave(&h->lock, flags); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - spin_unlock_irqrestore(&h->lock, flags); - free_irq(h->intr[PERF_MODE_INT], h); - rc = cciss_request_irq(h, cciss_msix_discard_completions, -@@ -5074,9 +5076,9 @@ reinit_after_soft_reset: - dev_info(&h->pdev->dev, "Board READY.\n"); - dev_info(&h->pdev->dev, - "Waiting for stale completions to drain.\n"); -- h->access.set_intr_mask(h, CCISS_INTR_ON); -+ h->access->set_intr_mask(h, CCISS_INTR_ON); - msleep(10000); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - - rc = controller_reset_failed(h->cfgtable); - if (rc) -@@ -5099,7 +5101,7 @@ reinit_after_soft_reset: - cciss_scsi_setup(h); - - /* Turn the interrupts on so we can service requests */ -- h->access.set_intr_mask(h, CCISS_INTR_ON); -+ h->access->set_intr_mask(h, CCISS_INTR_ON); - - /* Get the firmware version */ - inq_buff = kzalloc(sizeof(InquiryData_struct), GFP_KERNEL); -@@ -5171,7 +5173,7 @@ static void cciss_shutdown(struct pci_de - kfree(flush_buf); - if (return_code != IO_OK) - dev_warn(&h->pdev->dev, "Error flushing cache\n"); -- h->access.set_intr_mask(h, CCISS_INTR_OFF); -+ h->access->set_intr_mask(h, CCISS_INTR_OFF); - free_irq(h->intr[PERF_MODE_INT], h); - } - -diff -urNp linux-3.0.4/drivers/block/cciss.h linux-3.0.4/drivers/block/cciss.h ---- linux-3.0.4/drivers/block/cciss.h 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/block/cciss.h 2011-08-23 21:47:55.000000000 -0400 -@@ -100,7 +100,7 @@ struct ctlr_info - /* information about each logical volume */ - drive_info_struct *drv[CISS_MAX_LUN]; - -- struct access_method access; -+ struct access_method *access; - - /* queue and queue Info */ - struct list_head reqQ; -diff -urNp linux-3.0.4/drivers/block/cpqarray.c linux-3.0.4/drivers/block/cpqarray.c ---- linux-3.0.4/drivers/block/cpqarray.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cpqarray.c 2011-08-23 21:48:14.000000000 -0400 -@@ -404,7 +404,7 @@ static int __devinit cpqarray_register_c - if (register_blkdev(COMPAQ_SMART2_MAJOR+i, hba[i]->devname)) { - goto Enomem4; - } -- hba[i]->access.set_intr_mask(hba[i], 0); -+ hba[i]->access->set_intr_mask(hba[i], 0); - if (request_irq(hba[i]->intr, do_ida_intr, - IRQF_DISABLED|IRQF_SHARED, hba[i]->devname, hba[i])) - { -@@ -459,7 +459,7 @@ static int __devinit cpqarray_register_c - add_timer(&hba[i]->timer); - - /* Enable IRQ now that spinlock and rate limit timer are set up */ -- hba[i]->access.set_intr_mask(hba[i], FIFO_NOT_EMPTY); -+ hba[i]->access->set_intr_mask(hba[i], FIFO_NOT_EMPTY); - - for(j=0; jproduct_name = products[i].product_name; -- c->access = *(products[i].access); -+ c->access = products[i].access; - break; - } - } -@@ -792,7 +792,7 @@ static int __devinit cpqarray_eisa_detec - hba[ctlr]->intr = intr; - sprintf(hba[ctlr]->devname, "ida%d", nr_ctlr); - hba[ctlr]->product_name = products[j].product_name; -- hba[ctlr]->access = *(products[j].access); -+ hba[ctlr]->access = products[j].access; - hba[ctlr]->ctlr = ctlr; - hba[ctlr]->board_id = board_id; - hba[ctlr]->pci_dev = NULL; /* not PCI */ -@@ -911,6 +911,8 @@ static void do_ida_request(struct reques - struct scatterlist tmp_sg[SG_MAX]; - int i, dir, seg; - -+ pax_track_stack(); -+ - queue_next: - creq = blk_peek_request(q); - if (!creq) -@@ -980,7 +982,7 @@ static void start_io(ctlr_info_t *h) - - while((c = h->reqQ) != NULL) { - /* Can't do anything if we're busy */ -- if (h->access.fifo_full(h) == 0) -+ if (h->access->fifo_full(h) == 0) - return; - - /* Get the first entry from the request Q */ -@@ -988,7 +990,7 @@ static void start_io(ctlr_info_t *h) - h->Qdepth--; - - /* Tell the controller to do our bidding */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Get onto the completion Q */ - addQ(&h->cmpQ, c); -@@ -1050,7 +1052,7 @@ static irqreturn_t do_ida_intr(int irq, - unsigned long flags; - __u32 a,a1; - -- istat = h->access.intr_pending(h); -+ istat = h->access->intr_pending(h); - /* Is this interrupt for us? */ - if (istat == 0) - return IRQ_NONE; -@@ -1061,7 +1063,7 @@ static irqreturn_t do_ida_intr(int irq, - */ - spin_lock_irqsave(IDA_LOCK(h->ctlr), flags); - if (istat & FIFO_NOT_EMPTY) { -- while((a = h->access.command_completed(h))) { -+ while((a = h->access->command_completed(h))) { - a1 = a; a &= ~3; - if ((c = h->cmpQ) == NULL) - { -@@ -1449,11 +1451,11 @@ static int sendcmd( - /* - * Disable interrupt - */ -- info_p->access.set_intr_mask(info_p, 0); -+ info_p->access->set_intr_mask(info_p, 0); - /* Make sure there is room in the command FIFO */ - /* Actually it should be completely empty at this time. */ - for (i = 200000; i > 0; i--) { -- temp = info_p->access.fifo_full(info_p); -+ temp = info_p->access->fifo_full(info_p); - if (temp != 0) { - break; - } -@@ -1466,7 +1468,7 @@ DBG( - /* - * Send the cmd - */ -- info_p->access.submit_command(info_p, c); -+ info_p->access->submit_command(info_p, c); - complete = pollcomplete(ctlr); - - pci_unmap_single(info_p->pci_dev, (dma_addr_t) c->req.sg[0].addr, -@@ -1549,9 +1551,9 @@ static int revalidate_allvol(ctlr_info_t - * we check the new geometry. Then turn interrupts back on when - * we're done. - */ -- host->access.set_intr_mask(host, 0); -+ host->access->set_intr_mask(host, 0); - getgeometry(ctlr); -- host->access.set_intr_mask(host, FIFO_NOT_EMPTY); -+ host->access->set_intr_mask(host, FIFO_NOT_EMPTY); - - for(i=0; i 0; i--) { -- done = hba[ctlr]->access.command_completed(hba[ctlr]); -+ done = hba[ctlr]->access->command_completed(hba[ctlr]); - if (done == 0) { - udelay(10); /* a short fixed delay */ - } else -diff -urNp linux-3.0.4/drivers/block/cpqarray.h linux-3.0.4/drivers/block/cpqarray.h ---- linux-3.0.4/drivers/block/cpqarray.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/cpqarray.h 2011-08-23 21:47:55.000000000 -0400 -@@ -99,7 +99,7 @@ struct ctlr_info { - drv_info_t drv[NWD]; - struct proc_dir_entry *proc; - -- struct access_method access; -+ struct access_method *access; - - cmdlist_t *reqQ; - cmdlist_t *cmpQ; -diff -urNp linux-3.0.4/drivers/block/DAC960.c linux-3.0.4/drivers/block/DAC960.c ---- linux-3.0.4/drivers/block/DAC960.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/DAC960.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1980,6 +1980,8 @@ static bool DAC960_V1_ReadDeviceConfigur - unsigned long flags; - int Channel, TargetID; - -+ pax_track_stack(); -+ - if (!init_dma_loaf(Controller->PCIDevice, &local_dma, - DAC960_V1_MaxChannels*(sizeof(DAC960_V1_DCDB_T) + - sizeof(DAC960_SCSI_Inquiry_T) + -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_int.h linux-3.0.4/drivers/block/drbd/drbd_int.h ---- linux-3.0.4/drivers/block/drbd/drbd_int.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_int.h 2011-08-23 21:47:55.000000000 -0400 -@@ -737,7 +737,7 @@ struct drbd_request; - struct drbd_epoch { - struct list_head list; - unsigned int barrier_nr; -- atomic_t epoch_size; /* increased on every request added. */ -+ atomic_unchecked_t epoch_size; /* increased on every request added. */ - atomic_t active; /* increased on every req. added, and dec on every finished. */ - unsigned long flags; - }; -@@ -1109,7 +1109,7 @@ struct drbd_conf { - void *int_dig_in; - void *int_dig_vv; - wait_queue_head_t seq_wait; -- atomic_t packet_seq; -+ atomic_unchecked_t packet_seq; - unsigned int peer_seq; - spinlock_t peer_seq_lock; - unsigned int minor; -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_main.c linux-3.0.4/drivers/block/drbd/drbd_main.c ---- linux-3.0.4/drivers/block/drbd/drbd_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_main.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2397,7 +2397,7 @@ static int _drbd_send_ack(struct drbd_co - p.sector = sector; - p.block_id = block_id; - p.blksize = blksize; -- p.seq_num = cpu_to_be32(atomic_add_return(1, &mdev->packet_seq)); -+ p.seq_num = cpu_to_be32(atomic_add_return_unchecked(1, &mdev->packet_seq)); - - if (!mdev->meta.socket || mdev->state.conn < C_CONNECTED) - return false; -@@ -2696,7 +2696,7 @@ int drbd_send_dblock(struct drbd_conf *m - p.sector = cpu_to_be64(req->sector); - p.block_id = (unsigned long)req; - p.seq_num = cpu_to_be32(req->seq_num = -- atomic_add_return(1, &mdev->packet_seq)); -+ atomic_add_return_unchecked(1, &mdev->packet_seq)); - - dp_flags = bio_flags_to_wire(mdev, req->master_bio->bi_rw); - -@@ -2981,7 +2981,7 @@ void drbd_init_set_defaults(struct drbd_ - atomic_set(&mdev->unacked_cnt, 0); - atomic_set(&mdev->local_cnt, 0); - atomic_set(&mdev->net_cnt, 0); -- atomic_set(&mdev->packet_seq, 0); -+ atomic_set_unchecked(&mdev->packet_seq, 0); - atomic_set(&mdev->pp_in_use, 0); - atomic_set(&mdev->pp_in_use_by_net, 0); - atomic_set(&mdev->rs_sect_in, 0); -@@ -3063,8 +3063,8 @@ void drbd_mdev_cleanup(struct drbd_conf - mdev->receiver.t_state); - - /* no need to lock it, I'm the only thread alive */ -- if (atomic_read(&mdev->current_epoch->epoch_size) != 0) -- dev_err(DEV, "epoch_size:%d\n", atomic_read(&mdev->current_epoch->epoch_size)); -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size) != 0) -+ dev_err(DEV, "epoch_size:%d\n", atomic_read_unchecked(&mdev->current_epoch->epoch_size)); - mdev->al_writ_cnt = - mdev->bm_writ_cnt = - mdev->read_cnt = -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_nl.c linux-3.0.4/drivers/block/drbd/drbd_nl.c ---- linux-3.0.4/drivers/block/drbd/drbd_nl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_nl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2359,7 +2359,7 @@ static void drbd_connector_callback(stru - module_put(THIS_MODULE); - } - --static atomic_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ -+static atomic_unchecked_t drbd_nl_seq = ATOMIC_INIT(2); /* two. */ - - static unsigned short * - __tl_add_blob(unsigned short *tl, enum drbd_tags tag, const void *data, -@@ -2430,7 +2430,7 @@ void drbd_bcast_state(struct drbd_conf * - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -@@ -2462,7 +2462,7 @@ void drbd_bcast_ev_helper(struct drbd_co - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -@@ -2540,7 +2540,7 @@ void drbd_bcast_ee(struct drbd_conf *mde - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1,&drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1,&drbd_nl_seq); - cn_reply->ack = 0; // not used here. - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char*)tl - (char*)reply->tag_list); -@@ -2579,7 +2579,7 @@ void drbd_bcast_sync_progress(struct drb - cn_reply->id.idx = CN_IDX_DRBD; - cn_reply->id.val = CN_VAL_DRBD; - -- cn_reply->seq = atomic_add_return(1, &drbd_nl_seq); -+ cn_reply->seq = atomic_add_return_unchecked(1, &drbd_nl_seq); - cn_reply->ack = 0; /* not used here. */ - cn_reply->len = sizeof(struct drbd_nl_cfg_reply) + - (int)((char *)tl - (char *)reply->tag_list); -diff -urNp linux-3.0.4/drivers/block/drbd/drbd_receiver.c linux-3.0.4/drivers/block/drbd/drbd_receiver.c ---- linux-3.0.4/drivers/block/drbd/drbd_receiver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/drbd/drbd_receiver.c 2011-08-23 21:47:55.000000000 -0400 -@@ -894,7 +894,7 @@ retry: - sock->sk->sk_sndtimeo = mdev->net_conf->timeout*HZ/10; - sock->sk->sk_rcvtimeo = MAX_SCHEDULE_TIMEOUT; - -- atomic_set(&mdev->packet_seq, 0); -+ atomic_set_unchecked(&mdev->packet_seq, 0); - mdev->peer_seq = 0; - - drbd_thread_start(&mdev->asender); -@@ -985,7 +985,7 @@ static enum finish_epoch drbd_may_finish - do { - next_epoch = NULL; - -- epoch_size = atomic_read(&epoch->epoch_size); -+ epoch_size = atomic_read_unchecked(&epoch->epoch_size); - - switch (ev & ~EV_CLEANUP) { - case EV_PUT: -@@ -1020,7 +1020,7 @@ static enum finish_epoch drbd_may_finish - rv = FE_DESTROYED; - } else { - epoch->flags = 0; -- atomic_set(&epoch->epoch_size, 0); -+ atomic_set_unchecked(&epoch->epoch_size, 0); - /* atomic_set(&epoch->active, 0); is already zero */ - if (rv == FE_STILL_LIVE) - rv = FE_RECYCLED; -@@ -1191,14 +1191,14 @@ static int receive_Barrier(struct drbd_c - drbd_wait_ee_list_empty(mdev, &mdev->active_ee); - drbd_flush(mdev); - -- if (atomic_read(&mdev->current_epoch->epoch_size)) { -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { - epoch = kmalloc(sizeof(struct drbd_epoch), GFP_NOIO); - if (epoch) - break; - } - - epoch = mdev->current_epoch; -- wait_event(mdev->ee_wait, atomic_read(&epoch->epoch_size) == 0); -+ wait_event(mdev->ee_wait, atomic_read_unchecked(&epoch->epoch_size) == 0); - - D_ASSERT(atomic_read(&epoch->active) == 0); - D_ASSERT(epoch->flags == 0); -@@ -1210,11 +1210,11 @@ static int receive_Barrier(struct drbd_c - } - - epoch->flags = 0; -- atomic_set(&epoch->epoch_size, 0); -+ atomic_set_unchecked(&epoch->epoch_size, 0); - atomic_set(&epoch->active, 0); - - spin_lock(&mdev->epoch_lock); -- if (atomic_read(&mdev->current_epoch->epoch_size)) { -+ if (atomic_read_unchecked(&mdev->current_epoch->epoch_size)) { - list_add(&epoch->list, &mdev->current_epoch->list); - mdev->current_epoch = epoch; - mdev->epochs++; -@@ -1663,7 +1663,7 @@ static int receive_Data(struct drbd_conf - spin_unlock(&mdev->peer_seq_lock); - - drbd_send_ack_dp(mdev, P_NEG_ACK, p, data_size); -- atomic_inc(&mdev->current_epoch->epoch_size); -+ atomic_inc_unchecked(&mdev->current_epoch->epoch_size); - return drbd_drain_block(mdev, data_size); - } - -@@ -1689,7 +1689,7 @@ static int receive_Data(struct drbd_conf - - spin_lock(&mdev->epoch_lock); - e->epoch = mdev->current_epoch; -- atomic_inc(&e->epoch->epoch_size); -+ atomic_inc_unchecked(&e->epoch->epoch_size); - atomic_inc(&e->epoch->active); - spin_unlock(&mdev->epoch_lock); - -@@ -3885,7 +3885,7 @@ static void drbd_disconnect(struct drbd_ - D_ASSERT(list_empty(&mdev->done_ee)); - - /* ok, no more ee's on the fly, it is safe to reset the epoch_size */ -- atomic_set(&mdev->current_epoch->epoch_size, 0); -+ atomic_set_unchecked(&mdev->current_epoch->epoch_size, 0); - D_ASSERT(list_empty(&mdev->current_epoch->list)); - } - -diff -urNp linux-3.0.4/drivers/block/nbd.c linux-3.0.4/drivers/block/nbd.c ---- linux-3.0.4/drivers/block/nbd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/block/nbd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -157,6 +157,8 @@ static int sock_xmit(struct nbd_device * - struct kvec iov; - sigset_t blocked, oldset; - -+ pax_track_stack(); -+ - if (unlikely(!sock)) { - printk(KERN_ERR "%s: Attempted %s on closed socket in sock_xmit\n", - lo->disk->disk_name, (send ? "send" : "recv")); -@@ -572,6 +574,8 @@ static void do_nbd_request(struct reques - static int __nbd_ioctl(struct block_device *bdev, struct nbd_device *lo, - unsigned int cmd, unsigned long arg) - { -+ pax_track_stack(); -+ - switch (cmd) { - case NBD_DISCONNECT: { - struct request sreq; -diff -urNp linux-3.0.4/drivers/char/agp/frontend.c linux-3.0.4/drivers/char/agp/frontend.c ---- linux-3.0.4/drivers/char/agp/frontend.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/agp/frontend.c 2011-08-23 21:47:55.000000000 -0400 -@@ -817,7 +817,7 @@ static int agpioc_reserve_wrap(struct ag - if (copy_from_user(&reserve, arg, sizeof(struct agp_region))) - return -EFAULT; - -- if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment)) -+ if ((unsigned) reserve.seg_count >= ~0U/sizeof(struct agp_segment_priv)) - return -EFAULT; - - client = agp_find_client_by_pid(reserve.pid); -diff -urNp linux-3.0.4/drivers/char/briq_panel.c linux-3.0.4/drivers/char/briq_panel.c ---- linux-3.0.4/drivers/char/briq_panel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/briq_panel.c 2011-08-23 21:48:14.000000000 -0400 -@@ -9,6 +9,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -34,6 +35,7 @@ static int vfd_is_open; - static unsigned char vfd[40]; - static int vfd_cursor; - static unsigned char ledpb, led; -+static DEFINE_MUTEX(vfd_mutex); - - static void update_vfd(void) - { -@@ -140,12 +142,15 @@ static ssize_t briq_panel_write(struct f - if (!vfd_is_open) - return -EBUSY; - -+ mutex_lock(&vfd_mutex); - for (;;) { - char c; - if (!indx) - break; -- if (get_user(c, buf)) -+ if (get_user(c, buf)) { -+ mutex_unlock(&vfd_mutex); - return -EFAULT; -+ } - if (esc) { - set_led(c); - esc = 0; -@@ -175,6 +180,7 @@ static ssize_t briq_panel_write(struct f - buf++; - } - update_vfd(); -+ mutex_unlock(&vfd_mutex); - - return len; - } -diff -urNp linux-3.0.4/drivers/char/genrtc.c linux-3.0.4/drivers/char/genrtc.c ---- linux-3.0.4/drivers/char/genrtc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/genrtc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -273,6 +273,7 @@ static int gen_rtc_ioctl(struct file *fi - switch (cmd) { - - case RTC_PLL_GET: -+ memset(&pll, 0, sizeof(pll)); - if (get_rtc_pll(&pll)) - return -EINVAL; - else -diff -urNp linux-3.0.4/drivers/char/hpet.c linux-3.0.4/drivers/char/hpet.c ---- linux-3.0.4/drivers/char/hpet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/hpet.c 2011-08-23 21:47:55.000000000 -0400 -@@ -572,7 +572,7 @@ static inline unsigned long hpet_time_di - } - - static int --hpet_ioctl_common(struct hpet_dev *devp, int cmd, unsigned long arg, -+hpet_ioctl_common(struct hpet_dev *devp, unsigned int cmd, unsigned long arg, - struct hpet_info *info) - { - struct hpet_timer __iomem *timer; -diff -urNp linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c ---- linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/ipmi/ipmi_msghandler.c 2011-08-23 21:48:14.000000000 -0400 -@@ -415,7 +415,7 @@ struct ipmi_smi { - struct proc_dir_entry *proc_dir; - char proc_dir_name[10]; - -- atomic_t stats[IPMI_NUM_STATS]; -+ atomic_unchecked_t stats[IPMI_NUM_STATS]; - - /* - * run_to_completion duplicate of smb_info, smi_info -@@ -448,9 +448,9 @@ static DEFINE_MUTEX(smi_watchers_mutex); - - - #define ipmi_inc_stat(intf, stat) \ -- atomic_inc(&(intf)->stats[IPMI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(intf)->stats[IPMI_STAT_ ## stat]) - #define ipmi_get_stat(intf, stat) \ -- ((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat])) -+ ((unsigned int) atomic_read_unchecked(&(intf)->stats[IPMI_STAT_ ## stat])) - - static int is_lan_addr(struct ipmi_addr *addr) - { -@@ -2868,7 +2868,7 @@ int ipmi_register_smi(struct ipmi_smi_ha - INIT_LIST_HEAD(&intf->cmd_rcvrs); - init_waitqueue_head(&intf->waitq); - for (i = 0; i < IPMI_NUM_STATS; i++) -- atomic_set(&intf->stats[i], 0); -+ atomic_set_unchecked(&intf->stats[i], 0); - - intf->proc_dir = NULL; - -@@ -4220,6 +4220,8 @@ static void send_panic_events(char *str) - struct ipmi_smi_msg smi_msg; - struct ipmi_recv_msg recv_msg; - -+ pax_track_stack(); -+ - si = (struct ipmi_system_interface_addr *) &addr; - si->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE; - si->channel = IPMI_BMC_CHANNEL; -diff -urNp linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c ---- linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/ipmi/ipmi_si_intf.c 2011-08-23 21:47:55.000000000 -0400 -@@ -277,7 +277,7 @@ struct smi_info { - unsigned char slave_addr; - - /* Counters and things for the proc filesystem. */ -- atomic_t stats[SI_NUM_STATS]; -+ atomic_unchecked_t stats[SI_NUM_STATS]; - - struct task_struct *thread; - -@@ -286,9 +286,9 @@ struct smi_info { - }; - - #define smi_inc_stat(smi, stat) \ -- atomic_inc(&(smi)->stats[SI_STAT_ ## stat]) -+ atomic_inc_unchecked(&(smi)->stats[SI_STAT_ ## stat]) - #define smi_get_stat(smi, stat) \ -- ((unsigned int) atomic_read(&(smi)->stats[SI_STAT_ ## stat])) -+ ((unsigned int) atomic_read_unchecked(&(smi)->stats[SI_STAT_ ## stat])) - - #define SI_MAX_PARMS 4 - -@@ -3230,7 +3230,7 @@ static int try_smi_init(struct smi_info - atomic_set(&new_smi->req_events, 0); - new_smi->run_to_completion = 0; - for (i = 0; i < SI_NUM_STATS; i++) -- atomic_set(&new_smi->stats[i], 0); -+ atomic_set_unchecked(&new_smi->stats[i], 0); - - new_smi->interrupt_disabled = 1; - atomic_set(&new_smi->stop_operation, 0); -diff -urNp linux-3.0.4/drivers/char/Kconfig linux-3.0.4/drivers/char/Kconfig ---- linux-3.0.4/drivers/char/Kconfig 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/Kconfig 2011-08-23 21:48:14.000000000 -0400 -@@ -8,7 +8,8 @@ source "drivers/tty/Kconfig" - - config DEVKMEM - bool "/dev/kmem virtual device support" -- default y -+ default n -+ depends on !GRKERNSEC_KMEM - help - Say Y here if you want to support the /dev/kmem device. The - /dev/kmem device is rarely used, but can be used for certain -@@ -596,6 +597,7 @@ config DEVPORT - bool - depends on !M68K - depends on ISA || PCI -+ depends on !GRKERNSEC_KMEM - default y - - source "drivers/s390/char/Kconfig" -diff -urNp linux-3.0.4/drivers/char/mem.c linux-3.0.4/drivers/char/mem.c ---- linux-3.0.4/drivers/char/mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/mem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -18,6 +18,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -34,6 +35,10 @@ - # include - #endif - -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+extern struct file_operations grsec_fops; -+#endif -+ - static inline unsigned long size_inside_page(unsigned long start, - unsigned long size) - { -@@ -65,9 +70,13 @@ static inline int range_is_allowed(unsig - - while (cursor < to) { - if (!devmem_is_allowed(pfn)) { -+#ifdef CONFIG_GRKERNSEC_KMEM -+ gr_handle_mem_readwrite(from, to); -+#else - printk(KERN_INFO - "Program %s tried to access /dev/mem between %Lx->%Lx.\n", - current->comm, from, to); -+#endif - return 0; - } - cursor += PAGE_SIZE; -@@ -75,6 +84,11 @@ static inline int range_is_allowed(unsig - } - return 1; - } -+#elif defined(CONFIG_GRKERNSEC_KMEM) -+static inline int range_is_allowed(unsigned long pfn, unsigned long size) -+{ -+ return 0; -+} - #else - static inline int range_is_allowed(unsigned long pfn, unsigned long size) - { -@@ -117,6 +131,7 @@ static ssize_t read_mem(struct file *fil - - while (count > 0) { - unsigned long remaining; -+ char *temp; - - sz = size_inside_page(p, count); - -@@ -132,7 +147,23 @@ static ssize_t read_mem(struct file *fil - if (!ptr) - return -EFAULT; - -- remaining = copy_to_user(buf, ptr, sz); -+#ifdef CONFIG_PAX_USERCOPY -+ temp = kmalloc(sz, GFP_KERNEL); -+ if (!temp) { -+ unxlate_dev_mem_ptr(p, ptr); -+ return -ENOMEM; -+ } -+ memcpy(temp, ptr, sz); -+#else -+ temp = ptr; -+#endif -+ -+ remaining = copy_to_user(buf, temp, sz); -+ -+#ifdef CONFIG_PAX_USERCOPY -+ kfree(temp); -+#endif -+ - unxlate_dev_mem_ptr(p, ptr); - if (remaining) - return -EFAULT; -@@ -395,9 +426,8 @@ static ssize_t read_kmem(struct file *fi - size_t count, loff_t *ppos) - { - unsigned long p = *ppos; -- ssize_t low_count, read, sz; -+ ssize_t low_count, read, sz, err = 0; - char * kbuf; /* k-addr because vread() takes vmlist_lock rwlock */ -- int err = 0; - - read = 0; - if (p < (unsigned long) high_memory) { -@@ -419,6 +449,8 @@ static ssize_t read_kmem(struct file *fi - } - #endif - while (low_count > 0) { -+ char *temp; -+ - sz = size_inside_page(p, low_count); - - /* -@@ -428,7 +460,22 @@ static ssize_t read_kmem(struct file *fi - */ - kbuf = xlate_dev_kmem_ptr((char *)p); - -- if (copy_to_user(buf, kbuf, sz)) -+#ifdef CONFIG_PAX_USERCOPY -+ temp = kmalloc(sz, GFP_KERNEL); -+ if (!temp) -+ return -ENOMEM; -+ memcpy(temp, kbuf, sz); -+#else -+ temp = kbuf; -+#endif -+ -+ err = copy_to_user(buf, temp, sz); -+ -+#ifdef CONFIG_PAX_USERCOPY -+ kfree(temp); -+#endif -+ -+ if (err) - return -EFAULT; - buf += sz; - p += sz; -@@ -866,6 +913,9 @@ static const struct memdev { - #ifdef CONFIG_CRASH_DUMP - [12] = { "oldmem", 0, &oldmem_fops, NULL }, - #endif -+#if defined(CONFIG_GRKERNSEC) && !defined(CONFIG_GRKERNSEC_NO_RBAC) -+ [13] = { "grsec",S_IRUSR | S_IWUGO, &grsec_fops, NULL }, -+#endif - }; - - static int memory_open(struct inode *inode, struct file *filp) -diff -urNp linux-3.0.4/drivers/char/nvram.c linux-3.0.4/drivers/char/nvram.c ---- linux-3.0.4/drivers/char/nvram.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/nvram.c 2011-08-23 21:47:55.000000000 -0400 -@@ -246,7 +246,7 @@ static ssize_t nvram_read(struct file *f - - spin_unlock_irq(&rtc_lock); - -- if (copy_to_user(buf, contents, tmp - contents)) -+ if (tmp - contents > sizeof(contents) || copy_to_user(buf, contents, tmp - contents)) - return -EFAULT; - - *ppos = i; -diff -urNp linux-3.0.4/drivers/char/random.c linux-3.0.4/drivers/char/random.c ---- linux-3.0.4/drivers/char/random.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/char/random.c 2011-08-23 21:48:14.000000000 -0400 -@@ -261,8 +261,13 @@ - /* - * Configuration information - */ -+#ifdef CONFIG_GRKERNSEC_RANDNET -+#define INPUT_POOL_WORDS 512 -+#define OUTPUT_POOL_WORDS 128 -+#else - #define INPUT_POOL_WORDS 128 - #define OUTPUT_POOL_WORDS 32 -+#endif - #define SEC_XFER_SIZE 512 - #define EXTRACT_SIZE 10 - -@@ -300,10 +305,17 @@ static struct poolinfo { - int poolwords; - int tap1, tap2, tap3, tap4, tap5; - } poolinfo_table[] = { -+#ifdef CONFIG_GRKERNSEC_RANDNET -+ /* x^512 + x^411 + x^308 + x^208 +x^104 + x + 1 -- 225 */ -+ { 512, 411, 308, 208, 104, 1 }, -+ /* x^128 + x^103 + x^76 + x^51 + x^25 + x + 1 -- 105 */ -+ { 128, 103, 76, 51, 25, 1 }, -+#else - /* x^128 + x^103 + x^76 + x^51 +x^25 + x + 1 -- 105 */ - { 128, 103, 76, 51, 25, 1 }, - /* x^32 + x^26 + x^20 + x^14 + x^7 + x + 1 -- 15 */ - { 32, 26, 20, 14, 7, 1 }, -+#endif - #if 0 - /* x^2048 + x^1638 + x^1231 + x^819 + x^411 + x + 1 -- 115 */ - { 2048, 1638, 1231, 819, 411, 1 }, -@@ -909,7 +921,7 @@ static ssize_t extract_entropy_user(stru - - extract_buf(r, tmp); - i = min_t(int, nbytes, EXTRACT_SIZE); -- if (copy_to_user(buf, tmp, i)) { -+ if (i > sizeof(tmp) || copy_to_user(buf, tmp, i)) { - ret = -EFAULT; - break; - } -@@ -1214,7 +1226,7 @@ EXPORT_SYMBOL(generate_random_uuid); - #include - - static int min_read_thresh = 8, min_write_thresh; --static int max_read_thresh = INPUT_POOL_WORDS * 32; -+static int max_read_thresh = OUTPUT_POOL_WORDS * 32; - static int max_write_thresh = INPUT_POOL_WORDS * 32; - static char sysctl_bootid[16]; - -diff -urNp linux-3.0.4/drivers/char/sonypi.c linux-3.0.4/drivers/char/sonypi.c ---- linux-3.0.4/drivers/char/sonypi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/sonypi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -55,6 +55,7 @@ - #include - #include - #include -+#include - - #include - -@@ -491,7 +492,7 @@ static struct sonypi_device { - spinlock_t fifo_lock; - wait_queue_head_t fifo_proc_list; - struct fasync_struct *fifo_async; -- int open_count; -+ local_t open_count; - int model; - struct input_dev *input_jog_dev; - struct input_dev *input_key_dev; -@@ -898,7 +899,7 @@ static int sonypi_misc_fasync(int fd, st - static int sonypi_misc_release(struct inode *inode, struct file *file) - { - mutex_lock(&sonypi_device.lock); -- sonypi_device.open_count--; -+ local_dec(&sonypi_device.open_count); - mutex_unlock(&sonypi_device.lock); - return 0; - } -@@ -907,9 +908,9 @@ static int sonypi_misc_open(struct inode - { - mutex_lock(&sonypi_device.lock); - /* Flush input queue on first open */ -- if (!sonypi_device.open_count) -+ if (!local_read(&sonypi_device.open_count)) - kfifo_reset(&sonypi_device.fifo); -- sonypi_device.open_count++; -+ local_inc(&sonypi_device.open_count); - mutex_unlock(&sonypi_device.lock); - - return 0; -diff -urNp linux-3.0.4/drivers/char/tpm/tpm_bios.c linux-3.0.4/drivers/char/tpm/tpm_bios.c ---- linux-3.0.4/drivers/char/tpm/tpm_bios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/tpm/tpm_bios.c 2011-08-23 21:47:55.000000000 -0400 -@@ -173,7 +173,7 @@ static void *tpm_bios_measurements_start - event = addr; - - if ((event->event_type == 0 && event->event_size == 0) || -- ((addr + sizeof(struct tcpa_event) + event->event_size) >= limit)) -+ (event->event_size >= limit - addr - sizeof(struct tcpa_event))) - return NULL; - - return addr; -@@ -198,7 +198,7 @@ static void *tpm_bios_measurements_next( - return NULL; - - if ((event->event_type == 0 && event->event_size == 0) || -- ((v + sizeof(struct tcpa_event) + event->event_size) >= limit)) -+ (event->event_size >= limit - v - sizeof(struct tcpa_event))) - return NULL; - - (*pos)++; -@@ -291,7 +291,8 @@ static int tpm_binary_bios_measurements_ - int i; - - for (i = 0; i < sizeof(struct tcpa_event) + event->event_size; i++) -- seq_putc(m, data[i]); -+ if (!seq_putc(m, data[i])) -+ return -EFAULT; - - return 0; - } -@@ -410,6 +411,11 @@ static int read_log(struct tpm_bios_log - log->bios_event_log_end = log->bios_event_log + len; - - virt = acpi_os_map_memory(start, len); -+ if (!virt) { -+ kfree(log->bios_event_log); -+ log->bios_event_log = NULL; -+ return -EFAULT; -+ } - - memcpy(log->bios_event_log, virt, len); - -diff -urNp linux-3.0.4/drivers/char/tpm/tpm.c linux-3.0.4/drivers/char/tpm/tpm.c ---- linux-3.0.4/drivers/char/tpm/tpm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/char/tpm/tpm.c 2011-08-23 21:48:14.000000000 -0400 -@@ -411,7 +411,7 @@ static ssize_t tpm_transmit(struct tpm_c - chip->vendor.req_complete_val) - goto out_recv; - -- if ((status == chip->vendor.req_canceled)) { -+ if (status == chip->vendor.req_canceled) { - dev_err(chip->dev, "Operation Canceled\n"); - rc = -ECANCELED; - goto out; -@@ -844,6 +844,8 @@ ssize_t tpm_show_pubek(struct device *de - - struct tpm_chip *chip = dev_get_drvdata(dev); - -+ pax_track_stack(); -+ - tpm_cmd.header.in = tpm_readpubek_header; - err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE, - "attempting to read the PUBEK"); -diff -urNp linux-3.0.4/drivers/crypto/hifn_795x.c linux-3.0.4/drivers/crypto/hifn_795x.c ---- linux-3.0.4/drivers/crypto/hifn_795x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/crypto/hifn_795x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1655,6 +1655,8 @@ static int hifn_test(struct hifn_device - 0xCA, 0x34, 0x2B, 0x2E}; - struct scatterlist sg; - -+ pax_track_stack(); -+ - memset(src, 0, sizeof(src)); - memset(ctx.key, 0, sizeof(ctx.key)); - -diff -urNp linux-3.0.4/drivers/crypto/padlock-aes.c linux-3.0.4/drivers/crypto/padlock-aes.c ---- linux-3.0.4/drivers/crypto/padlock-aes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/crypto/padlock-aes.c 2011-08-23 21:48:14.000000000 -0400 -@@ -109,6 +109,8 @@ static int aes_set_key(struct crypto_tfm - struct crypto_aes_ctx gen_aes; - int cpu; - -+ pax_track_stack(); -+ - if (key_len % 8) { - *flags |= CRYPTO_TFM_RES_BAD_KEY_LEN; - return -EINVAL; -diff -urNp linux-3.0.4/drivers/edac/edac_pci_sysfs.c linux-3.0.4/drivers/edac/edac_pci_sysfs.c ---- linux-3.0.4/drivers/edac/edac_pci_sysfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/edac/edac_pci_sysfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -26,8 +26,8 @@ static int edac_pci_log_pe = 1; /* log - static int edac_pci_log_npe = 1; /* log PCI non-parity error errors */ - static int edac_pci_poll_msec = 1000; /* one second workq period */ - --static atomic_t pci_parity_count = ATOMIC_INIT(0); --static atomic_t pci_nonparity_count = ATOMIC_INIT(0); -+static atomic_unchecked_t pci_parity_count = ATOMIC_INIT(0); -+static atomic_unchecked_t pci_nonparity_count = ATOMIC_INIT(0); - - static struct kobject *edac_pci_top_main_kobj; - static atomic_t edac_pci_sysfs_refcount = ATOMIC_INIT(0); -@@ -582,7 +582,7 @@ static void edac_pci_dev_parity_test(str - edac_printk(KERN_CRIT, EDAC_PCI, - "Signaled System Error on %s\n", - pci_name(dev)); -- atomic_inc(&pci_nonparity_count); -+ atomic_inc_unchecked(&pci_nonparity_count); - } - - if (status & (PCI_STATUS_PARITY)) { -@@ -590,7 +590,7 @@ static void edac_pci_dev_parity_test(str - "Master Data Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { -@@ -598,7 +598,7 @@ static void edac_pci_dev_parity_test(str - "Detected Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - } - -@@ -619,7 +619,7 @@ static void edac_pci_dev_parity_test(str - edac_printk(KERN_CRIT, EDAC_PCI, "Bridge " - "Signaled System Error on %s\n", - pci_name(dev)); -- atomic_inc(&pci_nonparity_count); -+ atomic_inc_unchecked(&pci_nonparity_count); - } - - if (status & (PCI_STATUS_PARITY)) { -@@ -627,7 +627,7 @@ static void edac_pci_dev_parity_test(str - "Master Data Parity Error on " - "%s\n", pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - - if (status & (PCI_STATUS_DETECTED_PARITY)) { -@@ -635,7 +635,7 @@ static void edac_pci_dev_parity_test(str - "Detected Parity Error on %s\n", - pci_name(dev)); - -- atomic_inc(&pci_parity_count); -+ atomic_inc_unchecked(&pci_parity_count); - } - } - } -@@ -677,7 +677,7 @@ void edac_pci_do_parity_check(void) - if (!check_pci_errors) - return; - -- before_count = atomic_read(&pci_parity_count); -+ before_count = atomic_read_unchecked(&pci_parity_count); - - /* scan all PCI devices looking for a Parity Error on devices and - * bridges. -@@ -689,7 +689,7 @@ void edac_pci_do_parity_check(void) - /* Only if operator has selected panic on PCI Error */ - if (edac_pci_get_panic_on_pe()) { - /* If the count is different 'after' from 'before' */ -- if (before_count != atomic_read(&pci_parity_count)) -+ if (before_count != atomic_read_unchecked(&pci_parity_count)) - panic("EDAC: PCI Parity Error"); - } - } -diff -urNp linux-3.0.4/drivers/edac/mce_amd.h linux-3.0.4/drivers/edac/mce_amd.h ---- linux-3.0.4/drivers/edac/mce_amd.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/edac/mce_amd.h 2011-08-23 21:47:55.000000000 -0400 -@@ -83,7 +83,7 @@ struct amd_decoder_ops { - bool (*dc_mce)(u16, u8); - bool (*ic_mce)(u16, u8); - bool (*nb_mce)(u16, u8); --}; -+} __no_const; - - void amd_report_gart_errors(bool); - void amd_register_ecc_decoder(void (*f)(int, struct mce *, u32)); -diff -urNp linux-3.0.4/drivers/firewire/core-card.c linux-3.0.4/drivers/firewire/core-card.c ---- linux-3.0.4/drivers/firewire/core-card.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-card.c 2011-08-23 21:47:55.000000000 -0400 -@@ -657,7 +657,7 @@ void fw_card_release(struct kref *kref) - - void fw_core_remove_card(struct fw_card *card) - { -- struct fw_card_driver dummy_driver = dummy_driver_template; -+ fw_card_driver_no_const dummy_driver = dummy_driver_template; - - card->driver->update_phy_reg(card, 4, - PHY_LINK_ACTIVE | PHY_CONTENDER, 0); -diff -urNp linux-3.0.4/drivers/firewire/core-cdev.c linux-3.0.4/drivers/firewire/core-cdev.c ---- linux-3.0.4/drivers/firewire/core-cdev.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-cdev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1313,8 +1313,7 @@ static int init_iso_resource(struct clie - int ret; - - if ((request->channels == 0 && request->bandwidth == 0) || -- request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL || -- request->bandwidth < 0) -+ request->bandwidth > BANDWIDTH_AVAILABLE_INITIAL) - return -EINVAL; - - r = kmalloc(sizeof(*r), GFP_KERNEL); -diff -urNp linux-3.0.4/drivers/firewire/core.h linux-3.0.4/drivers/firewire/core.h ---- linux-3.0.4/drivers/firewire/core.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core.h 2011-08-23 21:47:55.000000000 -0400 -@@ -101,6 +101,7 @@ struct fw_card_driver { - - int (*stop_iso)(struct fw_iso_context *ctx); - }; -+typedef struct fw_card_driver __no_const fw_card_driver_no_const; - - void fw_card_initialize(struct fw_card *card, - const struct fw_card_driver *driver, struct device *device); -diff -urNp linux-3.0.4/drivers/firewire/core-transaction.c linux-3.0.4/drivers/firewire/core-transaction.c ---- linux-3.0.4/drivers/firewire/core-transaction.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firewire/core-transaction.c 2011-08-23 21:48:14.000000000 -0400 -@@ -37,6 +37,7 @@ - #include - #include - #include -+#include - - #include - -@@ -422,6 +423,8 @@ int fw_run_transaction(struct fw_card *c - struct transaction_callback_data d; - struct fw_transaction t; - -+ pax_track_stack(); -+ - init_timer_on_stack(&t.split_timeout_timer); - init_completion(&d.done); - d.payload = payload; -diff -urNp linux-3.0.4/drivers/firmware/dmi_scan.c linux-3.0.4/drivers/firmware/dmi_scan.c ---- linux-3.0.4/drivers/firmware/dmi_scan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/firmware/dmi_scan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -449,11 +449,6 @@ void __init dmi_scan_machine(void) - } - } - else { -- /* -- * no iounmap() for that ioremap(); it would be a no-op, but -- * it's so early in setup that sucker gets confused into doing -- * what it shouldn't if we actually call it. -- */ - p = dmi_ioremap(0xF0000, 0x10000); - if (p == NULL) - goto error; -diff -urNp linux-3.0.4/drivers/gpio/vr41xx_giu.c linux-3.0.4/drivers/gpio/vr41xx_giu.c ---- linux-3.0.4/drivers/gpio/vr41xx_giu.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpio/vr41xx_giu.c 2011-08-23 21:47:55.000000000 -0400 -@@ -204,7 +204,7 @@ static int giu_get_irq(unsigned int irq) - printk(KERN_ERR "spurious GIU interrupt: %04x(%04x),%04x(%04x)\n", - maskl, pendl, maskh, pendh); - -- atomic_inc(&irq_err_count); -+ atomic_inc_unchecked(&irq_err_count); - - return -EINVAL; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c ---- linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_crtc_helper.c 2011-08-23 21:48:14.000000000 -0400 -@@ -276,7 +276,7 @@ static bool drm_encoder_crtc_ok(struct d - struct drm_crtc *tmp; - int crtc_mask = 1; - -- WARN(!crtc, "checking null crtc?\n"); -+ BUG_ON(!crtc); - - dev = crtc->dev; - -@@ -343,6 +343,8 @@ bool drm_crtc_helper_set_mode(struct drm - struct drm_encoder *encoder; - bool ret = true; - -+ pax_track_stack(); -+ - crtc->enabled = drm_helper_crtc_in_use(crtc); - if (!crtc->enabled) - return true; -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_drv.c linux-3.0.4/drivers/gpu/drm/drm_drv.c ---- linux-3.0.4/drivers/gpu/drm/drm_drv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_drv.c 2011-08-23 21:47:55.000000000 -0400 -@@ -386,7 +386,7 @@ long drm_ioctl(struct file *filp, - - dev = file_priv->minor->dev; - atomic_inc(&dev->ioctl_count); -- atomic_inc(&dev->counts[_DRM_STAT_IOCTLS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_IOCTLS]); - ++file_priv->ioctl_count; - - DRM_DEBUG("pid=%d, cmd=0x%02x, nr=0x%02x, dev 0x%lx, auth=%d\n", -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_fops.c linux-3.0.4/drivers/gpu/drm/drm_fops.c ---- linux-3.0.4/drivers/gpu/drm/drm_fops.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_fops.c 2011-08-23 21:47:55.000000000 -0400 -@@ -70,7 +70,7 @@ static int drm_setup(struct drm_device * - } - - for (i = 0; i < ARRAY_SIZE(dev->counts); i++) -- atomic_set(&dev->counts[i], 0); -+ atomic_set_unchecked(&dev->counts[i], 0); - - dev->sigdata.lock = NULL; - -@@ -134,8 +134,8 @@ int drm_open(struct inode *inode, struct - - retcode = drm_open_helper(inode, filp, dev); - if (!retcode) { -- atomic_inc(&dev->counts[_DRM_STAT_OPENS]); -- if (!dev->open_count++) -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_OPENS]); -+ if (local_inc_return(&dev->open_count) == 1) - retcode = drm_setup(dev); - } - if (!retcode) { -@@ -472,7 +472,7 @@ int drm_release(struct inode *inode, str - - mutex_lock(&drm_global_mutex); - -- DRM_DEBUG("open_count = %d\n", dev->open_count); -+ DRM_DEBUG("open_count = %d\n", local_read(&dev->open_count)); - - if (dev->driver->preclose) - dev->driver->preclose(dev, file_priv); -@@ -484,7 +484,7 @@ int drm_release(struct inode *inode, str - DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n", - task_pid_nr(current), - (long)old_encode_dev(file_priv->minor->device), -- dev->open_count); -+ local_read(&dev->open_count)); - - /* if the master has gone away we can't do anything with the lock */ - if (file_priv->minor->master) -@@ -565,8 +565,8 @@ int drm_release(struct inode *inode, str - * End inline drm_release - */ - -- atomic_inc(&dev->counts[_DRM_STAT_CLOSES]); -- if (!--dev->open_count) { -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_CLOSES]); -+ if (local_dec_and_test(&dev->open_count)) { - if (atomic_read(&dev->ioctl_count)) { - DRM_ERROR("Device busy: %d\n", - atomic_read(&dev->ioctl_count)); -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_global.c linux-3.0.4/drivers/gpu/drm/drm_global.c ---- linux-3.0.4/drivers/gpu/drm/drm_global.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_global.c 2011-08-23 21:47:55.000000000 -0400 -@@ -36,7 +36,7 @@ - struct drm_global_item { - struct mutex mutex; - void *object; -- int refcount; -+ atomic_t refcount; - }; - - static struct drm_global_item glob[DRM_GLOBAL_NUM]; -@@ -49,7 +49,7 @@ void drm_global_init(void) - struct drm_global_item *item = &glob[i]; - mutex_init(&item->mutex); - item->object = NULL; -- item->refcount = 0; -+ atomic_set(&item->refcount, 0); - } - } - -@@ -59,7 +59,7 @@ void drm_global_release(void) - for (i = 0; i < DRM_GLOBAL_NUM; ++i) { - struct drm_global_item *item = &glob[i]; - BUG_ON(item->object != NULL); -- BUG_ON(item->refcount != 0); -+ BUG_ON(atomic_read(&item->refcount) != 0); - } - } - -@@ -70,7 +70,7 @@ int drm_global_item_ref(struct drm_globa - void *object; - - mutex_lock(&item->mutex); -- if (item->refcount == 0) { -+ if (atomic_read(&item->refcount) == 0) { - item->object = kzalloc(ref->size, GFP_KERNEL); - if (unlikely(item->object == NULL)) { - ret = -ENOMEM; -@@ -83,7 +83,7 @@ int drm_global_item_ref(struct drm_globa - goto out_err; - - } -- ++item->refcount; -+ atomic_inc(&item->refcount); - ref->object = item->object; - object = item->object; - mutex_unlock(&item->mutex); -@@ -100,9 +100,9 @@ void drm_global_item_unref(struct drm_gl - struct drm_global_item *item = &glob[ref->global_type]; - - mutex_lock(&item->mutex); -- BUG_ON(item->refcount == 0); -+ BUG_ON(atomic_read(&item->refcount) == 0); - BUG_ON(ref->object != item->object); -- if (--item->refcount == 0) { -+ if (atomic_dec_and_test(&item->refcount)) { - ref->release(ref); - item->object = NULL; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_info.c linux-3.0.4/drivers/gpu/drm/drm_info.c ---- linux-3.0.4/drivers/gpu/drm/drm_info.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_info.c 2011-08-23 21:48:14.000000000 -0400 -@@ -75,10 +75,14 @@ int drm_vm_info(struct seq_file *m, void - struct drm_local_map *map; - struct drm_map_list *r_list; - -- /* Hardcoded from _DRM_FRAME_BUFFER, -- _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and -- _DRM_SCATTER_GATHER and _DRM_CONSISTENT */ -- const char *types[] = { "FB", "REG", "SHM", "AGP", "SG", "PCI" }; -+ static const char * const types[] = { -+ [_DRM_FRAME_BUFFER] = "FB", -+ [_DRM_REGISTERS] = "REG", -+ [_DRM_SHM] = "SHM", -+ [_DRM_AGP] = "AGP", -+ [_DRM_SCATTER_GATHER] = "SG", -+ [_DRM_CONSISTENT] = "PCI", -+ [_DRM_GEM] = "GEM" }; - const char *type; - int i; - -@@ -89,7 +93,7 @@ int drm_vm_info(struct seq_file *m, void - map = r_list->map; - if (!map) - continue; -- if (map->type < 0 || map->type > 5) -+ if (map->type >= ARRAY_SIZE(types)) - type = "??"; - else - type = types[map->type]; -@@ -290,7 +294,11 @@ int drm_vma_info(struct seq_file *m, voi - vma->vm_flags & VM_MAYSHARE ? 's' : 'p', - vma->vm_flags & VM_LOCKED ? 'l' : '-', - vma->vm_flags & VM_IO ? 'i' : '-', -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ 0); -+#else - vma->vm_pgoff); -+#endif - - #if defined(__i386__) - pgprot = pgprot_val(vma->vm_page_prot); -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_ioctl.c linux-3.0.4/drivers/gpu/drm/drm_ioctl.c ---- linux-3.0.4/drivers/gpu/drm/drm_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -256,7 +256,7 @@ int drm_getstats(struct drm_device *dev, - stats->data[i].value = - (file_priv->master->lock.hw_lock ? file_priv->master->lock.hw_lock->lock : 0); - else -- stats->data[i].value = atomic_read(&dev->counts[i]); -+ stats->data[i].value = atomic_read_unchecked(&dev->counts[i]); - stats->data[i].type = dev->types[i]; - } - -diff -urNp linux-3.0.4/drivers/gpu/drm/drm_lock.c linux-3.0.4/drivers/gpu/drm/drm_lock.c ---- linux-3.0.4/drivers/gpu/drm/drm_lock.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/drm_lock.c 2011-08-23 21:47:55.000000000 -0400 -@@ -89,7 +89,7 @@ int drm_lock(struct drm_device *dev, voi - if (drm_lock_take(&master->lock, lock->context)) { - master->lock.file_priv = file_priv; - master->lock.lock_time = jiffies; -- atomic_inc(&dev->counts[_DRM_STAT_LOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_LOCKS]); - break; /* Got lock */ - } - -@@ -160,7 +160,7 @@ int drm_unlock(struct drm_device *dev, v - return -EINVAL; - } - -- atomic_inc(&dev->counts[_DRM_STAT_UNLOCKS]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_UNLOCKS]); - - if (drm_lock_free(&master->lock, lock->context)) { - /* FIXME: Should really bail out here. */ -diff -urNp linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c ---- linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i810/i810_dma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -950,8 +950,8 @@ static int i810_dma_vertex(struct drm_de - dma->buflist[vertex->idx], - vertex->discard, vertex->used); - -- atomic_add(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(vertex->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -@@ -1111,8 +1111,8 @@ static int i810_dma_mc(struct drm_device - i810_dma_dispatch_mc(dev, dma->buflist[mc->idx], mc->used, - mc->last_render); - -- atomic_add(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -- atomic_inc(&dev->counts[_DRM_STAT_DMA]); -+ atomic_add_unchecked(mc->used, &dev->counts[_DRM_STAT_SECONDARY]); -+ atomic_inc_unchecked(&dev->counts[_DRM_STAT_DMA]); - sarea_priv->last_enqueue = dev_priv->counter - 1; - sarea_priv->last_dispatch = (int)hw_status[5]; - -diff -urNp linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h ---- linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i810/i810_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -108,8 +108,8 @@ typedef struct drm_i810_private { - int page_flipping; - - wait_queue_head_t irq_queue; -- atomic_t irq_received; -- atomic_t irq_emitted; -+ atomic_unchecked_t irq_received; -+ atomic_unchecked_t irq_emitted; - - int front_offset; - } drm_i810_private_t; -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_debugfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -497,7 +497,7 @@ static int i915_interrupt_info(struct se - I915_READ(GTIMR)); - } - seq_printf(m, "Interrupts received: %d\n", -- atomic_read(&dev_priv->irq_received)); -+ atomic_read_unchecked(&dev_priv->irq_received)); - for (i = 0; i < I915_NUM_RINGS; i++) { - if (IS_GEN6(dev)) { - seq_printf(m, "Graphics Interrupt mask (%s): %08x\n", -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_dma.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1169,7 +1169,7 @@ static bool i915_switcheroo_can_switch(s - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h ---- linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -219,7 +219,7 @@ struct drm_i915_display_funcs { - /* render clock increase/decrease */ - /* display clock increase/decrease */ - /* pll clock increase/decrease */ --}; -+} __no_const; - - struct intel_device_info { - u8 gen; -@@ -300,7 +300,7 @@ typedef struct drm_i915_private { - int current_page; - int page_flipping; - -- atomic_t irq_received; -+ atomic_unchecked_t irq_received; - - /* protects the irq masks */ - spinlock_t irq_lock; -@@ -874,7 +874,7 @@ struct drm_i915_gem_object { - * will be page flipped away on the next vblank. When it - * reaches 0, dev_priv->pending_flip_queue will be woken up. - */ -- atomic_t pending_flip; -+ atomic_unchecked_t pending_flip; - }; - - #define to_intel_bo(x) container_of(x, struct drm_i915_gem_object, base) -@@ -1247,7 +1247,7 @@ extern int intel_setup_gmbus(struct drm_ - extern void intel_teardown_gmbus(struct drm_device *dev); - extern void intel_gmbus_set_speed(struct i2c_adapter *adapter, int speed); - extern void intel_gmbus_force_bit(struct i2c_adapter *adapter, bool force_bit); --extern inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) -+static inline bool intel_gmbus_is_forced_bit(struct i2c_adapter *adapter) - { - return container_of(adapter, struct intel_gmbus, adapter)->force_bit; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_gem_execbuffer.c 2011-08-23 21:47:55.000000000 -0400 -@@ -188,7 +188,7 @@ i915_gem_object_set_to_gpu_domain(struct - i915_gem_clflush_object(obj); - - if (obj->base.pending_write_domain) -- cd->flips |= atomic_read(&obj->pending_flip); -+ cd->flips |= atomic_read_unchecked(&obj->pending_flip); - - /* The actual obj->write_domain will be updated with - * pending_write_domain after we emit the accumulated flush for all -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c ---- linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/i915_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -473,7 +473,7 @@ static irqreturn_t ivybridge_irq_handler - u32 de_iir, gt_iir, de_ier, pch_iir, pm_iir; - struct drm_i915_master_private *master_priv; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - /* disable master interrupt before clearing iir */ - de_ier = I915_READ(DEIER); -@@ -563,7 +563,7 @@ static irqreturn_t ironlake_irq_handler( - struct drm_i915_master_private *master_priv; - u32 bsd_usr_interrupt = GT_BSD_USER_INTERRUPT; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - if (IS_GEN6(dev)) - bsd_usr_interrupt = GT_GEN6_BSD_USER_INTERRUPT; -@@ -1226,7 +1226,7 @@ static irqreturn_t i915_driver_irq_handl - int ret = IRQ_NONE, pipe; - bool blc_event = false; - -- atomic_inc(&dev_priv->irq_received); -+ atomic_inc_unchecked(&dev_priv->irq_received); - - iir = I915_READ(IIR); - -@@ -1735,7 +1735,7 @@ static void ironlake_irq_preinstall(stru - { - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - -- atomic_set(&dev_priv->irq_received, 0); -+ atomic_set_unchecked(&dev_priv->irq_received, 0); - - INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); - INIT_WORK(&dev_priv->error_work, i915_error_work_func); -@@ -1899,7 +1899,7 @@ static void i915_driver_irq_preinstall(s - drm_i915_private_t *dev_priv = (drm_i915_private_t *) dev->dev_private; - int pipe; - -- atomic_set(&dev_priv->irq_received, 0); -+ atomic_set_unchecked(&dev_priv->irq_received, 0); - - INIT_WORK(&dev_priv->hotplug_work, i915_hotplug_work_func); - INIT_WORK(&dev_priv->error_work, i915_error_work_func); -diff -urNp linux-3.0.4/drivers/gpu/drm/i915/intel_display.c linux-3.0.4/drivers/gpu/drm/i915/intel_display.c ---- linux-3.0.4/drivers/gpu/drm/i915/intel_display.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/i915/intel_display.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1961,7 +1961,7 @@ intel_pipe_set_base(struct drm_crtc *crt - - wait_event(dev_priv->pending_flip_queue, - atomic_read(&dev_priv->mm.wedged) || -- atomic_read(&obj->pending_flip) == 0); -+ atomic_read_unchecked(&obj->pending_flip) == 0); - - /* Big Hammer, we also need to ensure that any pending - * MI_WAIT_FOR_EVENT inside a user batch buffer on the -@@ -2548,7 +2548,7 @@ static void intel_crtc_wait_for_pending_ - obj = to_intel_framebuffer(crtc->fb)->obj; - dev_priv = crtc->dev->dev_private; - wait_event(dev_priv->pending_flip_queue, -- atomic_read(&obj->pending_flip) == 0); -+ atomic_read_unchecked(&obj->pending_flip) == 0); - } - - static bool intel_crtc_driving_pch(struct drm_crtc *crtc) -@@ -6225,7 +6225,7 @@ static void do_intel_finish_page_flip(st - - atomic_clear_mask(1 << intel_crtc->plane, - &obj->pending_flip.counter); -- if (atomic_read(&obj->pending_flip) == 0) -+ if (atomic_read_unchecked(&obj->pending_flip) == 0) - wake_up(&dev_priv->pending_flip_queue); - - schedule_work(&work->work); -@@ -6514,7 +6514,7 @@ static int intel_crtc_page_flip(struct d - /* Block clients from rendering to the new back buffer until - * the flip occurs and the object is no longer visible. - */ -- atomic_add(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); -+ atomic_add_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); - - ret = dev_priv->display.queue_flip(dev, crtc, fb, obj); - if (ret) -@@ -6527,7 +6527,7 @@ static int intel_crtc_page_flip(struct d - return 0; - - cleanup_pending: -- atomic_sub(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); -+ atomic_sub_unchecked(1 << intel_crtc->plane, &work->old_fb_obj->pending_flip); - cleanup_objs: - drm_gem_object_unreference(&work->old_fb_obj->base); - drm_gem_object_unreference(&obj->base); -diff -urNp linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h ---- linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/mga/mga_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -120,9 +120,9 @@ typedef struct drm_mga_private { - u32 clear_cmd; - u32 maccess; - -- atomic_t vbl_received; /**< Number of vblanks received. */ -+ atomic_unchecked_t vbl_received; /**< Number of vblanks received. */ - wait_queue_head_t fence_queue; -- atomic_t last_fence_retired; -+ atomic_unchecked_t last_fence_retired; - u32 next_fence_to_post; - - unsigned int fb_cpp; -diff -urNp linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c ---- linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/mga/mga_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,7 @@ u32 mga_get_vblank_counter(struct drm_de - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - -@@ -60,7 +60,7 @@ irqreturn_t mga_driver_irq_handler(DRM_I - /* VBLANK interrupt */ - if (status & MGA_VLINEPEN) { - MGA_WRITE(MGA_ICLEAR, MGA_VLINEICLR); -- atomic_inc(&dev_priv->vbl_received); -+ atomic_inc_unchecked(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); - handled = 1; - } -@@ -79,7 +79,7 @@ irqreturn_t mga_driver_irq_handler(DRM_I - if ((prim_start & ~0x03) != (prim_end & ~0x03)) - MGA_WRITE(MGA_PRIMEND, prim_end); - -- atomic_inc(&dev_priv->last_fence_retired); -+ atomic_inc_unchecked(&dev_priv->last_fence_retired); - DRM_WAKEUP(&dev_priv->fence_queue); - handled = 1; - } -@@ -130,7 +130,7 @@ int mga_driver_fence_wait(struct drm_dev - * using fences. - */ - DRM_WAIT_ON(ret, dev_priv->fence_queue, 3 * DRM_HZ, -- (((cur_fence = atomic_read(&dev_priv->last_fence_retired)) -+ (((cur_fence = atomic_read_unchecked(&dev_priv->last_fence_retired)) - - *sequence) <= (1 << 23))); - - *sequence = cur_fence; -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_bios.c 2011-08-26 19:49:56.000000000 -0400 -@@ -200,7 +200,7 @@ struct methods { - const char desc[8]; - void (*loadbios)(struct drm_device *, uint8_t *); - const bool rw; --}; -+} __do_const; - - static struct methods shadow_methods[] = { - { "PRAMIN", load_vbios_pramin, true }, -@@ -5488,7 +5488,7 @@ parse_bit_displayport_tbl_entry(struct d - struct bit_table { - const char id; - int (* const parse_fn)(struct drm_device *, struct nvbios *, struct bit_entry *); --}; -+} __no_const; - - #define BIT_TABLE(id, funcid) ((struct bit_table){ id, parse_bit_##funcid##_tbl_entry }) - -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -227,7 +227,7 @@ struct nouveau_channel { - struct list_head pending; - uint32_t sequence; - uint32_t sequence_ack; -- atomic_t last_sequence_irq; -+ atomic_unchecked_t last_sequence_irq; - } fence; - - /* DMA push buffer */ -@@ -304,7 +304,7 @@ struct nouveau_exec_engine { - u32 handle, u16 class); - void (*set_tile_region)(struct drm_device *dev, int i); - void (*tlb_flush)(struct drm_device *, int engine); --}; -+} __no_const; - - struct nouveau_instmem_engine { - void *priv; -@@ -325,13 +325,13 @@ struct nouveau_instmem_engine { - struct nouveau_mc_engine { - int (*init)(struct drm_device *dev); - void (*takedown)(struct drm_device *dev); --}; -+} __no_const; - - struct nouveau_timer_engine { - int (*init)(struct drm_device *dev); - void (*takedown)(struct drm_device *dev); - uint64_t (*read)(struct drm_device *dev); --}; -+} __no_const; - - struct nouveau_fb_engine { - int num_tiles; -@@ -494,7 +494,7 @@ struct nouveau_vram_engine { - void (*put)(struct drm_device *, struct nouveau_mem **); - - bool (*flags_valid)(struct drm_device *, u32 tile_flags); --}; -+} __no_const; - - struct nouveau_engine { - struct nouveau_instmem_engine instmem; -@@ -640,7 +640,7 @@ struct drm_nouveau_private { - struct drm_global_reference mem_global_ref; - struct ttm_bo_global_ref bo_global_ref; - struct ttm_bo_device bdev; -- atomic_t validate_sequence; -+ atomic_unchecked_t validate_sequence; - } ttm; - - struct { -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -85,7 +85,7 @@ nouveau_fence_update(struct nouveau_chan - if (USE_REFCNT(dev)) - sequence = nvchan_rd32(chan, 0x48); - else -- sequence = atomic_read(&chan->fence.last_sequence_irq); -+ sequence = atomic_read_unchecked(&chan->fence.last_sequence_irq); - - if (chan->fence.sequence_ack == sequence) - goto out; -@@ -544,7 +544,7 @@ nouveau_fence_channel_init(struct nouvea - - INIT_LIST_HEAD(&chan->fence.pending); - spin_lock_init(&chan->fence.lock); -- atomic_set(&chan->fence.last_sequence_irq, 0); -+ atomic_set_unchecked(&chan->fence.last_sequence_irq, 0); - return 0; - } - -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_gem.c 2011-08-23 21:47:55.000000000 -0400 -@@ -249,7 +249,7 @@ validate_init(struct nouveau_channel *ch - int trycnt = 0; - int ret, i; - -- sequence = atomic_add_return(1, &dev_priv->ttm.validate_sequence); -+ sequence = atomic_add_return_unchecked(1, &dev_priv->ttm.validate_sequence); - retry: - if (++trycnt > 100000) { - NV_ERROR(dev, "%s failed and gave up.\n", __func__); -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nouveau_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -488,7 +488,7 @@ static bool nouveau_switcheroo_can_switc - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c ---- linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/nouveau/nv04_graph.c 2011-08-23 21:47:55.000000000 -0400 -@@ -560,7 +560,7 @@ static int - nv04_graph_mthd_set_ref(struct nouveau_channel *chan, - u32 class, u32 mthd, u32 data) - { -- atomic_set(&chan->fence.last_sequence_irq, data); -+ atomic_set_unchecked(&chan->fence.last_sequence_irq, data); - return 0; - } - -diff -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_cce.c 2011-08-23 21:47:55.000000000 -0400 -@@ -377,7 +377,7 @@ static int r128_do_init_cce(struct drm_d - - /* GH: Simple idle check. - */ -- atomic_set(&dev_priv->idle_count, 0); -+ atomic_set_unchecked(&dev_priv->idle_count, 0); - - /* We don't support anything other than bus-mastering ring mode, - * but the ring can be in either AGP or PCI space for the ring -diff -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h ---- linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -90,14 +90,14 @@ typedef struct drm_r128_private { - int is_pci; - unsigned long cce_buffers_offset; - -- atomic_t idle_count; -+ atomic_unchecked_t idle_count; - - int page_flipping; - int current_page; - u32 crtc_offset; - u32 crtc_offset_cntl; - -- atomic_t vbl_received; -+ atomic_unchecked_t vbl_received; - - u32 color_fmt; - unsigned int front_offset; -diff -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ u32 r128_get_vblank_counter(struct drm_d - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - irqreturn_t r128_driver_irq_handler(DRM_IRQ_ARGS) -@@ -56,7 +56,7 @@ irqreturn_t r128_driver_irq_handler(DRM_ - /* VBLANK interrupt */ - if (status & R128_CRTC_VBLANK_INT) { - R128_WRITE(R128_GEN_INT_STATUS, R128_CRTC_VBLANK_INT_AK); -- atomic_inc(&dev_priv->vbl_received); -+ atomic_inc_unchecked(&dev_priv->vbl_received); - drm_handle_vblank(dev, 0); - return IRQ_HANDLED; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/r128/r128_state.c linux-3.0.4/drivers/gpu/drm/r128/r128_state.c ---- linux-3.0.4/drivers/gpu/drm/r128/r128_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/r128/r128_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -321,10 +321,10 @@ static void r128_clear_box(drm_r128_priv - - static void r128_cce_performance_boxes(drm_r128_private_t *dev_priv) - { -- if (atomic_read(&dev_priv->idle_count) == 0) -+ if (atomic_read_unchecked(&dev_priv->idle_count) == 0) - r128_clear_box(dev_priv, 64, 4, 8, 8, 0, 255, 0); - else -- atomic_set(&dev_priv->idle_count, 0); -+ atomic_set_unchecked(&dev_priv->idle_count, 0); - } - - #endif -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/atom.c linux-3.0.4/drivers/gpu/drm/radeon/atom.c ---- linux-3.0.4/drivers/gpu/drm/radeon/atom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/atom.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1245,6 +1245,8 @@ struct atom_context *atom_parse(struct c - char name[512]; - int i; - -+ pax_track_stack(); -+ - ctx->card = card; - ctx->bios = bios; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c ---- linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/mkregtable.c 2011-08-23 21:47:55.000000000 -0400 -@@ -637,14 +637,14 @@ static int parser_auth(struct table *t, - regex_t mask_rex; - regmatch_t match[4]; - char buf[1024]; -- size_t end; -+ long end; - int len; - int done = 0; - int r; - unsigned o; - struct offset *offset; - char last_reg_s[10]; -- int last_reg; -+ unsigned long last_reg; - - if (regcomp - (&mask_rex, "(0x[0-9a-fA-F]*) *([_a-zA-Z0-9]*)", REG_EXTENDED)) { -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_atombios.c 2011-08-23 21:48:14.000000000 -0400 -@@ -545,6 +545,8 @@ bool radeon_get_atom_connector_info_from - struct radeon_gpio_rec gpio; - struct radeon_hpd hpd; - -+ pax_track_stack(); -+ - if (!atom_parse_data_header(ctx, index, &size, &frev, &crev, &data_offset)) - return false; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_device.c 2011-08-23 21:47:55.000000000 -0400 -@@ -678,7 +678,7 @@ static bool radeon_switcheroo_can_switch - bool can_switch; - - spin_lock(&dev->count_lock); -- can_switch = (dev->open_count == 0); -+ can_switch = (local_read(&dev->open_count) == 0); - spin_unlock(&dev->count_lock); - return can_switch; - } -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_display.c 2011-08-23 21:48:14.000000000 -0400 -@@ -946,6 +946,8 @@ void radeon_compute_pll_legacy(struct ra - uint32_t post_div; - u32 pll_out_min, pll_out_max; - -+ pax_track_stack(); -+ - DRM_DEBUG_KMS("PLL freq %llu %u %u\n", freq, pll->min_ref_div, pll->max_ref_div); - freq = freq * 1000; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -255,7 +255,7 @@ typedef struct drm_radeon_private { - - /* SW interrupt */ - wait_queue_head_t swi_queue; -- atomic_t swi_emitted; -+ atomic_unchecked_t swi_emitted; - int vblank_crtc; - uint32_t irq_enable_reg; - uint32_t r500_disp_irq_reg; -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -78,7 +78,7 @@ int radeon_fence_emit(struct radeon_devi - write_unlock_irqrestore(&rdev->fence_drv.lock, irq_flags); - return 0; - } -- fence->seq = atomic_add_return(1, &rdev->fence_drv.seq); -+ fence->seq = atomic_add_return_unchecked(1, &rdev->fence_drv.seq); - if (!rdev->cp.ready) - /* FIXME: cp is not running assume everythings is done right - * away -@@ -373,7 +373,7 @@ int radeon_fence_driver_init(struct rade - return r; - } - radeon_fence_write(rdev, 0); -- atomic_set(&rdev->fence_drv.seq, 0); -+ atomic_set_unchecked(&rdev->fence_drv.seq, 0); - INIT_LIST_HEAD(&rdev->fence_drv.created); - INIT_LIST_HEAD(&rdev->fence_drv.emited); - INIT_LIST_HEAD(&rdev->fence_drv.signaled); -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon.h linux-3.0.4/drivers/gpu/drm/radeon/radeon.h ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon.h 2011-08-23 21:47:55.000000000 -0400 -@@ -191,7 +191,7 @@ extern int sumo_get_temp(struct radeon_d - */ - struct radeon_fence_driver { - uint32_t scratch_reg; -- atomic_t seq; -+ atomic_unchecked_t seq; - uint32_t last_seq; - unsigned long last_jiffies; - unsigned long last_timeout; -@@ -960,7 +960,7 @@ struct radeon_asic { - void (*pre_page_flip)(struct radeon_device *rdev, int crtc); - u32 (*page_flip)(struct radeon_device *rdev, int crtc, u64 crtc_base); - void (*post_page_flip)(struct radeon_device *rdev, int crtc); --}; -+} __no_const; - - /* - * Asic structures -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_ioc32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -359,7 +359,7 @@ static int compat_radeon_cp_setparam(str - request = compat_alloc_user_space(sizeof(*request)); - if (!access_ok(VERIFY_WRITE, request, sizeof(*request)) - || __put_user(req32.param, &request->param) -- || __put_user((void __user *)(unsigned long)req32.value, -+ || __put_user((unsigned long)req32.value, - &request->value)) - return -EFAULT; - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -225,8 +225,8 @@ static int radeon_emit_irq(struct drm_de - unsigned int ret; - RING_LOCALS; - -- atomic_inc(&dev_priv->swi_emitted); -- ret = atomic_read(&dev_priv->swi_emitted); -+ atomic_inc_unchecked(&dev_priv->swi_emitted); -+ ret = atomic_read_unchecked(&dev_priv->swi_emitted); - - BEGIN_RING(4); - OUT_RING_REG(RADEON_LAST_SWI_REG, ret); -@@ -352,7 +352,7 @@ int radeon_driver_irq_postinstall(struct - drm_radeon_private_t *dev_priv = - (drm_radeon_private_t *) dev->dev_private; - -- atomic_set(&dev_priv->swi_emitted, 0); -+ atomic_set_unchecked(&dev_priv->swi_emitted, 0); - DRM_INIT_WAITQUEUE(&dev_priv->swi_queue); - - dev->max_vblank_count = 0x001fffff; -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_state.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2168,7 +2168,7 @@ static int radeon_cp_clear(struct drm_de - if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS) - sarea_priv->nbox = RADEON_NR_SAREA_CLIPRECTS; - -- if (DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, -+ if (sarea_priv->nbox > RADEON_NR_SAREA_CLIPRECTS || DRM_COPY_FROM_USER(&depth_boxes, clear->depth_boxes, - sarea_priv->nbox * sizeof(depth_boxes[0]))) - return -EFAULT; - -@@ -3031,7 +3031,7 @@ static int radeon_cp_getparam(struct drm - { - drm_radeon_private_t *dev_priv = dev->dev_private; - drm_radeon_getparam_t *param = data; -- int value; -+ int value = 0; - - DRM_DEBUG("pid=%d\n", DRM_CURRENTPID); - -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c ---- linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/radeon_ttm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -644,8 +644,10 @@ int radeon_mmap(struct file *filp, struc - } - if (unlikely(ttm_vm_ops == NULL)) { - ttm_vm_ops = vma->vm_ops; -- radeon_ttm_vm_ops = *ttm_vm_ops; -- radeon_ttm_vm_ops.fault = &radeon_ttm_fault; -+ pax_open_kernel(); -+ memcpy((void *)&radeon_ttm_vm_ops, ttm_vm_ops, sizeof(radeon_ttm_vm_ops)); -+ *(void **)&radeon_ttm_vm_ops.fault = &radeon_ttm_fault; -+ pax_close_kernel(); - } - vma->vm_ops = &radeon_ttm_vm_ops; - return 0; -diff -urNp linux-3.0.4/drivers/gpu/drm/radeon/rs690.c linux-3.0.4/drivers/gpu/drm/radeon/rs690.c ---- linux-3.0.4/drivers/gpu/drm/radeon/rs690.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/radeon/rs690.c 2011-08-23 21:47:55.000000000 -0400 -@@ -304,9 +304,11 @@ void rs690_crtc_bandwidth_compute(struct - if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full && - rdev->pm.sideport_bandwidth.full) - rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth; -- read_delay_latency.full = dfixed_const(370 * 800 * 1000); -+ read_delay_latency.full = dfixed_const(800 * 1000); - read_delay_latency.full = dfixed_div(read_delay_latency, - rdev->pm.igp_sideport_mclk); -+ a.full = dfixed_const(370); -+ read_delay_latency.full = dfixed_mul(read_delay_latency, a); - } else { - if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full && - rdev->pm.k8_bandwidth.full) -diff -urNp linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c ---- linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/ttm/ttm_page_alloc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -398,9 +398,9 @@ static int ttm_pool_get_num_unused_pages - static int ttm_pool_mm_shrink(struct shrinker *shrink, - struct shrink_control *sc) - { -- static atomic_t start_pool = ATOMIC_INIT(0); -+ static atomic_unchecked_t start_pool = ATOMIC_INIT(0); - unsigned i; -- unsigned pool_offset = atomic_add_return(1, &start_pool); -+ unsigned pool_offset = atomic_add_return_unchecked(1, &start_pool); - struct ttm_page_pool *pool; - int shrink_pages = sc->nr_to_scan; - -diff -urNp linux-3.0.4/drivers/gpu/drm/via/via_drv.h linux-3.0.4/drivers/gpu/drm/via/via_drv.h ---- linux-3.0.4/drivers/gpu/drm/via/via_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/via/via_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -51,7 +51,7 @@ typedef struct drm_via_ring_buffer { - typedef uint32_t maskarray_t[5]; - - typedef struct drm_via_irq { -- atomic_t irq_received; -+ atomic_unchecked_t irq_received; - uint32_t pending_mask; - uint32_t enable_mask; - wait_queue_head_t irq_queue; -@@ -75,7 +75,7 @@ typedef struct drm_via_private { - struct timeval last_vblank; - int last_vblank_valid; - unsigned usec_per_vblank; -- atomic_t vbl_received; -+ atomic_unchecked_t vbl_received; - drm_via_state_t hc_state; - char pci_buf[VIA_PCI_BUF_SIZE]; - const uint32_t *fire_offsets[VIA_FIRE_BUF_SIZE]; -diff -urNp linux-3.0.4/drivers/gpu/drm/via/via_irq.c linux-3.0.4/drivers/gpu/drm/via/via_irq.c ---- linux-3.0.4/drivers/gpu/drm/via/via_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/via/via_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -102,7 +102,7 @@ u32 via_get_vblank_counter(struct drm_de - if (crtc != 0) - return 0; - -- return atomic_read(&dev_priv->vbl_received); -+ return atomic_read_unchecked(&dev_priv->vbl_received); - } - - irqreturn_t via_driver_irq_handler(DRM_IRQ_ARGS) -@@ -117,8 +117,8 @@ irqreturn_t via_driver_irq_handler(DRM_I - - status = VIA_READ(VIA_REG_INTERRUPT); - if (status & VIA_IRQ_VBLANK_PENDING) { -- atomic_inc(&dev_priv->vbl_received); -- if (!(atomic_read(&dev_priv->vbl_received) & 0x0F)) { -+ atomic_inc_unchecked(&dev_priv->vbl_received); -+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0x0F)) { - do_gettimeofday(&cur_vblank); - if (dev_priv->last_vblank_valid) { - dev_priv->usec_per_vblank = -@@ -128,7 +128,7 @@ irqreturn_t via_driver_irq_handler(DRM_I - dev_priv->last_vblank = cur_vblank; - dev_priv->last_vblank_valid = 1; - } -- if (!(atomic_read(&dev_priv->vbl_received) & 0xFF)) { -+ if (!(atomic_read_unchecked(&dev_priv->vbl_received) & 0xFF)) { - DRM_DEBUG("US per vblank is: %u\n", - dev_priv->usec_per_vblank); - } -@@ -138,7 +138,7 @@ irqreturn_t via_driver_irq_handler(DRM_I - - for (i = 0; i < dev_priv->num_irqs; ++i) { - if (status & cur_irq->pending_mask) { -- atomic_inc(&cur_irq->irq_received); -+ atomic_inc_unchecked(&cur_irq->irq_received); - DRM_WAKEUP(&cur_irq->irq_queue); - handled = 1; - if (dev_priv->irq_map[drm_via_irq_dma0_td] == i) -@@ -243,11 +243,11 @@ via_driver_irq_wait(struct drm_device *d - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - ((VIA_READ(masks[irq][2]) & masks[irq][3]) == - masks[irq][4])); -- cur_irq_sequence = atomic_read(&cur_irq->irq_received); -+ cur_irq_sequence = atomic_read_unchecked(&cur_irq->irq_received); - } else { - DRM_WAIT_ON(ret, cur_irq->irq_queue, 3 * DRM_HZ, - (((cur_irq_sequence = -- atomic_read(&cur_irq->irq_received)) - -+ atomic_read_unchecked(&cur_irq->irq_received)) - - *sequence) <= (1 << 23))); - } - *sequence = cur_irq_sequence; -@@ -285,7 +285,7 @@ void via_driver_irq_preinstall(struct dr - } - - for (i = 0; i < dev_priv->num_irqs; ++i) { -- atomic_set(&cur_irq->irq_received, 0); -+ atomic_set_unchecked(&cur_irq->irq_received, 0); - cur_irq->enable_mask = dev_priv->irq_masks[i][0]; - cur_irq->pending_mask = dev_priv->irq_masks[i][1]; - DRM_INIT_WAITQUEUE(&cur_irq->irq_queue); -@@ -367,7 +367,7 @@ int via_wait_irq(struct drm_device *dev, - switch (irqwait->request.type & ~VIA_IRQ_FLAGS_MASK) { - case VIA_IRQ_RELATIVE: - irqwait->request.sequence += -- atomic_read(&cur_irq->irq_received); -+ atomic_read_unchecked(&cur_irq->irq_received); - irqwait->request.type &= ~_DRM_VBLANK_RELATIVE; - case VIA_IRQ_ABSOLUTE: - break; -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_drv.h 2011-08-23 21:47:55.000000000 -0400 -@@ -240,7 +240,7 @@ struct vmw_private { - * Fencing and IRQs. - */ - -- atomic_t fence_seq; -+ atomic_unchecked_t fence_seq; - wait_queue_head_t fence_queue; - wait_queue_head_t fifo_queue; - atomic_t fence_queue_waiters; -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fence.c 2011-08-23 21:47:55.000000000 -0400 -@@ -151,7 +151,7 @@ int vmw_wait_lag(struct vmw_private *dev - while (!vmw_lag_lt(queue, us)) { - spin_lock(&queue->lock); - if (list_empty(&queue->head)) -- sequence = atomic_read(&dev_priv->fence_seq); -+ sequence = atomic_read_unchecked(&dev_priv->fence_seq); - else { - fence = list_first_entry(&queue->head, - struct vmw_fence, head); -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_fifo.c 2011-08-23 21:47:55.000000000 -0400 -@@ -137,7 +137,7 @@ int vmw_fifo_init(struct vmw_private *de - (unsigned int) min, - (unsigned int) fifo->capabilities); - -- atomic_set(&dev_priv->fence_seq, dev_priv->last_read_sequence); -+ atomic_set_unchecked(&dev_priv->fence_seq, dev_priv->last_read_sequence); - iowrite32(dev_priv->last_read_sequence, fifo_mem + SVGA_FIFO_FENCE); - vmw_fence_queue_init(&fifo->fence_queue); - return vmw_fifo_send_fence(dev_priv, &dummy); -@@ -476,7 +476,7 @@ int vmw_fifo_send_fence(struct vmw_priva - - fm = vmw_fifo_reserve(dev_priv, bytes); - if (unlikely(fm == NULL)) { -- *sequence = atomic_read(&dev_priv->fence_seq); -+ *sequence = atomic_read_unchecked(&dev_priv->fence_seq); - ret = -ENOMEM; - (void)vmw_fallback_wait(dev_priv, false, true, *sequence, - false, 3*HZ); -@@ -484,7 +484,7 @@ int vmw_fifo_send_fence(struct vmw_priva - } - - do { -- *sequence = atomic_add_return(1, &dev_priv->fence_seq); -+ *sequence = atomic_add_return_unchecked(1, &dev_priv->fence_seq); - } while (*sequence == 0); - - if (!(fifo_state->capabilities & SVGA_FIFO_CAP_FENCE)) { -diff -urNp linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c ---- linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/gpu/drm/vmwgfx/vmwgfx_irq.c 2011-08-23 21:47:55.000000000 -0400 -@@ -100,7 +100,7 @@ bool vmw_fence_signaled(struct vmw_priva - * emitted. Then the fence is stale and signaled. - */ - -- ret = ((atomic_read(&dev_priv->fence_seq) - sequence) -+ ret = ((atomic_read_unchecked(&dev_priv->fence_seq) - sequence) - > VMW_FENCE_WRAP); - - return ret; -@@ -131,7 +131,7 @@ int vmw_fallback_wait(struct vmw_private - - if (fifo_idle) - down_read(&fifo_state->rwsem); -- signal_seq = atomic_read(&dev_priv->fence_seq); -+ signal_seq = atomic_read_unchecked(&dev_priv->fence_seq); - ret = 0; - - for (;;) { -diff -urNp linux-3.0.4/drivers/hid/hid-core.c linux-3.0.4/drivers/hid/hid-core.c ---- linux-3.0.4/drivers/hid/hid-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hid/hid-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1923,7 +1923,7 @@ static bool hid_ignore(struct hid_device - - int hid_add_device(struct hid_device *hdev) - { -- static atomic_t id = ATOMIC_INIT(0); -+ static atomic_unchecked_t id = ATOMIC_INIT(0); - int ret; - - if (WARN_ON(hdev->status & HID_STAT_ADDED)) -@@ -1938,7 +1938,7 @@ int hid_add_device(struct hid_device *hd - /* XXX hack, any other cleaner solution after the driver core - * is converted to allow more than 20 bytes as the device name? */ - dev_set_name(&hdev->dev, "%04X:%04X:%04X.%04X", hdev->bus, -- hdev->vendor, hdev->product, atomic_inc_return(&id)); -+ hdev->vendor, hdev->product, atomic_inc_return_unchecked(&id)); - - hid_debug_register(hdev, dev_name(&hdev->dev)); - ret = device_add(&hdev->dev); -diff -urNp linux-3.0.4/drivers/hid/usbhid/hiddev.c linux-3.0.4/drivers/hid/usbhid/hiddev.c ---- linux-3.0.4/drivers/hid/usbhid/hiddev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hid/usbhid/hiddev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -624,7 +624,7 @@ static long hiddev_ioctl(struct file *fi - break; - - case HIDIOCAPPLICATION: -- if (arg < 0 || arg >= hid->maxapplication) -+ if (arg >= hid->maxapplication) - break; - - for (i = 0; i < hid->maxcollection; i++) -diff -urNp linux-3.0.4/drivers/hwmon/acpi_power_meter.c linux-3.0.4/drivers/hwmon/acpi_power_meter.c ---- linux-3.0.4/drivers/hwmon/acpi_power_meter.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/acpi_power_meter.c 2011-08-23 21:47:55.000000000 -0400 -@@ -316,8 +316,6 @@ static ssize_t set_trip(struct device *d - return res; - - temp /= 1000; -- if (temp < 0) -- return -EINVAL; - - mutex_lock(&resource->lock); - resource->trip[attr->index - 7] = temp; -diff -urNp linux-3.0.4/drivers/hwmon/sht15.c linux-3.0.4/drivers/hwmon/sht15.c ---- linux-3.0.4/drivers/hwmon/sht15.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/sht15.c 2011-08-23 21:47:55.000000000 -0400 -@@ -166,7 +166,7 @@ struct sht15_data { - int supply_uV; - bool supply_uV_valid; - struct work_struct update_supply_work; -- atomic_t interrupt_handled; -+ atomic_unchecked_t interrupt_handled; - }; - - /** -@@ -509,13 +509,13 @@ static int sht15_measurement(struct sht1 - return ret; - - gpio_direction_input(data->pdata->gpio_data); -- atomic_set(&data->interrupt_handled, 0); -+ atomic_set_unchecked(&data->interrupt_handled, 0); - - enable_irq(gpio_to_irq(data->pdata->gpio_data)); - if (gpio_get_value(data->pdata->gpio_data) == 0) { - disable_irq_nosync(gpio_to_irq(data->pdata->gpio_data)); - /* Only relevant if the interrupt hasn't occurred. */ -- if (!atomic_read(&data->interrupt_handled)) -+ if (!atomic_read_unchecked(&data->interrupt_handled)) - schedule_work(&data->read_work); - } - ret = wait_event_timeout(data->wait_queue, -@@ -782,7 +782,7 @@ static irqreturn_t sht15_interrupt_fired - - /* First disable the interrupt */ - disable_irq_nosync(irq); -- atomic_inc(&data->interrupt_handled); -+ atomic_inc_unchecked(&data->interrupt_handled); - /* Then schedule a reading work struct */ - if (data->state != SHT15_READING_NOTHING) - schedule_work(&data->read_work); -@@ -804,11 +804,11 @@ static void sht15_bh_read_data(struct wo - * If not, then start the interrupt again - care here as could - * have gone low in meantime so verify it hasn't! - */ -- atomic_set(&data->interrupt_handled, 0); -+ atomic_set_unchecked(&data->interrupt_handled, 0); - enable_irq(gpio_to_irq(data->pdata->gpio_data)); - /* If still not occurred or another handler has been scheduled */ - if (gpio_get_value(data->pdata->gpio_data) -- || atomic_read(&data->interrupt_handled)) -+ || atomic_read_unchecked(&data->interrupt_handled)) - return; - } - -diff -urNp linux-3.0.4/drivers/hwmon/w83791d.c linux-3.0.4/drivers/hwmon/w83791d.c ---- linux-3.0.4/drivers/hwmon/w83791d.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/hwmon/w83791d.c 2011-08-23 21:47:55.000000000 -0400 -@@ -329,8 +329,8 @@ static int w83791d_detect(struct i2c_cli - struct i2c_board_info *info); - static int w83791d_remove(struct i2c_client *client); - --static int w83791d_read(struct i2c_client *client, u8 register); --static int w83791d_write(struct i2c_client *client, u8 register, u8 value); -+static int w83791d_read(struct i2c_client *client, u8 reg); -+static int w83791d_write(struct i2c_client *client, u8 reg, u8 value); - static struct w83791d_data *w83791d_update_device(struct device *dev); - - #ifdef DEBUG -diff -urNp linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c ---- linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/busses/i2c-amd756-s4882.c 2011-08-23 21:47:55.000000000 -0400 -@@ -43,7 +43,7 @@ - extern struct i2c_adapter amd756_smbus; - - static struct i2c_adapter *s4882_adapter; --static struct i2c_algorithm *s4882_algo; -+static i2c_algorithm_no_const *s4882_algo; - - /* Wrapper access functions for multiplexed SMBus */ - static DEFINE_MUTEX(amd756_lock); -diff -urNp linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c ---- linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/busses/i2c-nforce2-s4985.c 2011-08-23 21:47:55.000000000 -0400 -@@ -41,7 +41,7 @@ - extern struct i2c_adapter *nforce2_smbus; - - static struct i2c_adapter *s4985_adapter; --static struct i2c_algorithm *s4985_algo; -+static i2c_algorithm_no_const *s4985_algo; - - /* Wrapper access functions for multiplexed SMBus */ - static DEFINE_MUTEX(nforce2_lock); -diff -urNp linux-3.0.4/drivers/i2c/i2c-mux.c linux-3.0.4/drivers/i2c/i2c-mux.c ---- linux-3.0.4/drivers/i2c/i2c-mux.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/i2c/i2c-mux.c 2011-08-23 21:47:55.000000000 -0400 -@@ -28,7 +28,7 @@ - /* multiplexer per channel data */ - struct i2c_mux_priv { - struct i2c_adapter adap; -- struct i2c_algorithm algo; -+ i2c_algorithm_no_const algo; - - struct i2c_adapter *parent; - void *mux_dev; /* the mux chip/device */ -diff -urNp linux-3.0.4/drivers/ide/ide-cd.c linux-3.0.4/drivers/ide/ide-cd.c ---- linux-3.0.4/drivers/ide/ide-cd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/ide-cd.c 2011-08-23 21:47:55.000000000 -0400 -@@ -769,7 +769,7 @@ static void cdrom_do_block_pc(ide_drive_ - alignment = queue_dma_alignment(q) | q->dma_pad_mask; - if ((unsigned long)buf & alignment - || blk_rq_bytes(rq) & q->dma_pad_mask -- || object_is_on_stack(buf)) -+ || object_starts_on_stack(buf)) - drive->dma = 0; - } - } -diff -urNp linux-3.0.4/drivers/ide/ide-floppy.c linux-3.0.4/drivers/ide/ide-floppy.c ---- linux-3.0.4/drivers/ide/ide-floppy.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/ide-floppy.c 2011-08-23 21:48:14.000000000 -0400 -@@ -379,6 +379,8 @@ static int ide_floppy_get_capacity(ide_d - u8 pc_buf[256], header_len, desc_cnt; - int i, rc = 1, blocks, length; - -+ pax_track_stack(); -+ - ide_debug_log(IDE_DBG_FUNC, "enter"); - - drive->bios_cyl = 0; -diff -urNp linux-3.0.4/drivers/ide/setup-pci.c linux-3.0.4/drivers/ide/setup-pci.c ---- linux-3.0.4/drivers/ide/setup-pci.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/ide/setup-pci.c 2011-08-23 21:48:14.000000000 -0400 -@@ -542,6 +542,8 @@ int ide_pci_init_two(struct pci_dev *dev - int ret, i, n_ports = dev2 ? 4 : 2; - struct ide_hw hw[4], *hws[] = { NULL, NULL, NULL, NULL }; - -+ pax_track_stack(); -+ - for (i = 0; i < n_ports / 2; i++) { - ret = ide_setup_pci_controller(pdev[i], d, !i); - if (ret < 0) -diff -urNp linux-3.0.4/drivers/infiniband/core/cm.c linux-3.0.4/drivers/infiniband/core/cm.c ---- linux-3.0.4/drivers/infiniband/core/cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/core/cm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -113,7 +113,7 @@ static char const counter_group_names[CM - - struct cm_counter_group { - struct kobject obj; -- atomic_long_t counter[CM_ATTR_COUNT]; -+ atomic_long_unchecked_t counter[CM_ATTR_COUNT]; - }; - - struct cm_counter_attribute { -@@ -1387,7 +1387,7 @@ static void cm_dup_req_handler(struct cm - struct ib_mad_send_buf *msg = NULL; - int ret; - -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_REQ_COUNTER]); - - /* Quick state check to discard duplicate REQs. */ -@@ -1765,7 +1765,7 @@ static void cm_dup_rep_handler(struct cm - if (!cm_id_priv) - return; - -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_REP_COUNTER]); - ret = cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg); - if (ret) -@@ -1932,7 +1932,7 @@ static int cm_rtu_handler(struct cm_work - if (cm_id_priv->id.state != IB_CM_REP_SENT && - cm_id_priv->id.state != IB_CM_MRA_REP_RCVD) { - spin_unlock_irq(&cm_id_priv->lock); -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_RTU_COUNTER]); - goto out; - } -@@ -2115,7 +2115,7 @@ static int cm_dreq_handler(struct cm_wor - cm_id_priv = cm_acquire_id(dreq_msg->remote_comm_id, - dreq_msg->local_comm_id); - if (!cm_id_priv) { -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - cm_issue_drep(work->port, work->mad_recv_wc); - return -EINVAL; -@@ -2140,7 +2140,7 @@ static int cm_dreq_handler(struct cm_wor - case IB_CM_MRA_REP_RCVD: - break; - case IB_CM_TIMEWAIT: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) - goto unlock; -@@ -2154,7 +2154,7 @@ static int cm_dreq_handler(struct cm_wor - cm_free_msg(msg); - goto deref; - case IB_CM_DREQ_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_DREQ_COUNTER]); - goto unlock; - default: -@@ -2521,7 +2521,7 @@ static int cm_mra_handler(struct cm_work - ib_modify_mad(cm_id_priv->av.port->mad_agent, - cm_id_priv->msg, timeout)) { - if (cm_id_priv->id.lap_state == IB_CM_MRA_LAP_RCVD) -- atomic_long_inc(&work->port-> -+ atomic_long_inc_unchecked(&work->port-> - counter_group[CM_RECV_DUPLICATES]. - counter[CM_MRA_COUNTER]); - goto out; -@@ -2530,7 +2530,7 @@ static int cm_mra_handler(struct cm_work - break; - case IB_CM_MRA_REQ_RCVD: - case IB_CM_MRA_REP_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_MRA_COUNTER]); - /* fall through */ - default: -@@ -2692,7 +2692,7 @@ static int cm_lap_handler(struct cm_work - case IB_CM_LAP_IDLE: - break; - case IB_CM_MRA_LAP_SENT: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_LAP_COUNTER]); - if (cm_alloc_response_msg(work->port, work->mad_recv_wc, &msg)) - goto unlock; -@@ -2708,7 +2708,7 @@ static int cm_lap_handler(struct cm_work - cm_free_msg(msg); - goto deref; - case IB_CM_LAP_RCVD: -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_LAP_COUNTER]); - goto unlock; - default: -@@ -2992,7 +2992,7 @@ static int cm_sidr_req_handler(struct cm - cur_cm_id_priv = cm_insert_remote_sidr(cm_id_priv); - if (cur_cm_id_priv) { - spin_unlock_irq(&cm.lock); -- atomic_long_inc(&work->port->counter_group[CM_RECV_DUPLICATES]. -+ atomic_long_inc_unchecked(&work->port->counter_group[CM_RECV_DUPLICATES]. - counter[CM_SIDR_REQ_COUNTER]); - goto out; /* Duplicate message. */ - } -@@ -3204,10 +3204,10 @@ static void cm_send_handler(struct ib_ma - if (!msg->context[0] && (attr_index != CM_REJ_COUNTER)) - msg->retries = 1; - -- atomic_long_add(1 + msg->retries, -+ atomic_long_add_unchecked(1 + msg->retries, - &port->counter_group[CM_XMIT].counter[attr_index]); - if (msg->retries) -- atomic_long_add(msg->retries, -+ atomic_long_add_unchecked(msg->retries, - &port->counter_group[CM_XMIT_RETRIES]. - counter[attr_index]); - -@@ -3417,7 +3417,7 @@ static void cm_recv_handler(struct ib_ma - } - - attr_id = be16_to_cpu(mad_recv_wc->recv_buf.mad->mad_hdr.attr_id); -- atomic_long_inc(&port->counter_group[CM_RECV]. -+ atomic_long_inc_unchecked(&port->counter_group[CM_RECV]. - counter[attr_id - CM_ATTR_ID_OFFSET]); - - work = kmalloc(sizeof *work + sizeof(struct ib_sa_path_rec) * paths, -@@ -3615,7 +3615,7 @@ static ssize_t cm_show_counter(struct ko - cm_attr = container_of(attr, struct cm_counter_attribute, attr); - - return sprintf(buf, "%ld\n", -- atomic_long_read(&group->counter[cm_attr->index])); -+ atomic_long_read_unchecked(&group->counter[cm_attr->index])); - } - - static const struct sysfs_ops cm_counter_ops = { -diff -urNp linux-3.0.4/drivers/infiniband/core/fmr_pool.c linux-3.0.4/drivers/infiniband/core/fmr_pool.c ---- linux-3.0.4/drivers/infiniband/core/fmr_pool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/core/fmr_pool.c 2011-08-23 21:47:55.000000000 -0400 -@@ -97,8 +97,8 @@ struct ib_fmr_pool { - - struct task_struct *thread; - -- atomic_t req_ser; -- atomic_t flush_ser; -+ atomic_unchecked_t req_ser; -+ atomic_unchecked_t flush_ser; - - wait_queue_head_t force_wait; - }; -@@ -179,10 +179,10 @@ static int ib_fmr_cleanup_thread(void *p - struct ib_fmr_pool *pool = pool_ptr; - - do { -- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) < 0) { -+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) < 0) { - ib_fmr_batch_release(pool); - -- atomic_inc(&pool->flush_ser); -+ atomic_inc_unchecked(&pool->flush_ser); - wake_up_interruptible(&pool->force_wait); - - if (pool->flush_function) -@@ -190,7 +190,7 @@ static int ib_fmr_cleanup_thread(void *p - } - - set_current_state(TASK_INTERRUPTIBLE); -- if (atomic_read(&pool->flush_ser) - atomic_read(&pool->req_ser) >= 0 && -+ if (atomic_read_unchecked(&pool->flush_ser) - atomic_read_unchecked(&pool->req_ser) >= 0 && - !kthread_should_stop()) - schedule(); - __set_current_state(TASK_RUNNING); -@@ -282,8 +282,8 @@ struct ib_fmr_pool *ib_create_fmr_pool(s - pool->dirty_watermark = params->dirty_watermark; - pool->dirty_len = 0; - spin_lock_init(&pool->pool_lock); -- atomic_set(&pool->req_ser, 0); -- atomic_set(&pool->flush_ser, 0); -+ atomic_set_unchecked(&pool->req_ser, 0); -+ atomic_set_unchecked(&pool->flush_ser, 0); - init_waitqueue_head(&pool->force_wait); - - pool->thread = kthread_run(ib_fmr_cleanup_thread, -@@ -411,11 +411,11 @@ int ib_flush_fmr_pool(struct ib_fmr_pool - } - spin_unlock_irq(&pool->pool_lock); - -- serial = atomic_inc_return(&pool->req_ser); -+ serial = atomic_inc_return_unchecked(&pool->req_ser); - wake_up_process(pool->thread); - - if (wait_event_interruptible(pool->force_wait, -- atomic_read(&pool->flush_ser) - serial >= 0)) -+ atomic_read_unchecked(&pool->flush_ser) - serial >= 0)) - return -EINTR; - - return 0; -@@ -525,7 +525,7 @@ int ib_fmr_pool_unmap(struct ib_pool_fmr - } else { - list_add_tail(&fmr->list, &pool->dirty_list); - if (++pool->dirty_len >= pool->dirty_watermark) { -- atomic_inc(&pool->req_ser); -+ atomic_inc_unchecked(&pool->req_ser); - wake_up_process(pool->thread); - } - } -diff -urNp linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c ---- linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/cxgb4/mem.c 2011-08-23 21:47:55.000000000 -0400 -@@ -122,7 +122,7 @@ static int write_tpt_entry(struct c4iw_r - int err; - struct fw_ri_tpte tpt; - u32 stag_idx; -- static atomic_t key; -+ static atomic_unchecked_t key; - - if (c4iw_fatal_error(rdev)) - return -EIO; -@@ -135,7 +135,7 @@ static int write_tpt_entry(struct c4iw_r - &rdev->resource.tpt_fifo_lock); - if (!stag_idx) - return -ENOMEM; -- *stag = (stag_idx << 8) | (atomic_inc_return(&key) & 0xff); -+ *stag = (stag_idx << 8) | (atomic_inc_return_unchecked(&key) & 0xff); - } - PDBG("%s stag_state 0x%0x type 0x%0x pdid 0x%0x, stag_idx 0x%x\n", - __func__, stag_state, type, pdid, stag_idx); -diff -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_fs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -113,6 +113,8 @@ static ssize_t atomic_counters_read(stru - struct infinipath_counters counters; - struct ipath_devdata *dd; - -+ pax_track_stack(); -+ - dd = file->f_path.dentry->d_inode->i_private; - dd->ipath_f_read_counters(dd, &counters); - -diff -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_rc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1868,7 +1868,7 @@ void ipath_rc_rcv(struct ipath_ibdev *de - struct ib_atomic_eth *ateth; - struct ipath_ack_entry *e; - u64 vaddr; -- atomic64_t *maddr; -+ atomic64_unchecked_t *maddr; - u64 sdata; - u32 rkey; - u8 next; -@@ -1903,11 +1903,11 @@ void ipath_rc_rcv(struct ipath_ibdev *de - IB_ACCESS_REMOTE_ATOMIC))) - goto nack_acc_unlck; - /* Perform atomic OP and save result. */ -- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; -+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; - sdata = be64_to_cpu(ateth->swap_data); - e = &qp->s_ack_queue[qp->r_head_ack_queue]; - e->atomic_data = (opcode == OP(FETCH_ADD)) ? -- (u64) atomic64_add_return(sdata, maddr) - sdata : -+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : - (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, - be64_to_cpu(ateth->compare_data), - sdata); -diff -urNp linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c ---- linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/ipath/ipath_ruc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -266,7 +266,7 @@ static void ipath_ruc_loopback(struct ip - unsigned long flags; - struct ib_wc wc; - u64 sdata; -- atomic64_t *maddr; -+ atomic64_unchecked_t *maddr; - enum ib_wc_status send_status; - - /* -@@ -382,11 +382,11 @@ again: - IB_ACCESS_REMOTE_ATOMIC))) - goto acc_err; - /* Perform atomic OP and save result. */ -- maddr = (atomic64_t *) qp->r_sge.sge.vaddr; -+ maddr = (atomic64_unchecked_t *) qp->r_sge.sge.vaddr; - sdata = wqe->wr.wr.atomic.compare_add; - *(u64 *) sqp->s_sge.sge.vaddr = - (wqe->wr.opcode == IB_WR_ATOMIC_FETCH_AND_ADD) ? -- (u64) atomic64_add_return(sdata, maddr) - sdata : -+ (u64) atomic64_add_return_unchecked(sdata, maddr) - sdata : - (u64) cmpxchg((u64 *) qp->r_sge.sge.vaddr, - sdata, wqe->wr.wr.atomic.swap); - goto send_comp; -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes.c linux-3.0.4/drivers/infiniband/hw/nes/nes.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes.c 2011-08-23 21:47:55.000000000 -0400 -@@ -103,7 +103,7 @@ MODULE_PARM_DESC(limit_maxrdreqsz, "Limi - LIST_HEAD(nes_adapter_list); - static LIST_HEAD(nes_dev_list); - --atomic_t qps_destroyed; -+atomic_unchecked_t qps_destroyed; - - static unsigned int ee_flsh_adapter; - static unsigned int sysfs_nonidx_addr; -@@ -275,7 +275,7 @@ static void nes_cqp_rem_ref_callback(str - struct nes_qp *nesqp = cqp_request->cqp_callback_pointer; - struct nes_adapter *nesadapter = nesdev->nesadapter; - -- atomic_inc(&qps_destroyed); -+ atomic_inc_unchecked(&qps_destroyed); - - /* Free the control structures */ - -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_cm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -68,14 +68,14 @@ u32 cm_packets_dropped; - u32 cm_packets_retrans; - u32 cm_packets_created; - u32 cm_packets_received; --atomic_t cm_listens_created; --atomic_t cm_listens_destroyed; -+atomic_unchecked_t cm_listens_created; -+atomic_unchecked_t cm_listens_destroyed; - u32 cm_backlog_drops; --atomic_t cm_loopbacks; --atomic_t cm_nodes_created; --atomic_t cm_nodes_destroyed; --atomic_t cm_accel_dropped_pkts; --atomic_t cm_resets_recvd; -+atomic_unchecked_t cm_loopbacks; -+atomic_unchecked_t cm_nodes_created; -+atomic_unchecked_t cm_nodes_destroyed; -+atomic_unchecked_t cm_accel_dropped_pkts; -+atomic_unchecked_t cm_resets_recvd; - - static inline int mini_cm_accelerated(struct nes_cm_core *, - struct nes_cm_node *); -@@ -151,13 +151,13 @@ static struct nes_cm_ops nes_cm_api = { - - static struct nes_cm_core *g_cm_core; - --atomic_t cm_connects; --atomic_t cm_accepts; --atomic_t cm_disconnects; --atomic_t cm_closes; --atomic_t cm_connecteds; --atomic_t cm_connect_reqs; --atomic_t cm_rejects; -+atomic_unchecked_t cm_connects; -+atomic_unchecked_t cm_accepts; -+atomic_unchecked_t cm_disconnects; -+atomic_unchecked_t cm_closes; -+atomic_unchecked_t cm_connecteds; -+atomic_unchecked_t cm_connect_reqs; -+atomic_unchecked_t cm_rejects; - - - /** -@@ -1045,7 +1045,7 @@ static int mini_cm_dec_refcnt_listen(str - kfree(listener); - listener = NULL; - ret = 0; -- atomic_inc(&cm_listens_destroyed); -+ atomic_inc_unchecked(&cm_listens_destroyed); - } else { - spin_unlock_irqrestore(&cm_core->listen_list_lock, flags); - } -@@ -1240,7 +1240,7 @@ static struct nes_cm_node *make_cm_node( - cm_node->rem_mac); - - add_hte_node(cm_core, cm_node); -- atomic_inc(&cm_nodes_created); -+ atomic_inc_unchecked(&cm_nodes_created); - - return cm_node; - } -@@ -1298,7 +1298,7 @@ static int rem_ref_cm_node(struct nes_cm - } - - atomic_dec(&cm_core->node_cnt); -- atomic_inc(&cm_nodes_destroyed); -+ atomic_inc_unchecked(&cm_nodes_destroyed); - nesqp = cm_node->nesqp; - if (nesqp) { - nesqp->cm_node = NULL; -@@ -1365,7 +1365,7 @@ static int process_options(struct nes_cm - - static void drop_packet(struct sk_buff *skb) - { -- atomic_inc(&cm_accel_dropped_pkts); -+ atomic_inc_unchecked(&cm_accel_dropped_pkts); - dev_kfree_skb_any(skb); - } - -@@ -1428,7 +1428,7 @@ static void handle_rst_pkt(struct nes_cm - { - - int reset = 0; /* whether to send reset in case of err.. */ -- atomic_inc(&cm_resets_recvd); -+ atomic_inc_unchecked(&cm_resets_recvd); - nes_debug(NES_DBG_CM, "Received Reset, cm_node = %p, state = %u." - " refcnt=%d\n", cm_node, cm_node->state, - atomic_read(&cm_node->ref_count)); -@@ -2057,7 +2057,7 @@ static struct nes_cm_node *mini_cm_conne - rem_ref_cm_node(cm_node->cm_core, cm_node); - return NULL; - } -- atomic_inc(&cm_loopbacks); -+ atomic_inc_unchecked(&cm_loopbacks); - loopbackremotenode->loopbackpartner = cm_node; - loopbackremotenode->tcp_cntxt.rcv_wscale = - NES_CM_DEFAULT_RCV_WND_SCALE; -@@ -2332,7 +2332,7 @@ static int mini_cm_recv_pkt(struct nes_c - add_ref_cm_node(cm_node); - } else if (cm_node->state == NES_CM_STATE_TSA) { - rem_ref_cm_node(cm_core, cm_node); -- atomic_inc(&cm_accel_dropped_pkts); -+ atomic_inc_unchecked(&cm_accel_dropped_pkts); - dev_kfree_skb_any(skb); - break; - } -@@ -2638,7 +2638,7 @@ static int nes_cm_disconn_true(struct ne - - if ((cm_id) && (cm_id->event_handler)) { - if (issue_disconn) { -- atomic_inc(&cm_disconnects); -+ atomic_inc_unchecked(&cm_disconnects); - cm_event.event = IW_CM_EVENT_DISCONNECT; - cm_event.status = disconn_status; - cm_event.local_addr = cm_id->local_addr; -@@ -2660,7 +2660,7 @@ static int nes_cm_disconn_true(struct ne - } - - if (issue_close) { -- atomic_inc(&cm_closes); -+ atomic_inc_unchecked(&cm_closes); - nes_disconnect(nesqp, 1); - - cm_id->provider_data = nesqp; -@@ -2791,7 +2791,7 @@ int nes_accept(struct iw_cm_id *cm_id, s - - nes_debug(NES_DBG_CM, "QP%u, cm_node=%p, jiffies = %lu listener = %p\n", - nesqp->hwqp.qp_id, cm_node, jiffies, cm_node->listener); -- atomic_inc(&cm_accepts); -+ atomic_inc_unchecked(&cm_accepts); - - nes_debug(NES_DBG_CM, "netdev refcnt = %u.\n", - netdev_refcnt_read(nesvnic->netdev)); -@@ -3001,7 +3001,7 @@ int nes_reject(struct iw_cm_id *cm_id, c - - struct nes_cm_core *cm_core; - -- atomic_inc(&cm_rejects); -+ atomic_inc_unchecked(&cm_rejects); - cm_node = (struct nes_cm_node *) cm_id->provider_data; - loopback = cm_node->loopbackpartner; - cm_core = cm_node->cm_core; -@@ -3067,7 +3067,7 @@ int nes_connect(struct iw_cm_id *cm_id, - ntohl(cm_id->local_addr.sin_addr.s_addr), - ntohs(cm_id->local_addr.sin_port)); - -- atomic_inc(&cm_connects); -+ atomic_inc_unchecked(&cm_connects); - nesqp->active_conn = 1; - - /* cache the cm_id in the qp */ -@@ -3173,7 +3173,7 @@ int nes_create_listen(struct iw_cm_id *c - g_cm_core->api->stop_listener(g_cm_core, (void *)cm_node); - return err; - } -- atomic_inc(&cm_listens_created); -+ atomic_inc_unchecked(&cm_listens_created); - } - - cm_id->add_ref(cm_id); -@@ -3278,7 +3278,7 @@ static void cm_event_connected(struct ne - if (nesqp->destroyed) { - return; - } -- atomic_inc(&cm_connecteds); -+ atomic_inc_unchecked(&cm_connecteds); - nes_debug(NES_DBG_CM, "QP%u attempting to connect to 0x%08X:0x%04X on" - " local port 0x%04X. jiffies = %lu.\n", - nesqp->hwqp.qp_id, -@@ -3493,7 +3493,7 @@ static void cm_event_reset(struct nes_cm - - cm_id->add_ref(cm_id); - ret = cm_id->event_handler(cm_id, &cm_event); -- atomic_inc(&cm_closes); -+ atomic_inc_unchecked(&cm_closes); - cm_event.event = IW_CM_EVENT_CLOSE; - cm_event.status = 0; - cm_event.provider_data = cm_id->provider_data; -@@ -3529,7 +3529,7 @@ static void cm_event_mpa_req(struct nes_ - return; - cm_id = cm_node->cm_id; - -- atomic_inc(&cm_connect_reqs); -+ atomic_inc_unchecked(&cm_connect_reqs); - nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", - cm_node, cm_id, jiffies); - -@@ -3567,7 +3567,7 @@ static void cm_event_mpa_reject(struct n - return; - cm_id = cm_node->cm_id; - -- atomic_inc(&cm_connect_reqs); -+ atomic_inc_unchecked(&cm_connect_reqs); - nes_debug(NES_DBG_CM, "cm_node = %p - cm_id = %p, jiffies = %lu\n", - cm_node, cm_id, jiffies); - -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes.h linux-3.0.4/drivers/infiniband/hw/nes/nes.h ---- linux-3.0.4/drivers/infiniband/hw/nes/nes.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes.h 2011-08-23 21:47:55.000000000 -0400 -@@ -175,17 +175,17 @@ extern unsigned int nes_debug_level; - extern unsigned int wqm_quanta; - extern struct list_head nes_adapter_list; - --extern atomic_t cm_connects; --extern atomic_t cm_accepts; --extern atomic_t cm_disconnects; --extern atomic_t cm_closes; --extern atomic_t cm_connecteds; --extern atomic_t cm_connect_reqs; --extern atomic_t cm_rejects; --extern atomic_t mod_qp_timouts; --extern atomic_t qps_created; --extern atomic_t qps_destroyed; --extern atomic_t sw_qps_destroyed; -+extern atomic_unchecked_t cm_connects; -+extern atomic_unchecked_t cm_accepts; -+extern atomic_unchecked_t cm_disconnects; -+extern atomic_unchecked_t cm_closes; -+extern atomic_unchecked_t cm_connecteds; -+extern atomic_unchecked_t cm_connect_reqs; -+extern atomic_unchecked_t cm_rejects; -+extern atomic_unchecked_t mod_qp_timouts; -+extern atomic_unchecked_t qps_created; -+extern atomic_unchecked_t qps_destroyed; -+extern atomic_unchecked_t sw_qps_destroyed; - extern u32 mh_detected; - extern u32 mh_pauses_sent; - extern u32 cm_packets_sent; -@@ -194,14 +194,14 @@ extern u32 cm_packets_created; - extern u32 cm_packets_received; - extern u32 cm_packets_dropped; - extern u32 cm_packets_retrans; --extern atomic_t cm_listens_created; --extern atomic_t cm_listens_destroyed; -+extern atomic_unchecked_t cm_listens_created; -+extern atomic_unchecked_t cm_listens_destroyed; - extern u32 cm_backlog_drops; --extern atomic_t cm_loopbacks; --extern atomic_t cm_nodes_created; --extern atomic_t cm_nodes_destroyed; --extern atomic_t cm_accel_dropped_pkts; --extern atomic_t cm_resets_recvd; -+extern atomic_unchecked_t cm_loopbacks; -+extern atomic_unchecked_t cm_nodes_created; -+extern atomic_unchecked_t cm_nodes_destroyed; -+extern atomic_unchecked_t cm_accel_dropped_pkts; -+extern atomic_unchecked_t cm_resets_recvd; - - extern u32 int_mod_timer_init; - extern u32 int_mod_cq_depth_256; -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_nic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1274,31 +1274,31 @@ static void nes_netdev_get_ethtool_stats - target_stat_values[++index] = mh_detected; - target_stat_values[++index] = mh_pauses_sent; - target_stat_values[++index] = nesvnic->endnode_ipv4_tcp_retransmits; -- target_stat_values[++index] = atomic_read(&cm_connects); -- target_stat_values[++index] = atomic_read(&cm_accepts); -- target_stat_values[++index] = atomic_read(&cm_disconnects); -- target_stat_values[++index] = atomic_read(&cm_connecteds); -- target_stat_values[++index] = atomic_read(&cm_connect_reqs); -- target_stat_values[++index] = atomic_read(&cm_rejects); -- target_stat_values[++index] = atomic_read(&mod_qp_timouts); -- target_stat_values[++index] = atomic_read(&qps_created); -- target_stat_values[++index] = atomic_read(&sw_qps_destroyed); -- target_stat_values[++index] = atomic_read(&qps_destroyed); -- target_stat_values[++index] = atomic_read(&cm_closes); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connects); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_accepts); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_disconnects); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connecteds); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_connect_reqs); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_rejects); -+ target_stat_values[++index] = atomic_read_unchecked(&mod_qp_timouts); -+ target_stat_values[++index] = atomic_read_unchecked(&qps_created); -+ target_stat_values[++index] = atomic_read_unchecked(&sw_qps_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&qps_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_closes); - target_stat_values[++index] = cm_packets_sent; - target_stat_values[++index] = cm_packets_bounced; - target_stat_values[++index] = cm_packets_created; - target_stat_values[++index] = cm_packets_received; - target_stat_values[++index] = cm_packets_dropped; - target_stat_values[++index] = cm_packets_retrans; -- target_stat_values[++index] = atomic_read(&cm_listens_created); -- target_stat_values[++index] = atomic_read(&cm_listens_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_created); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_listens_destroyed); - target_stat_values[++index] = cm_backlog_drops; -- target_stat_values[++index] = atomic_read(&cm_loopbacks); -- target_stat_values[++index] = atomic_read(&cm_nodes_created); -- target_stat_values[++index] = atomic_read(&cm_nodes_destroyed); -- target_stat_values[++index] = atomic_read(&cm_accel_dropped_pkts); -- target_stat_values[++index] = atomic_read(&cm_resets_recvd); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_loopbacks); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_created); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_nodes_destroyed); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_accel_dropped_pkts); -+ target_stat_values[++index] = atomic_read_unchecked(&cm_resets_recvd); - target_stat_values[++index] = nesadapter->free_4kpbl; - target_stat_values[++index] = nesadapter->free_256pbl; - target_stat_values[++index] = int_mod_timer_init; -diff -urNp linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c ---- linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/nes/nes_verbs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -46,9 +46,9 @@ - - #include - --atomic_t mod_qp_timouts; --atomic_t qps_created; --atomic_t sw_qps_destroyed; -+atomic_unchecked_t mod_qp_timouts; -+atomic_unchecked_t qps_created; -+atomic_unchecked_t sw_qps_destroyed; - - static void nes_unregister_ofa_device(struct nes_ib_device *nesibdev); - -@@ -1141,7 +1141,7 @@ static struct ib_qp *nes_create_qp(struc - if (init_attr->create_flags) - return ERR_PTR(-EINVAL); - -- atomic_inc(&qps_created); -+ atomic_inc_unchecked(&qps_created); - switch (init_attr->qp_type) { - case IB_QPT_RC: - if (nes_drv_opt & NES_DRV_OPT_NO_INLINE_DATA) { -@@ -1470,7 +1470,7 @@ static int nes_destroy_qp(struct ib_qp * - struct iw_cm_event cm_event; - int ret; - -- atomic_inc(&sw_qps_destroyed); -+ atomic_inc_unchecked(&sw_qps_destroyed); - nesqp->destroyed = 1; - - /* Blow away the connection if it exists. */ -diff -urNp linux-3.0.4/drivers/infiniband/hw/qib/qib.h linux-3.0.4/drivers/infiniband/hw/qib/qib.h ---- linux-3.0.4/drivers/infiniband/hw/qib/qib.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/infiniband/hw/qib/qib.h 2011-08-23 21:47:55.000000000 -0400 -@@ -51,6 +51,7 @@ - #include - #include - #include -+#include - - #include "qib_common.h" - #include "qib_verbs.h" -diff -urNp linux-3.0.4/drivers/input/gameport/gameport.c linux-3.0.4/drivers/input/gameport/gameport.c ---- linux-3.0.4/drivers/input/gameport/gameport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/gameport/gameport.c 2011-08-23 21:47:55.000000000 -0400 -@@ -488,14 +488,14 @@ EXPORT_SYMBOL(gameport_set_phys); - */ - static void gameport_init_port(struct gameport *gameport) - { -- static atomic_t gameport_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t gameport_no = ATOMIC_INIT(0); - - __module_get(THIS_MODULE); - - mutex_init(&gameport->drv_mutex); - device_initialize(&gameport->dev); - dev_set_name(&gameport->dev, "gameport%lu", -- (unsigned long)atomic_inc_return(&gameport_no) - 1); -+ (unsigned long)atomic_inc_return_unchecked(&gameport_no) - 1); - gameport->dev.bus = &gameport_bus; - gameport->dev.release = gameport_release_port; - if (gameport->parent) -diff -urNp linux-3.0.4/drivers/input/input.c linux-3.0.4/drivers/input/input.c ---- linux-3.0.4/drivers/input/input.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/input.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1814,7 +1814,7 @@ static void input_cleanse_bitmasks(struc - */ - int input_register_device(struct input_dev *dev) - { -- static atomic_t input_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t input_no = ATOMIC_INIT(0); - struct input_handler *handler; - const char *path; - int error; -@@ -1851,7 +1851,7 @@ int input_register_device(struct input_d - dev->setkeycode = input_default_setkeycode; - - dev_set_name(&dev->dev, "input%ld", -- (unsigned long) atomic_inc_return(&input_no) - 1); -+ (unsigned long) atomic_inc_return_unchecked(&input_no) - 1); - - error = device_add(&dev->dev); - if (error) -diff -urNp linux-3.0.4/drivers/input/joystick/sidewinder.c linux-3.0.4/drivers/input/joystick/sidewinder.c ---- linux-3.0.4/drivers/input/joystick/sidewinder.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/joystick/sidewinder.c 2011-08-23 21:48:14.000000000 -0400 -@@ -30,6 +30,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -428,6 +429,8 @@ static int sw_read(struct sw *sw) - unsigned char buf[SW_LENGTH]; - int i; - -+ pax_track_stack(); -+ - i = sw_read_packet(sw->gameport, buf, sw->length, 0); - - if (sw->type == SW_ID_3DP && sw->length == 66 && i != 66) { /* Broken packet, try to fix */ -diff -urNp linux-3.0.4/drivers/input/joystick/xpad.c linux-3.0.4/drivers/input/joystick/xpad.c ---- linux-3.0.4/drivers/input/joystick/xpad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/joystick/xpad.c 2011-08-23 21:47:55.000000000 -0400 -@@ -689,7 +689,7 @@ static void xpad_led_set(struct led_clas - - static int xpad_led_probe(struct usb_xpad *xpad) - { -- static atomic_t led_seq = ATOMIC_INIT(0); -+ static atomic_unchecked_t led_seq = ATOMIC_INIT(0); - long led_no; - struct xpad_led *led; - struct led_classdev *led_cdev; -@@ -702,7 +702,7 @@ static int xpad_led_probe(struct usb_xpa - if (!led) - return -ENOMEM; - -- led_no = (long)atomic_inc_return(&led_seq) - 1; -+ led_no = (long)atomic_inc_return_unchecked(&led_seq) - 1; - - snprintf(led->name, sizeof(led->name), "xpad%ld", led_no); - led->xpad = xpad; -diff -urNp linux-3.0.4/drivers/input/mousedev.c linux-3.0.4/drivers/input/mousedev.c ---- linux-3.0.4/drivers/input/mousedev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/mousedev.c 2011-08-23 21:47:55.000000000 -0400 -@@ -763,7 +763,7 @@ static ssize_t mousedev_read(struct file - - spin_unlock_irq(&client->packet_lock); - -- if (copy_to_user(buffer, data, count)) -+ if (count > sizeof(data) || copy_to_user(buffer, data, count)) - return -EFAULT; - - return count; -diff -urNp linux-3.0.4/drivers/input/serio/serio.c linux-3.0.4/drivers/input/serio/serio.c ---- linux-3.0.4/drivers/input/serio/serio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/input/serio/serio.c 2011-08-23 21:47:55.000000000 -0400 -@@ -497,7 +497,7 @@ static void serio_release_port(struct de - */ - static void serio_init_port(struct serio *serio) - { -- static atomic_t serio_no = ATOMIC_INIT(0); -+ static atomic_unchecked_t serio_no = ATOMIC_INIT(0); - - __module_get(THIS_MODULE); - -@@ -508,7 +508,7 @@ static void serio_init_port(struct serio - mutex_init(&serio->drv_mutex); - device_initialize(&serio->dev); - dev_set_name(&serio->dev, "serio%ld", -- (long)atomic_inc_return(&serio_no) - 1); -+ (long)atomic_inc_return_unchecked(&serio_no) - 1); - serio->dev.bus = &serio_bus; - serio->dev.release = serio_release_port; - serio->dev.groups = serio_device_attr_groups; -diff -urNp linux-3.0.4/drivers/isdn/capi/capi.c linux-3.0.4/drivers/isdn/capi/capi.c ---- linux-3.0.4/drivers/isdn/capi/capi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/capi/capi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -83,8 +83,8 @@ struct capiminor { - - struct capi20_appl *ap; - u32 ncci; -- atomic_t datahandle; -- atomic_t msgid; -+ atomic_unchecked_t datahandle; -+ atomic_unchecked_t msgid; - - struct tty_port port; - int ttyinstop; -@@ -397,7 +397,7 @@ gen_data_b3_resp_for(struct capiminor *m - capimsg_setu16(s, 2, mp->ap->applid); - capimsg_setu8 (s, 4, CAPI_DATA_B3); - capimsg_setu8 (s, 5, CAPI_RESP); -- capimsg_setu16(s, 6, atomic_inc_return(&mp->msgid)); -+ capimsg_setu16(s, 6, atomic_inc_return_unchecked(&mp->msgid)); - capimsg_setu32(s, 8, mp->ncci); - capimsg_setu16(s, 12, datahandle); - } -@@ -518,14 +518,14 @@ static void handle_minor_send(struct cap - mp->outbytes -= len; - spin_unlock_bh(&mp->outlock); - -- datahandle = atomic_inc_return(&mp->datahandle); -+ datahandle = atomic_inc_return_unchecked(&mp->datahandle); - skb_push(skb, CAPI_DATA_B3_REQ_LEN); - memset(skb->data, 0, CAPI_DATA_B3_REQ_LEN); - capimsg_setu16(skb->data, 0, CAPI_DATA_B3_REQ_LEN); - capimsg_setu16(skb->data, 2, mp->ap->applid); - capimsg_setu8 (skb->data, 4, CAPI_DATA_B3); - capimsg_setu8 (skb->data, 5, CAPI_REQ); -- capimsg_setu16(skb->data, 6, atomic_inc_return(&mp->msgid)); -+ capimsg_setu16(skb->data, 6, atomic_inc_return_unchecked(&mp->msgid)); - capimsg_setu32(skb->data, 8, mp->ncci); /* NCCI */ - capimsg_setu32(skb->data, 12, (u32)(long)skb->data);/* Data32 */ - capimsg_setu16(skb->data, 16, len); /* Data length */ -diff -urNp linux-3.0.4/drivers/isdn/gigaset/common.c linux-3.0.4/drivers/isdn/gigaset/common.c ---- linux-3.0.4/drivers/isdn/gigaset/common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/common.c 2011-08-23 21:47:55.000000000 -0400 -@@ -723,7 +723,7 @@ struct cardstate *gigaset_initcs(struct - cs->commands_pending = 0; - cs->cur_at_seq = 0; - cs->gotfwver = -1; -- cs->open_count = 0; -+ local_set(&cs->open_count, 0); - cs->dev = NULL; - cs->tty = NULL; - cs->tty_dev = NULL; -diff -urNp linux-3.0.4/drivers/isdn/gigaset/gigaset.h linux-3.0.4/drivers/isdn/gigaset/gigaset.h ---- linux-3.0.4/drivers/isdn/gigaset/gigaset.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/gigaset.h 2011-08-23 21:47:55.000000000 -0400 -@@ -35,6 +35,7 @@ - #include - #include - #include -+#include - - #define GIG_VERSION {0, 5, 0, 0} - #define GIG_COMPAT {0, 4, 0, 0} -@@ -433,7 +434,7 @@ struct cardstate { - spinlock_t cmdlock; - unsigned curlen, cmdbytes; - -- unsigned open_count; -+ local_t open_count; - struct tty_struct *tty; - struct tasklet_struct if_wake_tasklet; - unsigned control_state; -diff -urNp linux-3.0.4/drivers/isdn/gigaset/interface.c linux-3.0.4/drivers/isdn/gigaset/interface.c ---- linux-3.0.4/drivers/isdn/gigaset/interface.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/gigaset/interface.c 2011-08-23 21:47:55.000000000 -0400 -@@ -162,9 +162,7 @@ static int if_open(struct tty_struct *tt - } - tty->driver_data = cs; - -- ++cs->open_count; -- -- if (cs->open_count == 1) { -+ if (local_inc_return(&cs->open_count) == 1) { - spin_lock_irqsave(&cs->lock, flags); - cs->tty = tty; - spin_unlock_irqrestore(&cs->lock, flags); -@@ -192,10 +190,10 @@ static void if_close(struct tty_struct * - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else { -- if (!--cs->open_count) { -+ if (!local_dec_return(&cs->open_count)) { - spin_lock_irqsave(&cs->lock, flags); - cs->tty = NULL; - spin_unlock_irqrestore(&cs->lock, flags); -@@ -230,7 +228,7 @@ static int if_ioctl(struct tty_struct *t - if (!cs->connected) { - gig_dbg(DEBUG_IF, "not connected"); - retval = -ENODEV; -- } else if (!cs->open_count) -+ } else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else { - retval = 0; -@@ -360,7 +358,7 @@ static int if_write(struct tty_struct *t - retval = -ENODEV; - goto done; - } -- if (!cs->open_count) { -+ if (!local_read(&cs->open_count)) { - dev_warn(cs->dev, "%s: device not opened\n", __func__); - retval = -ENODEV; - goto done; -@@ -413,7 +411,7 @@ static int if_write_room(struct tty_stru - if (!cs->connected) { - gig_dbg(DEBUG_IF, "not connected"); - retval = -ENODEV; -- } else if (!cs->open_count) -+ } else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else if (cs->mstate != MS_LOCKED) { - dev_warn(cs->dev, "can't write to unlocked device\n"); -@@ -443,7 +441,7 @@ static int if_chars_in_buffer(struct tty - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else if (cs->mstate != MS_LOCKED) - dev_warn(cs->dev, "can't write to unlocked device\n"); -@@ -471,7 +469,7 @@ static void if_throttle(struct tty_struc - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else - gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); -@@ -495,7 +493,7 @@ static void if_unthrottle(struct tty_str - - if (!cs->connected) - gig_dbg(DEBUG_IF, "not connected"); /* nothing to do */ -- else if (!cs->open_count) -+ else if (!local_read(&cs->open_count)) - dev_warn(cs->dev, "%s: device not opened\n", __func__); - else - gig_dbg(DEBUG_IF, "%s: not implemented\n", __func__); -@@ -526,7 +524,7 @@ static void if_set_termios(struct tty_st - goto out; - } - -- if (!cs->open_count) { -+ if (!local_read(&cs->open_count)) { - dev_warn(cs->dev, "%s: device not opened\n", __func__); - goto out; - } -diff -urNp linux-3.0.4/drivers/isdn/hardware/avm/b1.c linux-3.0.4/drivers/isdn/hardware/avm/b1.c ---- linux-3.0.4/drivers/isdn/hardware/avm/b1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/avm/b1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -176,7 +176,7 @@ int b1_load_t4file(avmcard *card, capilo - } - if (left) { - if (t4file->user) { -- if (copy_from_user(buf, dp, left)) -+ if (left > sizeof buf || copy_from_user(buf, dp, left)) - return -EFAULT; - } else { - memcpy(buf, dp, left); -@@ -224,7 +224,7 @@ int b1_load_config(avmcard *card, capilo - } - if (left) { - if (config->user) { -- if (copy_from_user(buf, dp, left)) -+ if (left > sizeof buf || copy_from_user(buf, dp, left)) - return -EFAULT; - } else { - memcpy(buf, dp, left); -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/capidtmf.c 2011-08-23 21:48:14.000000000 -0400 -@@ -498,6 +498,7 @@ void capidtmf_recv_block (t_capidtmf_sta - byte goertzel_result_buffer[CAPIDTMF_RECV_TOTAL_FREQUENCY_COUNT]; - short windowed_sample_buffer[CAPIDTMF_RECV_WINDOWED_SAMPLES]; - -+ pax_track_stack(); - - if (p_state->recv.state & CAPIDTMF_RECV_STATE_DTMF_ACTIVE) - { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/capifunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1055,6 +1055,8 @@ static int divacapi_connect_didd(void) - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/diddfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -54,6 +54,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/divasfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -160,6 +160,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h ---- linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/divasync.h 2011-08-23 21:47:55.000000000 -0400 -@@ -146,7 +146,7 @@ typedef struct _diva_didd_add_adapter { - } diva_didd_add_adapter_t; - typedef struct _diva_didd_remove_adapter { - IDI_CALL p_request; --} diva_didd_remove_adapter_t; -+} __no_const diva_didd_remove_adapter_t; - typedef struct _diva_didd_read_adapter_array { - void * buffer; - dword length; -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/idifunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -188,6 +188,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/message.c linux-3.0.4/drivers/isdn/hardware/eicon/message.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/message.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/message.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4886,6 +4886,8 @@ static void sig_ind(PLCI *plci) - dword d; - word w; - -+ pax_track_stack(); -+ - a = plci->adapter; - Id = ((word)plci->Id<<8)|a->Id; - PUT_WORD(&SS_Ind[4],0x0000); -@@ -7480,6 +7482,8 @@ static word add_b1(PLCI *plci, API_PARSE - word j, n, w; - dword d; - -+ pax_track_stack(); -+ - - for(i=0;i<8;i++) bp_parms[i].length = 0; - for(i=0;i<2;i++) global_config[i].length = 0; -@@ -7954,6 +7958,8 @@ static word add_b23(PLCI *plci, API_PARS - const byte llc3[] = {4,3,2,2,6,6,0}; - const byte header[] = {0,2,3,3,0,0,0}; - -+ pax_track_stack(); -+ - for(i=0;i<8;i++) bp_parms[i].length = 0; - for(i=0;i<6;i++) b2_config_parms[i].length = 0; - for(i=0;i<5;i++) b3_config_parms[i].length = 0; -@@ -14741,6 +14747,8 @@ static void group_optimization(DIVA_CAPI - word appl_number_group_type[MAX_APPL]; - PLCI *auxplci; - -+ pax_track_stack(); -+ - set_group_ind_mask (plci); /* all APPLs within this inc. call are allowed to dial in */ - - if(!a->group_optimization_enabled) -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c ---- linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/mntfunc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -79,6 +79,8 @@ static int DIVA_INIT_FUNCTION connect_di - IDI_SYNC_REQ req; - DESCRIPTOR DIDD_Table[MAX_DESCRIPTORS]; - -+ pax_track_stack(); -+ - DIVA_DIDD_Read(DIDD_Table, sizeof(DIDD_Table)); - - for (x = 0; x < MAX_DESCRIPTORS; x++) { -diff -urNp linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h ---- linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/hardware/eicon/xdi_adapter.h 2011-08-23 21:47:55.000000000 -0400 -@@ -44,7 +44,7 @@ typedef struct _xdi_mbox_t { - typedef struct _diva_os_idi_adapter_interface { - diva_init_card_proc_t cleanup_adapter_proc; - diva_cmd_card_proc_t cmd_proc; --} diva_os_idi_adapter_interface_t; -+} __no_const diva_os_idi_adapter_interface_t; - - typedef struct _diva_os_xdi_adapter { - struct list_head link; -diff -urNp linux-3.0.4/drivers/isdn/i4l/isdn_common.c linux-3.0.4/drivers/isdn/i4l/isdn_common.c ---- linux-3.0.4/drivers/isdn/i4l/isdn_common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/i4l/isdn_common.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1286,6 +1286,8 @@ isdn_ioctl(struct file *file, uint cmd, - } iocpar; - void __user *argp = (void __user *)arg; - -+ pax_track_stack(); -+ - #define name iocpar.name - #define bname iocpar.bname - #define iocts iocpar.iocts -diff -urNp linux-3.0.4/drivers/isdn/icn/icn.c linux-3.0.4/drivers/isdn/icn/icn.c ---- linux-3.0.4/drivers/isdn/icn/icn.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/isdn/icn/icn.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1045,7 +1045,7 @@ icn_writecmd(const u_char * buf, int len - if (count > len) - count = len; - if (user) { -- if (copy_from_user(msg, buf, count)) -+ if (count > sizeof msg || copy_from_user(msg, buf, count)) - return -EFAULT; - } else - memcpy(msg, buf, count); -diff -urNp linux-3.0.4/drivers/lguest/core.c linux-3.0.4/drivers/lguest/core.c ---- linux-3.0.4/drivers/lguest/core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -92,9 +92,17 @@ static __init int map_switcher(void) - * it's worked so far. The end address needs +1 because __get_vm_area - * allocates an extra guard page, so we need space for that. - */ -+ -+#if defined(CONFIG_MODULES) && defined(CONFIG_X86_32) && defined(CONFIG_PAX_KERNEXEC) -+ switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, -+ VM_ALLOC | VM_KERNEXEC, SWITCHER_ADDR, SWITCHER_ADDR -+ + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#else - switcher_vma = __get_vm_area(TOTAL_SWITCHER_PAGES * PAGE_SIZE, - VM_ALLOC, SWITCHER_ADDR, SWITCHER_ADDR - + (TOTAL_SWITCHER_PAGES+1) * PAGE_SIZE); -+#endif -+ - if (!switcher_vma) { - err = -ENOMEM; - printk("lguest: could not map switcher pages high\n"); -@@ -119,7 +127,7 @@ static __init int map_switcher(void) - * Now the Switcher is mapped at the right address, we can't fail! - * Copy in the compiled-in Switcher code (from _switcher.S). - */ -- memcpy(switcher_vma->addr, start_switcher_text, -+ memcpy(switcher_vma->addr, ktla_ktva(start_switcher_text), - end_switcher_text - start_switcher_text); - - printk(KERN_INFO "lguest: mapped switcher at %p\n", -diff -urNp linux-3.0.4/drivers/lguest/x86/core.c linux-3.0.4/drivers/lguest/x86/core.c ---- linux-3.0.4/drivers/lguest/x86/core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/x86/core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -59,7 +59,7 @@ static struct { - /* Offset from where switcher.S was compiled to where we've copied it */ - static unsigned long switcher_offset(void) - { -- return SWITCHER_ADDR - (unsigned long)start_switcher_text; -+ return SWITCHER_ADDR - (unsigned long)ktla_ktva(start_switcher_text); - } - - /* This cpu's struct lguest_pages. */ -@@ -100,7 +100,13 @@ static void copy_in_guest_info(struct lg - * These copies are pretty cheap, so we do them unconditionally: */ - /* Save the current Host top-level page directory. - */ -+ -+#ifdef CONFIG_PAX_PER_CPU_PGD -+ pages->state.host_cr3 = read_cr3(); -+#else - pages->state.host_cr3 = __pa(current->mm->pgd); -+#endif -+ - /* - * Set up the Guest's page tables to see this CPU's pages (and no - * other CPU's pages). -@@ -547,7 +553,7 @@ void __init lguest_arch_host_init(void) - * compiled-in switcher code and the high-mapped copy we just made. - */ - for (i = 0; i < IDT_ENTRIES; i++) -- default_idt_entries[i] += switcher_offset(); -+ default_idt_entries[i] = ktla_ktva(default_idt_entries[i]) + switcher_offset(); - - /* - * Set up the Switcher's per-cpu areas. -@@ -630,7 +636,7 @@ void __init lguest_arch_host_init(void) - * it will be undisturbed when we switch. To change %cs and jump we - * need this structure to feed to Intel's "lcall" instruction. - */ -- lguest_entry.offset = (long)switch_to_guest + switcher_offset(); -+ lguest_entry.offset = (long)ktla_ktva(switch_to_guest) + switcher_offset(); - lguest_entry.segment = LGUEST_CS; - - /* -diff -urNp linux-3.0.4/drivers/lguest/x86/switcher_32.S linux-3.0.4/drivers/lguest/x86/switcher_32.S ---- linux-3.0.4/drivers/lguest/x86/switcher_32.S 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/lguest/x86/switcher_32.S 2011-08-23 21:47:55.000000000 -0400 -@@ -87,6 +87,7 @@ - #include - #include - #include -+#include - - // We mark the start of the code to copy - // It's placed in .text tho it's never run here -@@ -149,6 +150,13 @@ ENTRY(switch_to_guest) - // Changes type when we load it: damn Intel! - // For after we switch over our page tables - // That entry will be read-only: we'd crash. -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %edx -+ xor $X86_CR0_WP, %edx -+ mov %edx, %cr0 -+#endif -+ - movl $(GDT_ENTRY_TSS*8), %edx - ltr %dx - -@@ -157,9 +165,15 @@ ENTRY(switch_to_guest) - // Let's clear it again for our return. - // The GDT descriptor of the Host - // Points to the table after two "size" bytes -- movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %edx -+ movl (LGUEST_PAGES_host_gdt_desc+2)(%eax), %eax - // Clear "used" from type field (byte 5, bit 2) -- andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%edx) -+ andb $0xFD, (GDT_ENTRY_TSS*8 + 5)(%eax) -+ -+#ifdef CONFIG_PAX_KERNEXEC -+ mov %cr0, %eax -+ xor $X86_CR0_WP, %eax -+ mov %eax, %cr0 -+#endif - - // Once our page table's switched, the Guest is live! - // The Host fades as we run this final step. -@@ -295,13 +309,12 @@ deliver_to_host: - // I consulted gcc, and it gave - // These instructions, which I gladly credit: - leal (%edx,%ebx,8), %eax -- movzwl (%eax),%edx -- movl 4(%eax), %eax -- xorw %ax, %ax -- orl %eax, %edx -+ movl 4(%eax), %edx -+ movw (%eax), %dx - // Now the address of the handler's in %edx - // We call it now: its "iret" drops us home. -- jmp *%edx -+ ljmp $__KERNEL_CS, $1f -+1: jmp *%edx - - // Every interrupt can come to us here - // But we must truly tell each apart. -diff -urNp linux-3.0.4/drivers/md/dm.c linux-3.0.4/drivers/md/dm.c ---- linux-3.0.4/drivers/md/dm.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -164,9 +164,9 @@ struct mapped_device { - /* - * Event handling. - */ -- atomic_t event_nr; -+ atomic_unchecked_t event_nr; - wait_queue_head_t eventq; -- atomic_t uevent_seq; -+ atomic_unchecked_t uevent_seq; - struct list_head uevent_list; - spinlock_t uevent_lock; /* Protect access to uevent_list */ - -@@ -1842,8 +1842,8 @@ static struct mapped_device *alloc_dev(i - rwlock_init(&md->map_lock); - atomic_set(&md->holders, 1); - atomic_set(&md->open_count, 0); -- atomic_set(&md->event_nr, 0); -- atomic_set(&md->uevent_seq, 0); -+ atomic_set_unchecked(&md->event_nr, 0); -+ atomic_set_unchecked(&md->uevent_seq, 0); - INIT_LIST_HEAD(&md->uevent_list); - spin_lock_init(&md->uevent_lock); - -@@ -1977,7 +1977,7 @@ static void event_callback(void *context - - dm_send_uevents(&uevents, &disk_to_dev(md->disk)->kobj); - -- atomic_inc(&md->event_nr); -+ atomic_inc_unchecked(&md->event_nr); - wake_up(&md->eventq); - } - -@@ -2553,18 +2553,18 @@ int dm_kobject_uevent(struct mapped_devi - - uint32_t dm_next_uevent_seq(struct mapped_device *md) - { -- return atomic_add_return(1, &md->uevent_seq); -+ return atomic_add_return_unchecked(1, &md->uevent_seq); - } - - uint32_t dm_get_event_nr(struct mapped_device *md) - { -- return atomic_read(&md->event_nr); -+ return atomic_read_unchecked(&md->event_nr); - } - - int dm_wait_event(struct mapped_device *md, int event_nr) - { - return wait_event_interruptible(md->eventq, -- (event_nr != atomic_read(&md->event_nr))); -+ (event_nr != atomic_read_unchecked(&md->event_nr))); - } - - void dm_uevent_add(struct mapped_device *md, struct list_head *elist) -diff -urNp linux-3.0.4/drivers/md/dm-ioctl.c linux-3.0.4/drivers/md/dm-ioctl.c ---- linux-3.0.4/drivers/md/dm-ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-ioctl.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1551,7 +1551,7 @@ static int validate_params(uint cmd, str - cmd == DM_LIST_VERSIONS_CMD) - return 0; - -- if ((cmd == DM_DEV_CREATE_CMD)) { -+ if (cmd == DM_DEV_CREATE_CMD) { - if (!*param->name) { - DMWARN("name not supplied when creating device"); - return -EINVAL; -diff -urNp linux-3.0.4/drivers/md/dm-raid1.c linux-3.0.4/drivers/md/dm-raid1.c ---- linux-3.0.4/drivers/md/dm-raid1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-raid1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -40,7 +40,7 @@ enum dm_raid1_error { - - struct mirror { - struct mirror_set *ms; -- atomic_t error_count; -+ atomic_unchecked_t error_count; - unsigned long error_type; - struct dm_dev *dev; - sector_t offset; -@@ -185,7 +185,7 @@ static struct mirror *get_valid_mirror(s - struct mirror *m; - - for (m = ms->mirror; m < ms->mirror + ms->nr_mirrors; m++) -- if (!atomic_read(&m->error_count)) -+ if (!atomic_read_unchecked(&m->error_count)) - return m; - - return NULL; -@@ -217,7 +217,7 @@ static void fail_mirror(struct mirror *m - * simple way to tell if a device has encountered - * errors. - */ -- atomic_inc(&m->error_count); -+ atomic_inc_unchecked(&m->error_count); - - if (test_and_set_bit(error_type, &m->error_type)) - return; -@@ -408,7 +408,7 @@ static struct mirror *choose_mirror(stru - struct mirror *m = get_default_mirror(ms); - - do { -- if (likely(!atomic_read(&m->error_count))) -+ if (likely(!atomic_read_unchecked(&m->error_count))) - return m; - - if (m-- == ms->mirror) -@@ -422,7 +422,7 @@ static int default_ok(struct mirror *m) - { - struct mirror *default_mirror = get_default_mirror(m->ms); - -- return !atomic_read(&default_mirror->error_count); -+ return !atomic_read_unchecked(&default_mirror->error_count); - } - - static int mirror_available(struct mirror_set *ms, struct bio *bio) -@@ -559,7 +559,7 @@ static void do_reads(struct mirror_set * - */ - if (likely(region_in_sync(ms, region, 1))) - m = choose_mirror(ms, bio->bi_sector); -- else if (m && atomic_read(&m->error_count)) -+ else if (m && atomic_read_unchecked(&m->error_count)) - m = NULL; - - if (likely(m)) -@@ -937,7 +937,7 @@ static int get_mirror(struct mirror_set - } - - ms->mirror[mirror].ms = ms; -- atomic_set(&(ms->mirror[mirror].error_count), 0); -+ atomic_set_unchecked(&(ms->mirror[mirror].error_count), 0); - ms->mirror[mirror].error_type = 0; - ms->mirror[mirror].offset = offset; - -@@ -1347,7 +1347,7 @@ static void mirror_resume(struct dm_targ - */ - static char device_status_char(struct mirror *m) - { -- if (!atomic_read(&(m->error_count))) -+ if (!atomic_read_unchecked(&(m->error_count))) - return 'A'; - - return (test_bit(DM_RAID1_FLUSH_ERROR, &(m->error_type))) ? 'F' : -diff -urNp linux-3.0.4/drivers/md/dm-stripe.c linux-3.0.4/drivers/md/dm-stripe.c ---- linux-3.0.4/drivers/md/dm-stripe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-stripe.c 2011-08-23 21:47:55.000000000 -0400 -@@ -20,7 +20,7 @@ struct stripe { - struct dm_dev *dev; - sector_t physical_start; - -- atomic_t error_count; -+ atomic_unchecked_t error_count; - }; - - struct stripe_c { -@@ -192,7 +192,7 @@ static int stripe_ctr(struct dm_target * - kfree(sc); - return r; - } -- atomic_set(&(sc->stripe[i].error_count), 0); -+ atomic_set_unchecked(&(sc->stripe[i].error_count), 0); - } - - ti->private = sc; -@@ -314,7 +314,7 @@ static int stripe_status(struct dm_targe - DMEMIT("%d ", sc->stripes); - for (i = 0; i < sc->stripes; i++) { - DMEMIT("%s ", sc->stripe[i].dev->name); -- buffer[i] = atomic_read(&(sc->stripe[i].error_count)) ? -+ buffer[i] = atomic_read_unchecked(&(sc->stripe[i].error_count)) ? - 'D' : 'A'; - } - buffer[i] = '\0'; -@@ -361,8 +361,8 @@ static int stripe_end_io(struct dm_targe - */ - for (i = 0; i < sc->stripes; i++) - if (!strcmp(sc->stripe[i].dev->name, major_minor)) { -- atomic_inc(&(sc->stripe[i].error_count)); -- if (atomic_read(&(sc->stripe[i].error_count)) < -+ atomic_inc_unchecked(&(sc->stripe[i].error_count)); -+ if (atomic_read_unchecked(&(sc->stripe[i].error_count)) < - DM_IO_ERROR_THRESHOLD) - schedule_work(&sc->trigger_event); - } -diff -urNp linux-3.0.4/drivers/md/dm-table.c linux-3.0.4/drivers/md/dm-table.c ---- linux-3.0.4/drivers/md/dm-table.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/dm-table.c 2011-08-23 21:47:55.000000000 -0400 -@@ -390,7 +390,7 @@ static int device_area_is_invalid(struct - if (!dev_size) - return 0; - -- if ((start >= dev_size) || (start + len > dev_size)) { -+ if ((start >= dev_size) || (len > dev_size - start)) { - DMWARN("%s: %s too small for target: " - "start=%llu, len=%llu, dev_size=%llu", - dm_device_name(ti->table->md), bdevname(bdev, b), -diff -urNp linux-3.0.4/drivers/md/md.c linux-3.0.4/drivers/md/md.c ---- linux-3.0.4/drivers/md/md.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/md.c 2011-08-23 21:47:55.000000000 -0400 -@@ -226,10 +226,10 @@ EXPORT_SYMBOL_GPL(bio_clone_mddev); - * start build, activate spare - */ - static DECLARE_WAIT_QUEUE_HEAD(md_event_waiters); --static atomic_t md_event_count; -+static atomic_unchecked_t md_event_count; - void md_new_event(mddev_t *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - EXPORT_SYMBOL_GPL(md_new_event); -@@ -239,7 +239,7 @@ EXPORT_SYMBOL_GPL(md_new_event); - */ - static void md_new_event_inintr(mddev_t *mddev) - { -- atomic_inc(&md_event_count); -+ atomic_inc_unchecked(&md_event_count); - wake_up(&md_event_waiters); - } - -@@ -1457,7 +1457,7 @@ static int super_1_load(mdk_rdev_t *rdev - - rdev->preferred_minor = 0xffff; - rdev->data_offset = le64_to_cpu(sb->data_offset); -- atomic_set(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); -+ atomic_set_unchecked(&rdev->corrected_errors, le32_to_cpu(sb->cnt_corrected_read)); - - rdev->sb_size = le32_to_cpu(sb->max_dev) * 2 + 256; - bmask = queue_logical_block_size(rdev->bdev->bd_disk->queue)-1; -@@ -1635,7 +1635,7 @@ static void super_1_sync(mddev_t *mddev, - else - sb->resync_offset = cpu_to_le64(0); - -- sb->cnt_corrected_read = cpu_to_le32(atomic_read(&rdev->corrected_errors)); -+ sb->cnt_corrected_read = cpu_to_le32(atomic_read_unchecked(&rdev->corrected_errors)); - - sb->raid_disks = cpu_to_le32(mddev->raid_disks); - sb->size = cpu_to_le64(mddev->dev_sectors); -@@ -2428,7 +2428,7 @@ __ATTR(state, S_IRUGO|S_IWUSR, state_sho - static ssize_t - errors_show(mdk_rdev_t *rdev, char *page) - { -- return sprintf(page, "%d\n", atomic_read(&rdev->corrected_errors)); -+ return sprintf(page, "%d\n", atomic_read_unchecked(&rdev->corrected_errors)); - } - - static ssize_t -@@ -2437,7 +2437,7 @@ errors_store(mdk_rdev_t *rdev, const cha - char *e; - unsigned long n = simple_strtoul(buf, &e, 10); - if (*buf && (*e == 0 || *e == '\n')) { -- atomic_set(&rdev->corrected_errors, n); -+ atomic_set_unchecked(&rdev->corrected_errors, n); - return len; - } - return -EINVAL; -@@ -2793,8 +2793,8 @@ void md_rdev_init(mdk_rdev_t *rdev) - rdev->last_read_error.tv_sec = 0; - rdev->last_read_error.tv_nsec = 0; - atomic_set(&rdev->nr_pending, 0); -- atomic_set(&rdev->read_errors, 0); -- atomic_set(&rdev->corrected_errors, 0); -+ atomic_set_unchecked(&rdev->read_errors, 0); -+ atomic_set_unchecked(&rdev->corrected_errors, 0); - - INIT_LIST_HEAD(&rdev->same_set); - init_waitqueue_head(&rdev->blocked_wait); -@@ -6415,7 +6415,7 @@ static int md_seq_show(struct seq_file * - - spin_unlock(&pers_lock); - seq_printf(seq, "\n"); -- mi->event = atomic_read(&md_event_count); -+ mi->event = atomic_read_unchecked(&md_event_count); - return 0; - } - if (v == (void*)2) { -@@ -6504,7 +6504,7 @@ static int md_seq_show(struct seq_file * - chunk_kb ? "KB" : "B"); - if (bitmap->file) { - seq_printf(seq, ", file: "); -- seq_path(seq, &bitmap->file->f_path, " \t\n"); -+ seq_path(seq, &bitmap->file->f_path, " \t\n\\"); - } - - seq_printf(seq, "\n"); -@@ -6538,7 +6538,7 @@ static int md_seq_open(struct inode *ino - else { - struct seq_file *p = file->private_data; - p->private = mi; -- mi->event = atomic_read(&md_event_count); -+ mi->event = atomic_read_unchecked(&md_event_count); - } - return error; - } -@@ -6554,7 +6554,7 @@ static unsigned int mdstat_poll(struct f - /* always allow read */ - mask = POLLIN | POLLRDNORM; - -- if (mi->event != atomic_read(&md_event_count)) -+ if (mi->event != atomic_read_unchecked(&md_event_count)) - mask |= POLLERR | POLLPRI; - return mask; - } -@@ -6598,7 +6598,7 @@ static int is_mddev_idle(mddev_t *mddev, - struct gendisk *disk = rdev->bdev->bd_contains->bd_disk; - curr_events = (int)part_stat_read(&disk->part0, sectors[0]) + - (int)part_stat_read(&disk->part0, sectors[1]) - -- atomic_read(&disk->sync_io); -+ atomic_read_unchecked(&disk->sync_io); - /* sync IO will cause sync_io to increase before the disk_stats - * as sync_io is counted when a request starts, and - * disk_stats is counted when it completes. -diff -urNp linux-3.0.4/drivers/md/md.h linux-3.0.4/drivers/md/md.h ---- linux-3.0.4/drivers/md/md.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/md.h 2011-08-23 21:47:55.000000000 -0400 -@@ -97,13 +97,13 @@ struct mdk_rdev_s - * only maintained for arrays that - * support hot removal - */ -- atomic_t read_errors; /* number of consecutive read errors that -+ atomic_unchecked_t read_errors; /* number of consecutive read errors that - * we have tried to ignore. - */ - struct timespec last_read_error; /* monotonic time since our - * last read error - */ -- atomic_t corrected_errors; /* number of corrected read errors, -+ atomic_unchecked_t corrected_errors; /* number of corrected read errors, - * for reporting to userspace and storing - * in superblock. - */ -@@ -344,7 +344,7 @@ static inline void rdev_dec_pending(mdk_ - - static inline void md_sync_acct(struct block_device *bdev, unsigned long nr_sectors) - { -- atomic_add(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); -+ atomic_add_unchecked(nr_sectors, &bdev->bd_contains->bd_disk->sync_io); - } - - struct mdk_personality -diff -urNp linux-3.0.4/drivers/md/raid10.c linux-3.0.4/drivers/md/raid10.c ---- linux-3.0.4/drivers/md/raid10.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid10.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1186,7 +1186,7 @@ static void end_sync_read(struct bio *bi - if (test_bit(BIO_UPTODATE, &bio->bi_flags)) - set_bit(R10BIO_Uptodate, &r10_bio->state); - else { -- atomic_add(r10_bio->sectors, -+ atomic_add_unchecked(r10_bio->sectors, - &conf->mirrors[d].rdev->corrected_errors); - if (!test_bit(MD_RECOVERY_SYNC, &conf->mddev->recovery)) - md_error(r10_bio->mddev, -@@ -1394,7 +1394,7 @@ static void check_decay_read_errors(mdde - { - struct timespec cur_time_mon; - unsigned long hours_since_last; -- unsigned int read_errors = atomic_read(&rdev->read_errors); -+ unsigned int read_errors = atomic_read_unchecked(&rdev->read_errors); - - ktime_get_ts(&cur_time_mon); - -@@ -1416,9 +1416,9 @@ static void check_decay_read_errors(mdde - * overflowing the shift of read_errors by hours_since_last. - */ - if (hours_since_last >= 8 * sizeof(read_errors)) -- atomic_set(&rdev->read_errors, 0); -+ atomic_set_unchecked(&rdev->read_errors, 0); - else -- atomic_set(&rdev->read_errors, read_errors >> hours_since_last); -+ atomic_set_unchecked(&rdev->read_errors, read_errors >> hours_since_last); - } - - /* -@@ -1448,8 +1448,8 @@ static void fix_read_error(conf_t *conf, - return; - - check_decay_read_errors(mddev, rdev); -- atomic_inc(&rdev->read_errors); -- if (atomic_read(&rdev->read_errors) > max_read_errors) { -+ atomic_inc_unchecked(&rdev->read_errors); -+ if (atomic_read_unchecked(&rdev->read_errors) > max_read_errors) { - char b[BDEVNAME_SIZE]; - bdevname(rdev->bdev, b); - -@@ -1457,7 +1457,7 @@ static void fix_read_error(conf_t *conf, - "md/raid10:%s: %s: Raid device exceeded " - "read_error threshold [cur %d:max %d]\n", - mdname(mddev), b, -- atomic_read(&rdev->read_errors), max_read_errors); -+ atomic_read_unchecked(&rdev->read_errors), max_read_errors); - printk(KERN_NOTICE - "md/raid10:%s: %s: Failing raid device\n", - mdname(mddev), b); -@@ -1520,7 +1520,7 @@ static void fix_read_error(conf_t *conf, - test_bit(In_sync, &rdev->flags)) { - atomic_inc(&rdev->nr_pending); - rcu_read_unlock(); -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - if (sync_page_io(rdev, - r10_bio->devs[sl].addr + - sect, -diff -urNp linux-3.0.4/drivers/md/raid1.c linux-3.0.4/drivers/md/raid1.c ---- linux-3.0.4/drivers/md/raid1.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid1.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1263,7 +1263,7 @@ static int fix_sync_read_error(r1bio_t * - rdev_dec_pending(rdev, mddev); - md_error(mddev, rdev); - } else -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - } - d = start; - while (d != r1_bio->read_disk) { -@@ -1492,7 +1492,7 @@ static void fix_read_error(conf_t *conf, - /* Well, this device is dead */ - md_error(mddev, rdev); - else { -- atomic_add(s, &rdev->corrected_errors); -+ atomic_add_unchecked(s, &rdev->corrected_errors); - printk(KERN_INFO - "md/raid1:%s: read error corrected " - "(%d sectors at %llu on %s)\n", -diff -urNp linux-3.0.4/drivers/md/raid5.c linux-3.0.4/drivers/md/raid5.c ---- linux-3.0.4/drivers/md/raid5.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/md/raid5.c 2011-08-23 21:48:14.000000000 -0400 -@@ -550,7 +550,7 @@ static void ops_run_io(struct stripe_hea - bi->bi_next = NULL; - if ((rw & WRITE) && - test_bit(R5_ReWrite, &sh->dev[i].flags)) -- atomic_add(STRIPE_SECTORS, -+ atomic_add_unchecked(STRIPE_SECTORS, - &rdev->corrected_errors); - generic_make_request(bi); - } else { -@@ -1596,15 +1596,15 @@ static void raid5_end_read_request(struc - clear_bit(R5_ReadError, &sh->dev[i].flags); - clear_bit(R5_ReWrite, &sh->dev[i].flags); - } -- if (atomic_read(&conf->disks[i].rdev->read_errors)) -- atomic_set(&conf->disks[i].rdev->read_errors, 0); -+ if (atomic_read_unchecked(&conf->disks[i].rdev->read_errors)) -+ atomic_set_unchecked(&conf->disks[i].rdev->read_errors, 0); - } else { - const char *bdn = bdevname(conf->disks[i].rdev->bdev, b); - int retry = 0; - rdev = conf->disks[i].rdev; - - clear_bit(R5_UPTODATE, &sh->dev[i].flags); -- atomic_inc(&rdev->read_errors); -+ atomic_inc_unchecked(&rdev->read_errors); - if (conf->mddev->degraded >= conf->max_degraded) - printk_rl(KERN_WARNING - "md/raid:%s: read error not correctable " -@@ -1622,7 +1622,7 @@ static void raid5_end_read_request(struc - (unsigned long long)(sh->sector - + rdev->data_offset), - bdn); -- else if (atomic_read(&rdev->read_errors) -+ else if (atomic_read_unchecked(&rdev->read_errors) - > conf->max_nr_stripes) - printk(KERN_WARNING - "md/raid:%s: Too many read errors, failing device %s.\n", -@@ -1945,6 +1945,7 @@ static sector_t compute_blocknr(struct s - sector_t r_sector; - struct stripe_head sh2; - -+ pax_track_stack(); - - chunk_offset = sector_div(new_sector, sectors_per_chunk); - stripe = new_sector; -diff -urNp linux-3.0.4/drivers/media/common/saa7146_hlp.c linux-3.0.4/drivers/media/common/saa7146_hlp.c ---- linux-3.0.4/drivers/media/common/saa7146_hlp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/common/saa7146_hlp.c 2011-08-23 21:48:14.000000000 -0400 -@@ -353,6 +353,8 @@ static void calculate_clipping_registers - - int x[32], y[32], w[32], h[32]; - -+ pax_track_stack(); -+ - /* clear out memory */ - memset(&line_list[0], 0x00, sizeof(u32)*32); - memset(&pixel_list[0], 0x00, sizeof(u32)*32); -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvb_ca_en50221.c 2011-08-23 21:48:14.000000000 -0400 -@@ -590,6 +590,8 @@ static int dvb_ca_en50221_read_data(stru - u8 buf[HOST_LINK_BUF_SIZE]; - int i; - -+ pax_track_stack(); -+ - dprintk("%s\n", __func__); - - /* check if we have space for a link buf in the rx_buffer */ -@@ -1285,6 +1287,8 @@ static ssize_t dvb_ca_en50221_io_write(s - unsigned long timeout; - int written; - -+ pax_track_stack(); -+ - dprintk("%s\n", __func__); - - /* Incoming packet has a 2 byte header. hdr[0] = slot_id, hdr[1] = connection_id */ -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvb_demux.h 2011-08-24 18:24:40.000000000 -0400 -@@ -68,12 +68,12 @@ struct dvb_demux_feed { - union { - struct dmx_ts_feed ts; - struct dmx_section_feed sec; -- } feed; -+ } __no_const feed; - - union { - dmx_ts_cb ts; - dmx_section_cb sec; -- } cb; -+ } __no_const cb; - - struct dvb_demux *demux; - void *priv; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c ---- linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-core/dvbdev.c 2011-08-24 18:24:19.000000000 -0400 -@@ -192,7 +192,7 @@ int dvb_register_device(struct dvb_adapt - const struct dvb_device *template, void *priv, int type) - { - struct dvb_device *dvbdev; -- struct file_operations *dvbdevfops; -+ file_operations_no_const *dvbdevfops; - struct device *clsdev; - int minor; - int id; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/cxusb.c 2011-08-24 18:26:33.000000000 -0400 -@@ -1059,7 +1059,7 @@ static struct dib0070_config dib7070p_di - struct dib0700_adapter_state { - int (*set_param_save) (struct dvb_frontend *, - struct dvb_frontend_parameters *); --}; -+} __no_const; - - static int dib7070_set_param_override(struct dvb_frontend *fe, - struct dvb_frontend_parameters *fep) -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dib0700_core.c 2011-08-23 21:48:14.000000000 -0400 -@@ -434,6 +434,8 @@ int dib0700_download_firmware(struct usb - if (!buf) - return -ENOMEM; - -+ pax_track_stack(); -+ - while ((ret = dvb_usb_get_hexline(fw, &hx, &pos)) > 0) { - deb_fwdata("writing to address 0x%08x (buffer: 0x%02x %02x)\n", - hx.addr, hx.len, hx.chk); -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dibusb.h 2011-08-24 18:27:27.000000000 -0400 -@@ -97,7 +97,7 @@ - #define DIBUSB_IOCTL_CMD_DISABLE_STREAM 0x02 - - struct dibusb_state { -- struct dib_fe_xfer_ops ops; -+ dib_fe_xfer_ops_no_const ops; - int mt2060_present; - u8 tuner_addr; - }; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/dw2102.c 2011-08-24 18:27:45.000000000 -0400 -@@ -95,7 +95,7 @@ struct su3000_state { - - struct s6x0_state { - int (*old_set_voltage)(struct dvb_frontend *f, fe_sec_voltage_t v); --}; -+} __no_const; - - /* debug */ - static int dvb_usb_dw2102_debug; -diff -urNp linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c ---- linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/dvb-usb/lmedm04.c 2011-08-23 21:48:14.000000000 -0400 -@@ -742,6 +742,7 @@ static int lme2510_download_firmware(str - usb_control_msg(dev, usb_rcvctrlpipe(dev, 0), - 0x06, 0x80, 0x0200, 0x00, data, 0x0109, 1000); - -+ pax_track_stack(); - - data[0] = 0x8a; - len_in = 1; -@@ -764,6 +765,8 @@ static void lme_coldreset(struct usb_dev - int ret = 0, len_in; - u8 data[512] = {0}; - -+ pax_track_stack(); -+ - data[0] = 0x0a; - len_in = 1; - info("FRM Firmware Cold Reset"); -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/dib3000.h linux-3.0.4/drivers/media/dvb/frontends/dib3000.h ---- linux-3.0.4/drivers/media/dvb/frontends/dib3000.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/dib3000.h 2011-08-24 18:28:18.000000000 -0400 -@@ -40,10 +40,11 @@ struct dib_fe_xfer_ops - int (*pid_ctrl)(struct dvb_frontend *fe, int index, int pid, int onoff); - int (*tuner_pass_ctrl)(struct dvb_frontend *fe, int onoff, u8 pll_ctrl); - }; -+typedef struct dib_fe_xfer_ops __no_const dib_fe_xfer_ops_no_const; - - #if defined(CONFIG_DVB_DIB3000MB) || (defined(CONFIG_DVB_DIB3000MB_MODULE) && defined(MODULE)) - extern struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, -- struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops); -+ struct i2c_adapter* i2c, dib_fe_xfer_ops_no_const *xfer_ops); - #else - static inline struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, - struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops) -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c ---- linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/dib3000mb.c 2011-08-24 18:28:42.000000000 -0400 -@@ -756,7 +756,7 @@ static int dib3000mb_tuner_pass_ctrl(str - static struct dvb_frontend_ops dib3000mb_ops; - - struct dvb_frontend* dib3000mb_attach(const struct dib3000_config* config, -- struct i2c_adapter* i2c, struct dib_fe_xfer_ops *xfer_ops) -+ struct i2c_adapter* i2c, dib_fe_xfer_ops_no_const *xfer_ops) - { - struct dib3000_state* state = NULL; - -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c ---- linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/mb86a16.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1060,6 +1060,8 @@ static int mb86a16_set_fe(struct mb86a16 - int ret = -1; - int sync; - -+ pax_track_stack(); -+ - dprintk(verbose, MB86A16_INFO, 1, "freq=%d Mhz, symbrt=%d Ksps", state->frequency, state->srate); - - fcp = 3000; -diff -urNp linux-3.0.4/drivers/media/dvb/frontends/or51211.c linux-3.0.4/drivers/media/dvb/frontends/or51211.c ---- linux-3.0.4/drivers/media/dvb/frontends/or51211.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/dvb/frontends/or51211.c 2011-08-23 21:48:14.000000000 -0400 -@@ -113,6 +113,8 @@ static int or51211_load_firmware (struct - u8 tudata[585]; - int i; - -+ pax_track_stack(); -+ - dprintk("Firmware is %zd bytes\n",fw->size); - - /* Get eprom data */ -diff -urNp linux-3.0.4/drivers/media/video/cx18/cx18-driver.c linux-3.0.4/drivers/media/video/cx18/cx18-driver.c ---- linux-3.0.4/drivers/media/video/cx18/cx18-driver.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/cx18/cx18-driver.c 2011-08-23 21:48:14.000000000 -0400 -@@ -327,6 +327,8 @@ void cx18_read_eeprom(struct cx18 *cx, s - struct i2c_client c; - u8 eedata[256]; - -+ pax_track_stack(); -+ - memset(&c, 0, sizeof(c)); - strlcpy(c.name, "cx18 tveeprom tmp", sizeof(c.name)); - c.adapter = &cx->i2c_adap[0]; -diff -urNp linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c ---- linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/cx23885/cx23885-input.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,8 @@ static void cx23885_input_process_measur - bool handle = false; - struct ir_raw_event ir_core_event[64]; - -+ pax_track_stack(); -+ - do { - num = 0; - v4l2_subdev_call(dev->sd_ir, ir, rx_read, (u8 *) ir_core_event, -diff -urNp linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c ---- linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/pvrusb2/pvrusb2-eeprom.c 2011-08-23 21:48:14.000000000 -0400 -@@ -120,6 +120,8 @@ int pvr2_eeprom_analyze(struct pvr2_hdw - u8 *eeprom; - struct tveeprom tvdata; - -+ pax_track_stack(); -+ - memset(&tvdata,0,sizeof(tvdata)); - - eeprom = pvr2_eeprom_fetch(hdw); -diff -urNp linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c ---- linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/saa7134/saa6752hs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -682,6 +682,8 @@ static int saa6752hs_init(struct v4l2_su - unsigned char localPAT[256]; - unsigned char localPMT[256]; - -+ pax_track_stack(); -+ - /* Set video format - must be done first as it resets other settings */ - set_reg8(client, 0x41, h->video_format); - -diff -urNp linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c ---- linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/saa7164/saa7164-cmd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -88,6 +88,8 @@ int saa7164_irq_dequeue(struct saa7164_d - u8 tmp[512]; - dprintk(DBGLVL_CMD, "%s()\n", __func__); - -+ pax_track_stack(); -+ - /* While any outstand message on the bus exists... */ - do { - -@@ -141,6 +143,8 @@ int saa7164_cmd_dequeue(struct saa7164_d - u8 tmp[512]; - dprintk(DBGLVL_CMD, "%s()\n", __func__); - -+ pax_track_stack(); -+ - while (loop) { - - struct tmComResInfo tRsp = { 0, 0, 0, 0, 0, 0 }; -diff -urNp linux-3.0.4/drivers/media/video/timblogiw.c linux-3.0.4/drivers/media/video/timblogiw.c ---- linux-3.0.4/drivers/media/video/timblogiw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/timblogiw.c 2011-08-24 18:29:20.000000000 -0400 -@@ -745,7 +745,7 @@ static int timblogiw_mmap(struct file *f - - /* Platform device functions */ - --static __devinitconst struct v4l2_ioctl_ops timblogiw_ioctl_ops = { -+static __devinitconst v4l2_ioctl_ops_no_const timblogiw_ioctl_ops = { - .vidioc_querycap = timblogiw_querycap, - .vidioc_enum_fmt_vid_cap = timblogiw_enum_fmt, - .vidioc_g_fmt_vid_cap = timblogiw_g_fmt, -diff -urNp linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c ---- linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/usbvision/usbvision-core.c 2011-08-23 21:48:14.000000000 -0400 -@@ -707,6 +707,8 @@ static enum parse_state usbvision_parse_ - unsigned char rv, gv, bv; - static unsigned char *Y, *U, *V; - -+ pax_track_stack(); -+ - frame = usbvision->cur_frame; - image_size = frame->frmwidth * frame->frmheight; - if ((frame->v4l2_format.format == V4L2_PIX_FMT_YUV422P) || -diff -urNp linux-3.0.4/drivers/media/video/videobuf-dma-sg.c linux-3.0.4/drivers/media/video/videobuf-dma-sg.c ---- linux-3.0.4/drivers/media/video/videobuf-dma-sg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/media/video/videobuf-dma-sg.c 2011-08-23 21:48:14.000000000 -0400 -@@ -606,6 +606,8 @@ void *videobuf_sg_alloc(size_t size) - { - struct videobuf_queue q; - -+ pax_track_stack(); -+ - /* Required to make generic handler to call __videobuf_alloc */ - q.int_ops = &sg_ops; - -diff -urNp linux-3.0.4/drivers/message/fusion/mptbase.c linux-3.0.4/drivers/message/fusion/mptbase.c ---- linux-3.0.4/drivers/message/fusion/mptbase.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptbase.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6681,8 +6681,13 @@ static int mpt_iocinfo_proc_show(struct - seq_printf(m, " MaxChainDepth = 0x%02x frames\n", ioc->facts.MaxChainDepth); - seq_printf(m, " MinBlockSize = 0x%02x bytes\n", 4*ioc->facts.BlockSize); - -+#ifdef CONFIG_GRKERNSEC_HIDESYM -+ seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", NULL, NULL); -+#else - seq_printf(m, " RequestFrames @ 0x%p (Dma @ 0x%p)\n", - (void *)ioc->req_frames, (void *)(ulong)ioc->req_frames_dma); -+#endif -+ - /* - * Rounding UP to nearest 4-kB boundary here... - */ -diff -urNp linux-3.0.4/drivers/message/fusion/mptsas.c linux-3.0.4/drivers/message/fusion/mptsas.c ---- linux-3.0.4/drivers/message/fusion/mptsas.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptsas.c 2011-08-23 21:47:55.000000000 -0400 -@@ -439,6 +439,23 @@ mptsas_is_end_device(struct mptsas_devin - return 0; - } - -+static inline void -+mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) -+{ -+ if (phy_info->port_details) { -+ phy_info->port_details->rphy = rphy; -+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", -+ ioc->name, rphy)); -+ } -+ -+ if (rphy) { -+ dsaswideprintk(ioc, dev_printk(KERN_DEBUG, -+ &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); -+ dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", -+ ioc->name, rphy, rphy->dev.release)); -+ } -+} -+ - /* no mutex */ - static void - mptsas_port_delete(MPT_ADAPTER *ioc, struct mptsas_portinfo_details * port_details) -@@ -477,23 +494,6 @@ mptsas_get_rphy(struct mptsas_phyinfo *p - return NULL; - } - --static inline void --mptsas_set_rphy(MPT_ADAPTER *ioc, struct mptsas_phyinfo *phy_info, struct sas_rphy *rphy) --{ -- if (phy_info->port_details) { -- phy_info->port_details->rphy = rphy; -- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "sas_rphy_add: rphy=%p\n", -- ioc->name, rphy)); -- } -- -- if (rphy) { -- dsaswideprintk(ioc, dev_printk(KERN_DEBUG, -- &rphy->dev, MYIOC_s_FMT "add:", ioc->name)); -- dsaswideprintk(ioc, printk(MYIOC_s_DEBUG_FMT "rphy=%p release=%p\n", -- ioc->name, rphy, rphy->dev.release)); -- } --} -- - static inline struct sas_port * - mptsas_get_port(struct mptsas_phyinfo *phy_info) - { -diff -urNp linux-3.0.4/drivers/message/fusion/mptscsih.c linux-3.0.4/drivers/message/fusion/mptscsih.c ---- linux-3.0.4/drivers/message/fusion/mptscsih.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/fusion/mptscsih.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1268,15 +1268,16 @@ mptscsih_info(struct Scsi_Host *SChost) - - h = shost_priv(SChost); - -- if (h) { -- if (h->info_kbuf == NULL) -- if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) -- return h->info_kbuf; -- h->info_kbuf[0] = '\0'; -+ if (!h) -+ return NULL; - -- mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); -- h->info_kbuf[size-1] = '\0'; -- } -+ if (h->info_kbuf == NULL) -+ if ((h->info_kbuf = kmalloc(0x1000 /* 4Kb */, GFP_KERNEL)) == NULL) -+ return h->info_kbuf; -+ h->info_kbuf[0] = '\0'; -+ -+ mpt_print_ioc_summary(h->ioc, h->info_kbuf, &size, 0, 0); -+ h->info_kbuf[size-1] = '\0'; - - return h->info_kbuf; - } -diff -urNp linux-3.0.4/drivers/message/i2o/i2o_config.c linux-3.0.4/drivers/message/i2o/i2o_config.c ---- linux-3.0.4/drivers/message/i2o/i2o_config.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/i2o_config.c 2011-08-23 21:48:14.000000000 -0400 -@@ -781,6 +781,8 @@ static int i2o_cfg_passthru(unsigned lon - struct i2o_message *msg; - unsigned int iop; - -+ pax_track_stack(); -+ - if (get_user(iop, &cmd->iop) || get_user(user_msg, &cmd->msg)) - return -EFAULT; - -diff -urNp linux-3.0.4/drivers/message/i2o/i2o_proc.c linux-3.0.4/drivers/message/i2o/i2o_proc.c ---- linux-3.0.4/drivers/message/i2o/i2o_proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/i2o_proc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -255,13 +255,6 @@ static char *scsi_devices[] = { - "Array Controller Device" - }; - --static char *chtostr(u8 * chars, int n) --{ -- char tmp[256]; -- tmp[0] = 0; -- return strncat(tmp, (char *)chars, n); --} -- - static int i2o_report_query_status(struct seq_file *seq, int block_status, - char *group) - { -@@ -838,8 +831,7 @@ static int i2o_seq_show_ddm_table(struct - - seq_printf(seq, "%-#7x", ddm_table.i2o_vendor_id); - seq_printf(seq, "%-#8x", ddm_table.module_id); -- seq_printf(seq, "%-29s", -- chtostr(ddm_table.module_name_version, 28)); -+ seq_printf(seq, "%-.28s", ddm_table.module_name_version); - seq_printf(seq, "%9d ", ddm_table.data_size); - seq_printf(seq, "%8d", ddm_table.code_size); - -@@ -940,8 +932,8 @@ static int i2o_seq_show_drivers_stored(s - - seq_printf(seq, "%-#7x", dst->i2o_vendor_id); - seq_printf(seq, "%-#8x", dst->module_id); -- seq_printf(seq, "%-29s", chtostr(dst->module_name_version, 28)); -- seq_printf(seq, "%-9s", chtostr(dst->date, 8)); -+ seq_printf(seq, "%-.28s", dst->module_name_version); -+ seq_printf(seq, "%-.8s", dst->date); - seq_printf(seq, "%8d ", dst->module_size); - seq_printf(seq, "%8d ", dst->mpb_size); - seq_printf(seq, "0x%04x", dst->module_flags); -@@ -1272,14 +1264,10 @@ static int i2o_seq_show_dev_identity(str - seq_printf(seq, "Device Class : %s\n", i2o_get_class_name(work16[0])); - seq_printf(seq, "Owner TID : %0#5x\n", work16[2]); - seq_printf(seq, "Parent TID : %0#5x\n", work16[3]); -- seq_printf(seq, "Vendor info : %s\n", -- chtostr((u8 *) (work32 + 2), 16)); -- seq_printf(seq, "Product info : %s\n", -- chtostr((u8 *) (work32 + 6), 16)); -- seq_printf(seq, "Description : %s\n", -- chtostr((u8 *) (work32 + 10), 16)); -- seq_printf(seq, "Product rev. : %s\n", -- chtostr((u8 *) (work32 + 14), 8)); -+ seq_printf(seq, "Vendor info : %.16s\n", (u8 *) (work32 + 2)); -+ seq_printf(seq, "Product info : %.16s\n", (u8 *) (work32 + 6)); -+ seq_printf(seq, "Description : %.16s\n", (u8 *) (work32 + 10)); -+ seq_printf(seq, "Product rev. : %.8s\n", (u8 *) (work32 + 14)); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, (u8 *) (work32 + 16), -@@ -1324,10 +1312,8 @@ static int i2o_seq_show_ddm_identity(str - } - - seq_printf(seq, "Registering DDM TID : 0x%03x\n", result.ddm_tid); -- seq_printf(seq, "Module name : %s\n", -- chtostr(result.module_name, 24)); -- seq_printf(seq, "Module revision : %s\n", -- chtostr(result.module_rev, 8)); -+ seq_printf(seq, "Module name : %.24s\n", result.module_name); -+ seq_printf(seq, "Module revision : %.8s\n", result.module_rev); - - seq_printf(seq, "Serial number : "); - print_serial_number(seq, result.serial_number, sizeof(result) - 36); -@@ -1358,14 +1344,10 @@ static int i2o_seq_show_uinfo(struct seq - return 0; - } - -- seq_printf(seq, "Device name : %s\n", -- chtostr(result.device_name, 64)); -- seq_printf(seq, "Service name : %s\n", -- chtostr(result.service_name, 64)); -- seq_printf(seq, "Physical name : %s\n", -- chtostr(result.physical_location, 64)); -- seq_printf(seq, "Instance number : %s\n", -- chtostr(result.instance_number, 4)); -+ seq_printf(seq, "Device name : %.64s\n", result.device_name); -+ seq_printf(seq, "Service name : %.64s\n", result.service_name); -+ seq_printf(seq, "Physical name : %.64s\n", result.physical_location); -+ seq_printf(seq, "Instance number : %.4s\n", result.instance_number); - - return 0; - } -diff -urNp linux-3.0.4/drivers/message/i2o/iop.c linux-3.0.4/drivers/message/i2o/iop.c ---- linux-3.0.4/drivers/message/i2o/iop.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/message/i2o/iop.c 2011-08-23 21:47:55.000000000 -0400 -@@ -111,10 +111,10 @@ u32 i2o_cntxt_list_add(struct i2o_contro - - spin_lock_irqsave(&c->context_list_lock, flags); - -- if (unlikely(atomic_inc_and_test(&c->context_list_counter))) -- atomic_inc(&c->context_list_counter); -+ if (unlikely(atomic_inc_and_test_unchecked(&c->context_list_counter))) -+ atomic_inc_unchecked(&c->context_list_counter); - -- entry->context = atomic_read(&c->context_list_counter); -+ entry->context = atomic_read_unchecked(&c->context_list_counter); - - list_add(&entry->list, &c->context_list); - -@@ -1077,7 +1077,7 @@ struct i2o_controller *i2o_iop_alloc(voi - - #if BITS_PER_LONG == 64 - spin_lock_init(&c->context_list_lock); -- atomic_set(&c->context_list_counter, 0); -+ atomic_set_unchecked(&c->context_list_counter, 0); - INIT_LIST_HEAD(&c->context_list); - #endif - -diff -urNp linux-3.0.4/drivers/mfd/abx500-core.c linux-3.0.4/drivers/mfd/abx500-core.c ---- linux-3.0.4/drivers/mfd/abx500-core.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/abx500-core.c 2011-08-23 21:47:55.000000000 -0400 -@@ -14,7 +14,7 @@ static LIST_HEAD(abx500_list); - - struct abx500_device_entry { - struct list_head list; -- struct abx500_ops ops; -+ abx500_ops_no_const ops; - struct device *dev; - }; - -diff -urNp linux-3.0.4/drivers/mfd/janz-cmodio.c linux-3.0.4/drivers/mfd/janz-cmodio.c ---- linux-3.0.4/drivers/mfd/janz-cmodio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/janz-cmodio.c 2011-08-23 21:47:55.000000000 -0400 -@@ -13,6 +13,7 @@ - - #include - #include -+#include - #include - #include - #include -diff -urNp linux-3.0.4/drivers/mfd/wm8350-i2c.c linux-3.0.4/drivers/mfd/wm8350-i2c.c ---- linux-3.0.4/drivers/mfd/wm8350-i2c.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mfd/wm8350-i2c.c 2011-08-23 21:48:14.000000000 -0400 -@@ -44,6 +44,8 @@ static int wm8350_i2c_write_device(struc - u8 msg[(WM8350_MAX_REGISTER << 1) + 1]; - int ret; - -+ pax_track_stack(); -+ - if (bytes > ((WM8350_MAX_REGISTER << 1) + 1)) - return -EINVAL; - -diff -urNp linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c ---- linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.c 2011-08-23 21:47:55.000000000 -0400 -@@ -435,7 +435,7 @@ static irqreturn_t lis302dl_interrupt(in - * the lid is closed. This leads to interrupts as soon as a little move - * is done. - */ -- atomic_inc(&lis3_dev.count); -+ atomic_inc_unchecked(&lis3_dev.count); - - wake_up_interruptible(&lis3_dev.misc_wait); - kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN); -@@ -518,7 +518,7 @@ static int lis3lv02d_misc_open(struct in - if (lis3_dev.pm_dev) - pm_runtime_get_sync(lis3_dev.pm_dev); - -- atomic_set(&lis3_dev.count, 0); -+ atomic_set_unchecked(&lis3_dev.count, 0); - return 0; - } - -@@ -545,7 +545,7 @@ static ssize_t lis3lv02d_misc_read(struc - add_wait_queue(&lis3_dev.misc_wait, &wait); - while (true) { - set_current_state(TASK_INTERRUPTIBLE); -- data = atomic_xchg(&lis3_dev.count, 0); -+ data = atomic_xchg_unchecked(&lis3_dev.count, 0); - if (data) - break; - -@@ -583,7 +583,7 @@ out: - static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait) - { - poll_wait(file, &lis3_dev.misc_wait, wait); -- if (atomic_read(&lis3_dev.count)) -+ if (atomic_read_unchecked(&lis3_dev.count)) - return POLLIN | POLLRDNORM; - return 0; - } -diff -urNp linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h ---- linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/lis3lv02d/lis3lv02d.h 2011-08-23 21:47:55.000000000 -0400 -@@ -265,7 +265,7 @@ struct lis3lv02d { - struct input_polled_dev *idev; /* input device */ - struct platform_device *pdev; /* platform device */ - struct regulator_bulk_data regulators[2]; -- atomic_t count; /* interrupt count after last read */ -+ atomic_unchecked_t count; /* interrupt count after last read */ - union axis_conversion ac; /* hw -> logical axis */ - int mapped_btns[3]; - -diff -urNp linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c ---- linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/gruhandles.c 2011-08-23 21:47:55.000000000 -0400 -@@ -44,8 +44,8 @@ static void update_mcs_stats(enum mcs_op - unsigned long nsec; - - nsec = CLKS2NSEC(clks); -- atomic_long_inc(&mcs_op_statistics[op].count); -- atomic_long_add(nsec, &mcs_op_statistics[op].total); -+ atomic_long_inc_unchecked(&mcs_op_statistics[op].count); -+ atomic_long_add_unchecked(nsec, &mcs_op_statistics[op].total); - if (mcs_op_statistics[op].max < nsec) - mcs_op_statistics[op].max = nsec; - } -diff -urNp linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c ---- linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/gruprocfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -32,9 +32,9 @@ - - #define printstat(s, f) printstat_val(s, &gru_stats.f, #f) - --static void printstat_val(struct seq_file *s, atomic_long_t *v, char *id) -+static void printstat_val(struct seq_file *s, atomic_long_unchecked_t *v, char *id) - { -- unsigned long val = atomic_long_read(v); -+ unsigned long val = atomic_long_read_unchecked(v); - - seq_printf(s, "%16lu %s\n", val, id); - } -@@ -134,8 +134,8 @@ static int mcs_statistics_show(struct se - - seq_printf(s, "%-20s%12s%12s%12s\n", "#id", "count", "aver-clks", "max-clks"); - for (op = 0; op < mcsop_last; op++) { -- count = atomic_long_read(&mcs_op_statistics[op].count); -- total = atomic_long_read(&mcs_op_statistics[op].total); -+ count = atomic_long_read_unchecked(&mcs_op_statistics[op].count); -+ total = atomic_long_read_unchecked(&mcs_op_statistics[op].total); - max = mcs_op_statistics[op].max; - seq_printf(s, "%-20s%12ld%12ld%12ld\n", id[op], count, - count ? total / count : 0, max); -diff -urNp linux-3.0.4/drivers/misc/sgi-gru/grutables.h linux-3.0.4/drivers/misc/sgi-gru/grutables.h ---- linux-3.0.4/drivers/misc/sgi-gru/grutables.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-gru/grutables.h 2011-08-23 21:47:55.000000000 -0400 -@@ -167,82 +167,82 @@ extern unsigned int gru_max_gids; - * GRU statistics. - */ - struct gru_stats_s { -- atomic_long_t vdata_alloc; -- atomic_long_t vdata_free; -- atomic_long_t gts_alloc; -- atomic_long_t gts_free; -- atomic_long_t gms_alloc; -- atomic_long_t gms_free; -- atomic_long_t gts_double_allocate; -- atomic_long_t assign_context; -- atomic_long_t assign_context_failed; -- atomic_long_t free_context; -- atomic_long_t load_user_context; -- atomic_long_t load_kernel_context; -- atomic_long_t lock_kernel_context; -- atomic_long_t unlock_kernel_context; -- atomic_long_t steal_user_context; -- atomic_long_t steal_kernel_context; -- atomic_long_t steal_context_failed; -- atomic_long_t nopfn; -- atomic_long_t asid_new; -- atomic_long_t asid_next; -- atomic_long_t asid_wrap; -- atomic_long_t asid_reuse; -- atomic_long_t intr; -- atomic_long_t intr_cbr; -- atomic_long_t intr_tfh; -- atomic_long_t intr_spurious; -- atomic_long_t intr_mm_lock_failed; -- atomic_long_t call_os; -- atomic_long_t call_os_wait_queue; -- atomic_long_t user_flush_tlb; -- atomic_long_t user_unload_context; -- atomic_long_t user_exception; -- atomic_long_t set_context_option; -- atomic_long_t check_context_retarget_intr; -- atomic_long_t check_context_unload; -- atomic_long_t tlb_dropin; -- atomic_long_t tlb_preload_page; -- atomic_long_t tlb_dropin_fail_no_asid; -- atomic_long_t tlb_dropin_fail_upm; -- atomic_long_t tlb_dropin_fail_invalid; -- atomic_long_t tlb_dropin_fail_range_active; -- atomic_long_t tlb_dropin_fail_idle; -- atomic_long_t tlb_dropin_fail_fmm; -- atomic_long_t tlb_dropin_fail_no_exception; -- atomic_long_t tfh_stale_on_fault; -- atomic_long_t mmu_invalidate_range; -- atomic_long_t mmu_invalidate_page; -- atomic_long_t flush_tlb; -- atomic_long_t flush_tlb_gru; -- atomic_long_t flush_tlb_gru_tgh; -- atomic_long_t flush_tlb_gru_zero_asid; -- -- atomic_long_t copy_gpa; -- atomic_long_t read_gpa; -- -- atomic_long_t mesq_receive; -- atomic_long_t mesq_receive_none; -- atomic_long_t mesq_send; -- atomic_long_t mesq_send_failed; -- atomic_long_t mesq_noop; -- atomic_long_t mesq_send_unexpected_error; -- atomic_long_t mesq_send_lb_overflow; -- atomic_long_t mesq_send_qlimit_reached; -- atomic_long_t mesq_send_amo_nacked; -- atomic_long_t mesq_send_put_nacked; -- atomic_long_t mesq_page_overflow; -- atomic_long_t mesq_qf_locked; -- atomic_long_t mesq_qf_noop_not_full; -- atomic_long_t mesq_qf_switch_head_failed; -- atomic_long_t mesq_qf_unexpected_error; -- atomic_long_t mesq_noop_unexpected_error; -- atomic_long_t mesq_noop_lb_overflow; -- atomic_long_t mesq_noop_qlimit_reached; -- atomic_long_t mesq_noop_amo_nacked; -- atomic_long_t mesq_noop_put_nacked; -- atomic_long_t mesq_noop_page_overflow; -+ atomic_long_unchecked_t vdata_alloc; -+ atomic_long_unchecked_t vdata_free; -+ atomic_long_unchecked_t gts_alloc; -+ atomic_long_unchecked_t gts_free; -+ atomic_long_unchecked_t gms_alloc; -+ atomic_long_unchecked_t gms_free; -+ atomic_long_unchecked_t gts_double_allocate; -+ atomic_long_unchecked_t assign_context; -+ atomic_long_unchecked_t assign_context_failed; -+ atomic_long_unchecked_t free_context; -+ atomic_long_unchecked_t load_user_context; -+ atomic_long_unchecked_t load_kernel_context; -+ atomic_long_unchecked_t lock_kernel_context; -+ atomic_long_unchecked_t unlock_kernel_context; -+ atomic_long_unchecked_t steal_user_context; -+ atomic_long_unchecked_t steal_kernel_context; -+ atomic_long_unchecked_t steal_context_failed; -+ atomic_long_unchecked_t nopfn; -+ atomic_long_unchecked_t asid_new; -+ atomic_long_unchecked_t asid_next; -+ atomic_long_unchecked_t asid_wrap; -+ atomic_long_unchecked_t asid_reuse; -+ atomic_long_unchecked_t intr; -+ atomic_long_unchecked_t intr_cbr; -+ atomic_long_unchecked_t intr_tfh; -+ atomic_long_unchecked_t intr_spurious; -+ atomic_long_unchecked_t intr_mm_lock_failed; -+ atomic_long_unchecked_t call_os; -+ atomic_long_unchecked_t call_os_wait_queue; -+ atomic_long_unchecked_t user_flush_tlb; -+ atomic_long_unchecked_t user_unload_context; -+ atomic_long_unchecked_t user_exception; -+ atomic_long_unchecked_t set_context_option; -+ atomic_long_unchecked_t check_context_retarget_intr; -+ atomic_long_unchecked_t check_context_unload; -+ atomic_long_unchecked_t tlb_dropin; -+ atomic_long_unchecked_t tlb_preload_page; -+ atomic_long_unchecked_t tlb_dropin_fail_no_asid; -+ atomic_long_unchecked_t tlb_dropin_fail_upm; -+ atomic_long_unchecked_t tlb_dropin_fail_invalid; -+ atomic_long_unchecked_t tlb_dropin_fail_range_active; -+ atomic_long_unchecked_t tlb_dropin_fail_idle; -+ atomic_long_unchecked_t tlb_dropin_fail_fmm; -+ atomic_long_unchecked_t tlb_dropin_fail_no_exception; -+ atomic_long_unchecked_t tfh_stale_on_fault; -+ atomic_long_unchecked_t mmu_invalidate_range; -+ atomic_long_unchecked_t mmu_invalidate_page; -+ atomic_long_unchecked_t flush_tlb; -+ atomic_long_unchecked_t flush_tlb_gru; -+ atomic_long_unchecked_t flush_tlb_gru_tgh; -+ atomic_long_unchecked_t flush_tlb_gru_zero_asid; -+ -+ atomic_long_unchecked_t copy_gpa; -+ atomic_long_unchecked_t read_gpa; -+ -+ atomic_long_unchecked_t mesq_receive; -+ atomic_long_unchecked_t mesq_receive_none; -+ atomic_long_unchecked_t mesq_send; -+ atomic_long_unchecked_t mesq_send_failed; -+ atomic_long_unchecked_t mesq_noop; -+ atomic_long_unchecked_t mesq_send_unexpected_error; -+ atomic_long_unchecked_t mesq_send_lb_overflow; -+ atomic_long_unchecked_t mesq_send_qlimit_reached; -+ atomic_long_unchecked_t mesq_send_amo_nacked; -+ atomic_long_unchecked_t mesq_send_put_nacked; -+ atomic_long_unchecked_t mesq_page_overflow; -+ atomic_long_unchecked_t mesq_qf_locked; -+ atomic_long_unchecked_t mesq_qf_noop_not_full; -+ atomic_long_unchecked_t mesq_qf_switch_head_failed; -+ atomic_long_unchecked_t mesq_qf_unexpected_error; -+ atomic_long_unchecked_t mesq_noop_unexpected_error; -+ atomic_long_unchecked_t mesq_noop_lb_overflow; -+ atomic_long_unchecked_t mesq_noop_qlimit_reached; -+ atomic_long_unchecked_t mesq_noop_amo_nacked; -+ atomic_long_unchecked_t mesq_noop_put_nacked; -+ atomic_long_unchecked_t mesq_noop_page_overflow; - - }; - -@@ -251,8 +251,8 @@ enum mcs_op {cchop_allocate, cchop_start - tghop_invalidate, mcsop_last}; - - struct mcs_op_statistic { -- atomic_long_t count; -- atomic_long_t total; -+ atomic_long_unchecked_t count; -+ atomic_long_unchecked_t total; - unsigned long max; - }; - -@@ -275,7 +275,7 @@ extern struct mcs_op_statistic mcs_op_st - - #define STAT(id) do { \ - if (gru_options & OPT_STATS) \ -- atomic_long_inc(&gru_stats.id); \ -+ atomic_long_inc_unchecked(&gru_stats.id); \ - } while (0) - - #ifdef CONFIG_SGI_GRU_DEBUG -diff -urNp linux-3.0.4/drivers/misc/sgi-xp/xp.h linux-3.0.4/drivers/misc/sgi-xp/xp.h ---- linux-3.0.4/drivers/misc/sgi-xp/xp.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/misc/sgi-xp/xp.h 2011-08-23 21:47:55.000000000 -0400 -@@ -289,7 +289,7 @@ struct xpc_interface { - xpc_notify_func, void *); - void (*received) (short, int, void *); - enum xp_retval (*partid_to_nasids) (short, void *); --}; -+} __no_const; - - extern struct xpc_interface xpc_interface; - -diff -urNp linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c ---- linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0001.c 2011-08-23 21:48:14.000000000 -0400 -@@ -757,6 +757,8 @@ static int chip_ready (struct map_info * - struct cfi_pri_intelext *cfip = cfi->cmdset_priv; - unsigned long timeo = jiffies + HZ; - -+ pax_track_stack(); -+ - /* Prevent setting state FL_SYNCING for chip in suspended state. */ - if (mode == FL_SYNCING && chip->oldstate != FL_READY) - goto sleep; -@@ -1653,6 +1655,8 @@ static int __xipram do_write_buffer(stru - unsigned long initial_adr; - int initial_len = len; - -+ pax_track_stack(); -+ - wbufsize = cfi_interleave(cfi) << cfi->cfiq->MaxBufWriteSize; - adr += chip->start; - initial_adr = adr; -@@ -1871,6 +1875,8 @@ static int __xipram do_erase_oneblock(st - int retries = 3; - int ret; - -+ pax_track_stack(); -+ - adr += chip->start; - - retry: -diff -urNp linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c ---- linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/chips/cfi_cmdset_0020.c 2011-08-23 21:48:14.000000000 -0400 -@@ -255,6 +255,8 @@ static inline int do_read_onechip(struct - unsigned long cmd_addr; - struct cfi_private *cfi = map->fldrv_priv; - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Ensure cmd read/writes are aligned. */ -@@ -429,6 +431,8 @@ static inline int do_write_buffer(struct - DECLARE_WAITQUEUE(wait, current); - int wbufsize, z; - -+ pax_track_stack(); -+ - /* M58LW064A requires bus alignment for buffer wriets -- saw */ - if (adr & (map_bankwidth(map)-1)) - return -EINVAL; -@@ -743,6 +747,8 @@ static inline int do_erase_oneblock(stru - DECLARE_WAITQUEUE(wait, current); - int ret = 0; - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -@@ -1048,6 +1054,8 @@ static inline int do_lock_oneblock(struc - unsigned long timeo = jiffies + HZ; - DECLARE_WAITQUEUE(wait, current); - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -@@ -1197,6 +1205,8 @@ static inline int do_unlock_oneblock(str - unsigned long timeo = jiffies + HZ; - DECLARE_WAITQUEUE(wait, current); - -+ pax_track_stack(); -+ - adr += chip->start; - - /* Let's determine this according to the interleave only once */ -diff -urNp linux-3.0.4/drivers/mtd/devices/doc2000.c linux-3.0.4/drivers/mtd/devices/doc2000.c ---- linux-3.0.4/drivers/mtd/devices/doc2000.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/devices/doc2000.c 2011-08-23 21:47:55.000000000 -0400 -@@ -776,7 +776,7 @@ static int doc_write(struct mtd_info *mt - - /* The ECC will not be calculated correctly if less than 512 is written */ - /* DBB- -- if (len != 0x200 && eccbuf) -+ if (len != 0x200) - printk(KERN_WARNING - "ECC needs a full sector write (adr: %lx size %lx)\n", - (long) to, (long) len); -diff -urNp linux-3.0.4/drivers/mtd/devices/doc2001.c linux-3.0.4/drivers/mtd/devices/doc2001.c ---- linux-3.0.4/drivers/mtd/devices/doc2001.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/devices/doc2001.c 2011-08-23 21:47:55.000000000 -0400 -@@ -393,7 +393,7 @@ static int doc_read (struct mtd_info *mt - struct Nand *mychip = &this->chips[from >> (this->chipshift)]; - - /* Don't allow read past end of device */ -- if (from >= this->totlen) -+ if (from >= this->totlen || !len) - return -EINVAL; - - /* Don't allow a single read to cross a 512-byte block boundary */ -diff -urNp linux-3.0.4/drivers/mtd/ftl.c linux-3.0.4/drivers/mtd/ftl.c ---- linux-3.0.4/drivers/mtd/ftl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/ftl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -474,6 +474,8 @@ static int copy_erase_unit(partition_t * - loff_t offset; - uint16_t srcunitswap = cpu_to_le16(srcunit); - -+ pax_track_stack(); -+ - eun = &part->EUNInfo[srcunit]; - xfer = &part->XferInfo[xferunit]; - DEBUG(2, "ftl_cs: copying block 0x%x to 0x%x\n", -diff -urNp linux-3.0.4/drivers/mtd/inftlcore.c linux-3.0.4/drivers/mtd/inftlcore.c ---- linux-3.0.4/drivers/mtd/inftlcore.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/inftlcore.c 2011-08-23 21:48:14.000000000 -0400 -@@ -259,6 +259,8 @@ static u16 INFTL_foldchain(struct INFTLr - struct inftl_oob oob; - size_t retlen; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: INFTL_foldchain(inftl=%p,thisVUC=%d," - "pending=%d)\n", inftl, thisVUC, pendingblock); - -diff -urNp linux-3.0.4/drivers/mtd/inftlmount.c linux-3.0.4/drivers/mtd/inftlmount.c ---- linux-3.0.4/drivers/mtd/inftlmount.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/inftlmount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -53,6 +53,8 @@ static int find_boot_record(struct INFTL - struct INFTLPartition *ip; - size_t retlen; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL3, "INFTL: find_boot_record(inftl=%p)\n", inftl); - - /* -diff -urNp linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c ---- linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/lpddr/qinfo_probe.c 2011-08-23 21:48:14.000000000 -0400 -@@ -106,6 +106,8 @@ static int lpddr_pfow_present(struct map - { - map_word pfow_val[4]; - -+ pax_track_stack(); -+ - /* Check identification string */ - pfow_val[0] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_P); - pfow_val[1] = map_read(map, map->pfow_base + PFOW_QUERY_STRING_F); -diff -urNp linux-3.0.4/drivers/mtd/mtdchar.c linux-3.0.4/drivers/mtd/mtdchar.c ---- linux-3.0.4/drivers/mtd/mtdchar.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/mtdchar.c 2011-08-23 21:48:14.000000000 -0400 -@@ -553,6 +553,8 @@ static int mtd_ioctl(struct file *file, - u_long size; - struct mtd_info_user info; - -+ pax_track_stack(); -+ - DEBUG(MTD_DEBUG_LEVEL0, "MTD_ioctl\n"); - - size = (cmd & IOCSIZE_MASK) >> IOCSIZE_SHIFT; -diff -urNp linux-3.0.4/drivers/mtd/nand/denali.c linux-3.0.4/drivers/mtd/nand/denali.c ---- linux-3.0.4/drivers/mtd/nand/denali.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nand/denali.c 2011-08-23 21:47:55.000000000 -0400 -@@ -26,6 +26,7 @@ - #include - #include - #include -+#include - - #include "denali.h" - -diff -urNp linux-3.0.4/drivers/mtd/nftlcore.c linux-3.0.4/drivers/mtd/nftlcore.c ---- linux-3.0.4/drivers/mtd/nftlcore.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nftlcore.c 2011-08-23 21:48:14.000000000 -0400 -@@ -264,6 +264,8 @@ static u16 NFTL_foldchain (struct NFTLre - int inplace = 1; - size_t retlen; - -+ pax_track_stack(); -+ - memset(BlockMap, 0xff, sizeof(BlockMap)); - memset(BlockFreeFound, 0, sizeof(BlockFreeFound)); - -diff -urNp linux-3.0.4/drivers/mtd/nftlmount.c linux-3.0.4/drivers/mtd/nftlmount.c ---- linux-3.0.4/drivers/mtd/nftlmount.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/nftlmount.c 2011-08-23 21:48:14.000000000 -0400 -@@ -24,6 +24,7 @@ - #include - #include - #include -+#include - #include - #include - #include -@@ -45,6 +46,8 @@ static int find_boot_record(struct NFTLr - struct mtd_info *mtd = nftl->mbd.mtd; - unsigned int i; - -+ pax_track_stack(); -+ - /* Assume logical EraseSize == physical erasesize for starting the scan. - We'll sort it out later if we find a MediaHeader which says otherwise */ - /* Actually, we won't. The new DiskOnChip driver has already scanned -diff -urNp linux-3.0.4/drivers/mtd/ubi/build.c linux-3.0.4/drivers/mtd/ubi/build.c ---- linux-3.0.4/drivers/mtd/ubi/build.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/mtd/ubi/build.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1287,7 +1287,7 @@ module_exit(ubi_exit); - static int __init bytes_str_to_int(const char *str) - { - char *endp; -- unsigned long result; -+ unsigned long result, scale = 1; - - result = simple_strtoul(str, &endp, 0); - if (str == endp || result >= INT_MAX) { -@@ -1298,11 +1298,11 @@ static int __init bytes_str_to_int(const - - switch (*endp) { - case 'G': -- result *= 1024; -+ scale *= 1024; - case 'M': -- result *= 1024; -+ scale *= 1024; - case 'K': -- result *= 1024; -+ scale *= 1024; - if (endp[1] == 'i' && endp[2] == 'B') - endp += 2; - case '\0': -@@ -1313,7 +1313,13 @@ static int __init bytes_str_to_int(const - return -EINVAL; - } - -- return result; -+ if ((intoverflow_t)result*scale >= INT_MAX) { -+ printk(KERN_ERR "UBI error: incorrect bytes count: \"%s\"\n", -+ str); -+ return -EINVAL; -+ } -+ -+ return result*scale; - } - - /** -diff -urNp linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c ---- linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bna/bfa_ioc_ct.c 2011-08-23 21:47:55.000000000 -0400 -@@ -48,7 +48,21 @@ static void bfa_ioc_ct_sync_ack(struct b - static bool bfa_ioc_ct_sync_complete(struct bfa_ioc *ioc); - static enum bfa_status bfa_ioc_ct_pll_init(void __iomem *rb, bool fcmode); - --static struct bfa_ioc_hwif nw_hwif_ct; -+static struct bfa_ioc_hwif nw_hwif_ct = { -+ .ioc_pll_init = bfa_ioc_ct_pll_init, -+ .ioc_firmware_lock = bfa_ioc_ct_firmware_lock, -+ .ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock, -+ .ioc_reg_init = bfa_ioc_ct_reg_init, -+ .ioc_map_port = bfa_ioc_ct_map_port, -+ .ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set, -+ .ioc_notify_fail = bfa_ioc_ct_notify_fail, -+ .ioc_ownership_reset = bfa_ioc_ct_ownership_reset, -+ .ioc_sync_start = bfa_ioc_ct_sync_start, -+ .ioc_sync_join = bfa_ioc_ct_sync_join, -+ .ioc_sync_leave = bfa_ioc_ct_sync_leave, -+ .ioc_sync_ack = bfa_ioc_ct_sync_ack, -+ .ioc_sync_complete = bfa_ioc_ct_sync_complete -+}; - - /** - * Called from bfa_ioc_attach() to map asic specific calls. -@@ -56,20 +70,6 @@ static struct bfa_ioc_hwif nw_hwif_ct; - void - bfa_nw_ioc_set_ct_hwif(struct bfa_ioc *ioc) - { -- nw_hwif_ct.ioc_pll_init = bfa_ioc_ct_pll_init; -- nw_hwif_ct.ioc_firmware_lock = bfa_ioc_ct_firmware_lock; -- nw_hwif_ct.ioc_firmware_unlock = bfa_ioc_ct_firmware_unlock; -- nw_hwif_ct.ioc_reg_init = bfa_ioc_ct_reg_init; -- nw_hwif_ct.ioc_map_port = bfa_ioc_ct_map_port; -- nw_hwif_ct.ioc_isr_mode_set = bfa_ioc_ct_isr_mode_set; -- nw_hwif_ct.ioc_notify_fail = bfa_ioc_ct_notify_fail; -- nw_hwif_ct.ioc_ownership_reset = bfa_ioc_ct_ownership_reset; -- nw_hwif_ct.ioc_sync_start = bfa_ioc_ct_sync_start; -- nw_hwif_ct.ioc_sync_join = bfa_ioc_ct_sync_join; -- nw_hwif_ct.ioc_sync_leave = bfa_ioc_ct_sync_leave; -- nw_hwif_ct.ioc_sync_ack = bfa_ioc_ct_sync_ack; -- nw_hwif_ct.ioc_sync_complete = bfa_ioc_ct_sync_complete; -- - ioc->ioc_hwif = &nw_hwif_ct; - } - -diff -urNp linux-3.0.4/drivers/net/bna/bnad.c linux-3.0.4/drivers/net/bna/bnad.c ---- linux-3.0.4/drivers/net/bna/bnad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bna/bnad.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1681,7 +1681,14 @@ bnad_setup_tx(struct bnad *bnad, uint tx - struct bna_intr_info *intr_info = - &res_info[BNA_TX_RES_INTR_T_TXCMPL].res_u.intr_info; - struct bna_tx_config *tx_config = &bnad->tx_config[tx_id]; -- struct bna_tx_event_cbfn tx_cbfn; -+ static struct bna_tx_event_cbfn tx_cbfn = { -+ /* Initialize the tx event handlers */ -+ .tcb_setup_cbfn = bnad_cb_tcb_setup, -+ .tcb_destroy_cbfn = bnad_cb_tcb_destroy, -+ .tx_stall_cbfn = bnad_cb_tx_stall, -+ .tx_resume_cbfn = bnad_cb_tx_resume, -+ .tx_cleanup_cbfn = bnad_cb_tx_cleanup -+ }; - struct bna_tx *tx; - unsigned long flags; - -@@ -1690,13 +1697,6 @@ bnad_setup_tx(struct bnad *bnad, uint tx - tx_config->txq_depth = bnad->txq_depth; - tx_config->tx_type = BNA_TX_T_REGULAR; - -- /* Initialize the tx event handlers */ -- tx_cbfn.tcb_setup_cbfn = bnad_cb_tcb_setup; -- tx_cbfn.tcb_destroy_cbfn = bnad_cb_tcb_destroy; -- tx_cbfn.tx_stall_cbfn = bnad_cb_tx_stall; -- tx_cbfn.tx_resume_cbfn = bnad_cb_tx_resume; -- tx_cbfn.tx_cleanup_cbfn = bnad_cb_tx_cleanup; -- - /* Get BNA's resource requirement for one tx object */ - spin_lock_irqsave(&bnad->bna_lock, flags); - bna_tx_res_req(bnad->num_txq_per_tx, -@@ -1827,21 +1827,21 @@ bnad_setup_rx(struct bnad *bnad, uint rx - struct bna_intr_info *intr_info = - &res_info[BNA_RX_RES_T_INTR].res_u.intr_info; - struct bna_rx_config *rx_config = &bnad->rx_config[rx_id]; -- struct bna_rx_event_cbfn rx_cbfn; -+ static struct bna_rx_event_cbfn rx_cbfn = { -+ /* Initialize the Rx event handlers */ -+ .rcb_setup_cbfn = bnad_cb_rcb_setup, -+ .rcb_destroy_cbfn = bnad_cb_rcb_destroy, -+ .ccb_setup_cbfn = bnad_cb_ccb_setup, -+ .ccb_destroy_cbfn = bnad_cb_ccb_destroy, -+ .rx_cleanup_cbfn = bnad_cb_rx_cleanup, -+ .rx_post_cbfn = bnad_cb_rx_post -+ }; - struct bna_rx *rx; - unsigned long flags; - - /* Initialize the Rx object configuration */ - bnad_init_rx_config(bnad, rx_config); - -- /* Initialize the Rx event handlers */ -- rx_cbfn.rcb_setup_cbfn = bnad_cb_rcb_setup; -- rx_cbfn.rcb_destroy_cbfn = bnad_cb_rcb_destroy; -- rx_cbfn.ccb_setup_cbfn = bnad_cb_ccb_setup; -- rx_cbfn.ccb_destroy_cbfn = bnad_cb_ccb_destroy; -- rx_cbfn.rx_cleanup_cbfn = bnad_cb_rx_cleanup; -- rx_cbfn.rx_post_cbfn = bnad_cb_rx_post; -- - /* Get BNA's resource requirement for one Rx object */ - spin_lock_irqsave(&bnad->bna_lock, flags); - bna_rx_res_req(rx_config, res_info); -diff -urNp linux-3.0.4/drivers/net/bnx2.c linux-3.0.4/drivers/net/bnx2.c ---- linux-3.0.4/drivers/net/bnx2.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bnx2.c 2011-08-23 21:48:14.000000000 -0400 -@@ -5828,6 +5828,8 @@ bnx2_test_nvram(struct bnx2 *bp) - int rc = 0; - u32 magic, csum; - -+ pax_track_stack(); -+ - if ((rc = bnx2_nvram_read(bp, 0, data, 4)) != 0) - goto test_nvram_done; - -diff -urNp linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c ---- linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/bnx2x/bnx2x_ethtool.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1705,6 +1705,8 @@ static int bnx2x_test_nvram(struct bnx2x - int i, rc; - u32 magic, crc; - -+ pax_track_stack(); -+ - if (BP_NOMCP(bp)) - return 0; - -diff -urNp linux-3.0.4/drivers/net/cxgb3/l2t.h linux-3.0.4/drivers/net/cxgb3/l2t.h ---- linux-3.0.4/drivers/net/cxgb3/l2t.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb3/l2t.h 2011-08-23 21:47:55.000000000 -0400 -@@ -86,7 +86,7 @@ typedef void (*arp_failure_handler_func) - */ - struct l2t_skb_cb { - arp_failure_handler_func arp_failure_handler; --}; -+} __no_const; - - #define L2T_SKB_CB(skb) ((struct l2t_skb_cb *)(skb)->cb) - -diff -urNp linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c ---- linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb4/cxgb4_main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3396,6 +3396,8 @@ static int __devinit enable_msix(struct - unsigned int nchan = adap->params.nports; - struct msix_entry entries[MAX_INGQ + 1]; - -+ pax_track_stack(); -+ - for (i = 0; i < ARRAY_SIZE(entries); ++i) - entries[i].entry = i; - -diff -urNp linux-3.0.4/drivers/net/cxgb4/t4_hw.c linux-3.0.4/drivers/net/cxgb4/t4_hw.c ---- linux-3.0.4/drivers/net/cxgb4/t4_hw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/cxgb4/t4_hw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -362,6 +362,8 @@ static int get_vpd_params(struct adapter - u8 vpd[VPD_LEN], csum; - unsigned int vpdr_len, kw_offset, id_len; - -+ pax_track_stack(); -+ - ret = pci_read_vpd(adapter->pdev, VPD_BASE, sizeof(vpd), vpd); - if (ret < 0) - return ret; -diff -urNp linux-3.0.4/drivers/net/e1000e/82571.c linux-3.0.4/drivers/net/e1000e/82571.c ---- linux-3.0.4/drivers/net/e1000e/82571.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/82571.c 2011-08-23 21:47:55.000000000 -0400 -@@ -239,7 +239,7 @@ static s32 e1000_init_mac_params_82571(s - { - struct e1000_hw *hw = &adapter->hw; - struct e1000_mac_info *mac = &hw->mac; -- struct e1000_mac_operations *func = &mac->ops; -+ e1000_mac_operations_no_const *func = &mac->ops; - u32 swsm = 0; - u32 swsm2 = 0; - bool force_clear_smbi = false; -diff -urNp linux-3.0.4/drivers/net/e1000e/es2lan.c linux-3.0.4/drivers/net/e1000e/es2lan.c ---- linux-3.0.4/drivers/net/e1000e/es2lan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/es2lan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -205,7 +205,7 @@ static s32 e1000_init_mac_params_80003es - { - struct e1000_hw *hw = &adapter->hw; - struct e1000_mac_info *mac = &hw->mac; -- struct e1000_mac_operations *func = &mac->ops; -+ e1000_mac_operations_no_const *func = &mac->ops; - - /* Set media type */ - switch (adapter->pdev->device) { -diff -urNp linux-3.0.4/drivers/net/e1000e/hw.h linux-3.0.4/drivers/net/e1000e/hw.h ---- linux-3.0.4/drivers/net/e1000e/hw.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/e1000e/hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -776,6 +776,7 @@ struct e1000_mac_operations { - void (*write_vfta)(struct e1000_hw *, u32, u32); - s32 (*read_mac_addr)(struct e1000_hw *); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - /* Function pointers for the PHY. */ - struct e1000_phy_operations { -@@ -799,6 +800,7 @@ struct e1000_phy_operations { - void (*power_up)(struct e1000_hw *); - void (*power_down)(struct e1000_hw *); - }; -+typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; - - /* Function pointers for the NVM. */ - struct e1000_nvm_operations { -@@ -810,9 +812,10 @@ struct e1000_nvm_operations { - s32 (*validate)(struct e1000_hw *); - s32 (*write)(struct e1000_hw *, u16, u16, u16 *); - }; -+typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - u8 addr[ETH_ALEN]; - u8 perm_addr[ETH_ALEN]; - -@@ -853,7 +856,7 @@ struct e1000_mac_info { - }; - - struct e1000_phy_info { -- struct e1000_phy_operations ops; -+ e1000_phy_operations_no_const ops; - - enum e1000_phy_type type; - -@@ -887,7 +890,7 @@ struct e1000_phy_info { - }; - - struct e1000_nvm_info { -- struct e1000_nvm_operations ops; -+ e1000_nvm_operations_no_const ops; - - enum e1000_nvm_type type; - enum e1000_nvm_override override; -diff -urNp linux-3.0.4/drivers/net/hamradio/6pack.c linux-3.0.4/drivers/net/hamradio/6pack.c ---- linux-3.0.4/drivers/net/hamradio/6pack.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/hamradio/6pack.c 2011-08-23 21:48:14.000000000 -0400 -@@ -463,6 +463,8 @@ static void sixpack_receive_buf(struct t - unsigned char buf[512]; - int count1; - -+ pax_track_stack(); -+ - if (!count) - return; - -diff -urNp linux-3.0.4/drivers/net/igb/e1000_hw.h linux-3.0.4/drivers/net/igb/e1000_hw.h ---- linux-3.0.4/drivers/net/igb/e1000_hw.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/igb/e1000_hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -314,6 +314,7 @@ struct e1000_mac_operations { - s32 (*read_mac_addr)(struct e1000_hw *); - s32 (*get_speed_and_duplex)(struct e1000_hw *, u16 *, u16 *); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - struct e1000_phy_operations { - s32 (*acquire)(struct e1000_hw *); -@@ -330,6 +331,7 @@ struct e1000_phy_operations { - s32 (*set_d3_lplu_state)(struct e1000_hw *, bool); - s32 (*write_reg)(struct e1000_hw *, u32, u16); - }; -+typedef struct e1000_phy_operations __no_const e1000_phy_operations_no_const; - - struct e1000_nvm_operations { - s32 (*acquire)(struct e1000_hw *); -@@ -339,6 +341,7 @@ struct e1000_nvm_operations { - s32 (*update)(struct e1000_hw *); - s32 (*validate)(struct e1000_hw *); - }; -+typedef struct e1000_nvm_operations __no_const e1000_nvm_operations_no_const; - - struct e1000_info { - s32 (*get_invariants)(struct e1000_hw *); -@@ -350,7 +353,7 @@ struct e1000_info { - extern const struct e1000_info e1000_82575_info; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - - u8 addr[6]; - u8 perm_addr[6]; -@@ -388,7 +391,7 @@ struct e1000_mac_info { - }; - - struct e1000_phy_info { -- struct e1000_phy_operations ops; -+ e1000_phy_operations_no_const ops; - - enum e1000_phy_type type; - -@@ -423,7 +426,7 @@ struct e1000_phy_info { - }; - - struct e1000_nvm_info { -- struct e1000_nvm_operations ops; -+ e1000_nvm_operations_no_const ops; - enum e1000_nvm_type type; - enum e1000_nvm_override override; - -@@ -468,6 +471,7 @@ struct e1000_mbx_operations { - s32 (*check_for_ack)(struct e1000_hw *, u16); - s32 (*check_for_rst)(struct e1000_hw *, u16); - }; -+typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; - - struct e1000_mbx_stats { - u32 msgs_tx; -@@ -479,7 +483,7 @@ struct e1000_mbx_stats { - }; - - struct e1000_mbx_info { -- struct e1000_mbx_operations ops; -+ e1000_mbx_operations_no_const ops; - struct e1000_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff -urNp linux-3.0.4/drivers/net/igbvf/vf.h linux-3.0.4/drivers/net/igbvf/vf.h ---- linux-3.0.4/drivers/net/igbvf/vf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/igbvf/vf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -189,9 +189,10 @@ struct e1000_mac_operations { - s32 (*read_mac_addr)(struct e1000_hw *); - s32 (*set_vfta)(struct e1000_hw *, u16, bool); - }; -+typedef struct e1000_mac_operations __no_const e1000_mac_operations_no_const; - - struct e1000_mac_info { -- struct e1000_mac_operations ops; -+ e1000_mac_operations_no_const ops; - u8 addr[6]; - u8 perm_addr[6]; - -@@ -213,6 +214,7 @@ struct e1000_mbx_operations { - s32 (*check_for_ack)(struct e1000_hw *); - s32 (*check_for_rst)(struct e1000_hw *); - }; -+typedef struct e1000_mbx_operations __no_const e1000_mbx_operations_no_const; - - struct e1000_mbx_stats { - u32 msgs_tx; -@@ -224,7 +226,7 @@ struct e1000_mbx_stats { - }; - - struct e1000_mbx_info { -- struct e1000_mbx_operations ops; -+ e1000_mbx_operations_no_const ops; - struct e1000_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff -urNp linux-3.0.4/drivers/net/ixgb/ixgb_main.c linux-3.0.4/drivers/net/ixgb/ixgb_main.c ---- linux-3.0.4/drivers/net/ixgb/ixgb_main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgb/ixgb_main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1070,6 +1070,8 @@ ixgb_set_multi(struct net_device *netdev - u32 rctl; - int i; - -+ pax_track_stack(); -+ - /* Check for Promiscuous and All Multicast modes */ - - rctl = IXGB_READ_REG(hw, RCTL); -diff -urNp linux-3.0.4/drivers/net/ixgb/ixgb_param.c linux-3.0.4/drivers/net/ixgb/ixgb_param.c ---- linux-3.0.4/drivers/net/ixgb/ixgb_param.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgb/ixgb_param.c 2011-08-23 21:48:14.000000000 -0400 -@@ -261,6 +261,9 @@ void __devinit - ixgb_check_options(struct ixgb_adapter *adapter) - { - int bd = adapter->bd_number; -+ -+ pax_track_stack(); -+ - if (bd >= IXGB_MAX_NIC) { - pr_notice("Warning: no configuration for board #%i\n", bd); - pr_notice("Using defaults for all values\n"); -diff -urNp linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h ---- linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgbe/ixgbe_type.h 2011-08-23 21:47:55.000000000 -0400 -@@ -2584,6 +2584,7 @@ struct ixgbe_eeprom_operations { - s32 (*update_checksum)(struct ixgbe_hw *); - u16 (*calc_checksum)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_eeprom_operations __no_const ixgbe_eeprom_operations_no_const; - - struct ixgbe_mac_operations { - s32 (*init_hw)(struct ixgbe_hw *); -@@ -2639,6 +2640,7 @@ struct ixgbe_mac_operations { - /* Flow Control */ - s32 (*fc_enable)(struct ixgbe_hw *, s32); - }; -+typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; - - struct ixgbe_phy_operations { - s32 (*identify)(struct ixgbe_hw *); -@@ -2658,9 +2660,10 @@ struct ixgbe_phy_operations { - s32 (*write_i2c_eeprom)(struct ixgbe_hw *, u8, u8); - s32 (*check_overtemp)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_phy_operations __no_const ixgbe_phy_operations_no_const; - - struct ixgbe_eeprom_info { -- struct ixgbe_eeprom_operations ops; -+ ixgbe_eeprom_operations_no_const ops; - enum ixgbe_eeprom_type type; - u32 semaphore_delay; - u16 word_size; -@@ -2670,7 +2673,7 @@ struct ixgbe_eeprom_info { - - #define IXGBE_FLAGS_DOUBLE_RESET_REQUIRED 0x01 - struct ixgbe_mac_info { -- struct ixgbe_mac_operations ops; -+ ixgbe_mac_operations_no_const ops; - enum ixgbe_mac_type type; - u8 addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; - u8 perm_addr[IXGBE_ETH_LENGTH_OF_ADDRESS]; -@@ -2698,7 +2701,7 @@ struct ixgbe_mac_info { - }; - - struct ixgbe_phy_info { -- struct ixgbe_phy_operations ops; -+ ixgbe_phy_operations_no_const ops; - struct mdio_if_info mdio; - enum ixgbe_phy_type type; - u32 id; -@@ -2726,6 +2729,7 @@ struct ixgbe_mbx_operations { - s32 (*check_for_ack)(struct ixgbe_hw *, u16); - s32 (*check_for_rst)(struct ixgbe_hw *, u16); - }; -+typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; - - struct ixgbe_mbx_stats { - u32 msgs_tx; -@@ -2737,7 +2741,7 @@ struct ixgbe_mbx_stats { - }; - - struct ixgbe_mbx_info { -- struct ixgbe_mbx_operations ops; -+ ixgbe_mbx_operations_no_const ops; - struct ixgbe_mbx_stats stats; - u32 timeout; - u32 usec_delay; -diff -urNp linux-3.0.4/drivers/net/ixgbevf/vf.h linux-3.0.4/drivers/net/ixgbevf/vf.h ---- linux-3.0.4/drivers/net/ixgbevf/vf.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ixgbevf/vf.h 2011-08-23 21:47:55.000000000 -0400 -@@ -70,6 +70,7 @@ struct ixgbe_mac_operations { - s32 (*clear_vfta)(struct ixgbe_hw *); - s32 (*set_vfta)(struct ixgbe_hw *, u32, u32, bool); - }; -+typedef struct ixgbe_mac_operations __no_const ixgbe_mac_operations_no_const; - - enum ixgbe_mac_type { - ixgbe_mac_unknown = 0, -@@ -79,7 +80,7 @@ enum ixgbe_mac_type { - }; - - struct ixgbe_mac_info { -- struct ixgbe_mac_operations ops; -+ ixgbe_mac_operations_no_const ops; - u8 addr[6]; - u8 perm_addr[6]; - -@@ -103,6 +104,7 @@ struct ixgbe_mbx_operations { - s32 (*check_for_ack)(struct ixgbe_hw *); - s32 (*check_for_rst)(struct ixgbe_hw *); - }; -+typedef struct ixgbe_mbx_operations __no_const ixgbe_mbx_operations_no_const; - - struct ixgbe_mbx_stats { - u32 msgs_tx; -@@ -114,7 +116,7 @@ struct ixgbe_mbx_stats { - }; - - struct ixgbe_mbx_info { -- struct ixgbe_mbx_operations ops; -+ ixgbe_mbx_operations_no_const ops; - struct ixgbe_mbx_stats stats; - u32 timeout; - u32 udelay; -diff -urNp linux-3.0.4/drivers/net/ksz884x.c linux-3.0.4/drivers/net/ksz884x.c ---- linux-3.0.4/drivers/net/ksz884x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ksz884x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -6534,6 +6534,8 @@ static void netdev_get_ethtool_stats(str - int rc; - u64 counter[TOTAL_PORT_COUNTER_NUM]; - -+ pax_track_stack(); -+ - mutex_lock(&hw_priv->lock); - n = SWITCH_PORT_NUM; - for (i = 0, p = port->first_port; i < port->mib_port_cnt; i++, p++) { -diff -urNp linux-3.0.4/drivers/net/mlx4/main.c linux-3.0.4/drivers/net/mlx4/main.c ---- linux-3.0.4/drivers/net/mlx4/main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/mlx4/main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -40,6 +40,7 @@ - #include - #include - #include -+#include - - #include - #include -@@ -764,6 +765,8 @@ static int mlx4_init_hca(struct mlx4_dev - u64 icm_size; - int err; - -+ pax_track_stack(); -+ - err = mlx4_QUERY_FW(dev); - if (err) { - if (err == -EACCES) -diff -urNp linux-3.0.4/drivers/net/niu.c linux-3.0.4/drivers/net/niu.c ---- linux-3.0.4/drivers/net/niu.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/net/niu.c 2011-08-23 21:48:14.000000000 -0400 -@@ -9056,6 +9056,8 @@ static void __devinit niu_try_msix(struc - int i, num_irqs, err; - u8 first_ldg; - -+ pax_track_stack(); -+ - first_ldg = (NIU_NUM_LDG / parent->num_ports) * np->port; - for (i = 0; i < (NIU_NUM_LDG / parent->num_ports); i++) - ldg_num_map[i] = first_ldg + i; -diff -urNp linux-3.0.4/drivers/net/pcnet32.c linux-3.0.4/drivers/net/pcnet32.c ---- linux-3.0.4/drivers/net/pcnet32.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/pcnet32.c 2011-08-23 21:47:55.000000000 -0400 -@@ -82,7 +82,7 @@ static int cards_found; - /* - * VLB I/O addresses - */ --static unsigned int pcnet32_portlist[] __initdata = -+static unsigned int pcnet32_portlist[] __devinitdata = - { 0x300, 0x320, 0x340, 0x360, 0 }; - - static int pcnet32_debug; -@@ -270,7 +270,7 @@ struct pcnet32_private { - struct sk_buff **rx_skbuff; - dma_addr_t *tx_dma_addr; - dma_addr_t *rx_dma_addr; -- struct pcnet32_access a; -+ struct pcnet32_access *a; - spinlock_t lock; /* Guard lock */ - unsigned int cur_rx, cur_tx; /* The next free ring entry */ - unsigned int rx_ring_size; /* current rx ring size */ -@@ -460,9 +460,9 @@ static void pcnet32_netif_start(struct n - u16 val; - - netif_wake_queue(dev); -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val &= 0x00ff; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - napi_enable(&lp->napi); - } - -@@ -730,7 +730,7 @@ static u32 pcnet32_get_link(struct net_d - r = mii_link_ok(&lp->mii_if); - } else if (lp->chip_version >= PCNET32_79C970A) { - ulong ioaddr = dev->base_addr; /* card base I/O address */ -- r = (lp->a.read_bcr(ioaddr, 4) != 0xc0); -+ r = (lp->a->read_bcr(ioaddr, 4) != 0xc0); - } else { /* can not detect link on really old chips */ - r = 1; - } -@@ -792,7 +792,7 @@ static int pcnet32_set_ringparam(struct - pcnet32_netif_stop(dev); - - spin_lock_irqsave(&lp->lock, flags); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ - - size = min(ering->tx_pending, (unsigned int)TX_MAX_RING_SIZE); - -@@ -868,7 +868,7 @@ static void pcnet32_ethtool_test(struct - static int pcnet32_loopback_test(struct net_device *dev, uint64_t * data1) - { - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; /* access to registers */ -+ struct pcnet32_access *a = lp->a; /* access to registers */ - ulong ioaddr = dev->base_addr; /* card base I/O address */ - struct sk_buff *skb; /* sk buff */ - int x, i; /* counters */ -@@ -888,21 +888,21 @@ static int pcnet32_loopback_test(struct - pcnet32_netif_stop(dev); - - spin_lock_irqsave(&lp->lock, flags); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* stop the chip */ - - numbuffs = min(numbuffs, (int)min(lp->rx_ring_size, lp->tx_ring_size)); - - /* Reset the PCNET32 */ -- lp->a.reset(ioaddr); -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->reset(ioaddr); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ - - /* switch pcnet32 to 32bit mode */ -- lp->a.write_bcr(ioaddr, 20, 2); -+ lp->a->write_bcr(ioaddr, 20, 2); - - /* purge & init rings but don't actually restart */ - pcnet32_restart(dev, 0x0000); - -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ - - /* Initialize Transmit buffers. */ - size = data_len + 15; -@@ -947,10 +947,10 @@ static int pcnet32_loopback_test(struct - - /* set int loopback in CSR15 */ - x = a->read_csr(ioaddr, CSR15) & 0xfffc; -- lp->a.write_csr(ioaddr, CSR15, x | 0x0044); -+ lp->a->write_csr(ioaddr, CSR15, x | 0x0044); - - teststatus = cpu_to_le16(0x8000); -- lp->a.write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_START); /* Set STRT bit */ - - /* Check status of descriptors */ - for (x = 0; x < numbuffs; x++) { -@@ -969,7 +969,7 @@ static int pcnet32_loopback_test(struct - } - } - -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); /* Set STOP bit */ - wmb(); - if (netif_msg_hw(lp) && netif_msg_pktdata(lp)) { - netdev_printk(KERN_DEBUG, dev, "RX loopback packets:\n"); -@@ -1015,7 +1015,7 @@ clean_up: - pcnet32_restart(dev, CSR0_NORMAL); - } else { - pcnet32_purge_rx_ring(dev); -- lp->a.write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ -+ lp->a->write_bcr(ioaddr, 20, 4); /* return to 16bit mode */ - } - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -1026,7 +1026,7 @@ static int pcnet32_set_phys_id(struct ne - enum ethtool_phys_id_state state) - { - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - unsigned long flags; - int i; -@@ -1067,7 +1067,7 @@ static int pcnet32_suspend(struct net_de - { - int csr5; - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - int ticks; - -@@ -1324,8 +1324,8 @@ static int pcnet32_poll(struct napi_stru - spin_lock_irqsave(&lp->lock, flags); - if (pcnet32_tx(dev)) { - /* reset the chip to clear the error condition, then restart */ -- lp->a.reset(ioaddr); -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->reset(ioaddr); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ - pcnet32_restart(dev, CSR0_START); - netif_wake_queue(dev); - } -@@ -1337,12 +1337,12 @@ static int pcnet32_poll(struct napi_stru - __napi_complete(napi); - - /* clear interrupt masks */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val &= 0x00ff; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - - /* Set interrupt enable. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN); - - spin_unlock_irqrestore(&lp->lock, flags); - } -@@ -1365,7 +1365,7 @@ static void pcnet32_get_regs(struct net_ - int i, csr0; - u16 *buff = ptr; - struct pcnet32_private *lp = netdev_priv(dev); -- struct pcnet32_access *a = &lp->a; -+ struct pcnet32_access *a = lp->a; - ulong ioaddr = dev->base_addr; - unsigned long flags; - -@@ -1401,9 +1401,9 @@ static void pcnet32_get_regs(struct net_ - for (j = 0; j < PCNET32_MAX_PHYS; j++) { - if (lp->phymask & (1 << j)) { - for (i = 0; i < PCNET32_REGS_PER_PHY; i++) { -- lp->a.write_bcr(ioaddr, 33, -+ lp->a->write_bcr(ioaddr, 33, - (j << 5) | i); -- *buff++ = lp->a.read_bcr(ioaddr, 34); -+ *buff++ = lp->a->read_bcr(ioaddr, 34); - } - } - } -@@ -1785,7 +1785,7 @@ pcnet32_probe1(unsigned long ioaddr, int - ((cards_found >= MAX_UNITS) || full_duplex[cards_found])) - lp->options |= PCNET32_PORT_FD; - -- lp->a = *a; -+ lp->a = a; - - /* prior to register_netdev, dev->name is not yet correct */ - if (pcnet32_alloc_ring(dev, pci_name(lp->pci_dev))) { -@@ -1844,7 +1844,7 @@ pcnet32_probe1(unsigned long ioaddr, int - if (lp->mii) { - /* lp->phycount and lp->phymask are set to 0 by memset above */ - -- lp->mii_if.phy_id = ((lp->a.read_bcr(ioaddr, 33)) >> 5) & 0x1f; -+ lp->mii_if.phy_id = ((lp->a->read_bcr(ioaddr, 33)) >> 5) & 0x1f; - /* scan for PHYs */ - for (i = 0; i < PCNET32_MAX_PHYS; i++) { - unsigned short id1, id2; -@@ -1864,7 +1864,7 @@ pcnet32_probe1(unsigned long ioaddr, int - pr_info("Found PHY %04x:%04x at address %d\n", - id1, id2, i); - } -- lp->a.write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); -+ lp->a->write_bcr(ioaddr, 33, (lp->mii_if.phy_id) << 5); - if (lp->phycount > 1) - lp->options |= PCNET32_PORT_MII; - } -@@ -2020,10 +2020,10 @@ static int pcnet32_open(struct net_devic - } - - /* Reset the PCNET32 */ -- lp->a.reset(ioaddr); -+ lp->a->reset(ioaddr); - - /* switch pcnet32 to 32bit mode */ -- lp->a.write_bcr(ioaddr, 20, 2); -+ lp->a->write_bcr(ioaddr, 20, 2); - - netif_printk(lp, ifup, KERN_DEBUG, dev, - "%s() irq %d tx/rx rings %#x/%#x init %#x\n", -@@ -2032,14 +2032,14 @@ static int pcnet32_open(struct net_devic - (u32) (lp->init_dma_addr)); - - /* set/reset autoselect bit */ -- val = lp->a.read_bcr(ioaddr, 2) & ~2; -+ val = lp->a->read_bcr(ioaddr, 2) & ~2; - if (lp->options & PCNET32_PORT_ASEL) - val |= 2; -- lp->a.write_bcr(ioaddr, 2, val); -+ lp->a->write_bcr(ioaddr, 2, val); - - /* handle full duplex setting */ - if (lp->mii_if.full_duplex) { -- val = lp->a.read_bcr(ioaddr, 9) & ~3; -+ val = lp->a->read_bcr(ioaddr, 9) & ~3; - if (lp->options & PCNET32_PORT_FD) { - val |= 1; - if (lp->options == (PCNET32_PORT_FD | PCNET32_PORT_AUI)) -@@ -2049,14 +2049,14 @@ static int pcnet32_open(struct net_devic - if (lp->chip_version == 0x2627) - val |= 3; - } -- lp->a.write_bcr(ioaddr, 9, val); -+ lp->a->write_bcr(ioaddr, 9, val); - } - - /* set/reset GPSI bit in test register */ -- val = lp->a.read_csr(ioaddr, 124) & ~0x10; -+ val = lp->a->read_csr(ioaddr, 124) & ~0x10; - if ((lp->options & PCNET32_PORT_PORTSEL) == PCNET32_PORT_GPSI) - val |= 0x10; -- lp->a.write_csr(ioaddr, 124, val); -+ lp->a->write_csr(ioaddr, 124, val); - - /* Allied Telesyn AT 2700/2701 FX are 100Mbit only and do not negotiate */ - if (pdev && pdev->subsystem_vendor == PCI_VENDOR_ID_AT && -@@ -2075,24 +2075,24 @@ static int pcnet32_open(struct net_devic - * duplex, and/or enable auto negotiation, and clear DANAS - */ - if (lp->mii && !(lp->options & PCNET32_PORT_ASEL)) { -- lp->a.write_bcr(ioaddr, 32, -- lp->a.read_bcr(ioaddr, 32) | 0x0080); -+ lp->a->write_bcr(ioaddr, 32, -+ lp->a->read_bcr(ioaddr, 32) | 0x0080); - /* disable Auto Negotiation, set 10Mpbs, HD */ -- val = lp->a.read_bcr(ioaddr, 32) & ~0xb8; -+ val = lp->a->read_bcr(ioaddr, 32) & ~0xb8; - if (lp->options & PCNET32_PORT_FD) - val |= 0x10; - if (lp->options & PCNET32_PORT_100) - val |= 0x08; -- lp->a.write_bcr(ioaddr, 32, val); -+ lp->a->write_bcr(ioaddr, 32, val); - } else { - if (lp->options & PCNET32_PORT_ASEL) { -- lp->a.write_bcr(ioaddr, 32, -- lp->a.read_bcr(ioaddr, -+ lp->a->write_bcr(ioaddr, 32, -+ lp->a->read_bcr(ioaddr, - 32) | 0x0080); - /* enable auto negotiate, setup, disable fd */ -- val = lp->a.read_bcr(ioaddr, 32) & ~0x98; -+ val = lp->a->read_bcr(ioaddr, 32) & ~0x98; - val |= 0x20; -- lp->a.write_bcr(ioaddr, 32, val); -+ lp->a->write_bcr(ioaddr, 32, val); - } - } - } else { -@@ -2105,10 +2105,10 @@ static int pcnet32_open(struct net_devic - * There is really no good other way to handle multiple PHYs - * other than turning off all automatics - */ -- val = lp->a.read_bcr(ioaddr, 2); -- lp->a.write_bcr(ioaddr, 2, val & ~2); -- val = lp->a.read_bcr(ioaddr, 32); -- lp->a.write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ -+ val = lp->a->read_bcr(ioaddr, 2); -+ lp->a->write_bcr(ioaddr, 2, val & ~2); -+ val = lp->a->read_bcr(ioaddr, 32); -+ lp->a->write_bcr(ioaddr, 32, val & ~(1 << 7)); /* stop MII manager */ - - if (!(lp->options & PCNET32_PORT_ASEL)) { - /* setup ecmd */ -@@ -2118,7 +2118,7 @@ static int pcnet32_open(struct net_devic - ethtool_cmd_speed_set(&ecmd, - (lp->options & PCNET32_PORT_100) ? - SPEED_100 : SPEED_10); -- bcr9 = lp->a.read_bcr(ioaddr, 9); -+ bcr9 = lp->a->read_bcr(ioaddr, 9); - - if (lp->options & PCNET32_PORT_FD) { - ecmd.duplex = DUPLEX_FULL; -@@ -2127,7 +2127,7 @@ static int pcnet32_open(struct net_devic - ecmd.duplex = DUPLEX_HALF; - bcr9 |= ~(1 << 0); - } -- lp->a.write_bcr(ioaddr, 9, bcr9); -+ lp->a->write_bcr(ioaddr, 9, bcr9); - } - - for (i = 0; i < PCNET32_MAX_PHYS; i++) { -@@ -2158,9 +2158,9 @@ static int pcnet32_open(struct net_devic - - #ifdef DO_DXSUFLO - if (lp->dxsuflo) { /* Disable transmit stop on underflow */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val |= 0x40; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - } - #endif - -@@ -2176,11 +2176,11 @@ static int pcnet32_open(struct net_devic - napi_enable(&lp->napi); - - /* Re-initialize the PCNET32, and start it when done. */ -- lp->a.write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); -- lp->a.write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); -+ lp->a->write_csr(ioaddr, 1, (lp->init_dma_addr & 0xffff)); -+ lp->a->write_csr(ioaddr, 2, (lp->init_dma_addr >> 16)); - -- lp->a.write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); -+ lp->a->write_csr(ioaddr, CSR4, 0x0915); /* auto tx pad */ -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); - - netif_start_queue(dev); - -@@ -2192,19 +2192,19 @@ static int pcnet32_open(struct net_devic - - i = 0; - while (i++ < 100) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) - break; - /* - * We used to clear the InitDone bit, 0x0100, here but Mark Stockton - * reports that doing so triggers a bug in the '974. - */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_NORMAL); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_NORMAL); - - netif_printk(lp, ifup, KERN_DEBUG, dev, - "pcnet32 open after %d ticks, init block %#x csr0 %4.4x\n", - i, - (u32) (lp->init_dma_addr), -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -2218,7 +2218,7 @@ err_free_ring: - * Switch back to 16bit mode to avoid problems with dumb - * DOS packet driver after a warm reboot - */ -- lp->a.write_bcr(ioaddr, 20, 4); -+ lp->a->write_bcr(ioaddr, 20, 4); - - err_free_irq: - spin_unlock_irqrestore(&lp->lock, flags); -@@ -2323,7 +2323,7 @@ static void pcnet32_restart(struct net_d - - /* wait for stop */ - for (i = 0; i < 100; i++) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_STOP) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_STOP) - break; - - if (i >= 100) -@@ -2335,13 +2335,13 @@ static void pcnet32_restart(struct net_d - return; - - /* ReInit Ring */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INIT); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INIT); - i = 0; - while (i++ < 1000) -- if (lp->a.read_csr(ioaddr, CSR0) & CSR0_IDON) -+ if (lp->a->read_csr(ioaddr, CSR0) & CSR0_IDON) - break; - -- lp->a.write_csr(ioaddr, CSR0, csr0_bits); -+ lp->a->write_csr(ioaddr, CSR0, csr0_bits); - } - - static void pcnet32_tx_timeout(struct net_device *dev) -@@ -2353,8 +2353,8 @@ static void pcnet32_tx_timeout(struct ne - /* Transmitter timeout, serious problems. */ - if (pcnet32_debug & NETIF_MSG_DRV) - pr_err("%s: transmit timed out, status %4.4x, resetting\n", -- dev->name, lp->a.read_csr(ioaddr, CSR0)); -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ dev->name, lp->a->read_csr(ioaddr, CSR0)); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - dev->stats.tx_errors++; - if (netif_msg_tx_err(lp)) { - int i; -@@ -2397,7 +2397,7 @@ static netdev_tx_t pcnet32_start_xmit(st - - netif_printk(lp, tx_queued, KERN_DEBUG, dev, - "%s() called, csr0 %4.4x\n", -- __func__, lp->a.read_csr(ioaddr, CSR0)); -+ __func__, lp->a->read_csr(ioaddr, CSR0)); - - /* Default status -- will not enable Successful-TxDone - * interrupt when that option is available to us. -@@ -2427,7 +2427,7 @@ static netdev_tx_t pcnet32_start_xmit(st - dev->stats.tx_bytes += skb->len; - - /* Trigger an immediate send poll. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_INTEN | CSR0_TXPOLL); - - if (lp->tx_ring[(entry + 1) & lp->tx_mod_mask].base != 0) { - lp->tx_full = 1; -@@ -2452,16 +2452,16 @@ pcnet32_interrupt(int irq, void *dev_id) - - spin_lock(&lp->lock); - -- csr0 = lp->a.read_csr(ioaddr, CSR0); -+ csr0 = lp->a->read_csr(ioaddr, CSR0); - while ((csr0 & 0x8f00) && --boguscnt >= 0) { - if (csr0 == 0xffff) - break; /* PCMCIA remove happened */ - /* Acknowledge all of the current interrupt sources ASAP. */ -- lp->a.write_csr(ioaddr, CSR0, csr0 & ~0x004f); -+ lp->a->write_csr(ioaddr, CSR0, csr0 & ~0x004f); - - netif_printk(lp, intr, KERN_DEBUG, dev, - "interrupt csr0=%#2.2x new csr=%#2.2x\n", -- csr0, lp->a.read_csr(ioaddr, CSR0)); -+ csr0, lp->a->read_csr(ioaddr, CSR0)); - - /* Log misc errors. */ - if (csr0 & 0x4000) -@@ -2488,19 +2488,19 @@ pcnet32_interrupt(int irq, void *dev_id) - if (napi_schedule_prep(&lp->napi)) { - u16 val; - /* set interrupt masks */ -- val = lp->a.read_csr(ioaddr, CSR3); -+ val = lp->a->read_csr(ioaddr, CSR3); - val |= 0x5f00; -- lp->a.write_csr(ioaddr, CSR3, val); -+ lp->a->write_csr(ioaddr, CSR3, val); - - __napi_schedule(&lp->napi); - break; - } -- csr0 = lp->a.read_csr(ioaddr, CSR0); -+ csr0 = lp->a->read_csr(ioaddr, CSR0); - } - - netif_printk(lp, intr, KERN_DEBUG, dev, - "exiting interrupt, csr0=%#4.4x\n", -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - spin_unlock(&lp->lock); - -@@ -2520,20 +2520,20 @@ static int pcnet32_close(struct net_devi - - spin_lock_irqsave(&lp->lock, flags); - -- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); -+ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); - - netif_printk(lp, ifdown, KERN_DEBUG, dev, - "Shutting down ethercard, status was %2.2x\n", -- lp->a.read_csr(ioaddr, CSR0)); -+ lp->a->read_csr(ioaddr, CSR0)); - - /* We stop the PCNET32 here -- it occasionally polls memory if we don't. */ -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - - /* - * Switch back to 16bit mode to avoid problems with dumb - * DOS packet driver after a warm reboot - */ -- lp->a.write_bcr(ioaddr, 20, 4); -+ lp->a->write_bcr(ioaddr, 20, 4); - - spin_unlock_irqrestore(&lp->lock, flags); - -@@ -2556,7 +2556,7 @@ static struct net_device_stats *pcnet32_ - unsigned long flags; - - spin_lock_irqsave(&lp->lock, flags); -- dev->stats.rx_missed_errors = lp->a.read_csr(ioaddr, 112); -+ dev->stats.rx_missed_errors = lp->a->read_csr(ioaddr, 112); - spin_unlock_irqrestore(&lp->lock, flags); - - return &dev->stats; -@@ -2578,10 +2578,10 @@ static void pcnet32_load_multicast(struc - if (dev->flags & IFF_ALLMULTI) { - ib->filter[0] = cpu_to_le32(~0U); - ib->filter[1] = cpu_to_le32(~0U); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+1, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+2, 0xffff); -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER+3, 0xffff); - return; - } - /* clear the multicast filter */ -@@ -2601,7 +2601,7 @@ static void pcnet32_load_multicast(struc - mcast_table[crc >> 4] |= cpu_to_le16(1 << (crc & 0xf)); - } - for (i = 0; i < 4; i++) -- lp->a.write_csr(ioaddr, PCNET32_MC_FILTER + i, -+ lp->a->write_csr(ioaddr, PCNET32_MC_FILTER + i, - le16_to_cpu(mcast_table[i])); - } - -@@ -2616,28 +2616,28 @@ static void pcnet32_set_multicast_list(s - - spin_lock_irqsave(&lp->lock, flags); - suspended = pcnet32_suspend(dev, &flags, 0); -- csr15 = lp->a.read_csr(ioaddr, CSR15); -+ csr15 = lp->a->read_csr(ioaddr, CSR15); - if (dev->flags & IFF_PROMISC) { - /* Log any net taps. */ - netif_info(lp, hw, dev, "Promiscuous mode enabled\n"); - lp->init_block->mode = - cpu_to_le16(0x8000 | (lp->options & PCNET32_PORT_PORTSEL) << - 7); -- lp->a.write_csr(ioaddr, CSR15, csr15 | 0x8000); -+ lp->a->write_csr(ioaddr, CSR15, csr15 | 0x8000); - } else { - lp->init_block->mode = - cpu_to_le16((lp->options & PCNET32_PORT_PORTSEL) << 7); -- lp->a.write_csr(ioaddr, CSR15, csr15 & 0x7fff); -+ lp->a->write_csr(ioaddr, CSR15, csr15 & 0x7fff); - pcnet32_load_multicast(dev); - } - - if (suspended) { - int csr5; - /* clear SUSPEND (SPND) - CSR5 bit 0 */ -- csr5 = lp->a.read_csr(ioaddr, CSR5); -- lp->a.write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); -+ csr5 = lp->a->read_csr(ioaddr, CSR5); -+ lp->a->write_csr(ioaddr, CSR5, csr5 & (~CSR5_SUSPEND)); - } else { -- lp->a.write_csr(ioaddr, CSR0, CSR0_STOP); -+ lp->a->write_csr(ioaddr, CSR0, CSR0_STOP); - pcnet32_restart(dev, CSR0_NORMAL); - netif_wake_queue(dev); - } -@@ -2655,8 +2655,8 @@ static int mdio_read(struct net_device * - if (!lp->mii) - return 0; - -- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -- val_out = lp->a.read_bcr(ioaddr, 34); -+ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -+ val_out = lp->a->read_bcr(ioaddr, 34); - - return val_out; - } -@@ -2670,8 +2670,8 @@ static void mdio_write(struct net_device - if (!lp->mii) - return; - -- lp->a.write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -- lp->a.write_bcr(ioaddr, 34, val); -+ lp->a->write_bcr(ioaddr, 33, ((phy_id & 0x1f) << 5) | (reg_num & 0x1f)); -+ lp->a->write_bcr(ioaddr, 34, val); - } - - static int pcnet32_ioctl(struct net_device *dev, struct ifreq *rq, int cmd) -@@ -2748,7 +2748,7 @@ static void pcnet32_check_media(struct n - curr_link = mii_link_ok(&lp->mii_if); - } else { - ulong ioaddr = dev->base_addr; /* card base I/O address */ -- curr_link = (lp->a.read_bcr(ioaddr, 4) != 0xc0); -+ curr_link = (lp->a->read_bcr(ioaddr, 4) != 0xc0); - } - if (!curr_link) { - if (prev_link || verbose) { -@@ -2771,13 +2771,13 @@ static void pcnet32_check_media(struct n - (ecmd.duplex == DUPLEX_FULL) - ? "full" : "half"); - } -- bcr9 = lp->a.read_bcr(dev->base_addr, 9); -+ bcr9 = lp->a->read_bcr(dev->base_addr, 9); - if ((bcr9 & (1 << 0)) != lp->mii_if.full_duplex) { - if (lp->mii_if.full_duplex) - bcr9 |= (1 << 0); - else - bcr9 &= ~(1 << 0); -- lp->a.write_bcr(dev->base_addr, 9, bcr9); -+ lp->a->write_bcr(dev->base_addr, 9, bcr9); - } - } else { - netif_info(lp, link, dev, "link up\n"); -diff -urNp linux-3.0.4/drivers/net/ppp_generic.c linux-3.0.4/drivers/net/ppp_generic.c ---- linux-3.0.4/drivers/net/ppp_generic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/ppp_generic.c 2011-08-23 21:47:55.000000000 -0400 -@@ -987,7 +987,6 @@ ppp_net_ioctl(struct net_device *dev, st - void __user *addr = (void __user *) ifr->ifr_ifru.ifru_data; - struct ppp_stats stats; - struct ppp_comp_stats cstats; -- char *vers; - - switch (cmd) { - case SIOCGPPPSTATS: -@@ -1009,8 +1008,7 @@ ppp_net_ioctl(struct net_device *dev, st - break; - - case SIOCGPPPVER: -- vers = PPP_VERSION; -- if (copy_to_user(addr, vers, strlen(vers) + 1)) -+ if (copy_to_user(addr, PPP_VERSION, sizeof(PPP_VERSION))) - break; - err = 0; - break; -diff -urNp linux-3.0.4/drivers/net/r8169.c linux-3.0.4/drivers/net/r8169.c ---- linux-3.0.4/drivers/net/r8169.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/net/r8169.c 2011-08-23 21:47:55.000000000 -0400 -@@ -645,12 +645,12 @@ struct rtl8169_private { - struct mdio_ops { - void (*write)(void __iomem *, int, int); - int (*read)(void __iomem *, int); -- } mdio_ops; -+ } __no_const mdio_ops; - - struct pll_power_ops { - void (*down)(struct rtl8169_private *); - void (*up)(struct rtl8169_private *); -- } pll_power_ops; -+ } __no_const pll_power_ops; - - int (*set_speed)(struct net_device *, u8 aneg, u16 sp, u8 dpx, u32 adv); - int (*get_settings)(struct net_device *, struct ethtool_cmd *); -diff -urNp linux-3.0.4/drivers/net/tg3.h linux-3.0.4/drivers/net/tg3.h ---- linux-3.0.4/drivers/net/tg3.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tg3.h 2011-08-23 21:47:55.000000000 -0400 -@@ -134,6 +134,7 @@ - #define CHIPREV_ID_5750_A0 0x4000 - #define CHIPREV_ID_5750_A1 0x4001 - #define CHIPREV_ID_5750_A3 0x4003 -+#define CHIPREV_ID_5750_C1 0x4201 - #define CHIPREV_ID_5750_C2 0x4202 - #define CHIPREV_ID_5752_A0_HW 0x5000 - #define CHIPREV_ID_5752_A0 0x6000 -diff -urNp linux-3.0.4/drivers/net/tokenring/abyss.c linux-3.0.4/drivers/net/tokenring/abyss.c ---- linux-3.0.4/drivers/net/tokenring/abyss.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/abyss.c 2011-08-23 21:47:55.000000000 -0400 -@@ -451,10 +451,12 @@ static struct pci_driver abyss_driver = - - static int __init abyss_init (void) - { -- abyss_netdev_ops = tms380tr_netdev_ops; -+ pax_open_kernel(); -+ memcpy((void *)&abyss_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); - -- abyss_netdev_ops.ndo_open = abyss_open; -- abyss_netdev_ops.ndo_stop = abyss_close; -+ *(void **)&abyss_netdev_ops.ndo_open = abyss_open; -+ *(void **)&abyss_netdev_ops.ndo_stop = abyss_close; -+ pax_close_kernel(); - - return pci_register_driver(&abyss_driver); - } -diff -urNp linux-3.0.4/drivers/net/tokenring/madgemc.c linux-3.0.4/drivers/net/tokenring/madgemc.c ---- linux-3.0.4/drivers/net/tokenring/madgemc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/madgemc.c 2011-08-23 21:47:55.000000000 -0400 -@@ -744,9 +744,11 @@ static struct mca_driver madgemc_driver - - static int __init madgemc_init (void) - { -- madgemc_netdev_ops = tms380tr_netdev_ops; -- madgemc_netdev_ops.ndo_open = madgemc_open; -- madgemc_netdev_ops.ndo_stop = madgemc_close; -+ pax_open_kernel(); -+ memcpy((void *)&madgemc_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&madgemc_netdev_ops.ndo_open = madgemc_open; -+ *(void **)&madgemc_netdev_ops.ndo_stop = madgemc_close; -+ pax_close_kernel(); - - return mca_register_driver (&madgemc_driver); - } -diff -urNp linux-3.0.4/drivers/net/tokenring/proteon.c linux-3.0.4/drivers/net/tokenring/proteon.c ---- linux-3.0.4/drivers/net/tokenring/proteon.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/proteon.c 2011-08-23 21:47:55.000000000 -0400 -@@ -353,9 +353,11 @@ static int __init proteon_init(void) - struct platform_device *pdev; - int i, num = 0, err = 0; - -- proteon_netdev_ops = tms380tr_netdev_ops; -- proteon_netdev_ops.ndo_open = proteon_open; -- proteon_netdev_ops.ndo_stop = tms380tr_close; -+ pax_open_kernel(); -+ memcpy((void *)&proteon_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&proteon_netdev_ops.ndo_open = proteon_open; -+ *(void **)&proteon_netdev_ops.ndo_stop = tms380tr_close; -+ pax_close_kernel(); - - err = platform_driver_register(&proteon_driver); - if (err) -diff -urNp linux-3.0.4/drivers/net/tokenring/skisa.c linux-3.0.4/drivers/net/tokenring/skisa.c ---- linux-3.0.4/drivers/net/tokenring/skisa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tokenring/skisa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -363,9 +363,11 @@ static int __init sk_isa_init(void) - struct platform_device *pdev; - int i, num = 0, err = 0; - -- sk_isa_netdev_ops = tms380tr_netdev_ops; -- sk_isa_netdev_ops.ndo_open = sk_isa_open; -- sk_isa_netdev_ops.ndo_stop = tms380tr_close; -+ pax_open_kernel(); -+ memcpy((void *)&sk_isa_netdev_ops, &tms380tr_netdev_ops, sizeof(tms380tr_netdev_ops)); -+ *(void **)&sk_isa_netdev_ops.ndo_open = sk_isa_open; -+ *(void **)&sk_isa_netdev_ops.ndo_stop = tms380tr_close; -+ pax_close_kernel(); - - err = platform_driver_register(&sk_isa_driver); - if (err) -diff -urNp linux-3.0.4/drivers/net/tulip/de2104x.c linux-3.0.4/drivers/net/tulip/de2104x.c ---- linux-3.0.4/drivers/net/tulip/de2104x.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tulip/de2104x.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1794,6 +1794,8 @@ static void __devinit de21041_get_srom_i - struct de_srom_info_leaf *il; - void *bufp; - -+ pax_track_stack(); -+ - /* download entire eeprom */ - for (i = 0; i < DE_EEPROM_WORDS; i++) - ((__le16 *)ee_data)[i] = -diff -urNp linux-3.0.4/drivers/net/tulip/de4x5.c linux-3.0.4/drivers/net/tulip/de4x5.c ---- linux-3.0.4/drivers/net/tulip/de4x5.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/tulip/de4x5.c 2011-08-23 21:47:55.000000000 -0400 -@@ -5401,7 +5401,7 @@ de4x5_ioctl(struct net_device *dev, stru - for (i=0; idev_addr[i]; - } -- if (copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; -+ if (ioc->len > sizeof tmp.addr || copy_to_user(ioc->data, tmp.addr, ioc->len)) return -EFAULT; - break; - - case DE4X5_SET_HWADDR: /* Set the hardware address */ -@@ -5441,7 +5441,7 @@ de4x5_ioctl(struct net_device *dev, stru - spin_lock_irqsave(&lp->lock, flags); - memcpy(&statbuf, &lp->pktStats, ioc->len); - spin_unlock_irqrestore(&lp->lock, flags); -- if (copy_to_user(ioc->data, &statbuf, ioc->len)) -+ if (ioc->len > sizeof statbuf || copy_to_user(ioc->data, &statbuf, ioc->len)) - return -EFAULT; - break; - } -diff -urNp linux-3.0.4/drivers/net/usb/hso.c linux-3.0.4/drivers/net/usb/hso.c ---- linux-3.0.4/drivers/net/usb/hso.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/usb/hso.c 2011-08-23 21:47:55.000000000 -0400 -@@ -71,7 +71,7 @@ - #include - #include - #include -- -+#include - - #define MOD_AUTHOR "Option Wireless" - #define MOD_DESCRIPTION "USB High Speed Option driver" -@@ -257,7 +257,7 @@ struct hso_serial { - - /* from usb_serial_port */ - struct tty_struct *tty; -- int open_count; -+ local_t open_count; - spinlock_t serial_lock; - - int (*write_data) (struct hso_serial *serial); -@@ -1190,7 +1190,7 @@ static void put_rxbuf_data_and_resubmit_ - struct urb *urb; - - urb = serial->rx_urb[0]; -- if (serial->open_count > 0) { -+ if (local_read(&serial->open_count) > 0) { - count = put_rxbuf_data(urb, serial); - if (count == -1) - return; -@@ -1226,7 +1226,7 @@ static void hso_std_serial_read_bulk_cal - DUMP1(urb->transfer_buffer, urb->actual_length); - - /* Anyone listening? */ -- if (serial->open_count == 0) -+ if (local_read(&serial->open_count) == 0) - return; - - if (status == 0) { -@@ -1311,8 +1311,7 @@ static int hso_serial_open(struct tty_st - spin_unlock_irq(&serial->serial_lock); - - /* check for port already opened, if not set the termios */ -- serial->open_count++; -- if (serial->open_count == 1) { -+ if (local_inc_return(&serial->open_count) == 1) { - serial->rx_state = RX_IDLE; - /* Force default termio settings */ - _hso_serial_set_termios(tty, NULL); -@@ -1324,7 +1323,7 @@ static int hso_serial_open(struct tty_st - result = hso_start_serial_device(serial->parent, GFP_KERNEL); - if (result) { - hso_stop_serial_device(serial->parent); -- serial->open_count--; -+ local_dec(&serial->open_count); - kref_put(&serial->parent->ref, hso_serial_ref_free); - } - } else { -@@ -1361,10 +1360,10 @@ static void hso_serial_close(struct tty_ - - /* reset the rts and dtr */ - /* do the actual close */ -- serial->open_count--; -+ local_dec(&serial->open_count); - -- if (serial->open_count <= 0) { -- serial->open_count = 0; -+ if (local_read(&serial->open_count) <= 0) { -+ local_set(&serial->open_count, 0); - spin_lock_irq(&serial->serial_lock); - if (serial->tty == tty) { - serial->tty->driver_data = NULL; -@@ -1446,7 +1445,7 @@ static void hso_serial_set_termios(struc - - /* the actual setup */ - spin_lock_irqsave(&serial->serial_lock, flags); -- if (serial->open_count) -+ if (local_read(&serial->open_count)) - _hso_serial_set_termios(tty, old); - else - tty->termios = old; -@@ -1905,7 +1904,7 @@ static void intr_callback(struct urb *ur - D1("Pending read interrupt on port %d\n", i); - spin_lock(&serial->serial_lock); - if (serial->rx_state == RX_IDLE && -- serial->open_count > 0) { -+ local_read(&serial->open_count) > 0) { - /* Setup and send a ctrl req read on - * port i */ - if (!serial->rx_urb_filled[0]) { -@@ -3098,7 +3097,7 @@ static int hso_resume(struct usb_interfa - /* Start all serial ports */ - for (i = 0; i < HSO_SERIAL_TTY_MINORS; i++) { - if (serial_table[i] && (serial_table[i]->interface == iface)) { -- if (dev2ser(serial_table[i])->open_count) { -+ if (local_read(&dev2ser(serial_table[i])->open_count)) { - result = - hso_start_serial_device(serial_table[i], GFP_NOIO); - hso_kick_transmit(dev2ser(serial_table[i])); -diff -urNp linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c ---- linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vmxnet3/vmxnet3_ethtool.c 2011-08-23 21:47:55.000000000 -0400 -@@ -594,8 +594,7 @@ vmxnet3_set_rss_indir(struct net_device - * Return with error code if any of the queue indices - * is out of range - */ -- if (p->ring_index[i] < 0 || -- p->ring_index[i] >= adapter->num_rx_queues) -+ if (p->ring_index[i] >= adapter->num_rx_queues) - return -EINVAL; - } - -diff -urNp linux-3.0.4/drivers/net/vxge/vxge-config.h linux-3.0.4/drivers/net/vxge/vxge-config.h ---- linux-3.0.4/drivers/net/vxge/vxge-config.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-config.h 2011-08-23 21:47:55.000000000 -0400 -@@ -512,7 +512,7 @@ struct vxge_hw_uld_cbs { - void (*link_down)(struct __vxge_hw_device *devh); - void (*crit_err)(struct __vxge_hw_device *devh, - enum vxge_hw_event type, u64 ext_data); --}; -+} __no_const; - - /* - * struct __vxge_hw_blockpool_entry - Block private data structure -diff -urNp linux-3.0.4/drivers/net/vxge/vxge-main.c linux-3.0.4/drivers/net/vxge/vxge-main.c ---- linux-3.0.4/drivers/net/vxge/vxge-main.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-main.c 2011-08-23 21:48:14.000000000 -0400 -@@ -98,6 +98,8 @@ static inline void VXGE_COMPLETE_VPATH_T - struct sk_buff *completed[NR_SKB_COMPLETED]; - int more; - -+ pax_track_stack(); -+ - do { - more = 0; - skb_ptr = completed; -@@ -1920,6 +1922,8 @@ static enum vxge_hw_status vxge_rth_conf - u8 mtable[256] = {0}; /* CPU to vpath mapping */ - int index; - -+ pax_track_stack(); -+ - /* - * Filling - * - itable with bucket numbers -diff -urNp linux-3.0.4/drivers/net/vxge/vxge-traffic.h linux-3.0.4/drivers/net/vxge/vxge-traffic.h ---- linux-3.0.4/drivers/net/vxge/vxge-traffic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/vxge/vxge-traffic.h 2011-08-23 21:47:55.000000000 -0400 -@@ -2088,7 +2088,7 @@ struct vxge_hw_mempool_cbs { - struct vxge_hw_mempool_dma *dma_object, - u32 index, - u32 is_last); --}; -+} __no_const; - - #define VXGE_HW_VIRTUAL_PATH_HANDLE(vpath) \ - ((struct __vxge_hw_vpath_handle *)(vpath)->vpath_handles.next) -diff -urNp linux-3.0.4/drivers/net/wan/cycx_x25.c linux-3.0.4/drivers/net/wan/cycx_x25.c ---- linux-3.0.4/drivers/net/wan/cycx_x25.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wan/cycx_x25.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1018,6 +1018,8 @@ static void hex_dump(char *msg, unsigned - unsigned char hex[1024], - * phex = hex; - -+ pax_track_stack(); -+ - if (len >= (sizeof(hex) / 2)) - len = (sizeof(hex) / 2) - 1; - -diff -urNp linux-3.0.4/drivers/net/wan/hdlc_x25.c linux-3.0.4/drivers/net/wan/hdlc_x25.c ---- linux-3.0.4/drivers/net/wan/hdlc_x25.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wan/hdlc_x25.c 2011-08-23 21:47:55.000000000 -0400 -@@ -136,16 +136,16 @@ static netdev_tx_t x25_xmit(struct sk_bu - - static int x25_open(struct net_device *dev) - { -- struct lapb_register_struct cb; -+ static struct lapb_register_struct cb = { -+ .connect_confirmation = x25_connected, -+ .connect_indication = x25_connected, -+ .disconnect_confirmation = x25_disconnected, -+ .disconnect_indication = x25_disconnected, -+ .data_indication = x25_data_indication, -+ .data_transmit = x25_data_transmit -+ }; - int result; - -- cb.connect_confirmation = x25_connected; -- cb.connect_indication = x25_connected; -- cb.disconnect_confirmation = x25_disconnected; -- cb.disconnect_indication = x25_disconnected; -- cb.data_indication = x25_data_indication; -- cb.data_transmit = x25_data_transmit; -- - result = lapb_register(dev, &cb); - if (result != LAPB_OK) - return result; -diff -urNp linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c ---- linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wimax/i2400m/usb-fw.c 2011-08-23 21:48:14.000000000 -0400 -@@ -287,6 +287,8 @@ ssize_t i2400mu_bus_bm_wait_for_ack(stru - int do_autopm = 1; - DECLARE_COMPLETION_ONSTACK(notif_completion); - -+ pax_track_stack(); -+ - d_fnstart(8, dev, "(i2400m %p ack %p size %zu)\n", - i2400m, ack, ack_size); - BUG_ON(_ack == i2400m->bm_ack_buf); -diff -urNp linux-3.0.4/drivers/net/wireless/airo.c linux-3.0.4/drivers/net/wireless/airo.c ---- linux-3.0.4/drivers/net/wireless/airo.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/airo.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3003,6 +3003,8 @@ static void airo_process_scan_results (s - BSSListElement * loop_net; - BSSListElement * tmp_net; - -+ pax_track_stack(); -+ - /* Blow away current list of scan results */ - list_for_each_entry_safe (loop_net, tmp_net, &ai->network_list, list) { - list_move_tail (&loop_net->list, &ai->network_free_list); -@@ -3794,6 +3796,8 @@ static u16 setup_card(struct airo_info * - WepKeyRid wkr; - int rc; - -+ pax_track_stack(); -+ - memset( &mySsid, 0, sizeof( mySsid ) ); - kfree (ai->flash); - ai->flash = NULL; -@@ -4753,6 +4757,8 @@ static int proc_stats_rid_open( struct i - __le32 *vals = stats.vals; - int len; - -+ pax_track_stack(); -+ - if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) - return -ENOMEM; - data = file->private_data; -@@ -5476,6 +5482,8 @@ static int proc_BSSList_open( struct ino - /* If doLoseSync is not 1, we won't do a Lose Sync */ - int doLoseSync = -1; - -+ pax_track_stack(); -+ - if ((file->private_data = kzalloc(sizeof(struct proc_data ), GFP_KERNEL)) == NULL) - return -ENOMEM; - data = file->private_data; -@@ -7181,6 +7189,8 @@ static int airo_get_aplist(struct net_de - int i; - int loseSync = capable(CAP_NET_ADMIN) ? 1: -1; - -+ pax_track_stack(); -+ - qual = kmalloc(IW_MAX_AP * sizeof(*qual), GFP_KERNEL); - if (!qual) - return -ENOMEM; -@@ -7741,6 +7751,8 @@ static void airo_read_wireless_stats(str - CapabilityRid cap_rid; - __le32 *vals = stats_rid.vals; - -+ pax_track_stack(); -+ - /* Get stats out of the card */ - clear_bit(JOB_WSTATS, &local->jobs); - if (local->power.event) { -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath5k/debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -204,6 +204,8 @@ static ssize_t read_file_beacon(struct f - unsigned int v; - u64 tsf; - -+ pax_track_stack(); -+ - v = ath5k_hw_reg_read(sc->ah, AR5K_BEACON); - len += snprintf(buf+len, sizeof(buf)-len, - "%-24s0x%08x\tintval: %d\tTIM: 0x%x\n", -@@ -323,6 +325,8 @@ static ssize_t read_file_debug(struct fi - unsigned int len = 0; - unsigned int i; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "DEBUG LEVEL: 0x%08x\n\n", sc->debug.level); - -@@ -384,6 +388,8 @@ static ssize_t read_file_antenna(struct - unsigned int i; - unsigned int v; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, "antenna mode\t%d\n", - sc->ah->ah_ant_mode); - len += snprintf(buf+len, sizeof(buf)-len, "default antenna\t%d\n", -@@ -494,6 +500,8 @@ static ssize_t read_file_misc(struct fil - unsigned int len = 0; - u32 filt = ath5k_hw_get_rx_filter(sc->ah); - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, "bssid-mask: %pM\n", - sc->bssidmask); - len += snprintf(buf+len, sizeof(buf)-len, "filter-flags: 0x%x ", -@@ -550,6 +558,8 @@ static ssize_t read_file_frameerrors(str - unsigned int len = 0; - int i; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "RX\n---------------------\n"); - len += snprintf(buf+len, sizeof(buf)-len, "CRC\t%u\t(%u%%)\n", -@@ -667,6 +677,8 @@ static ssize_t read_file_ani(struct file - char buf[700]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "HW has PHY error counters:\t%s\n", - sc->ah->ah_capabilities.cap_has_phyerr_counters ? -@@ -827,6 +839,8 @@ static ssize_t read_file_queue(struct fi - struct ath5k_buf *bf, *bf0; - int i, n; - -+ pax_track_stack(); -+ - len += snprintf(buf+len, sizeof(buf)-len, - "available txbuffers: %d\n", sc->txbuf_len); - -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_calib.c 2011-08-23 21:48:14.000000000 -0400 -@@ -757,6 +757,8 @@ static void ar9003_hw_tx_iq_cal_post_pro - int i, im, j; - int nmeasurement; - -+ pax_track_stack(); -+ - for (i = 0; i < AR9300_MAX_CHAINS; i++) { - if (ah->txchainmask & (1 << i)) - num_chains++; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/ar9003_paprd.c 2011-08-23 21:48:14.000000000 -0400 -@@ -356,6 +356,8 @@ static bool create_pa_curve(u32 *data_L, - int theta_low_bin = 0; - int i; - -+ pax_track_stack(); -+ - /* disregard any bin that contains <= 16 samples */ - thresh_accum_cnt = 16; - scale_factor = 5; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -337,6 +337,8 @@ static ssize_t read_file_interrupt(struc - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) { - len += snprintf(buf + len, sizeof(buf) - len, - "%8s: %10u\n", "RXLP", sc->debug.stats.istats.rxlp); -@@ -427,6 +429,8 @@ static ssize_t read_file_wiphy(struct fi - u8 addr[ETH_ALEN]; - u32 tmp; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, - "%s (chan=%d center-freq: %d MHz channel-type: %d (%s))\n", - wiphy_name(sc->hw->wiphy), -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/htc_drv_debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -31,6 +31,8 @@ static ssize_t read_file_tgt_int_stats(s - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -89,6 +91,8 @@ static ssize_t read_file_tgt_tx_stats(st - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -159,6 +163,8 @@ static ssize_t read_file_tgt_rx_stats(st - unsigned int len = 0; - int ret = 0; - -+ pax_track_stack(); -+ - memset(&cmd_rsp, 0, sizeof(cmd_rsp)); - - ath9k_htc_ps_wakeup(priv); -@@ -203,6 +209,8 @@ static ssize_t read_file_xmit(struct fil - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, - "%20s : %10u\n", "Buffers queued", - priv->debug.tx_stats.buf_queued); -@@ -376,6 +384,8 @@ static ssize_t read_file_slot(struct fil - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - spin_lock_bh(&priv->tx.tx_lock); - - len += snprintf(buf + len, sizeof(buf) - len, "TX slot bitmap : "); -@@ -411,6 +421,8 @@ static ssize_t read_file_queue(struct fi - char buf[512]; - unsigned int len = 0; - -+ pax_track_stack(); -+ - len += snprintf(buf + len, sizeof(buf) - len, "%20s : %10u\n", - "Mgmt endpoint", skb_queue_len(&priv->tx.mgmt_ep_queue)); - -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h ---- linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath9k/hw.h 2011-08-23 21:47:55.000000000 -0400 -@@ -585,7 +585,7 @@ struct ath_hw_private_ops { - - /* ANI */ - void (*ani_cache_ini_regs)(struct ath_hw *ah); --}; -+} __no_const; - - /** - * struct ath_hw_ops - callbacks used by hardware code and driver code -@@ -637,7 +637,7 @@ struct ath_hw_ops { - void (*antdiv_comb_conf_set)(struct ath_hw *ah, - struct ath_hw_antcomb_conf *antconf); - --}; -+} __no_const; - - struct ath_nf_limits { - s16 max; -@@ -650,7 +650,7 @@ struct ath_nf_limits { - #define AH_UNPLUGGED 0x2 /* The card has been physically removed. */ - - struct ath_hw { -- struct ath_ops reg_ops; -+ ath_ops_no_const reg_ops; - - struct ieee80211_hw *hw; - struct ath_common common; -diff -urNp linux-3.0.4/drivers/net/wireless/ath/ath.h linux-3.0.4/drivers/net/wireless/ath/ath.h ---- linux-3.0.4/drivers/net/wireless/ath/ath.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ath/ath.h 2011-08-23 21:47:55.000000000 -0400 -@@ -121,6 +121,7 @@ struct ath_ops { - void (*write_flush) (void *); - u32 (*rmw)(void *, u32 reg_offset, u32 set, u32 clr); - }; -+typedef struct ath_ops __no_const ath_ops_no_const; - - struct ath_common; - struct ath_bus_ops; -diff -urNp linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c ---- linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ipw2x00/ipw2100.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2100,6 +2100,8 @@ static int ipw2100_set_essid(struct ipw2 - int err; - DECLARE_SSID_BUF(ssid); - -+ pax_track_stack(); -+ - IPW_DEBUG_HC("SSID: '%s'\n", print_ssid(ssid, essid, ssid_len)); - - if (ssid_len) -@@ -5449,6 +5451,8 @@ static int ipw2100_set_key(struct ipw210 - struct ipw2100_wep_key *wep_key = (void *)cmd.host_command_parameters; - int err; - -+ pax_track_stack(); -+ - IPW_DEBUG_HC("WEP_KEY_INFO: index = %d, len = %d/%d\n", - idx, keylen, len); - -diff -urNp linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c ---- linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/ipw2x00/libipw_rx.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1565,6 +1565,8 @@ static void libipw_process_probe_respons - unsigned long flags; - DECLARE_SSID_BUF(ssid); - -+ pax_track_stack(); -+ - LIBIPW_DEBUG_SCAN("'%s' (%pM" - "): %c%c%c%c %c%c%c%c-%c%c%c%c %c%c%c%c\n", - print_ssid(ssid, info_element->data, info_element->len), -diff -urNp linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c ---- linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlegacy/iwl3945-base.c 2011-08-23 21:47:55.000000000 -0400 -@@ -3962,7 +3962,9 @@ static int iwl3945_pci_probe(struct pci_ - */ - if (iwl3945_mod_params.disable_hw_scan) { - IWL_DEBUG_INFO(priv, "Disabling hw_scan\n"); -- iwl3945_hw_ops.hw_scan = NULL; -+ pax_open_kernel(); -+ *(void **)&iwl3945_hw_ops.hw_scan = NULL; -+ pax_close_kernel(); - } - - IWL_DEBUG_INFO(priv, "*** LOAD DRIVER ***\n"); -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-agn-rs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -910,6 +910,8 @@ static void rs_tx_status(void *priv_r, s - struct iwl_station_priv *sta_priv = (void *)sta->drv_priv; - struct iwl_rxon_context *ctx = sta_priv->common.ctx; - -+ pax_track_stack(); -+ - IWL_DEBUG_RATE_LIMIT(priv, "get frame ack response, update rate scale window\n"); - - /* Treat uninitialized rate scaling data same as non-existing. */ -@@ -2918,6 +2920,8 @@ static void rs_fill_link_cmd(struct iwl_ - container_of(lq_sta, struct iwl_station_priv, lq_sta); - struct iwl_link_quality_cmd *lq_cmd = &lq_sta->lq; - -+ pax_track_stack(); -+ - /* Override starting rate (index 0) if needed for debug purposes */ - rs_dbgfs_set_mcs(lq_sta, &new_rate, index); - -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -548,6 +548,8 @@ static ssize_t iwl_dbgfs_status_read(str - int pos = 0; - const size_t bufsz = sizeof(buf); - -+ pax_track_stack(); -+ - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_HCMD_ACTIVE:\t %d\n", - test_bit(STATUS_HCMD_ACTIVE, &priv->status)); - pos += scnprintf(buf + pos, bufsz - pos, "STATUS_INT_ENABLED:\t %d\n", -@@ -680,6 +682,8 @@ static ssize_t iwl_dbgfs_qos_read(struct - char buf[256 * NUM_IWL_RXON_CTX]; - const size_t bufsz = sizeof(buf); - -+ pax_track_stack(); -+ - for_each_context(priv, ctx) { - pos += scnprintf(buf + pos, bufsz - pos, "context %d:\n", - ctx->ctxid); -diff -urNp linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h ---- linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwlwifi/iwl-debug.h 2011-08-23 21:47:55.000000000 -0400 -@@ -68,8 +68,8 @@ do { - } while (0) - - #else --#define IWL_DEBUG(__priv, level, fmt, args...) --#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) -+#define IWL_DEBUG(__priv, level, fmt, args...) do {} while (0) -+#define IWL_DEBUG_LIMIT(__priv, level, fmt, args...) do {} while (0) - static inline void iwl_print_hex_dump(struct iwl_priv *priv, int level, - const void *p, u32 len) - {} -diff -urNp linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c ---- linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/iwmc3200wifi/debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -327,6 +327,8 @@ static ssize_t iwm_debugfs_fw_err_read(s - int buf_len = 512; - size_t len = 0; - -+ pax_track_stack(); -+ - if (*ppos != 0) - return 0; - if (count < sizeof(buf)) -diff -urNp linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c ---- linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/mac80211_hwsim.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1260,9 +1260,11 @@ static int __init init_mac80211_hwsim(vo - return -EINVAL; - - if (fake_hw_scan) { -- mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; -- mac80211_hwsim_ops.sw_scan_start = NULL; -- mac80211_hwsim_ops.sw_scan_complete = NULL; -+ pax_open_kernel(); -+ *(void **)&mac80211_hwsim_ops.hw_scan = mac80211_hwsim_hw_scan; -+ *(void **)&mac80211_hwsim_ops.sw_scan_start = NULL; -+ *(void **)&mac80211_hwsim_ops.sw_scan_complete = NULL; -+ pax_close_kernel(); - } - - spin_lock_init(&hwsim_radio_lock); -diff -urNp linux-3.0.4/drivers/net/wireless/rndis_wlan.c linux-3.0.4/drivers/net/wireless/rndis_wlan.c ---- linux-3.0.4/drivers/net/wireless/rndis_wlan.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/rndis_wlan.c 2011-08-23 21:47:55.000000000 -0400 -@@ -1277,7 +1277,7 @@ static int set_rts_threshold(struct usbn - - netdev_dbg(usbdev->net, "%s(): %i\n", __func__, rts_threshold); - -- if (rts_threshold < 0 || rts_threshold > 2347) -+ if (rts_threshold > 2347) - rts_threshold = 2347; - - tmp = cpu_to_le32(rts_threshold); -diff -urNp linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c ---- linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/rtlwifi/rtl8192c/phy_common.c 2011-08-23 21:48:14.000000000 -0400 -@@ -837,6 +837,8 @@ bool _rtl92c_phy_sw_chnl_step_by_step(st - u8 rfpath; - u8 num_total_rfpath = rtlphy->num_total_rfpath; - -+ pax_track_stack(); -+ - precommoncmdcnt = 0; - _rtl92c_phy_set_sw_chnl_cmdarray(precommoncmd, precommoncmdcnt++, - MAX_PRECMD_CNT, -diff -urNp linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h ---- linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/wl1251/wl1251.h 2011-08-23 21:47:55.000000000 -0400 -@@ -266,7 +266,7 @@ struct wl1251_if_operations { - void (*reset)(struct wl1251 *wl); - void (*enable_irq)(struct wl1251 *wl); - void (*disable_irq)(struct wl1251 *wl); --}; -+} __no_const; - - struct wl1251 { - struct ieee80211_hw *hw; -diff -urNp linux-3.0.4/drivers/net/wireless/wl12xx/spi.c linux-3.0.4/drivers/net/wireless/wl12xx/spi.c ---- linux-3.0.4/drivers/net/wireless/wl12xx/spi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/net/wireless/wl12xx/spi.c 2011-08-23 21:48:14.000000000 -0400 -@@ -280,6 +280,8 @@ static void wl1271_spi_raw_write(struct - u32 chunk_len; - int i; - -+ pax_track_stack(); -+ - WARN_ON(len > WL1271_AGGR_BUFFER_SIZE); - - spi_message_init(&m); -diff -urNp linux-3.0.4/drivers/oprofile/buffer_sync.c linux-3.0.4/drivers/oprofile/buffer_sync.c ---- linux-3.0.4/drivers/oprofile/buffer_sync.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/buffer_sync.c 2011-08-23 21:47:55.000000000 -0400 -@@ -343,7 +343,7 @@ static void add_data(struct op_entry *en - if (cookie == NO_COOKIE) - offset = pc; - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - offset = pc; - } - if (cookie != last_cookie) { -@@ -387,14 +387,14 @@ add_sample(struct mm_struct *mm, struct - /* add userspace sample */ - - if (!mm) { -- atomic_inc(&oprofile_stats.sample_lost_no_mm); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mm); - return 0; - } - - cookie = lookup_dcookie(mm, s->eip, &offset); - - if (cookie == INVALID_COOKIE) { -- atomic_inc(&oprofile_stats.sample_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.sample_lost_no_mapping); - return 0; - } - -@@ -563,7 +563,7 @@ void sync_buffer(int cpu) - /* ignore backtraces if failed to add a sample */ - if (state == sb_bt_start) { - state = sb_bt_ignore; -- atomic_inc(&oprofile_stats.bt_lost_no_mapping); -+ atomic_inc_unchecked(&oprofile_stats.bt_lost_no_mapping); - } - } - release_mm(mm); -diff -urNp linux-3.0.4/drivers/oprofile/event_buffer.c linux-3.0.4/drivers/oprofile/event_buffer.c ---- linux-3.0.4/drivers/oprofile/event_buffer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/event_buffer.c 2011-08-23 21:47:55.000000000 -0400 -@@ -53,7 +53,7 @@ void add_event_entry(unsigned long value - } - - if (buffer_pos == buffer_size) { -- atomic_inc(&oprofile_stats.event_lost_overflow); -+ atomic_inc_unchecked(&oprofile_stats.event_lost_overflow); - return; - } - -diff -urNp linux-3.0.4/drivers/oprofile/oprof.c linux-3.0.4/drivers/oprofile/oprof.c ---- linux-3.0.4/drivers/oprofile/oprof.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprof.c 2011-08-23 21:47:55.000000000 -0400 -@@ -110,7 +110,7 @@ static void switch_worker(struct work_st - if (oprofile_ops.switch_events()) - return; - -- atomic_inc(&oprofile_stats.multiplex_counter); -+ atomic_inc_unchecked(&oprofile_stats.multiplex_counter); - start_switch_worker(); - } - -diff -urNp linux-3.0.4/drivers/oprofile/oprofilefs.c linux-3.0.4/drivers/oprofile/oprofilefs.c ---- linux-3.0.4/drivers/oprofile/oprofilefs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofilefs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -186,7 +186,7 @@ static const struct file_operations atom - - - int oprofilefs_create_ro_atomic(struct super_block *sb, struct dentry *root, -- char const *name, atomic_t *val) -+ char const *name, atomic_unchecked_t *val) - { - return __oprofilefs_create_file(sb, root, name, - &atomic_ro_fops, 0444, val); -diff -urNp linux-3.0.4/drivers/oprofile/oprofile_stats.c linux-3.0.4/drivers/oprofile/oprofile_stats.c ---- linux-3.0.4/drivers/oprofile/oprofile_stats.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofile_stats.c 2011-08-23 21:47:55.000000000 -0400 -@@ -30,11 +30,11 @@ void oprofile_reset_stats(void) - cpu_buf->sample_invalid_eip = 0; - } - -- atomic_set(&oprofile_stats.sample_lost_no_mm, 0); -- atomic_set(&oprofile_stats.sample_lost_no_mapping, 0); -- atomic_set(&oprofile_stats.event_lost_overflow, 0); -- atomic_set(&oprofile_stats.bt_lost_no_mapping, 0); -- atomic_set(&oprofile_stats.multiplex_counter, 0); -+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mm, 0); -+ atomic_set_unchecked(&oprofile_stats.sample_lost_no_mapping, 0); -+ atomic_set_unchecked(&oprofile_stats.event_lost_overflow, 0); -+ atomic_set_unchecked(&oprofile_stats.bt_lost_no_mapping, 0); -+ atomic_set_unchecked(&oprofile_stats.multiplex_counter, 0); - } - - -diff -urNp linux-3.0.4/drivers/oprofile/oprofile_stats.h linux-3.0.4/drivers/oprofile/oprofile_stats.h ---- linux-3.0.4/drivers/oprofile/oprofile_stats.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/oprofile/oprofile_stats.h 2011-08-23 21:47:55.000000000 -0400 -@@ -13,11 +13,11 @@ - #include - - struct oprofile_stat_struct { -- atomic_t sample_lost_no_mm; -- atomic_t sample_lost_no_mapping; -- atomic_t bt_lost_no_mapping; -- atomic_t event_lost_overflow; -- atomic_t multiplex_counter; -+ atomic_unchecked_t sample_lost_no_mm; -+ atomic_unchecked_t sample_lost_no_mapping; -+ atomic_unchecked_t bt_lost_no_mapping; -+ atomic_unchecked_t event_lost_overflow; -+ atomic_unchecked_t multiplex_counter; - }; - - extern struct oprofile_stat_struct oprofile_stats; -diff -urNp linux-3.0.4/drivers/parport/procfs.c linux-3.0.4/drivers/parport/procfs.c ---- linux-3.0.4/drivers/parport/procfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/parport/procfs.c 2011-08-23 21:47:55.000000000 -0400 -@@ -64,7 +64,7 @@ static int do_active_device(ctl_table *t - - *ppos += len; - -- return copy_to_user(result, buffer, len) ? -EFAULT : 0; -+ return (len > sizeof buffer || copy_to_user(result, buffer, len)) ? -EFAULT : 0; - } - - #ifdef CONFIG_PARPORT_1284 -@@ -106,7 +106,7 @@ static int do_autoprobe(ctl_table *table - - *ppos += len; - -- return copy_to_user (result, buffer, len) ? -EFAULT : 0; -+ return (len > sizeof buffer || copy_to_user (result, buffer, len)) ? -EFAULT : 0; - } - #endif /* IEEE1284.3 support. */ - -diff -urNp linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h ---- linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/hotplug/cpci_hotplug.h 2011-08-23 21:47:55.000000000 -0400 -@@ -59,7 +59,7 @@ struct cpci_hp_controller_ops { - int (*hardware_test) (struct slot* slot, u32 value); - u8 (*get_power) (struct slot* slot); - int (*set_power) (struct slot* slot, int value); --}; -+} __no_const; - - struct cpci_hp_controller { - unsigned int irq; -diff -urNp linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c ---- linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/hotplug/cpqphp_nvram.c 2011-08-23 21:47:55.000000000 -0400 -@@ -428,9 +428,13 @@ static u32 store_HRT (void __iomem *rom_ - - void compaq_nvram_init (void __iomem *rom_start) - { -+ -+#ifndef CONFIG_PAX_KERNEXEC - if (rom_start) { - compaq_int15_entry_point = (rom_start + ROM_INT15_PHY_ADDR - ROM_PHY_ADDR); - } -+#endif -+ - dbg("int15 entry = %p\n", compaq_int15_entry_point); - - /* initialize our int15 lock */ -diff -urNp linux-3.0.4/drivers/pci/pcie/aspm.c linux-3.0.4/drivers/pci/pcie/aspm.c ---- linux-3.0.4/drivers/pci/pcie/aspm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/pcie/aspm.c 2011-08-23 21:47:55.000000000 -0400 -@@ -27,9 +27,9 @@ - #define MODULE_PARAM_PREFIX "pcie_aspm." - - /* Note: those are not register definitions */ --#define ASPM_STATE_L0S_UP (1) /* Upstream direction L0s state */ --#define ASPM_STATE_L0S_DW (2) /* Downstream direction L0s state */ --#define ASPM_STATE_L1 (4) /* L1 state */ -+#define ASPM_STATE_L0S_UP (1U) /* Upstream direction L0s state */ -+#define ASPM_STATE_L0S_DW (2U) /* Downstream direction L0s state */ -+#define ASPM_STATE_L1 (4U) /* L1 state */ - #define ASPM_STATE_L0S (ASPM_STATE_L0S_UP | ASPM_STATE_L0S_DW) - #define ASPM_STATE_ALL (ASPM_STATE_L0S | ASPM_STATE_L1) - -diff -urNp linux-3.0.4/drivers/pci/probe.c linux-3.0.4/drivers/pci/probe.c ---- linux-3.0.4/drivers/pci/probe.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/probe.c 2011-08-23 21:47:55.000000000 -0400 -@@ -129,7 +129,7 @@ int __pci_read_base(struct pci_dev *dev, - u32 l, sz, mask; - u16 orig_cmd; - -- mask = type ? PCI_ROM_ADDRESS_MASK : ~0; -+ mask = type ? (u32)PCI_ROM_ADDRESS_MASK : ~0; - - if (!dev->mmio_always_on) { - pci_read_config_word(dev, PCI_COMMAND, &orig_cmd); -diff -urNp linux-3.0.4/drivers/pci/proc.c linux-3.0.4/drivers/pci/proc.c ---- linux-3.0.4/drivers/pci/proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/proc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -476,7 +476,16 @@ static const struct file_operations proc - static int __init pci_proc_init(void) - { - struct pci_dev *dev = NULL; -+ -+#ifdef CONFIG_GRKERNSEC_PROC_ADD -+#ifdef CONFIG_GRKERNSEC_PROC_USER -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR, NULL); -+#elif defined(CONFIG_GRKERNSEC_PROC_USERGROUP) -+ proc_bus_pci_dir = proc_mkdir_mode("bus/pci", S_IRUSR | S_IXUSR | S_IRGRP | S_IXGRP, NULL); -+#endif -+#else - proc_bus_pci_dir = proc_mkdir("bus/pci", NULL); -+#endif - proc_create("devices", 0, proc_bus_pci_dir, - &proc_bus_pci_dev_operations); - proc_initialized = 1; -diff -urNp linux-3.0.4/drivers/pci/xen-pcifront.c linux-3.0.4/drivers/pci/xen-pcifront.c ---- linux-3.0.4/drivers/pci/xen-pcifront.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pci/xen-pcifront.c 2011-08-23 21:48:14.000000000 -0400 -@@ -187,6 +187,8 @@ static int pcifront_bus_read(struct pci_ - struct pcifront_sd *sd = bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - if (verbose_request) - dev_info(&pdev->xdev->dev, - "read dev=%04x:%02x:%02x.%01x - offset %x size %d\n", -@@ -226,6 +228,8 @@ static int pcifront_bus_write(struct pci - struct pcifront_sd *sd = bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - if (verbose_request) - dev_info(&pdev->xdev->dev, - "write dev=%04x:%02x:%02x.%01x - " -@@ -258,6 +262,8 @@ static int pci_frontend_enable_msix(stru - struct pcifront_device *pdev = pcifront_get_pdev(sd); - struct msi_desc *entry; - -+ pax_track_stack(); -+ - if (nvec > SH_INFO_MAX_VEC) { - dev_err(&dev->dev, "too much vector for pci frontend: %x." - " Increase SH_INFO_MAX_VEC.\n", nvec); -@@ -309,6 +315,8 @@ static void pci_frontend_disable_msix(st - struct pcifront_sd *sd = dev->bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - err = do_pci_op(pdev, &op); - - /* What should do for error ? */ -@@ -328,6 +336,8 @@ static int pci_frontend_enable_msi(struc - struct pcifront_sd *sd = dev->bus->sysdata; - struct pcifront_device *pdev = pcifront_get_pdev(sd); - -+ pax_track_stack(); -+ - err = do_pci_op(pdev, &op); - if (likely(!err)) { - vector[0] = op.value; -diff -urNp linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c ---- linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/platform/x86/thinkpad_acpi.c 2011-08-23 21:47:55.000000000 -0400 -@@ -2094,7 +2094,7 @@ static int hotkey_mask_get(void) - return 0; - } - --void static hotkey_mask_warn_incomplete_mask(void) -+static void hotkey_mask_warn_incomplete_mask(void) - { - /* log only what the user can fix... */ - const u32 wantedmask = hotkey_driver_mask & -diff -urNp linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c ---- linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pnp/pnpbios/bioscalls.c 2011-08-23 21:47:55.000000000 -0400 -@@ -59,7 +59,7 @@ do { \ - set_desc_limit(&gdt[(selname) >> 3], (size) - 1); \ - } while(0) - --static struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4092, -+static const struct desc_struct bad_bios_desc = GDT_ENTRY_INIT(0x4093, - (unsigned long)__va(0x400UL), PAGE_SIZE - 0x400 - 1); - - /* -@@ -96,7 +96,10 @@ static inline u16 call_pnp_bios(u16 func - - cpu = get_cpu(); - save_desc_40 = get_cpu_gdt_table(cpu)[0x40 / 8]; -+ -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[0x40 / 8] = bad_bios_desc; -+ pax_close_kernel(); - - /* On some boxes IRQ's during PnP BIOS calls are deadly. */ - spin_lock_irqsave(&pnp_bios_lock, flags); -@@ -134,7 +137,10 @@ static inline u16 call_pnp_bios(u16 func - :"memory"); - spin_unlock_irqrestore(&pnp_bios_lock, flags); - -+ pax_open_kernel(); - get_cpu_gdt_table(cpu)[0x40 / 8] = save_desc_40; -+ pax_close_kernel(); -+ - put_cpu(); - - /* If we get here and this is set then the PnP BIOS faulted on us. */ -@@ -468,7 +474,7 @@ int pnp_bios_read_escd(char *data, u32 n - return status; - } - --void pnpbios_calls_init(union pnp_bios_install_struct *header) -+void __init pnpbios_calls_init(union pnp_bios_install_struct *header) - { - int i; - -@@ -476,6 +482,8 @@ void pnpbios_calls_init(union pnp_bios_i - pnp_bios_callpoint.offset = header->fields.pm16offset; - pnp_bios_callpoint.segment = PNP_CS16; - -+ pax_open_kernel(); -+ - for_each_possible_cpu(i) { - struct desc_struct *gdt = get_cpu_gdt_table(i); - if (!gdt) -@@ -487,4 +495,6 @@ void pnpbios_calls_init(union pnp_bios_i - set_desc_base(&gdt[GDT_ENTRY_PNPBIOS_DS], - (unsigned long)__va(header->fields.pm16dseg)); - } -+ -+ pax_close_kernel(); - } -diff -urNp linux-3.0.4/drivers/pnp/resource.c linux-3.0.4/drivers/pnp/resource.c ---- linux-3.0.4/drivers/pnp/resource.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/pnp/resource.c 2011-08-23 21:47:55.000000000 -0400 -@@ -360,7 +360,7 @@ int pnp_check_irq(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*irq < 0 || *irq > 15) -+ if (*irq > 15) - return 0; - - /* check if the resource is reserved */ -@@ -424,7 +424,7 @@ int pnp_check_dma(struct pnp_dev *dev, s - return 1; - - /* check if the resource is valid */ -- if (*dma < 0 || *dma == 4 || *dma > 7) -+ if (*dma == 4 || *dma > 7) - return 0; - - /* check if the resource is reserved */ -diff -urNp linux-3.0.4/drivers/power/bq27x00_battery.c linux-3.0.4/drivers/power/bq27x00_battery.c ---- linux-3.0.4/drivers/power/bq27x00_battery.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/power/bq27x00_battery.c 2011-08-23 21:47:55.000000000 -0400 -@@ -67,7 +67,7 @@ - struct bq27x00_device_info; - struct bq27x00_access_methods { - int (*read)(struct bq27x00_device_info *di, u8 reg, bool single); --}; -+} __no_const; - - enum bq27x00_chip { BQ27000, BQ27500 }; - -diff -urNp linux-3.0.4/drivers/regulator/max8660.c linux-3.0.4/drivers/regulator/max8660.c ---- linux-3.0.4/drivers/regulator/max8660.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/regulator/max8660.c 2011-08-23 21:47:55.000000000 -0400 -@@ -383,8 +383,10 @@ static int __devinit max8660_probe(struc - max8660->shadow_regs[MAX8660_OVER1] = 5; - } else { - /* Otherwise devices can be toggled via software */ -- max8660_dcdc_ops.enable = max8660_dcdc_enable; -- max8660_dcdc_ops.disable = max8660_dcdc_disable; -+ pax_open_kernel(); -+ *(void **)&max8660_dcdc_ops.enable = max8660_dcdc_enable; -+ *(void **)&max8660_dcdc_ops.disable = max8660_dcdc_disable; -+ pax_close_kernel(); - } - - /* -diff -urNp linux-3.0.4/drivers/regulator/mc13892-regulator.c linux-3.0.4/drivers/regulator/mc13892-regulator.c ---- linux-3.0.4/drivers/regulator/mc13892-regulator.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/regulator/mc13892-regulator.c 2011-08-23 21:47:55.000000000 -0400 -@@ -564,10 +564,12 @@ static int __devinit mc13892_regulator_p - } - mc13xxx_unlock(mc13892); - -- mc13892_regulators[MC13892_VCAM].desc.ops->set_mode -+ pax_open_kernel(); -+ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->set_mode - = mc13892_vcam_set_mode; -- mc13892_regulators[MC13892_VCAM].desc.ops->get_mode -+ *(void **)&mc13892_regulators[MC13892_VCAM].desc.ops->get_mode - = mc13892_vcam_get_mode; -+ pax_close_kernel(); - for (i = 0; i < pdata->num_regulators; i++) { - init_data = &pdata->regulators[i]; - priv->regulators[i] = regulator_register( -diff -urNp linux-3.0.4/drivers/rtc/rtc-dev.c linux-3.0.4/drivers/rtc/rtc-dev.c ---- linux-3.0.4/drivers/rtc/rtc-dev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/rtc/rtc-dev.c 2011-08-23 21:48:14.000000000 -0400 -@@ -14,6 +14,7 @@ - #include - #include - #include -+#include - #include "rtc-core.h" - - static dev_t rtc_devt; -@@ -345,6 +346,8 @@ static long rtc_dev_ioctl(struct file *f - if (copy_from_user(&tm, uarg, sizeof(tm))) - return -EFAULT; - -+ gr_log_timechange(); -+ - return rtc_set_time(rtc, &tm); - - case RTC_PIE_ON: -diff -urNp linux-3.0.4/drivers/scsi/aacraid/aacraid.h linux-3.0.4/drivers/scsi/aacraid/aacraid.h ---- linux-3.0.4/drivers/scsi/aacraid/aacraid.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/aacraid/aacraid.h 2011-08-23 21:47:55.000000000 -0400 -@@ -492,7 +492,7 @@ struct adapter_ops - int (*adapter_scsi)(struct fib * fib, struct scsi_cmnd * cmd); - /* Administrative operations */ - int (*adapter_comm)(struct aac_dev * dev, int comm); --}; -+} __no_const; - - /* - * Define which interrupt handler needs to be installed -diff -urNp linux-3.0.4/drivers/scsi/aacraid/commctrl.c linux-3.0.4/drivers/scsi/aacraid/commctrl.c ---- linux-3.0.4/drivers/scsi/aacraid/commctrl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/aacraid/commctrl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -482,6 +482,7 @@ static int aac_send_raw_srb(struct aac_d - u32 actual_fibsize64, actual_fibsize = 0; - int i; - -+ pax_track_stack(); - - if (dev->in_reset) { - dprintk((KERN_DEBUG"aacraid: send raw srb -EBUSY\n")); -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfad.c linux-3.0.4/drivers/scsi/bfa/bfad.c ---- linux-3.0.4/drivers/scsi/bfa/bfad.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfad.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1032,6 +1032,8 @@ bfad_start_ops(struct bfad_s *bfad) { - struct bfad_vport_s *vport, *vport_new; - struct bfa_fcs_driver_info_s driver_info; - -+ pax_track_stack(); -+ - /* Fill the driver_info info to fcs*/ - memset(&driver_info, 0, sizeof(driver_info)); - strncpy(driver_info.version, BFAD_DRIVER_VERSION, -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c ---- linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_fcs_lport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1559,6 +1559,8 @@ bfa_fcs_lport_fdmi_build_rhba_pyld(struc - u16 len, count; - u16 templen; - -+ pax_track_stack(); -+ - /* - * get hba attributes - */ -@@ -1836,6 +1838,8 @@ bfa_fcs_lport_fdmi_build_portattr_block( - u8 count = 0; - u16 templen; - -+ pax_track_stack(); -+ - /* - * get port attributes - */ -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c ---- linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_fcs_rport.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1844,6 +1844,8 @@ bfa_fcs_rport_process_rpsc(struct bfa_fc - struct fc_rpsc_speed_info_s speeds; - struct bfa_port_attr_s pport_attr; - -+ pax_track_stack(); -+ - bfa_trc(port->fcs, rx_fchs->s_id); - bfa_trc(port->fcs, rx_fchs->d_id); - -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa.h linux-3.0.4/drivers/scsi/bfa/bfa.h ---- linux-3.0.4/drivers/scsi/bfa/bfa.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa.h 2011-08-23 21:47:55.000000000 -0400 -@@ -238,7 +238,7 @@ struct bfa_hwif_s { - u32 *nvecs, u32 *maxvec); - void (*hw_msix_get_rme_range) (struct bfa_s *bfa, u32 *start, - u32 *end); --}; -+} __no_const; - typedef void (*bfa_cb_iocfc_t) (void *cbarg, enum bfa_status status); - - struct bfa_iocfc_s { -diff -urNp linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h ---- linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/bfa/bfa_ioc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -196,7 +196,7 @@ struct bfa_ioc_cbfn_s { - bfa_ioc_disable_cbfn_t disable_cbfn; - bfa_ioc_hbfail_cbfn_t hbfail_cbfn; - bfa_ioc_reset_cbfn_t reset_cbfn; --}; -+} __no_const; - - /* - * Heartbeat failure notification queue element. -@@ -268,7 +268,7 @@ struct bfa_ioc_hwif_s { - void (*ioc_sync_leave) (struct bfa_ioc_s *ioc); - void (*ioc_sync_ack) (struct bfa_ioc_s *ioc); - bfa_boolean_t (*ioc_sync_complete) (struct bfa_ioc_s *ioc); --}; -+} __no_const; - - #define bfa_ioc_pcifn(__ioc) ((__ioc)->pcidev.pci_func) - #define bfa_ioc_devid(__ioc) ((__ioc)->pcidev.device_id) -diff -urNp linux-3.0.4/drivers/scsi/BusLogic.c linux-3.0.4/drivers/scsi/BusLogic.c ---- linux-3.0.4/drivers/scsi/BusLogic.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/BusLogic.c 2011-08-23 21:48:14.000000000 -0400 -@@ -962,6 +962,8 @@ static int __init BusLogic_InitializeFla - static void __init BusLogic_InitializeProbeInfoList(struct BusLogic_HostAdapter - *PrototypeHostAdapter) - { -+ pax_track_stack(); -+ - /* - If a PCI BIOS is present, interrogate it for MultiMaster and FlashPoint - Host Adapters; otherwise, default to the standard ISA MultiMaster probe. -diff -urNp linux-3.0.4/drivers/scsi/dpt_i2o.c linux-3.0.4/drivers/scsi/dpt_i2o.c ---- linux-3.0.4/drivers/scsi/dpt_i2o.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/dpt_i2o.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1811,6 +1811,8 @@ static int adpt_i2o_passthru(adpt_hba* p - dma_addr_t addr; - ulong flags = 0; - -+ pax_track_stack(); -+ - memset(&msg, 0, MAX_MESSAGE_SIZE*4); - // get user msg size in u32s - if(get_user(size, &user_msg[0])){ -@@ -2317,6 +2319,8 @@ static s32 adpt_scsi_to_i2o(adpt_hba* pH - s32 rcode; - dma_addr_t addr; - -+ pax_track_stack(); -+ - memset(msg, 0 , sizeof(msg)); - len = scsi_bufflen(cmd); - direction = 0x00000000; -diff -urNp linux-3.0.4/drivers/scsi/eata.c linux-3.0.4/drivers/scsi/eata.c ---- linux-3.0.4/drivers/scsi/eata.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/eata.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1087,6 +1087,8 @@ static int port_detect(unsigned long por - struct hostdata *ha; - char name[16]; - -+ pax_track_stack(); -+ - sprintf(name, "%s%d", driver_name, j); - - if (!request_region(port_base, REGION_SIZE, driver_name)) { -diff -urNp linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c ---- linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/fcoe/fcoe_ctlr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2503,6 +2503,8 @@ static int fcoe_ctlr_vn_recv(struct fcoe - } buf; - int rc; - -+ pax_track_stack(); -+ - fiph = (struct fip_header *)skb->data; - sub = fiph->fip_subcode; - -diff -urNp linux-3.0.4/drivers/scsi/gdth.c linux-3.0.4/drivers/scsi/gdth.c ---- linux-3.0.4/drivers/scsi/gdth.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/gdth.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4107,6 +4107,8 @@ static int ioc_lockdrv(void __user *arg) - unsigned long flags; - gdth_ha_str *ha; - -+ pax_track_stack(); -+ - if (copy_from_user(&ldrv, arg, sizeof(gdth_ioctl_lockdrv))) - return -EFAULT; - ha = gdth_find_ha(ldrv.ionode); -@@ -4139,6 +4141,8 @@ static int ioc_resetdrv(void __user *arg - gdth_ha_str *ha; - int rval; - -+ pax_track_stack(); -+ - if (copy_from_user(&res, arg, sizeof(gdth_ioctl_reset)) || - res.number >= MAX_HDRIVES) - return -EFAULT; -@@ -4174,6 +4178,8 @@ static int ioc_general(void __user *arg, - gdth_ha_str *ha; - int rval; - -+ pax_track_stack(); -+ - if (copy_from_user(&gen, arg, sizeof(gdth_ioctl_general))) - return -EFAULT; - ha = gdth_find_ha(gen.ionode); -@@ -4642,6 +4648,9 @@ static void gdth_flush(gdth_ha_str *ha) - int i; - gdth_cmd_str gdtcmd; - char cmnd[MAX_COMMAND_SIZE]; -+ -+ pax_track_stack(); -+ - memset(cmnd, 0xff, MAX_COMMAND_SIZE); - - TRACE2(("gdth_flush() hanum %d\n", ha->hanum)); -diff -urNp linux-3.0.4/drivers/scsi/gdth_proc.c linux-3.0.4/drivers/scsi/gdth_proc.c ---- linux-3.0.4/drivers/scsi/gdth_proc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/gdth_proc.c 2011-08-23 21:48:14.000000000 -0400 -@@ -47,6 +47,9 @@ static int gdth_set_asc_info(struct Scsi - u64 paddr; - - char cmnd[MAX_COMMAND_SIZE]; -+ -+ pax_track_stack(); -+ - memset(cmnd, 0xff, 12); - memset(&gdtcmd, 0, sizeof(gdth_cmd_str)); - -@@ -175,6 +178,8 @@ static int gdth_get_info(char *buffer,ch - gdth_hget_str *phg; - char cmnd[MAX_COMMAND_SIZE]; - -+ pax_track_stack(); -+ - gdtcmd = kmalloc(sizeof(*gdtcmd), GFP_KERNEL); - estr = kmalloc(sizeof(*estr), GFP_KERNEL); - if (!gdtcmd || !estr) -diff -urNp linux-3.0.4/drivers/scsi/hosts.c linux-3.0.4/drivers/scsi/hosts.c ---- linux-3.0.4/drivers/scsi/hosts.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hosts.c 2011-08-23 21:47:55.000000000 -0400 -@@ -42,7 +42,7 @@ - #include "scsi_logging.h" - - --static atomic_t scsi_host_next_hn; /* host_no for next new host */ -+static atomic_unchecked_t scsi_host_next_hn; /* host_no for next new host */ - - - static void scsi_host_cls_release(struct device *dev) -@@ -354,7 +354,7 @@ struct Scsi_Host *scsi_host_alloc(struct - * subtract one because we increment first then return, but we need to - * know what the next host number was before increment - */ -- shost->host_no = atomic_inc_return(&scsi_host_next_hn) - 1; -+ shost->host_no = atomic_inc_return_unchecked(&scsi_host_next_hn) - 1; - shost->dma_channel = 0xff; - - /* These three are default values which can be overridden */ -diff -urNp linux-3.0.4/drivers/scsi/hpsa.c linux-3.0.4/drivers/scsi/hpsa.c ---- linux-3.0.4/drivers/scsi/hpsa.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hpsa.c 2011-08-23 21:47:55.000000000 -0400 -@@ -498,7 +498,7 @@ static inline u32 next_command(struct ct - u32 a; - - if (unlikely(!(h->transMethod & CFGTBL_Trans_Performant))) -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - - if ((*(h->reply_pool_head) & 1) == (h->reply_pool_wraparound)) { - a = *(h->reply_pool_head); /* Next cmd in ring buffer */ -@@ -2938,7 +2938,7 @@ static void start_io(struct ctlr_info *h - while (!list_empty(&h->reqQ)) { - c = list_entry(h->reqQ.next, struct CommandList, list); - /* can't do anything if fifo is full */ -- if ((h->access.fifo_full(h))) { -+ if ((h->access->fifo_full(h))) { - dev_warn(&h->pdev->dev, "fifo full\n"); - break; - } -@@ -2948,7 +2948,7 @@ static void start_io(struct ctlr_info *h - h->Qdepth--; - - /* Tell the controller execute command */ -- h->access.submit_command(h, c); -+ h->access->submit_command(h, c); - - /* Put job onto the completed Q */ - addQ(&h->cmpQ, c); -@@ -2957,17 +2957,17 @@ static void start_io(struct ctlr_info *h - - static inline unsigned long get_next_completion(struct ctlr_info *h) - { -- return h->access.command_completed(h); -+ return h->access->command_completed(h); - } - - static inline bool interrupt_pending(struct ctlr_info *h) - { -- return h->access.intr_pending(h); -+ return h->access->intr_pending(h); - } - - static inline long interrupt_not_for_us(struct ctlr_info *h) - { -- return (h->access.intr_pending(h) == 0) || -+ return (h->access->intr_pending(h) == 0) || - (h->interrupts_enabled == 0); - } - -@@ -3857,7 +3857,7 @@ static int __devinit hpsa_pci_init(struc - if (prod_index < 0) - return -ENODEV; - h->product_name = products[prod_index].product_name; -- h->access = *(products[prod_index].access); -+ h->access = products[prod_index].access; - - if (hpsa_board_disabled(h->pdev)) { - dev_warn(&h->pdev->dev, "controller appears to be disabled\n"); -@@ -4134,7 +4134,7 @@ reinit_after_soft_reset: - } - - /* make sure the board interrupts are off */ -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - - if (hpsa_request_irq(h, do_hpsa_intr_msi, do_hpsa_intr_intx)) - goto clean2; -@@ -4168,7 +4168,7 @@ reinit_after_soft_reset: - * fake ones to scoop up any residual completions. - */ - spin_lock_irqsave(&h->lock, flags); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - spin_unlock_irqrestore(&h->lock, flags); - free_irq(h->intr[h->intr_mode], h); - rc = hpsa_request_irq(h, hpsa_msix_discard_completions, -@@ -4187,9 +4187,9 @@ reinit_after_soft_reset: - dev_info(&h->pdev->dev, "Board READY.\n"); - dev_info(&h->pdev->dev, - "Waiting for stale completions to drain.\n"); -- h->access.set_intr_mask(h, HPSA_INTR_ON); -+ h->access->set_intr_mask(h, HPSA_INTR_ON); - msleep(10000); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - - rc = controller_reset_failed(h->cfgtable); - if (rc) -@@ -4210,7 +4210,7 @@ reinit_after_soft_reset: - } - - /* Turn the interrupts on so we can service requests */ -- h->access.set_intr_mask(h, HPSA_INTR_ON); -+ h->access->set_intr_mask(h, HPSA_INTR_ON); - - hpsa_hba_inquiry(h); - hpsa_register_scsi(h); /* hook ourselves into SCSI subsystem */ -@@ -4263,7 +4263,7 @@ static void hpsa_shutdown(struct pci_dev - * To write all data in the battery backed cache to disks - */ - hpsa_flush_cache(h); -- h->access.set_intr_mask(h, HPSA_INTR_OFF); -+ h->access->set_intr_mask(h, HPSA_INTR_OFF); - free_irq(h->intr[h->intr_mode], h); - #ifdef CONFIG_PCI_MSI - if (h->msix_vector) -@@ -4426,7 +4426,7 @@ static __devinit void hpsa_enter_perform - return; - } - /* Change the access methods to the performant access methods */ -- h->access = SA5_performant_access; -+ h->access = &SA5_performant_access; - h->transMethod = CFGTBL_Trans_Performant; - } - -diff -urNp linux-3.0.4/drivers/scsi/hpsa.h linux-3.0.4/drivers/scsi/hpsa.h ---- linux-3.0.4/drivers/scsi/hpsa.h 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/hpsa.h 2011-08-23 21:47:55.000000000 -0400 -@@ -73,7 +73,7 @@ struct ctlr_info { - unsigned int msix_vector; - unsigned int msi_vector; - int intr_mode; /* either PERF_MODE_INT or SIMPLE_MODE_INT */ -- struct access_method access; -+ struct access_method *access; - - /* queue and queue Info */ - struct list_head reqQ; -diff -urNp linux-3.0.4/drivers/scsi/ips.h linux-3.0.4/drivers/scsi/ips.h ---- linux-3.0.4/drivers/scsi/ips.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/ips.h 2011-08-23 21:47:55.000000000 -0400 -@@ -1027,7 +1027,7 @@ typedef struct { - int (*intr)(struct ips_ha *); - void (*enableint)(struct ips_ha *); - uint32_t (*statupd)(struct ips_ha *); --} ips_hw_func_t; -+} __no_const ips_hw_func_t; - - typedef struct ips_ha { - uint8_t ha_id[IPS_MAX_CHANNELS+1]; -diff -urNp linux-3.0.4/drivers/scsi/libfc/fc_exch.c linux-3.0.4/drivers/scsi/libfc/fc_exch.c ---- linux-3.0.4/drivers/scsi/libfc/fc_exch.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/libfc/fc_exch.c 2011-08-23 21:47:55.000000000 -0400 -@@ -105,12 +105,12 @@ struct fc_exch_mgr { - * all together if not used XXX - */ - struct { -- atomic_t no_free_exch; -- atomic_t no_free_exch_xid; -- atomic_t xid_not_found; -- atomic_t xid_busy; -- atomic_t seq_not_found; -- atomic_t non_bls_resp; -+ atomic_unchecked_t no_free_exch; -+ atomic_unchecked_t no_free_exch_xid; -+ atomic_unchecked_t xid_not_found; -+ atomic_unchecked_t xid_busy; -+ atomic_unchecked_t seq_not_found; -+ atomic_unchecked_t non_bls_resp; - } stats; - }; - -@@ -700,7 +700,7 @@ static struct fc_exch *fc_exch_em_alloc( - /* allocate memory for exchange */ - ep = mempool_alloc(mp->ep_pool, GFP_ATOMIC); - if (!ep) { -- atomic_inc(&mp->stats.no_free_exch); -+ atomic_inc_unchecked(&mp->stats.no_free_exch); - goto out; - } - memset(ep, 0, sizeof(*ep)); -@@ -761,7 +761,7 @@ out: - return ep; - err: - spin_unlock_bh(&pool->lock); -- atomic_inc(&mp->stats.no_free_exch_xid); -+ atomic_inc_unchecked(&mp->stats.no_free_exch_xid); - mempool_free(ep, mp->ep_pool); - return NULL; - } -@@ -906,7 +906,7 @@ static enum fc_pf_rjt_reason fc_seq_look - xid = ntohs(fh->fh_ox_id); /* we originated exch */ - ep = fc_exch_find(mp, xid); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_OX_ID; - goto out; - } -@@ -936,7 +936,7 @@ static enum fc_pf_rjt_reason fc_seq_look - ep = fc_exch_find(mp, xid); - if ((f_ctl & FC_FC_FIRST_SEQ) && fc_sof_is_init(fr_sof(fp))) { - if (ep) { -- atomic_inc(&mp->stats.xid_busy); -+ atomic_inc_unchecked(&mp->stats.xid_busy); - reject = FC_RJT_RX_ID; - goto rel; - } -@@ -947,7 +947,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } - xid = ep->xid; /* get our XID */ - } else if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - reject = FC_RJT_RX_ID; /* XID not found */ - goto out; - } -@@ -964,7 +964,7 @@ static enum fc_pf_rjt_reason fc_seq_look - } else { - sp = &ep->seq; - if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - reject = FC_RJT_SEQ_ID; /* sequence/exch should exist */ - goto rel; - } -@@ -1392,22 +1392,22 @@ static void fc_exch_recv_seq_resp(struct - - ep = fc_exch_find(mp, ntohs(fh->fh_ox_id)); - if (!ep) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto out; - } - if (ep->esb_stat & ESB_ST_COMPLETE) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - if (ep->rxid == FC_XID_UNKNOWN) - ep->rxid = ntohs(fh->fh_rx_id); - if (ep->sid != 0 && ep->sid != ntoh24(fh->fh_d_id)) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - if (ep->did != ntoh24(fh->fh_s_id) && - ep->did != FC_FID_FLOGI) { -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - goto rel; - } - sof = fr_sof(fp); -@@ -1416,7 +1416,7 @@ static void fc_exch_recv_seq_resp(struct - sp->ssb_stat |= SSB_ST_RESP; - sp->id = fh->fh_seq_id; - } else if (sp->id != fh->fh_seq_id) { -- atomic_inc(&mp->stats.seq_not_found); -+ atomic_inc_unchecked(&mp->stats.seq_not_found); - goto rel; - } - -@@ -1480,9 +1480,9 @@ static void fc_exch_recv_resp(struct fc_ - sp = fc_seq_lookup_orig(mp, fp); /* doesn't hold sequence */ - - if (!sp) -- atomic_inc(&mp->stats.xid_not_found); -+ atomic_inc_unchecked(&mp->stats.xid_not_found); - else -- atomic_inc(&mp->stats.non_bls_resp); -+ atomic_inc_unchecked(&mp->stats.non_bls_resp); - - fc_frame_free(fp); - } -diff -urNp linux-3.0.4/drivers/scsi/libsas/sas_ata.c linux-3.0.4/drivers/scsi/libsas/sas_ata.c ---- linux-3.0.4/drivers/scsi/libsas/sas_ata.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/libsas/sas_ata.c 2011-08-23 21:47:55.000000000 -0400 -@@ -368,7 +368,7 @@ static struct ata_port_operations sas_sa - .postreset = ata_std_postreset, - .error_handler = ata_std_error_handler, - .post_internal_cmd = sas_ata_post_internal, -- .qc_defer = ata_std_qc_defer, -+ .qc_defer = ata_std_qc_defer, - .qc_prep = ata_noop_qc_prep, - .qc_issue = sas_ata_qc_issue, - .qc_fill_rtf = sas_ata_qc_fill_rtf, -diff -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_debugfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -104,7 +104,7 @@ MODULE_PARM_DESC(lpfc_debugfs_mask_disc_ - - #include - --static atomic_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); -+static atomic_unchecked_t lpfc_debugfs_seq_trc_cnt = ATOMIC_INIT(0); - static unsigned long lpfc_debugfs_start_time = 0L; - - /* iDiag */ -@@ -141,7 +141,7 @@ lpfc_debugfs_disc_trc_data(struct lpfc_v - lpfc_debugfs_enable = 0; - - len = 0; -- index = (atomic_read(&vport->disc_trc_cnt) + 1) & -+ index = (atomic_read_unchecked(&vport->disc_trc_cnt) + 1) & - (lpfc_debugfs_max_disc_trc - 1); - for (i = index; i < lpfc_debugfs_max_disc_trc; i++) { - dtp = vport->disc_trc + i; -@@ -202,7 +202,7 @@ lpfc_debugfs_slow_ring_trc_data(struct l - lpfc_debugfs_enable = 0; - - len = 0; -- index = (atomic_read(&phba->slow_ring_trc_cnt) + 1) & -+ index = (atomic_read_unchecked(&phba->slow_ring_trc_cnt) + 1) & - (lpfc_debugfs_max_slow_ring_trc - 1); - for (i = index; i < lpfc_debugfs_max_slow_ring_trc; i++) { - dtp = phba->slow_ring_trc + i; -@@ -380,6 +380,8 @@ lpfc_debugfs_dumpHBASlim_data(struct lpf - uint32_t *ptr; - char buffer[1024]; - -+ pax_track_stack(); -+ - off = 0; - spin_lock_irq(&phba->hbalock); - -@@ -617,14 +619,14 @@ lpfc_debugfs_disc_trc(struct lpfc_vport - !vport || !vport->disc_trc) - return; - -- index = atomic_inc_return(&vport->disc_trc_cnt) & -+ index = atomic_inc_return_unchecked(&vport->disc_trc_cnt) & - (lpfc_debugfs_max_disc_trc - 1); - dtp = vport->disc_trc + index; - dtp->fmt = fmt; - dtp->data1 = data1; - dtp->data2 = data2; - dtp->data3 = data3; -- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); -+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); - dtp->jif = jiffies; - #endif - return; -@@ -655,14 +657,14 @@ lpfc_debugfs_slow_ring_trc(struct lpfc_h - !phba || !phba->slow_ring_trc) - return; - -- index = atomic_inc_return(&phba->slow_ring_trc_cnt) & -+ index = atomic_inc_return_unchecked(&phba->slow_ring_trc_cnt) & - (lpfc_debugfs_max_slow_ring_trc - 1); - dtp = phba->slow_ring_trc + index; - dtp->fmt = fmt; - dtp->data1 = data1; - dtp->data2 = data2; - dtp->data3 = data3; -- dtp->seq_cnt = atomic_inc_return(&lpfc_debugfs_seq_trc_cnt); -+ dtp->seq_cnt = atomic_inc_return_unchecked(&lpfc_debugfs_seq_trc_cnt); - dtp->jif = jiffies; - #endif - return; -@@ -2606,7 +2608,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor - "slow_ring buffer\n"); - goto debug_failed; - } -- atomic_set(&phba->slow_ring_trc_cnt, 0); -+ atomic_set_unchecked(&phba->slow_ring_trc_cnt, 0); - memset(phba->slow_ring_trc, 0, - (sizeof(struct lpfc_debugfs_trc) * - lpfc_debugfs_max_slow_ring_trc)); -@@ -2652,7 +2654,7 @@ lpfc_debugfs_initialize(struct lpfc_vpor - "buffer\n"); - goto debug_failed; - } -- atomic_set(&vport->disc_trc_cnt, 0); -+ atomic_set_unchecked(&vport->disc_trc_cnt, 0); - - snprintf(name, sizeof(name), "discovery_trace"); - vport->debug_disc_trc = -diff -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc.h linux-3.0.4/drivers/scsi/lpfc/lpfc.h ---- linux-3.0.4/drivers/scsi/lpfc/lpfc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc.h 2011-08-23 21:47:55.000000000 -0400 -@@ -420,7 +420,7 @@ struct lpfc_vport { - struct dentry *debug_nodelist; - struct dentry *vport_debugfs_root; - struct lpfc_debugfs_trc *disc_trc; -- atomic_t disc_trc_cnt; -+ atomic_unchecked_t disc_trc_cnt; - #endif - uint8_t stat_data_enabled; - uint8_t stat_data_blocked; -@@ -826,8 +826,8 @@ struct lpfc_hba { - struct timer_list fabric_block_timer; - unsigned long bit_flags; - #define FABRIC_COMANDS_BLOCKED 0 -- atomic_t num_rsrc_err; -- atomic_t num_cmd_success; -+ atomic_unchecked_t num_rsrc_err; -+ atomic_unchecked_t num_cmd_success; - unsigned long last_rsrc_error_time; - unsigned long last_ramp_down_time; - unsigned long last_ramp_up_time; -@@ -841,7 +841,7 @@ struct lpfc_hba { - struct dentry *debug_dumpDif; /* BlockGuard BPL*/ - struct dentry *debug_slow_ring_trc; - struct lpfc_debugfs_trc *slow_ring_trc; -- atomic_t slow_ring_trc_cnt; -+ atomic_unchecked_t slow_ring_trc_cnt; - /* iDiag debugfs sub-directory */ - struct dentry *idiag_root; - struct dentry *idiag_pci_cfg; -diff -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_init.c 2011-08-23 21:47:56.000000000 -0400 -@@ -9923,8 +9923,10 @@ lpfc_init(void) - printk(LPFC_COPYRIGHT "\n"); - - if (lpfc_enable_npiv) { -- lpfc_transport_functions.vport_create = lpfc_vport_create; -- lpfc_transport_functions.vport_delete = lpfc_vport_delete; -+ pax_open_kernel(); -+ *(void **)&lpfc_transport_functions.vport_create = lpfc_vport_create; -+ *(void **)&lpfc_transport_functions.vport_delete = lpfc_vport_delete; -+ pax_close_kernel(); - } - lpfc_transport_template = - fc_attach_transport(&lpfc_transport_functions); -diff -urNp linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c ---- linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/lpfc/lpfc_scsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -297,7 +297,7 @@ lpfc_rampdown_queue_depth(struct lpfc_hb - uint32_t evt_posted; - - spin_lock_irqsave(&phba->hbalock, flags); -- atomic_inc(&phba->num_rsrc_err); -+ atomic_inc_unchecked(&phba->num_rsrc_err); - phba->last_rsrc_error_time = jiffies; - - if ((phba->last_ramp_down_time + QUEUE_RAMP_DOWN_INTERVAL) > jiffies) { -@@ -338,7 +338,7 @@ lpfc_rampup_queue_depth(struct lpfc_vpor - unsigned long flags; - struct lpfc_hba *phba = vport->phba; - uint32_t evt_posted; -- atomic_inc(&phba->num_cmd_success); -+ atomic_inc_unchecked(&phba->num_cmd_success); - - if (vport->cfg_lun_queue_depth <= queue_depth) - return; -@@ -382,8 +382,8 @@ lpfc_ramp_down_queue_handler(struct lpfc - unsigned long num_rsrc_err, num_cmd_success; - int i; - -- num_rsrc_err = atomic_read(&phba->num_rsrc_err); -- num_cmd_success = atomic_read(&phba->num_cmd_success); -+ num_rsrc_err = atomic_read_unchecked(&phba->num_rsrc_err); -+ num_cmd_success = atomic_read_unchecked(&phba->num_cmd_success); - - vports = lpfc_create_vport_work_array(phba); - if (vports != NULL) -@@ -403,8 +403,8 @@ lpfc_ramp_down_queue_handler(struct lpfc - } - } - lpfc_destroy_vport_work_array(phba, vports); -- atomic_set(&phba->num_rsrc_err, 0); -- atomic_set(&phba->num_cmd_success, 0); -+ atomic_set_unchecked(&phba->num_rsrc_err, 0); -+ atomic_set_unchecked(&phba->num_cmd_success, 0); - } - - /** -@@ -438,8 +438,8 @@ lpfc_ramp_up_queue_handler(struct lpfc_h - } - } - lpfc_destroy_vport_work_array(phba, vports); -- atomic_set(&phba->num_rsrc_err, 0); -- atomic_set(&phba->num_cmd_success, 0); -+ atomic_set_unchecked(&phba->num_rsrc_err, 0); -+ atomic_set_unchecked(&phba->num_cmd_success, 0); - } - - /** -diff -urNp linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c ---- linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/megaraid/megaraid_mbox.c 2011-08-23 21:48:14.000000000 -0400 -@@ -3503,6 +3503,8 @@ megaraid_cmm_register(adapter_t *adapter - int rval; - int i; - -+ pax_track_stack(); -+ - // Allocate memory for the base list of scb for management module. - adapter->uscb_list = kcalloc(MBOX_MAX_USER_CMDS, sizeof(scb_t), GFP_KERNEL); - -diff -urNp linux-3.0.4/drivers/scsi/osd/osd_initiator.c linux-3.0.4/drivers/scsi/osd/osd_initiator.c ---- linux-3.0.4/drivers/scsi/osd/osd_initiator.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/osd/osd_initiator.c 2011-08-23 21:48:14.000000000 -0400 -@@ -97,6 +97,8 @@ static int _osd_get_print_system_info(st - int nelem = ARRAY_SIZE(get_attrs), a = 0; - int ret; - -+ pax_track_stack(); -+ - or = osd_start_request(od, GFP_KERNEL); - if (!or) - return -ENOMEM; -diff -urNp linux-3.0.4/drivers/scsi/pmcraid.c linux-3.0.4/drivers/scsi/pmcraid.c ---- linux-3.0.4/drivers/scsi/pmcraid.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/pmcraid.c 2011-08-23 21:47:56.000000000 -0400 -@@ -201,8 +201,8 @@ static int pmcraid_slave_alloc(struct sc - res->scsi_dev = scsi_dev; - scsi_dev->hostdata = res; - res->change_detected = 0; -- atomic_set(&res->read_failures, 0); -- atomic_set(&res->write_failures, 0); -+ atomic_set_unchecked(&res->read_failures, 0); -+ atomic_set_unchecked(&res->write_failures, 0); - rc = 0; - } - spin_unlock_irqrestore(&pinstance->resource_lock, lock_flags); -@@ -2677,9 +2677,9 @@ static int pmcraid_error_handler(struct - - /* If this was a SCSI read/write command keep count of errors */ - if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_READ_CMD) -- atomic_inc(&res->read_failures); -+ atomic_inc_unchecked(&res->read_failures); - else if (SCSI_CMD_TYPE(scsi_cmd->cmnd[0]) == SCSI_WRITE_CMD) -- atomic_inc(&res->write_failures); -+ atomic_inc_unchecked(&res->write_failures); - - if (!RES_IS_GSCSI(res->cfg_entry) && - masked_ioasc != PMCRAID_IOASC_HW_DEVICE_BUS_STATUS_ERROR) { -@@ -3535,7 +3535,7 @@ static int pmcraid_queuecommand_lck( - * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses - * hrrq_id assigned here in queuecommand - */ -- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % -+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % - pinstance->num_hrrq; - cmd->cmd_done = pmcraid_io_done; - -@@ -3860,7 +3860,7 @@ static long pmcraid_ioctl_passthrough( - * block of scsi_cmd which is re-used (e.g. cancel/abort), which uses - * hrrq_id assigned here in queuecommand - */ -- ioarcb->hrrq_id = atomic_add_return(1, &(pinstance->last_message_id)) % -+ ioarcb->hrrq_id = atomic_add_return_unchecked(1, &(pinstance->last_message_id)) % - pinstance->num_hrrq; - - if (request_size) { -@@ -4498,7 +4498,7 @@ static void pmcraid_worker_function(stru - - pinstance = container_of(workp, struct pmcraid_instance, worker_q); - /* add resources only after host is added into system */ -- if (!atomic_read(&pinstance->expose_resources)) -+ if (!atomic_read_unchecked(&pinstance->expose_resources)) - return; - - fw_version = be16_to_cpu(pinstance->inq_data->fw_version); -@@ -5332,8 +5332,8 @@ static int __devinit pmcraid_init_instan - init_waitqueue_head(&pinstance->reset_wait_q); - - atomic_set(&pinstance->outstanding_cmds, 0); -- atomic_set(&pinstance->last_message_id, 0); -- atomic_set(&pinstance->expose_resources, 0); -+ atomic_set_unchecked(&pinstance->last_message_id, 0); -+ atomic_set_unchecked(&pinstance->expose_resources, 0); - - INIT_LIST_HEAD(&pinstance->free_res_q); - INIT_LIST_HEAD(&pinstance->used_res_q); -@@ -6048,7 +6048,7 @@ static int __devinit pmcraid_probe( - /* Schedule worker thread to handle CCN and take care of adding and - * removing devices to OS - */ -- atomic_set(&pinstance->expose_resources, 1); -+ atomic_set_unchecked(&pinstance->expose_resources, 1); - schedule_work(&pinstance->worker_q); - return rc; - -diff -urNp linux-3.0.4/drivers/scsi/pmcraid.h linux-3.0.4/drivers/scsi/pmcraid.h ---- linux-3.0.4/drivers/scsi/pmcraid.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/pmcraid.h 2011-08-23 21:47:56.000000000 -0400 -@@ -749,7 +749,7 @@ struct pmcraid_instance { - struct pmcraid_isr_param hrrq_vector[PMCRAID_NUM_MSIX_VECTORS]; - - /* Message id as filled in last fired IOARCB, used to identify HRRQ */ -- atomic_t last_message_id; -+ atomic_unchecked_t last_message_id; - - /* configuration table */ - struct pmcraid_config_table *cfg_table; -@@ -778,7 +778,7 @@ struct pmcraid_instance { - atomic_t outstanding_cmds; - - /* should add/delete resources to mid-layer now ?*/ -- atomic_t expose_resources; -+ atomic_unchecked_t expose_resources; - - - -@@ -814,8 +814,8 @@ struct pmcraid_resource_entry { - struct pmcraid_config_table_entry_ext cfg_entry_ext; - }; - struct scsi_device *scsi_dev; /* Link scsi_device structure */ -- atomic_t read_failures; /* count of failed READ commands */ -- atomic_t write_failures; /* count of failed WRITE commands */ -+ atomic_unchecked_t read_failures; /* count of failed READ commands */ -+ atomic_unchecked_t write_failures; /* count of failed WRITE commands */ - - /* To indicate add/delete/modify during CCN */ - u8 change_detected; -diff -urNp linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h ---- linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla2xxx/qla_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -2244,7 +2244,7 @@ struct isp_operations { - int (*get_flash_version) (struct scsi_qla_host *, void *); - int (*start_scsi) (srb_t *); - int (*abort_isp) (struct scsi_qla_host *); --}; -+} __no_const; - - /* MSI-X Support *************************************************************/ - -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_def.h 2011-08-23 21:47:56.000000000 -0400 -@@ -256,7 +256,7 @@ struct ddb_entry { - atomic_t retry_relogin_timer; /* Min Time between relogins - * (4000 only) */ - atomic_t relogin_timer; /* Max Time to wait for relogin to complete */ -- atomic_t relogin_retry_count; /* Num of times relogin has been -+ atomic_unchecked_t relogin_retry_count; /* Num of times relogin has been - * retried */ - - uint16_t port; -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_init.c 2011-08-23 21:47:56.000000000 -0400 -@@ -680,7 +680,7 @@ static struct ddb_entry * qla4xxx_alloc_ - ddb_entry->fw_ddb_index = fw_ddb_index; - atomic_set(&ddb_entry->retry_relogin_timer, INVALID_ENTRY); - atomic_set(&ddb_entry->relogin_timer, 0); -- atomic_set(&ddb_entry->relogin_retry_count, 0); -+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); - list_add_tail(&ddb_entry->list, &ha->ddb_list); - ha->fw_ddb_index_map[fw_ddb_index] = ddb_entry; -@@ -1433,7 +1433,7 @@ int qla4xxx_process_ddb_changed(struct s - if ((ddb_entry->fw_ddb_device_state == DDB_DS_SESSION_ACTIVE) && - (atomic_read(&ddb_entry->state) != DDB_STATE_ONLINE)) { - atomic_set(&ddb_entry->state, DDB_STATE_ONLINE); -- atomic_set(&ddb_entry->relogin_retry_count, 0); -+ atomic_set_unchecked(&ddb_entry->relogin_retry_count, 0); - atomic_set(&ddb_entry->relogin_timer, 0); - clear_bit(DF_RELOGIN, &ddb_entry->flags); - iscsi_unblock_session(ddb_entry->sess); -diff -urNp linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c ---- linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/qla4xxx/ql4_os.c 2011-08-23 21:47:56.000000000 -0400 -@@ -811,13 +811,13 @@ static void qla4xxx_timer(struct scsi_ql - ddb_entry->fw_ddb_device_state == - DDB_DS_SESSION_FAILED) { - /* Reset retry relogin timer */ -- atomic_inc(&ddb_entry->relogin_retry_count); -+ atomic_inc_unchecked(&ddb_entry->relogin_retry_count); - DEBUG2(printk("scsi%ld: ddb [%d] relogin" - " timed out-retrying" - " relogin (%d)\n", - ha->host_no, - ddb_entry->fw_ddb_index, -- atomic_read(&ddb_entry-> -+ atomic_read_unchecked(&ddb_entry-> - relogin_retry_count)) - ); - start_dpc++; -diff -urNp linux-3.0.4/drivers/scsi/scsi.c linux-3.0.4/drivers/scsi/scsi.c ---- linux-3.0.4/drivers/scsi/scsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -655,7 +655,7 @@ int scsi_dispatch_cmd(struct scsi_cmnd * - unsigned long timeout; - int rtn = 0; - -- atomic_inc(&cmd->device->iorequest_cnt); -+ atomic_inc_unchecked(&cmd->device->iorequest_cnt); - - /* check if the device is still usable */ - if (unlikely(cmd->device->sdev_state == SDEV_DEL)) { -diff -urNp linux-3.0.4/drivers/scsi/scsi_debug.c linux-3.0.4/drivers/scsi/scsi_debug.c ---- linux-3.0.4/drivers/scsi/scsi_debug.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_debug.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1493,6 +1493,8 @@ static int resp_mode_select(struct scsi_ - unsigned char arr[SDEBUG_MAX_MSELECT_SZ]; - unsigned char *cmd = (unsigned char *)scp->cmnd; - -+ pax_track_stack(); -+ - if ((errsts = check_readiness(scp, 1, devip))) - return errsts; - memset(arr, 0, sizeof(arr)); -@@ -1590,6 +1592,8 @@ static int resp_log_sense(struct scsi_cm - unsigned char arr[SDEBUG_MAX_LSENSE_SZ]; - unsigned char *cmd = (unsigned char *)scp->cmnd; - -+ pax_track_stack(); -+ - if ((errsts = check_readiness(scp, 1, devip))) - return errsts; - memset(arr, 0, sizeof(arr)); -diff -urNp linux-3.0.4/drivers/scsi/scsi_lib.c linux-3.0.4/drivers/scsi/scsi_lib.c ---- linux-3.0.4/drivers/scsi/scsi_lib.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_lib.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1412,7 +1412,7 @@ static void scsi_kill_request(struct req - shost = sdev->host; - scsi_init_cmd_errh(cmd); - cmd->result = DID_NO_CONNECT << 16; -- atomic_inc(&cmd->device->iorequest_cnt); -+ atomic_inc_unchecked(&cmd->device->iorequest_cnt); - - /* - * SCSI request completion path will do scsi_device_unbusy(), -@@ -1438,9 +1438,9 @@ static void scsi_softirq_done(struct req - - INIT_LIST_HEAD(&cmd->eh_entry); - -- atomic_inc(&cmd->device->iodone_cnt); -+ atomic_inc_unchecked(&cmd->device->iodone_cnt); - if (cmd->result) -- atomic_inc(&cmd->device->ioerr_cnt); -+ atomic_inc_unchecked(&cmd->device->ioerr_cnt); - - disposition = scsi_decide_disposition(cmd); - if (disposition != SUCCESS && -diff -urNp linux-3.0.4/drivers/scsi/scsi_sysfs.c linux-3.0.4/drivers/scsi/scsi_sysfs.c ---- linux-3.0.4/drivers/scsi/scsi_sysfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_sysfs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -622,7 +622,7 @@ show_iostat_##field(struct device *dev, - char *buf) \ - { \ - struct scsi_device *sdev = to_scsi_device(dev); \ -- unsigned long long count = atomic_read(&sdev->field); \ -+ unsigned long long count = atomic_read_unchecked(&sdev->field); \ - return snprintf(buf, 20, "0x%llx\n", count); \ - } \ - static DEVICE_ATTR(field, S_IRUGO, show_iostat_##field, NULL) -diff -urNp linux-3.0.4/drivers/scsi/scsi_transport_fc.c linux-3.0.4/drivers/scsi/scsi_transport_fc.c ---- linux-3.0.4/drivers/scsi/scsi_transport_fc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_fc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -484,7 +484,7 @@ static DECLARE_TRANSPORT_CLASS(fc_vport_ - * Netlink Infrastructure - */ - --static atomic_t fc_event_seq; -+static atomic_unchecked_t fc_event_seq; - - /** - * fc_get_event_number - Obtain the next sequential FC event number -@@ -497,7 +497,7 @@ static atomic_t fc_event_seq; - u32 - fc_get_event_number(void) - { -- return atomic_add_return(1, &fc_event_seq); -+ return atomic_add_return_unchecked(1, &fc_event_seq); - } - EXPORT_SYMBOL(fc_get_event_number); - -@@ -645,7 +645,7 @@ static __init int fc_transport_init(void - { - int error; - -- atomic_set(&fc_event_seq, 0); -+ atomic_set_unchecked(&fc_event_seq, 0); - - error = transport_class_register(&fc_host_class); - if (error) -@@ -835,7 +835,7 @@ static int fc_str_to_dev_loss(const char - char *cp; - - *val = simple_strtoul(buf, &cp, 0); -- if ((*cp && (*cp != '\n')) || (*val < 0)) -+ if (*cp && (*cp != '\n')) - return -EINVAL; - /* - * Check for overflow; dev_loss_tmo is u32 -diff -urNp linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c ---- linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_iscsi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -83,7 +83,7 @@ struct iscsi_internal { - struct device_attribute *session_attrs[ISCSI_SESSION_ATTRS + 1]; - }; - --static atomic_t iscsi_session_nr; /* sysfs session id for next new session */ -+static atomic_unchecked_t iscsi_session_nr; /* sysfs session id for next new session */ - static struct workqueue_struct *iscsi_eh_timer_workq; - - /* -@@ -761,7 +761,7 @@ int iscsi_add_session(struct iscsi_cls_s - int err; - - ihost = shost->shost_data; -- session->sid = atomic_add_return(1, &iscsi_session_nr); -+ session->sid = atomic_add_return_unchecked(1, &iscsi_session_nr); - - if (id == ISCSI_MAX_TARGET) { - for (id = 0; id < ISCSI_MAX_TARGET; id++) { -@@ -2200,7 +2200,7 @@ static __init int iscsi_transport_init(v - printk(KERN_INFO "Loading iSCSI transport class v%s.\n", - ISCSI_TRANSPORT_VERSION); - -- atomic_set(&iscsi_session_nr, 0); -+ atomic_set_unchecked(&iscsi_session_nr, 0); - - err = class_register(&iscsi_transport_class); - if (err) -diff -urNp linux-3.0.4/drivers/scsi/scsi_transport_srp.c linux-3.0.4/drivers/scsi/scsi_transport_srp.c ---- linux-3.0.4/drivers/scsi/scsi_transport_srp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/scsi_transport_srp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -33,7 +33,7 @@ - #include "scsi_transport_srp_internal.h" - - struct srp_host_attrs { -- atomic_t next_port_id; -+ atomic_unchecked_t next_port_id; - }; - #define to_srp_host_attrs(host) ((struct srp_host_attrs *)(host)->shost_data) - -@@ -62,7 +62,7 @@ static int srp_host_setup(struct transpo - struct Scsi_Host *shost = dev_to_shost(dev); - struct srp_host_attrs *srp_host = to_srp_host_attrs(shost); - -- atomic_set(&srp_host->next_port_id, 0); -+ atomic_set_unchecked(&srp_host->next_port_id, 0); - return 0; - } - -@@ -211,7 +211,7 @@ struct srp_rport *srp_rport_add(struct S - memcpy(rport->port_id, ids->port_id, sizeof(rport->port_id)); - rport->roles = ids->roles; - -- id = atomic_inc_return(&to_srp_host_attrs(shost)->next_port_id); -+ id = atomic_inc_return_unchecked(&to_srp_host_attrs(shost)->next_port_id); - dev_set_name(&rport->dev, "port-%d:%d", shost->host_no, id); - - transport_setup_device(&rport->dev); -diff -urNp linux-3.0.4/drivers/scsi/sg.c linux-3.0.4/drivers/scsi/sg.c ---- linux-3.0.4/drivers/scsi/sg.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/sg.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2310,7 +2310,7 @@ struct sg_proc_leaf { - const struct file_operations * fops; - }; - --static struct sg_proc_leaf sg_proc_leaf_arr[] = { -+static const struct sg_proc_leaf sg_proc_leaf_arr[] = { - {"allow_dio", &adio_fops}, - {"debug", &debug_fops}, - {"def_reserved_size", &dressz_fops}, -@@ -2325,7 +2325,7 @@ sg_proc_init(void) - { - int k, mask; - int num_leaves = ARRAY_SIZE(sg_proc_leaf_arr); -- struct sg_proc_leaf * leaf; -+ const struct sg_proc_leaf * leaf; - - sg_proc_sgp = proc_mkdir(sg_proc_sg_dirname, NULL); - if (!sg_proc_sgp) -diff -urNp linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c ---- linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/sym53c8xx_2/sym_glue.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1756,6 +1756,8 @@ static int __devinit sym2_probe(struct p - int do_iounmap = 0; - int do_disable_device = 1; - -+ pax_track_stack(); -+ - memset(&sym_dev, 0, sizeof(sym_dev)); - memset(&nvram, 0, sizeof(nvram)); - sym_dev.pdev = pdev; -diff -urNp linux-3.0.4/drivers/scsi/vmw_pvscsi.c linux-3.0.4/drivers/scsi/vmw_pvscsi.c ---- linux-3.0.4/drivers/scsi/vmw_pvscsi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/scsi/vmw_pvscsi.c 2011-08-23 21:48:14.000000000 -0400 -@@ -447,6 +447,8 @@ static void pvscsi_setup_all_rings(const - dma_addr_t base; - unsigned i; - -+ pax_track_stack(); -+ - cmd.ringsStatePPN = adapter->ringStatePA >> PAGE_SHIFT; - cmd.reqRingNumPages = adapter->req_pages; - cmd.cmpRingNumPages = adapter->cmp_pages; -diff -urNp linux-3.0.4/drivers/spi/spi.c linux-3.0.4/drivers/spi/spi.c ---- linux-3.0.4/drivers/spi/spi.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/spi/spi.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1023,7 +1023,7 @@ int spi_bus_unlock(struct spi_master *ma - EXPORT_SYMBOL_GPL(spi_bus_unlock); - - /* portable code must never pass more than 32 bytes */ --#define SPI_BUFSIZ max(32,SMP_CACHE_BYTES) -+#define SPI_BUFSIZ max(32UL,SMP_CACHE_BYTES) - - static u8 *buf; - -diff -urNp linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c ---- linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/staging/ath6kl/os/linux/ar6000_drv.c 2011-08-23 21:48:14.000000000 -0400 -@@ -362,7 +362,7 @@ static struct ar_cookie s_ar_cookie_mem[ - (((ar)->arTargetType == TARGET_TYPE_AR6003) ? AR6003_HOST_INTEREST_ITEM_ADDRESS(item) : 0)) - - --static struct net_device_ops ar6000_netdev_ops = { -+static net_device_ops_no_const ar6000_netdev_ops = { - .ndo_init = NULL, - .ndo_open = ar6000_open, - .ndo_stop = ar6000_close, -diff -urNp linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h ---- linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/ath6kl/os/linux/include/ar6k_pal.h 2011-08-23 21:47:56.000000000 -0400 -@@ -30,7 +30,7 @@ typedef bool (*ar6k_pal_recv_pkt_t)(void - typedef struct ar6k_pal_config_s - { - ar6k_pal_recv_pkt_t fpar6k_pal_recv_pkt; --}ar6k_pal_config_t; -+} __no_const ar6k_pal_config_t; - - void register_pal_cb(ar6k_pal_config_t *palConfig_p); - #endif /* _AR6K_PAL_H_ */ -diff -urNp linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c ---- linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/brcmfmac/dhd_linux.c 2011-08-23 21:47:56.000000000 -0400 -@@ -853,14 +853,14 @@ static void dhd_op_if(dhd_if_t *ifp) - free_netdev(ifp->net); - } - /* Allocate etherdev, including space for private structure */ -- ifp->net = alloc_etherdev(sizeof(dhd)); -+ ifp->net = alloc_etherdev(sizeof(*dhd)); - if (!ifp->net) { - DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); - ret = -ENOMEM; - } - if (ret == 0) { - strcpy(ifp->net->name, ifp->name); -- memcpy(netdev_priv(ifp->net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(ifp->net), dhd, sizeof(*dhd)); - err = dhd_net_attach(&dhd->pub, ifp->idx); - if (err != 0) { - DHD_ERROR(("%s: dhd_net_attach failed, " -@@ -1872,7 +1872,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - strcpy(nv_path, nvram_path); - - /* Allocate etherdev, including space for private structure */ -- net = alloc_etherdev(sizeof(dhd)); -+ net = alloc_etherdev(sizeof(*dhd)); - if (!net) { - DHD_ERROR(("%s: OOM - alloc_etherdev\n", __func__)); - goto fail; -@@ -1888,7 +1888,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - /* - * Save the dhd_info into the priv - */ -- memcpy(netdev_priv(net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(net), dhd, sizeof(*dhd)); - - /* Set network interface name if it was provided as module parameter */ - if (iface_name[0]) { -@@ -2004,7 +2004,7 @@ dhd_pub_t *dhd_attach(struct dhd_bus *bu - /* - * Save the dhd_info into the priv - */ -- memcpy(netdev_priv(net), &dhd, sizeof(dhd)); -+ memcpy(netdev_priv(net), dhd, sizeof(*dhd)); - - #if defined(CUSTOMER_HW2) && defined(CONFIG_WIFI_CONTROL_FUNC) - g_bus = bus; -diff -urNp linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h ---- linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/brcmsmac/phy/wlc_phy_int.h 2011-08-23 21:47:56.000000000 -0400 -@@ -593,7 +593,7 @@ struct phy_func_ptr { - initfn_t carrsuppr; - rxsigpwrfn_t rxsigpwr; - detachfn_t detach; --}; -+} __no_const; - typedef struct phy_func_ptr phy_func_ptr_t; - - struct phy_info { -diff -urNp linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h ---- linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/brcm80211/include/bcmsdh.h 2011-08-23 21:47:56.000000000 -0400 -@@ -185,7 +185,7 @@ typedef struct { - u16 func, uint bustype, void *regsva, void *param); - /* detach from device */ - void (*detach) (void *ch); --} bcmsdh_driver_t; -+} __no_const bcmsdh_driver_t; - - /* platform specific/high level functions */ - extern int bcmsdh_register(bcmsdh_driver_t *driver); -diff -urNp linux-3.0.4/drivers/staging/et131x/et1310_tx.c linux-3.0.4/drivers/staging/et131x/et1310_tx.c ---- linux-3.0.4/drivers/staging/et131x/et1310_tx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/et131x/et1310_tx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -635,11 +635,11 @@ inline void et131x_free_send_packet(stru - struct net_device_stats *stats = &etdev->net_stats; - - if (tcb->flags & fMP_DEST_BROAD) -- atomic_inc(&etdev->Stats.brdcstxmt); -+ atomic_inc_unchecked(&etdev->Stats.brdcstxmt); - else if (tcb->flags & fMP_DEST_MULTI) -- atomic_inc(&etdev->Stats.multixmt); -+ atomic_inc_unchecked(&etdev->Stats.multixmt); - else -- atomic_inc(&etdev->Stats.unixmt); -+ atomic_inc_unchecked(&etdev->Stats.unixmt); - - if (tcb->skb) { - stats->tx_bytes += tcb->skb->len; -diff -urNp linux-3.0.4/drivers/staging/et131x/et131x_adapter.h linux-3.0.4/drivers/staging/et131x/et131x_adapter.h ---- linux-3.0.4/drivers/staging/et131x/et131x_adapter.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/et131x/et131x_adapter.h 2011-08-23 21:47:56.000000000 -0400 -@@ -110,11 +110,11 @@ typedef struct _ce_stats_t { - * operations - */ - u32 unircv; /* # multicast packets received */ -- atomic_t unixmt; /* # multicast packets for Tx */ -+ atomic_unchecked_t unixmt; /* # multicast packets for Tx */ - u32 multircv; /* # multicast packets received */ -- atomic_t multixmt; /* # multicast packets for Tx */ -+ atomic_unchecked_t multixmt; /* # multicast packets for Tx */ - u32 brdcstrcv; /* # broadcast packets received */ -- atomic_t brdcstxmt; /* # broadcast packets for Tx */ -+ atomic_unchecked_t brdcstxmt; /* # broadcast packets for Tx */ - u32 norcvbuf; /* # Rx packets discarded */ - u32 noxmtbuf; /* # Tx packets discarded */ - -diff -urNp linux-3.0.4/drivers/staging/hv/channel.c linux-3.0.4/drivers/staging/hv/channel.c ---- linux-3.0.4/drivers/staging/hv/channel.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/channel.c 2011-08-23 21:47:56.000000000 -0400 -@@ -433,8 +433,8 @@ int vmbus_establish_gpadl(struct vmbus_c - int ret = 0; - int t; - -- next_gpadl_handle = atomic_read(&vmbus_connection.next_gpadl_handle); -- atomic_inc(&vmbus_connection.next_gpadl_handle); -+ next_gpadl_handle = atomic_read_unchecked(&vmbus_connection.next_gpadl_handle); -+ atomic_inc_unchecked(&vmbus_connection.next_gpadl_handle); - - ret = create_gpadl_header(kbuffer, size, &msginfo, &msgcount); - if (ret) -diff -urNp linux-3.0.4/drivers/staging/hv/hv.c linux-3.0.4/drivers/staging/hv/hv.c ---- linux-3.0.4/drivers/staging/hv/hv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -132,7 +132,7 @@ static u64 do_hypercall(u64 control, voi - u64 output_address = (output) ? virt_to_phys(output) : 0; - u32 output_address_hi = output_address >> 32; - u32 output_address_lo = output_address & 0xFFFFFFFF; -- volatile void *hypercall_page = hv_context.hypercall_page; -+ volatile void *hypercall_page = ktva_ktla(hv_context.hypercall_page); - - __asm__ __volatile__ ("call *%8" : "=d"(hv_status_hi), - "=a"(hv_status_lo) : "d" (control_hi), -diff -urNp linux-3.0.4/drivers/staging/hv/hv_mouse.c linux-3.0.4/drivers/staging/hv/hv_mouse.c ---- linux-3.0.4/drivers/staging/hv/hv_mouse.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hv_mouse.c 2011-08-23 21:47:56.000000000 -0400 -@@ -879,8 +879,10 @@ static void reportdesc_callback(struct h - if (hid_dev) { - DPRINT_INFO(INPUTVSC_DRV, "hid_device created"); - -- hid_dev->ll_driver->open = mousevsc_hid_open; -- hid_dev->ll_driver->close = mousevsc_hid_close; -+ pax_open_kernel(); -+ *(void **)&hid_dev->ll_driver->open = mousevsc_hid_open; -+ *(void **)&hid_dev->ll_driver->close = mousevsc_hid_close; -+ pax_close_kernel(); - - hid_dev->bus = BUS_VIRTUAL; - hid_dev->vendor = input_device_ctx->device_info.vendor; -diff -urNp linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h ---- linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/hyperv_vmbus.h 2011-08-23 21:47:56.000000000 -0400 -@@ -559,7 +559,7 @@ enum vmbus_connect_state { - struct vmbus_connection { - enum vmbus_connect_state conn_state; - -- atomic_t next_gpadl_handle; -+ atomic_unchecked_t next_gpadl_handle; - - /* - * Represents channel interrupts. Each bit position represents a -diff -urNp linux-3.0.4/drivers/staging/hv/rndis_filter.c linux-3.0.4/drivers/staging/hv/rndis_filter.c ---- linux-3.0.4/drivers/staging/hv/rndis_filter.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/rndis_filter.c 2011-08-23 21:47:56.000000000 -0400 -@@ -43,7 +43,7 @@ struct rndis_device { - - enum rndis_device_state state; - u32 link_stat; -- atomic_t new_req_id; -+ atomic_unchecked_t new_req_id; - - spinlock_t request_lock; - struct list_head req_list; -@@ -117,7 +117,7 @@ static struct rndis_request *get_rndis_r - * template - */ - set = &rndis_msg->msg.set_req; -- set->req_id = atomic_inc_return(&dev->new_req_id); -+ set->req_id = atomic_inc_return_unchecked(&dev->new_req_id); - - /* Add to the request list */ - spin_lock_irqsave(&dev->request_lock, flags); -@@ -637,7 +637,7 @@ static void rndis_filter_halt_device(str - - /* Setup the rndis set */ - halt = &request->request_msg.msg.halt_req; -- halt->req_id = atomic_inc_return(&dev->new_req_id); -+ halt->req_id = atomic_inc_return_unchecked(&dev->new_req_id); - - /* Ignore return since this msg is optional. */ - rndis_filter_send_request(dev, request); -diff -urNp linux-3.0.4/drivers/staging/hv/vmbus_drv.c linux-3.0.4/drivers/staging/hv/vmbus_drv.c ---- linux-3.0.4/drivers/staging/hv/vmbus_drv.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/hv/vmbus_drv.c 2011-08-23 21:47:56.000000000 -0400 -@@ -668,11 +668,11 @@ int vmbus_child_device_register(struct h - { - int ret = 0; - -- static atomic_t device_num = ATOMIC_INIT(0); -+ static atomic_unchecked_t device_num = ATOMIC_INIT(0); - - /* Set the device name. Otherwise, device_register() will fail. */ - dev_set_name(&child_device_obj->device, "vmbus_0_%d", -- atomic_inc_return(&device_num)); -+ atomic_inc_return_unchecked(&device_num)); - - /* The new device belongs to this bus */ - child_device_obj->device.bus = &hv_bus; /* device->dev.bus; */ -diff -urNp linux-3.0.4/drivers/staging/iio/ring_generic.h linux-3.0.4/drivers/staging/iio/ring_generic.h ---- linux-3.0.4/drivers/staging/iio/ring_generic.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/iio/ring_generic.h 2011-08-23 21:47:56.000000000 -0400 -@@ -62,7 +62,7 @@ struct iio_ring_access_funcs { - - int (*is_enabled)(struct iio_ring_buffer *ring); - int (*enable)(struct iio_ring_buffer *ring); --}; -+} __no_const; - - struct iio_ring_setup_ops { - int (*preenable)(struct iio_dev *); -diff -urNp linux-3.0.4/drivers/staging/octeon/ethernet.c linux-3.0.4/drivers/staging/octeon/ethernet.c ---- linux-3.0.4/drivers/staging/octeon/ethernet.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/octeon/ethernet.c 2011-08-23 21:47:56.000000000 -0400 -@@ -258,11 +258,11 @@ static struct net_device_stats *cvm_oct_ - * since the RX tasklet also increments it. - */ - #ifdef CONFIG_64BIT -- atomic64_add(rx_status.dropped_packets, -- (atomic64_t *)&priv->stats.rx_dropped); -+ atomic64_add_unchecked(rx_status.dropped_packets, -+ (atomic64_unchecked_t *)&priv->stats.rx_dropped); - #else -- atomic_add(rx_status.dropped_packets, -- (atomic_t *)&priv->stats.rx_dropped); -+ atomic_add_unchecked(rx_status.dropped_packets, -+ (atomic_unchecked_t *)&priv->stats.rx_dropped); - #endif - } - -diff -urNp linux-3.0.4/drivers/staging/octeon/ethernet-rx.c linux-3.0.4/drivers/staging/octeon/ethernet-rx.c ---- linux-3.0.4/drivers/staging/octeon/ethernet-rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/octeon/ethernet-rx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -417,11 +417,11 @@ static int cvm_oct_napi_poll(struct napi - /* Increment RX stats for virtual ports */ - if (work->ipprt >= CVMX_PIP_NUM_INPUT_PORTS) { - #ifdef CONFIG_64BIT -- atomic64_add(1, (atomic64_t *)&priv->stats.rx_packets); -- atomic64_add(skb->len, (atomic64_t *)&priv->stats.rx_bytes); -+ atomic64_add_unchecked(1, (atomic64_unchecked_t *)&priv->stats.rx_packets); -+ atomic64_add_unchecked(skb->len, (atomic64_unchecked_t *)&priv->stats.rx_bytes); - #else -- atomic_add(1, (atomic_t *)&priv->stats.rx_packets); -- atomic_add(skb->len, (atomic_t *)&priv->stats.rx_bytes); -+ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_packets); -+ atomic_add_unchecked(skb->len, (atomic_unchecked_t *)&priv->stats.rx_bytes); - #endif - } - netif_receive_skb(skb); -@@ -433,9 +433,9 @@ static int cvm_oct_napi_poll(struct napi - dev->name); - */ - #ifdef CONFIG_64BIT -- atomic64_add(1, (atomic64_t *)&priv->stats.rx_dropped); -+ atomic64_unchecked_add(1, (atomic64_unchecked_t *)&priv->stats.rx_dropped); - #else -- atomic_add(1, (atomic_t *)&priv->stats.rx_dropped); -+ atomic_add_unchecked(1, (atomic_unchecked_t *)&priv->stats.rx_dropped); - #endif - dev_kfree_skb_irq(skb); - } -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/inode.c linux-3.0.4/drivers/staging/pohmelfs/inode.c ---- linux-3.0.4/drivers/staging/pohmelfs/inode.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/inode.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1856,7 +1856,7 @@ static int pohmelfs_fill_super(struct su - mutex_init(&psb->mcache_lock); - psb->mcache_root = RB_ROOT; - psb->mcache_timeout = msecs_to_jiffies(5000); -- atomic_long_set(&psb->mcache_gen, 0); -+ atomic_long_set_unchecked(&psb->mcache_gen, 0); - - psb->trans_max_pages = 100; - -@@ -1871,7 +1871,7 @@ static int pohmelfs_fill_super(struct su - INIT_LIST_HEAD(&psb->crypto_ready_list); - INIT_LIST_HEAD(&psb->crypto_active_list); - -- atomic_set(&psb->trans_gen, 1); -+ atomic_set_unchecked(&psb->trans_gen, 1); - atomic_long_set(&psb->total_inodes, 0); - - mutex_init(&psb->state_lock); -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/mcache.c linux-3.0.4/drivers/staging/pohmelfs/mcache.c ---- linux-3.0.4/drivers/staging/pohmelfs/mcache.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/mcache.c 2011-08-23 21:47:56.000000000 -0400 -@@ -121,7 +121,7 @@ struct pohmelfs_mcache *pohmelfs_mcache_ - m->data = data; - m->start = start; - m->size = size; -- m->gen = atomic_long_inc_return(&psb->mcache_gen); -+ m->gen = atomic_long_inc_return_unchecked(&psb->mcache_gen); - - mutex_lock(&psb->mcache_lock); - err = pohmelfs_mcache_insert(psb, m); -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/netfs.h linux-3.0.4/drivers/staging/pohmelfs/netfs.h ---- linux-3.0.4/drivers/staging/pohmelfs/netfs.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/netfs.h 2011-08-23 21:47:56.000000000 -0400 -@@ -571,14 +571,14 @@ struct pohmelfs_config; - struct pohmelfs_sb { - struct rb_root mcache_root; - struct mutex mcache_lock; -- atomic_long_t mcache_gen; -+ atomic_long_unchecked_t mcache_gen; - unsigned long mcache_timeout; - - unsigned int idx; - - unsigned int trans_retries; - -- atomic_t trans_gen; -+ atomic_unchecked_t trans_gen; - - unsigned int crypto_attached_size; - unsigned int crypto_align_size; -diff -urNp linux-3.0.4/drivers/staging/pohmelfs/trans.c linux-3.0.4/drivers/staging/pohmelfs/trans.c ---- linux-3.0.4/drivers/staging/pohmelfs/trans.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/pohmelfs/trans.c 2011-08-23 21:47:56.000000000 -0400 -@@ -492,7 +492,7 @@ int netfs_trans_finish(struct netfs_tran - int err; - struct netfs_cmd *cmd = t->iovec.iov_base; - -- t->gen = atomic_inc_return(&psb->trans_gen); -+ t->gen = atomic_inc_return_unchecked(&psb->trans_gen); - - cmd->size = t->iovec.iov_len - sizeof(struct netfs_cmd) + - t->attached_size + t->attached_pages * sizeof(struct netfs_cmd); -diff -urNp linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h ---- linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/rtl8712/rtl871x_io.h 2011-08-23 21:47:56.000000000 -0400 -@@ -83,7 +83,7 @@ struct _io_ops { - u8 *pmem); - u32 (*_write_port)(struct intf_hdl *pintfhdl, u32 addr, u32 cnt, - u8 *pmem); --}; -+} __no_const; - - struct io_req { - struct list_head list; -diff -urNp linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c ---- linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/sbe-2t3e3/netdev.c 2011-08-24 18:21:41.000000000 -0400 -@@ -51,7 +51,7 @@ int t3e3_ioctl(struct net_device *dev, s - t3e3_if_config(sc, cmd_2t3e3, (char *)¶m, &resp, &rlen); - - if (rlen) -- if (copy_to_user(data, &resp, rlen)) -+ if (rlen > sizeof resp || copy_to_user(data, &resp, rlen)) - return -EFAULT; - - return 0; -diff -urNp linux-3.0.4/drivers/staging/tty/stallion.c linux-3.0.4/drivers/staging/tty/stallion.c ---- linux-3.0.4/drivers/staging/tty/stallion.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/tty/stallion.c 2011-08-23 21:48:14.000000000 -0400 -@@ -2406,6 +2406,8 @@ static int stl_getportstruct(struct stlp - struct stlport stl_dummyport; - struct stlport *portp; - -+ pax_track_stack(); -+ - if (copy_from_user(&stl_dummyport, arg, sizeof(struct stlport))) - return -EFAULT; - portp = stl_getport(stl_dummyport.brdnr, stl_dummyport.panelnr, -diff -urNp linux-3.0.4/drivers/staging/usbip/usbip_common.h linux-3.0.4/drivers/staging/usbip/usbip_common.h ---- linux-3.0.4/drivers/staging/usbip/usbip_common.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/usbip_common.h 2011-08-23 21:47:56.000000000 -0400 -@@ -315,7 +315,7 @@ struct usbip_device { - void (*shutdown)(struct usbip_device *); - void (*reset)(struct usbip_device *); - void (*unusable)(struct usbip_device *); -- } eh_ops; -+ } __no_const eh_ops; - }; - - void usbip_pack_pdu(struct usbip_header *pdu, struct urb *urb, int cmd, -diff -urNp linux-3.0.4/drivers/staging/usbip/vhci.h linux-3.0.4/drivers/staging/usbip/vhci.h ---- linux-3.0.4/drivers/staging/usbip/vhci.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci.h 2011-08-23 21:47:56.000000000 -0400 -@@ -94,7 +94,7 @@ struct vhci_hcd { - unsigned resuming:1; - unsigned long re_timeout; - -- atomic_t seqnum; -+ atomic_unchecked_t seqnum; - - /* - * NOTE: -diff -urNp linux-3.0.4/drivers/staging/usbip/vhci_hcd.c linux-3.0.4/drivers/staging/usbip/vhci_hcd.c ---- linux-3.0.4/drivers/staging/usbip/vhci_hcd.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci_hcd.c 2011-08-23 21:47:56.000000000 -0400 -@@ -511,7 +511,7 @@ static void vhci_tx_urb(struct urb *urb) - return; - } - -- priv->seqnum = atomic_inc_return(&the_controller->seqnum); -+ priv->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); - if (priv->seqnum == 0xffff) - dev_info(&urb->dev->dev, "seqnum max\n"); - -@@ -765,7 +765,7 @@ static int vhci_urb_dequeue(struct usb_h - return -ENOMEM; - } - -- unlink->seqnum = atomic_inc_return(&the_controller->seqnum); -+ unlink->seqnum = atomic_inc_return_unchecked(&the_controller->seqnum); - if (unlink->seqnum == 0xffff) - pr_info("seqnum max\n"); - -@@ -955,7 +955,7 @@ static int vhci_start(struct usb_hcd *hc - vdev->rhport = rhport; - } - -- atomic_set(&vhci->seqnum, 0); -+ atomic_set_unchecked(&vhci->seqnum, 0); - spin_lock_init(&vhci->lock); - - hcd->power_budget = 0; /* no limit */ -diff -urNp linux-3.0.4/drivers/staging/usbip/vhci_rx.c linux-3.0.4/drivers/staging/usbip/vhci_rx.c ---- linux-3.0.4/drivers/staging/usbip/vhci_rx.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/usbip/vhci_rx.c 2011-08-23 21:47:56.000000000 -0400 -@@ -76,7 +76,7 @@ static void vhci_recv_ret_submit(struct - if (!urb) { - pr_err("cannot find a urb of seqnum %u\n", pdu->base.seqnum); - pr_info("max seqnum %d\n", -- atomic_read(&the_controller->seqnum)); -+ atomic_read_unchecked(&the_controller->seqnum)); - usbip_event_add(ud, VDEV_EVENT_ERROR_TCP); - return; - } -diff -urNp linux-3.0.4/drivers/staging/vt6655/hostap.c linux-3.0.4/drivers/staging/vt6655/hostap.c ---- linux-3.0.4/drivers/staging/vt6655/hostap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/vt6655/hostap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -79,14 +79,13 @@ static int msglevel - * - */ - -+static net_device_ops_no_const apdev_netdev_ops; -+ - static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - { - PSDevice apdev_priv; - struct net_device *dev = pDevice->dev; - int ret; -- const struct net_device_ops apdev_netdev_ops = { -- .ndo_start_xmit = pDevice->tx_80211, -- }; - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); - -@@ -98,6 +97,8 @@ static int hostap_enable_hostapd(PSDevic - *apdev_priv = *pDevice; - memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); - -+ /* only half broken now */ -+ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; - pDevice->apdev->netdev_ops = &apdev_netdev_ops; - - pDevice->apdev->type = ARPHRD_IEEE80211; -diff -urNp linux-3.0.4/drivers/staging/vt6656/hostap.c linux-3.0.4/drivers/staging/vt6656/hostap.c ---- linux-3.0.4/drivers/staging/vt6656/hostap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/vt6656/hostap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -80,14 +80,13 @@ static int msglevel - * - */ - -+static net_device_ops_no_const apdev_netdev_ops; -+ - static int hostap_enable_hostapd(PSDevice pDevice, int rtnl_locked) - { - PSDevice apdev_priv; - struct net_device *dev = pDevice->dev; - int ret; -- const struct net_device_ops apdev_netdev_ops = { -- .ndo_start_xmit = pDevice->tx_80211, -- }; - - DBG_PRT(MSG_LEVEL_DEBUG, KERN_INFO "%s: Enabling hostapd mode\n", dev->name); - -@@ -99,6 +98,8 @@ static int hostap_enable_hostapd(PSDevic - *apdev_priv = *pDevice; - memcpy(pDevice->apdev->dev_addr, dev->dev_addr, ETH_ALEN); - -+ /* only half broken now */ -+ apdev_netdev_ops.ndo_start_xmit = pDevice->tx_80211; - pDevice->apdev->netdev_ops = &apdev_netdev_ops; - - pDevice->apdev->type = ARPHRD_IEEE80211; -diff -urNp linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c ---- linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/wlan-ng/hfa384x_usb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -204,7 +204,7 @@ static void unlocked_usbctlx_complete(hf - - struct usbctlx_completor { - int (*complete) (struct usbctlx_completor *); --}; -+} __no_const; - - static int - hfa384x_usbctlx_complete_sync(hfa384x_t *hw, -diff -urNp linux-3.0.4/drivers/staging/zcache/tmem.c linux-3.0.4/drivers/staging/zcache/tmem.c ---- linux-3.0.4/drivers/staging/zcache/tmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/zcache/tmem.c 2011-08-23 21:47:56.000000000 -0400 -@@ -39,7 +39,7 @@ - * A tmem host implementation must use this function to register callbacks - * for memory allocation. - */ --static struct tmem_hostops tmem_hostops; -+static tmem_hostops_no_const tmem_hostops; - - static void tmem_objnode_tree_init(void); - -@@ -53,7 +53,7 @@ void tmem_register_hostops(struct tmem_h - * A tmem host implementation must use this function to register - * callbacks for a page-accessible memory (PAM) implementation - */ --static struct tmem_pamops tmem_pamops; -+static tmem_pamops_no_const tmem_pamops; - - void tmem_register_pamops(struct tmem_pamops *m) - { -diff -urNp linux-3.0.4/drivers/staging/zcache/tmem.h linux-3.0.4/drivers/staging/zcache/tmem.h ---- linux-3.0.4/drivers/staging/zcache/tmem.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/staging/zcache/tmem.h 2011-08-23 21:47:56.000000000 -0400 -@@ -171,6 +171,7 @@ struct tmem_pamops { - int (*get_data)(struct page *, void *, struct tmem_pool *); - void (*free)(void *, struct tmem_pool *); - }; -+typedef struct tmem_pamops __no_const tmem_pamops_no_const; - extern void tmem_register_pamops(struct tmem_pamops *m); - - /* memory allocation methods provided by the host implementation */ -@@ -180,6 +181,7 @@ struct tmem_hostops { - struct tmem_objnode *(*objnode_alloc)(struct tmem_pool *); - void (*objnode_free)(struct tmem_objnode *, struct tmem_pool *); - }; -+typedef struct tmem_hostops __no_const tmem_hostops_no_const; - extern void tmem_register_hostops(struct tmem_hostops *m); - - /* core tmem accessor functions */ -diff -urNp linux-3.0.4/drivers/target/target_core_alua.c linux-3.0.4/drivers/target/target_core_alua.c ---- linux-3.0.4/drivers/target/target_core_alua.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_alua.c 2011-08-23 21:48:14.000000000 -0400 -@@ -675,6 +675,8 @@ static int core_alua_update_tpg_primary_ - char path[ALUA_METADATA_PATH_LEN]; - int len; - -+ pax_track_stack(); -+ - memset(path, 0, ALUA_METADATA_PATH_LEN); - - len = snprintf(md_buf, tg_pt_gp->tg_pt_gp_md_buf_len, -@@ -938,6 +940,8 @@ static int core_alua_update_tpg_secondar - char path[ALUA_METADATA_PATH_LEN], wwn[ALUA_SECONDARY_METADATA_WWN_LEN]; - int len; - -+ pax_track_stack(); -+ - memset(path, 0, ALUA_METADATA_PATH_LEN); - memset(wwn, 0, ALUA_SECONDARY_METADATA_WWN_LEN); - -diff -urNp linux-3.0.4/drivers/target/target_core_cdb.c linux-3.0.4/drivers/target/target_core_cdb.c ---- linux-3.0.4/drivers/target/target_core_cdb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_cdb.c 2011-08-23 21:48:14.000000000 -0400 -@@ -838,6 +838,8 @@ target_emulate_modesense(struct se_cmd * - int length = 0; - unsigned char buf[SE_MODE_PAGE_BUF]; - -+ pax_track_stack(); -+ - memset(buf, 0, SE_MODE_PAGE_BUF); - - switch (cdb[2] & 0x3f) { -diff -urNp linux-3.0.4/drivers/target/target_core_configfs.c linux-3.0.4/drivers/target/target_core_configfs.c ---- linux-3.0.4/drivers/target/target_core_configfs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_configfs.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1276,6 +1276,8 @@ static ssize_t target_core_dev_pr_show_a - ssize_t len = 0; - int reg_count = 0, prf_isid; - -+ pax_track_stack(); -+ - if (!(su_dev->se_dev_ptr)) - return -ENODEV; - -diff -urNp linux-3.0.4/drivers/target/target_core_pr.c linux-3.0.4/drivers/target/target_core_pr.c ---- linux-3.0.4/drivers/target/target_core_pr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_pr.c 2011-08-23 21:48:14.000000000 -0400 -@@ -918,6 +918,8 @@ static int __core_scsi3_check_aptpl_regi - unsigned char t_port[PR_APTPL_MAX_TPORT_LEN]; - u16 tpgt; - -+ pax_track_stack(); -+ - memset(i_port, 0, PR_APTPL_MAX_IPORT_LEN); - memset(t_port, 0, PR_APTPL_MAX_TPORT_LEN); - /* -@@ -1861,6 +1863,8 @@ static int __core_scsi3_update_aptpl_buf - ssize_t len = 0; - int reg_count = 0; - -+ pax_track_stack(); -+ - memset(buf, 0, pr_aptpl_buf_len); - /* - * Called to clear metadata once APTPL has been deactivated. -@@ -1983,6 +1987,8 @@ static int __core_scsi3_write_aptpl_to_f - char path[512]; - int ret; - -+ pax_track_stack(); -+ - memset(iov, 0, sizeof(struct iovec)); - memset(path, 0, 512); - -diff -urNp linux-3.0.4/drivers/target/target_core_tmr.c linux-3.0.4/drivers/target/target_core_tmr.c ---- linux-3.0.4/drivers/target/target_core_tmr.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_tmr.c 2011-08-23 21:47:56.000000000 -0400 -@@ -269,7 +269,7 @@ int core_tmr_lun_reset( - CMD_TFO(cmd)->get_task_tag(cmd), cmd->pr_res_key, - T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), - atomic_read(&T_TASK(cmd)->t_transport_sent)); -@@ -311,7 +311,7 @@ int core_tmr_lun_reset( - DEBUG_LR("LUN_RESET: got t_transport_active = 1 for" - " task: %p, t_fe_count: %d dev: %p\n", task, - fe_count, dev); -- atomic_set(&T_TASK(cmd)->t_transport_aborted, 1); -+ atomic_set_unchecked(&T_TASK(cmd)->t_transport_aborted, 1); - spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, - flags); - core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); -@@ -321,7 +321,7 @@ int core_tmr_lun_reset( - } - DEBUG_LR("LUN_RESET: Got t_transport_active = 0 for task: %p," - " t_fe_count: %d dev: %p\n", task, fe_count, dev); -- atomic_set(&T_TASK(cmd)->t_transport_aborted, 1); -+ atomic_set_unchecked(&T_TASK(cmd)->t_transport_aborted, 1); - spin_unlock_irqrestore(&T_TASK(cmd)->t_state_lock, flags); - core_tmr_handle_tas_abort(tmr_nacl, cmd, tas, fe_count); - -diff -urNp linux-3.0.4/drivers/target/target_core_transport.c linux-3.0.4/drivers/target/target_core_transport.c ---- linux-3.0.4/drivers/target/target_core_transport.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/target/target_core_transport.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1681,7 +1681,7 @@ struct se_device *transport_add_device_t - - dev->queue_depth = dev_limits->queue_depth; - atomic_set(&dev->depth_left, dev->queue_depth); -- atomic_set(&dev->dev_ordered_id, 0); -+ atomic_set_unchecked(&dev->dev_ordered_id, 0); - - se_dev_set_default_attribs(dev, dev_limits); - -@@ -1882,7 +1882,7 @@ static int transport_check_alloc_task_at - * Used to determine when ORDERED commands should go from - * Dormant to Active status. - */ -- cmd->se_ordered_id = atomic_inc_return(&SE_DEV(cmd)->dev_ordered_id); -+ cmd->se_ordered_id = atomic_inc_return_unchecked(&SE_DEV(cmd)->dev_ordered_id); - smp_mb__after_atomic_inc(); - DEBUG_STA("Allocated se_ordered_id: %u for Task Attr: 0x%02x on %s\n", - cmd->se_ordered_id, cmd->sam_task_attr, -@@ -2169,7 +2169,7 @@ static void transport_generic_request_fa - " t_transport_active: %d t_transport_stop: %d" - " t_transport_sent: %d\n", T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_task_cdbs_ex_left), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), -@@ -2673,9 +2673,9 @@ check_depth: - spin_lock_irqsave(&T_TASK(cmd)->t_state_lock, flags); - atomic_set(&task->task_active, 1); - atomic_set(&task->task_sent, 1); -- atomic_inc(&T_TASK(cmd)->t_task_cdbs_sent); -+ atomic_inc_unchecked(&T_TASK(cmd)->t_task_cdbs_sent); - -- if (atomic_read(&T_TASK(cmd)->t_task_cdbs_sent) == -+ if (atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent) == - T_TASK(cmd)->t_task_cdbs) - atomic_set(&cmd->transport_sent, 1); - -@@ -5568,7 +5568,7 @@ static void transport_generic_wait_for_t - atomic_set(&T_TASK(cmd)->transport_lun_stop, 0); - } - if (!atomic_read(&T_TASK(cmd)->t_transport_active) || -- atomic_read(&T_TASK(cmd)->t_transport_aborted)) -+ atomic_read_unchecked(&T_TASK(cmd)->t_transport_aborted)) - goto remove; - - atomic_set(&T_TASK(cmd)->t_transport_stop, 1); -@@ -5797,7 +5797,7 @@ int transport_check_aborted_status(struc - { - int ret = 0; - -- if (atomic_read(&T_TASK(cmd)->t_transport_aborted) != 0) { -+ if (atomic_read_unchecked(&T_TASK(cmd)->t_transport_aborted) != 0) { - if (!(send_status) || - (cmd->se_cmd_flags & SCF_SENT_DELAYED_TAS)) - return 1; -@@ -5825,7 +5825,7 @@ void transport_send_task_abort(struct se - */ - if (cmd->data_direction == DMA_TO_DEVICE) { - if (CMD_TFO(cmd)->write_pending_status(cmd) != 0) { -- atomic_inc(&T_TASK(cmd)->t_transport_aborted); -+ atomic_inc_unchecked(&T_TASK(cmd)->t_transport_aborted); - smp_mb__after_atomic_inc(); - cmd->scsi_status = SAM_STAT_TASK_ABORTED; - transport_new_cmd_failure(cmd); -@@ -5949,7 +5949,7 @@ static void transport_processing_shutdow - CMD_TFO(cmd)->get_task_tag(cmd), - T_TASK(cmd)->t_task_cdbs, - atomic_read(&T_TASK(cmd)->t_task_cdbs_left), -- atomic_read(&T_TASK(cmd)->t_task_cdbs_sent), -+ atomic_read_unchecked(&T_TASK(cmd)->t_task_cdbs_sent), - atomic_read(&T_TASK(cmd)->t_transport_active), - atomic_read(&T_TASK(cmd)->t_transport_stop), - atomic_read(&T_TASK(cmd)->t_transport_sent)); -diff -urNp linux-3.0.4/drivers/telephony/ixj.c linux-3.0.4/drivers/telephony/ixj.c ---- linux-3.0.4/drivers/telephony/ixj.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/telephony/ixj.c 2011-08-23 21:48:14.000000000 -0400 -@@ -4976,6 +4976,8 @@ static int ixj_daa_cid_read(IXJ *j) - bool mContinue; - char *pIn, *pOut; - -+ pax_track_stack(); -+ - if (!SCI_Prepare(j)) - return 0; - -diff -urNp linux-3.0.4/drivers/tty/hvc/hvcs.c linux-3.0.4/drivers/tty/hvc/hvcs.c ---- linux-3.0.4/drivers/tty/hvc/hvcs.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/hvc/hvcs.c 2011-08-23 21:47:56.000000000 -0400 -@@ -83,6 +83,7 @@ - #include - #include - #include -+#include - - /* - * 1.3.0 -> 1.3.1 In hvcs_open memset(..,0x00,..) instead of memset(..,0x3F,00). -@@ -270,7 +271,7 @@ struct hvcs_struct { - unsigned int index; - - struct tty_struct *tty; -- int open_count; -+ local_t open_count; - - /* - * Used to tell the driver kernel_thread what operations need to take -@@ -422,7 +423,7 @@ static ssize_t hvcs_vterm_state_store(st - - spin_lock_irqsave(&hvcsd->lock, flags); - -- if (hvcsd->open_count > 0) { -+ if (local_read(&hvcsd->open_count) > 0) { - spin_unlock_irqrestore(&hvcsd->lock, flags); - printk(KERN_INFO "HVCS: vterm state unchanged. " - "The hvcs device node is still in use.\n"); -@@ -1145,7 +1146,7 @@ static int hvcs_open(struct tty_struct * - if ((retval = hvcs_partner_connect(hvcsd))) - goto error_release; - -- hvcsd->open_count = 1; -+ local_set(&hvcsd->open_count, 1); - hvcsd->tty = tty; - tty->driver_data = hvcsd; - -@@ -1179,7 +1180,7 @@ fast_open: - - spin_lock_irqsave(&hvcsd->lock, flags); - kref_get(&hvcsd->kref); -- hvcsd->open_count++; -+ local_inc(&hvcsd->open_count); - hvcsd->todo_mask |= HVCS_SCHED_READ; - spin_unlock_irqrestore(&hvcsd->lock, flags); - -@@ -1223,7 +1224,7 @@ static void hvcs_close(struct tty_struct - hvcsd = tty->driver_data; - - spin_lock_irqsave(&hvcsd->lock, flags); -- if (--hvcsd->open_count == 0) { -+ if (local_dec_and_test(&hvcsd->open_count)) { - - vio_disable_interrupts(hvcsd->vdev); - -@@ -1249,10 +1250,10 @@ static void hvcs_close(struct tty_struct - free_irq(irq, hvcsd); - kref_put(&hvcsd->kref, destroy_hvcs_struct); - return; -- } else if (hvcsd->open_count < 0) { -+ } else if (local_read(&hvcsd->open_count) < 0) { - printk(KERN_ERR "HVCS: vty-server@%X open_count: %d" - " is missmanaged.\n", -- hvcsd->vdev->unit_address, hvcsd->open_count); -+ hvcsd->vdev->unit_address, local_read(&hvcsd->open_count)); - } - - spin_unlock_irqrestore(&hvcsd->lock, flags); -@@ -1268,7 +1269,7 @@ static void hvcs_hangup(struct tty_struc - - spin_lock_irqsave(&hvcsd->lock, flags); - /* Preserve this so that we know how many kref refs to put */ -- temp_open_count = hvcsd->open_count; -+ temp_open_count = local_read(&hvcsd->open_count); - - /* - * Don't kref put inside the spinlock because the destruction -@@ -1283,7 +1284,7 @@ static void hvcs_hangup(struct tty_struc - hvcsd->tty->driver_data = NULL; - hvcsd->tty = NULL; - -- hvcsd->open_count = 0; -+ local_set(&hvcsd->open_count, 0); - - /* This will drop any buffered data on the floor which is OK in a hangup - * scenario. */ -@@ -1354,7 +1355,7 @@ static int hvcs_write(struct tty_struct - * the middle of a write operation? This is a crummy place to do this - * but we want to keep it all in the spinlock. - */ -- if (hvcsd->open_count <= 0) { -+ if (local_read(&hvcsd->open_count) <= 0) { - spin_unlock_irqrestore(&hvcsd->lock, flags); - return -ENODEV; - } -@@ -1428,7 +1429,7 @@ static int hvcs_write_room(struct tty_st - { - struct hvcs_struct *hvcsd = tty->driver_data; - -- if (!hvcsd || hvcsd->open_count <= 0) -+ if (!hvcsd || local_read(&hvcsd->open_count) <= 0) - return 0; - - return HVCS_BUFF_LEN - hvcsd->chars_in_buffer; -diff -urNp linux-3.0.4/drivers/tty/ipwireless/tty.c linux-3.0.4/drivers/tty/ipwireless/tty.c ---- linux-3.0.4/drivers/tty/ipwireless/tty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/ipwireless/tty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -29,6 +29,7 @@ - #include - #include - #include -+#include - - #include "tty.h" - #include "network.h" -@@ -51,7 +52,7 @@ struct ipw_tty { - int tty_type; - struct ipw_network *network; - struct tty_struct *linux_tty; -- int open_count; -+ local_t open_count; - unsigned int control_lines; - struct mutex ipw_tty_mutex; - int tx_bytes_queued; -@@ -127,10 +128,10 @@ static int ipw_open(struct tty_struct *l - mutex_unlock(&tty->ipw_tty_mutex); - return -ENODEV; - } -- if (tty->open_count == 0) -+ if (local_read(&tty->open_count) == 0) - tty->tx_bytes_queued = 0; - -- tty->open_count++; -+ local_inc(&tty->open_count); - - tty->linux_tty = linux_tty; - linux_tty->driver_data = tty; -@@ -146,9 +147,7 @@ static int ipw_open(struct tty_struct *l - - static void do_ipw_close(struct ipw_tty *tty) - { -- tty->open_count--; -- -- if (tty->open_count == 0) { -+ if (local_dec_return(&tty->open_count) == 0) { - struct tty_struct *linux_tty = tty->linux_tty; - - if (linux_tty != NULL) { -@@ -169,7 +168,7 @@ static void ipw_hangup(struct tty_struct - return; - - mutex_lock(&tty->ipw_tty_mutex); -- if (tty->open_count == 0) { -+ if (local_read(&tty->open_count) == 0) { - mutex_unlock(&tty->ipw_tty_mutex); - return; - } -@@ -198,7 +197,7 @@ void ipwireless_tty_received(struct ipw_ - return; - } - -- if (!tty->open_count) { -+ if (!local_read(&tty->open_count)) { - mutex_unlock(&tty->ipw_tty_mutex); - return; - } -@@ -240,7 +239,7 @@ static int ipw_write(struct tty_struct * - return -ENODEV; - - mutex_lock(&tty->ipw_tty_mutex); -- if (!tty->open_count) { -+ if (!local_read(&tty->open_count)) { - mutex_unlock(&tty->ipw_tty_mutex); - return -EINVAL; - } -@@ -280,7 +279,7 @@ static int ipw_write_room(struct tty_str - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - room = IPWIRELESS_TX_QUEUE_SIZE - tty->tx_bytes_queued; -@@ -322,7 +321,7 @@ static int ipw_chars_in_buffer(struct tt - if (!tty) - return 0; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return 0; - - return tty->tx_bytes_queued; -@@ -403,7 +402,7 @@ static int ipw_tiocmget(struct tty_struc - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return get_control_lines(tty); -@@ -419,7 +418,7 @@ ipw_tiocmset(struct tty_struct *linux_tt - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - return set_control_lines(tty, set, clear); -@@ -433,7 +432,7 @@ static int ipw_ioctl(struct tty_struct * - if (!tty) - return -ENODEV; - -- if (!tty->open_count) -+ if (!local_read(&tty->open_count)) - return -EINVAL; - - /* FIXME: Exactly how is the tty object locked here .. */ -@@ -582,7 +581,7 @@ void ipwireless_tty_free(struct ipw_tty - against a parallel ioctl etc */ - mutex_lock(&ttyj->ipw_tty_mutex); - } -- while (ttyj->open_count) -+ while (local_read(&ttyj->open_count)) - do_ipw_close(ttyj); - ipwireless_disassociate_network_ttys(network, - ttyj->channel_idx); -diff -urNp linux-3.0.4/drivers/tty/n_gsm.c linux-3.0.4/drivers/tty/n_gsm.c ---- linux-3.0.4/drivers/tty/n_gsm.c 2011-08-23 21:44:40.000000000 -0400 -+++ linux-3.0.4/drivers/tty/n_gsm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -1589,7 +1589,7 @@ static struct gsm_dlci *gsm_dlci_alloc(s - return NULL; - spin_lock_init(&dlci->lock); - dlci->fifo = &dlci->_fifo; -- if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL) < 0) { -+ if (kfifo_alloc(&dlci->_fifo, 4096, GFP_KERNEL)) { - kfree(dlci); - return NULL; - } -diff -urNp linux-3.0.4/drivers/tty/n_tty.c linux-3.0.4/drivers/tty/n_tty.c ---- linux-3.0.4/drivers/tty/n_tty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/n_tty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -2123,6 +2123,7 @@ void n_tty_inherit_ops(struct tty_ldisc_ - { - *ops = tty_ldisc_N_TTY; - ops->owner = NULL; -- ops->refcount = ops->flags = 0; -+ atomic_set(&ops->refcount, 0); -+ ops->flags = 0; - } - EXPORT_SYMBOL_GPL(n_tty_inherit_ops); -diff -urNp linux-3.0.4/drivers/tty/pty.c linux-3.0.4/drivers/tty/pty.c ---- linux-3.0.4/drivers/tty/pty.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/pty.c 2011-08-23 21:47:56.000000000 -0400 -@@ -754,8 +754,10 @@ static void __init unix98_pty_init(void) - register_sysctl_table(pty_root_table); - - /* Now create the /dev/ptmx special device */ -+ pax_open_kernel(); - tty_default_fops(&ptmx_fops); -- ptmx_fops.open = ptmx_open; -+ *(void **)&ptmx_fops.open = ptmx_open; -+ pax_close_kernel(); - - cdev_init(&ptmx_cdev, &ptmx_fops); - if (cdev_add(&ptmx_cdev, MKDEV(TTYAUX_MAJOR, 2), 1) || -diff -urNp linux-3.0.4/drivers/tty/rocket.c linux-3.0.4/drivers/tty/rocket.c ---- linux-3.0.4/drivers/tty/rocket.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/rocket.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1277,6 +1277,8 @@ static int get_ports(struct r_port *info - struct rocket_ports tmp; - int board; - -+ pax_track_stack(); -+ - if (!retports) - return -EFAULT; - memset(&tmp, 0, sizeof (tmp)); -diff -urNp linux-3.0.4/drivers/tty/serial/kgdboc.c linux-3.0.4/drivers/tty/serial/kgdboc.c ---- linux-3.0.4/drivers/tty/serial/kgdboc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/serial/kgdboc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -23,8 +23,9 @@ - #define MAX_CONFIG_LEN 40 - - static struct kgdb_io kgdboc_io_ops; -+static struct kgdb_io kgdboc_io_ops_console; - --/* -1 = init not run yet, 0 = unconfigured, 1 = configured. */ -+/* -1 = init not run yet, 0 = unconfigured, 1/2 = configured. */ - static int configured = -1; - - static char config[MAX_CONFIG_LEN]; -@@ -147,6 +148,8 @@ static void cleanup_kgdboc(void) - kgdboc_unregister_kbd(); - if (configured == 1) - kgdb_unregister_io_module(&kgdboc_io_ops); -+ else if (configured == 2) -+ kgdb_unregister_io_module(&kgdboc_io_ops_console); - } - - static int configure_kgdboc(void) -@@ -156,13 +159,13 @@ static int configure_kgdboc(void) - int err; - char *cptr = config; - struct console *cons; -+ int is_console = 0; - - err = kgdboc_option_setup(config); - if (err || !strlen(config) || isspace(config[0])) - goto noconfig; - - err = -ENODEV; -- kgdboc_io_ops.is_console = 0; - kgdb_tty_driver = NULL; - - kgdboc_use_kms = 0; -@@ -183,7 +186,7 @@ static int configure_kgdboc(void) - int idx; - if (cons->device && cons->device(cons, &idx) == p && - idx == tty_line) { -- kgdboc_io_ops.is_console = 1; -+ is_console = 1; - break; - } - cons = cons->next; -@@ -193,12 +196,16 @@ static int configure_kgdboc(void) - kgdb_tty_line = tty_line; - - do_register: -- err = kgdb_register_io_module(&kgdboc_io_ops); -+ if (is_console) { -+ err = kgdb_register_io_module(&kgdboc_io_ops_console); -+ configured = 2; -+ } else { -+ err = kgdb_register_io_module(&kgdboc_io_ops); -+ configured = 1; -+ } - if (err) - goto noconfig; - -- configured = 1; -- - return 0; - - noconfig: -@@ -212,7 +219,7 @@ noconfig: - static int __init init_kgdboc(void) - { - /* Already configured? */ -- if (configured == 1) -+ if (configured >= 1) - return 0; - - return configure_kgdboc(); -@@ -261,7 +268,7 @@ static int param_set_kgdboc_var(const ch - if (config[len - 1] == '\n') - config[len - 1] = '\0'; - -- if (configured == 1) -+ if (configured >= 1) - cleanup_kgdboc(); - - /* Go and configure with the new params. */ -@@ -301,6 +308,15 @@ static struct kgdb_io kgdboc_io_ops = { - .post_exception = kgdboc_post_exp_handler, - }; - -+static struct kgdb_io kgdboc_io_ops_console = { -+ .name = "kgdboc", -+ .read_char = kgdboc_get_char, -+ .write_char = kgdboc_put_char, -+ .pre_exception = kgdboc_pre_exp_handler, -+ .post_exception = kgdboc_post_exp_handler, -+ .is_console = 1 -+}; -+ - #ifdef CONFIG_KGDB_SERIAL_CONSOLE - /* This is only available if kgdboc is a built in for early debugging */ - static int __init kgdboc_early_init(char *opt) -diff -urNp linux-3.0.4/drivers/tty/serial/mrst_max3110.c linux-3.0.4/drivers/tty/serial/mrst_max3110.c ---- linux-3.0.4/drivers/tty/serial/mrst_max3110.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/serial/mrst_max3110.c 2011-08-23 21:48:14.000000000 -0400 -@@ -393,6 +393,8 @@ static void max3110_con_receive(struct u - int loop = 1, num, total = 0; - u8 recv_buf[512], *pbuf; - -+ pax_track_stack(); -+ - pbuf = recv_buf; - do { - num = max3110_read_multi(max, pbuf); -diff -urNp linux-3.0.4/drivers/tty/tty_io.c linux-3.0.4/drivers/tty/tty_io.c ---- linux-3.0.4/drivers/tty/tty_io.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/tty_io.c 2011-08-23 21:47:56.000000000 -0400 -@@ -3215,7 +3215,7 @@ EXPORT_SYMBOL_GPL(get_current_tty); - - void tty_default_fops(struct file_operations *fops) - { -- *fops = tty_fops; -+ memcpy((void *)fops, &tty_fops, sizeof(tty_fops)); - } - - /* -diff -urNp linux-3.0.4/drivers/tty/tty_ldisc.c linux-3.0.4/drivers/tty/tty_ldisc.c ---- linux-3.0.4/drivers/tty/tty_ldisc.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/tty_ldisc.c 2011-08-23 21:47:56.000000000 -0400 -@@ -74,7 +74,7 @@ static void put_ldisc(struct tty_ldisc * - if (atomic_dec_and_lock(&ld->users, &tty_ldisc_lock)) { - struct tty_ldisc_ops *ldo = ld->ops; - -- ldo->refcount--; -+ atomic_dec(&ldo->refcount); - module_put(ldo->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - -@@ -109,7 +109,7 @@ int tty_register_ldisc(int disc, struct - spin_lock_irqsave(&tty_ldisc_lock, flags); - tty_ldiscs[disc] = new_ldisc; - new_ldisc->num = disc; -- new_ldisc->refcount = 0; -+ atomic_set(&new_ldisc->refcount, 0); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - - return ret; -@@ -137,7 +137,7 @@ int tty_unregister_ldisc(int disc) - return -EINVAL; - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- if (tty_ldiscs[disc]->refcount) -+ if (atomic_read(&tty_ldiscs[disc]->refcount)) - ret = -EBUSY; - else - tty_ldiscs[disc] = NULL; -@@ -158,7 +158,7 @@ static struct tty_ldisc_ops *get_ldops(i - if (ldops) { - ret = ERR_PTR(-EAGAIN); - if (try_module_get(ldops->owner)) { -- ldops->refcount++; -+ atomic_inc(&ldops->refcount); - ret = ldops; - } - } -@@ -171,7 +171,7 @@ static void put_ldops(struct tty_ldisc_o - unsigned long flags; - - spin_lock_irqsave(&tty_ldisc_lock, flags); -- ldops->refcount--; -+ atomic_dec(&ldops->refcount); - module_put(ldops->owner); - spin_unlock_irqrestore(&tty_ldisc_lock, flags); - } -diff -urNp linux-3.0.4/drivers/tty/vt/keyboard.c linux-3.0.4/drivers/tty/vt/keyboard.c ---- linux-3.0.4/drivers/tty/vt/keyboard.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/keyboard.c 2011-08-23 21:48:14.000000000 -0400 -@@ -656,6 +656,16 @@ static void k_spec(struct vc_data *vc, u - kbd->kbdmode == VC_OFF) && - value != KVAL(K_SAK)) - return; /* SAK is allowed even in raw mode */ -+ -+#if defined(CONFIG_GRKERNSEC_PROC) || defined(CONFIG_GRKERNSEC_PROC_MEMMAP) -+ { -+ void *func = fn_handler[value]; -+ if (func == fn_show_state || func == fn_show_ptregs || -+ func == fn_show_mem) -+ return; -+ } -+#endif -+ - fn_handler[value](vc); - } - -diff -urNp linux-3.0.4/drivers/tty/vt/vt.c linux-3.0.4/drivers/tty/vt/vt.c ---- linux-3.0.4/drivers/tty/vt/vt.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/vt.c 2011-08-23 21:47:56.000000000 -0400 -@@ -259,7 +259,7 @@ EXPORT_SYMBOL_GPL(unregister_vt_notifier - - static void notify_write(struct vc_data *vc, unsigned int unicode) - { -- struct vt_notifier_param param = { .vc = vc, unicode = unicode }; -+ struct vt_notifier_param param = { .vc = vc, .c = unicode }; - atomic_notifier_call_chain(&vt_notifier_list, VT_WRITE, ¶m); - } - -diff -urNp linux-3.0.4/drivers/tty/vt/vt_ioctl.c linux-3.0.4/drivers/tty/vt/vt_ioctl.c ---- linux-3.0.4/drivers/tty/vt/vt_ioctl.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/tty/vt/vt_ioctl.c 2011-08-23 21:48:14.000000000 -0400 -@@ -207,9 +207,6 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - if (copy_from_user(&tmp, user_kbe, sizeof(struct kbentry))) - return -EFAULT; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - switch (cmd) { - case KDGKBENT: - key_map = key_maps[s]; -@@ -221,6 +218,9 @@ do_kdsk_ioctl(int cmd, struct kbentry __ - val = (i ? K_HOLE : K_NOSUCHMAP); - return put_user(val, &user_kbe->kb_value); - case KDSKBENT: -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ perm = 0; -+ - if (!perm) - return -EPERM; - if (!i && v == K_NOSUCHMAP) { -@@ -322,9 +322,6 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - int i, j, k; - int ret; - -- if (!capable(CAP_SYS_TTY_CONFIG)) -- perm = 0; -- - kbs = kmalloc(sizeof(*kbs), GFP_KERNEL); - if (!kbs) { - ret = -ENOMEM; -@@ -358,6 +355,9 @@ do_kdgkb_ioctl(int cmd, struct kbsentry - kfree(kbs); - return ((p && *p) ? -EOVERFLOW : 0); - case KDSKBSENT: -+ if (!capable(CAP_SYS_TTY_CONFIG)) -+ perm = 0; -+ - if (!perm) { - ret = -EPERM; - goto reterr; -diff -urNp linux-3.0.4/drivers/uio/uio.c linux-3.0.4/drivers/uio/uio.c ---- linux-3.0.4/drivers/uio/uio.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/uio/uio.c 2011-08-23 21:47:56.000000000 -0400 -@@ -25,6 +25,7 @@ - #include - #include - #include -+#include - - #define UIO_MAX_DEVICES (1U << MINORBITS) - -@@ -32,10 +33,10 @@ struct uio_device { - struct module *owner; - struct device *dev; - int minor; -- atomic_t event; -+ atomic_unchecked_t event; - struct fasync_struct *async_queue; - wait_queue_head_t wait; -- int vma_count; -+ local_t vma_count; - struct uio_info *info; - struct kobject *map_dir; - struct kobject *portio_dir; -@@ -242,7 +243,7 @@ static ssize_t show_event(struct device - struct device_attribute *attr, char *buf) - { - struct uio_device *idev = dev_get_drvdata(dev); -- return sprintf(buf, "%u\n", (unsigned int)atomic_read(&idev->event)); -+ return sprintf(buf, "%u\n", (unsigned int)atomic_read_unchecked(&idev->event)); - } - - static struct device_attribute uio_class_attributes[] = { -@@ -408,7 +409,7 @@ void uio_event_notify(struct uio_info *i - { - struct uio_device *idev = info->uio_dev; - -- atomic_inc(&idev->event); -+ atomic_inc_unchecked(&idev->event); - wake_up_interruptible(&idev->wait); - kill_fasync(&idev->async_queue, SIGIO, POLL_IN); - } -@@ -461,7 +462,7 @@ static int uio_open(struct inode *inode, - } - - listener->dev = idev; -- listener->event_count = atomic_read(&idev->event); -+ listener->event_count = atomic_read_unchecked(&idev->event); - filep->private_data = listener; - - if (idev->info->open) { -@@ -512,7 +513,7 @@ static unsigned int uio_poll(struct file - return -EIO; - - poll_wait(filep, &idev->wait, wait); -- if (listener->event_count != atomic_read(&idev->event)) -+ if (listener->event_count != atomic_read_unchecked(&idev->event)) - return POLLIN | POLLRDNORM; - return 0; - } -@@ -537,7 +538,7 @@ static ssize_t uio_read(struct file *fil - do { - set_current_state(TASK_INTERRUPTIBLE); - -- event_count = atomic_read(&idev->event); -+ event_count = atomic_read_unchecked(&idev->event); - if (event_count != listener->event_count) { - if (copy_to_user(buf, &event_count, count)) - retval = -EFAULT; -@@ -606,13 +607,13 @@ static int uio_find_mem_index(struct vm_ - static void uio_vma_open(struct vm_area_struct *vma) - { - struct uio_device *idev = vma->vm_private_data; -- idev->vma_count++; -+ local_inc(&idev->vma_count); - } - - static void uio_vma_close(struct vm_area_struct *vma) - { - struct uio_device *idev = vma->vm_private_data; -- idev->vma_count--; -+ local_dec(&idev->vma_count); - } - - static int uio_vma_fault(struct vm_area_struct *vma, struct vm_fault *vmf) -@@ -823,7 +824,7 @@ int __uio_register_device(struct module - idev->owner = owner; - idev->info = info; - init_waitqueue_head(&idev->wait); -- atomic_set(&idev->event, 0); -+ atomic_set_unchecked(&idev->event, 0); - - ret = uio_get_minor(idev); - if (ret) -diff -urNp linux-3.0.4/drivers/usb/atm/cxacru.c linux-3.0.4/drivers/usb/atm/cxacru.c ---- linux-3.0.4/drivers/usb/atm/cxacru.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/atm/cxacru.c 2011-08-23 21:47:56.000000000 -0400 -@@ -473,7 +473,7 @@ static ssize_t cxacru_sysfs_store_adsl_c - ret = sscanf(buf + pos, "%x=%x%n", &index, &value, &tmp); - if (ret < 2) - return -EINVAL; -- if (index < 0 || index > 0x7f) -+ if (index > 0x7f) - return -EINVAL; - pos += tmp; - -diff -urNp linux-3.0.4/drivers/usb/atm/usbatm.c linux-3.0.4/drivers/usb/atm/usbatm.c ---- linux-3.0.4/drivers/usb/atm/usbatm.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/atm/usbatm.c 2011-08-23 21:47:56.000000000 -0400 -@@ -332,7 +332,7 @@ static void usbatm_extract_one_cell(stru - if (printk_ratelimit()) - atm_warn(instance, "%s: OAM not supported (vpi %d, vci %d)!\n", - __func__, vpi, vci); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - return; - } - -@@ -360,7 +360,7 @@ static void usbatm_extract_one_cell(stru - if (length > ATM_MAX_AAL5_PDU) { - atm_rldbg(instance, "%s: bogus length %u (vcc: 0x%p)!\n", - __func__, length, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -369,14 +369,14 @@ static void usbatm_extract_one_cell(stru - if (sarb->len < pdu_length) { - atm_rldbg(instance, "%s: bogus pdu_length %u (sarb->len: %u, vcc: 0x%p)!\n", - __func__, pdu_length, sarb->len, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - - if (crc32_be(~0, skb_tail_pointer(sarb) - pdu_length, pdu_length) != 0xc704dd7b) { - atm_rldbg(instance, "%s: packet failed crc check (vcc: 0x%p)!\n", - __func__, vcc); -- atomic_inc(&vcc->stats->rx_err); -+ atomic_inc_unchecked(&vcc->stats->rx_err); - goto out; - } - -@@ -386,7 +386,7 @@ static void usbatm_extract_one_cell(stru - if (printk_ratelimit()) - atm_err(instance, "%s: no memory for skb (length: %u)!\n", - __func__, length); -- atomic_inc(&vcc->stats->rx_drop); -+ atomic_inc_unchecked(&vcc->stats->rx_drop); - goto out; - } - -@@ -411,7 +411,7 @@ static void usbatm_extract_one_cell(stru - - vcc->push(vcc, skb); - -- atomic_inc(&vcc->stats->rx); -+ atomic_inc_unchecked(&vcc->stats->rx); - out: - skb_trim(sarb, 0); - } -@@ -614,7 +614,7 @@ static void usbatm_tx_process(unsigned l - struct atm_vcc *vcc = UDSL_SKB(skb)->atm.vcc; - - usbatm_pop(vcc, skb); -- atomic_inc(&vcc->stats->tx); -+ atomic_inc_unchecked(&vcc->stats->tx); - - skb = skb_dequeue(&instance->sndqueue); - } -@@ -773,11 +773,11 @@ static int usbatm_atm_proc_read(struct a - if (!left--) - return sprintf(page, - "AAL5: tx %d ( %d err ), rx %d ( %d err, %d drop )\n", -- atomic_read(&atm_dev->stats.aal5.tx), -- atomic_read(&atm_dev->stats.aal5.tx_err), -- atomic_read(&atm_dev->stats.aal5.rx), -- atomic_read(&atm_dev->stats.aal5.rx_err), -- atomic_read(&atm_dev->stats.aal5.rx_drop)); -+ atomic_read_unchecked(&atm_dev->stats.aal5.tx), -+ atomic_read_unchecked(&atm_dev->stats.aal5.tx_err), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_err), -+ atomic_read_unchecked(&atm_dev->stats.aal5.rx_drop)); - - if (!left--) { - if (instance->disconnected) -diff -urNp linux-3.0.4/drivers/usb/core/devices.c linux-3.0.4/drivers/usb/core/devices.c ---- linux-3.0.4/drivers/usb/core/devices.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/core/devices.c 2011-08-23 21:47:56.000000000 -0400 -@@ -126,7 +126,7 @@ static const char format_endpt[] = - * time it gets called. - */ - static struct device_connect_event { -- atomic_t count; -+ atomic_unchecked_t count; - wait_queue_head_t wait; - } device_event = { - .count = ATOMIC_INIT(1), -@@ -164,7 +164,7 @@ static const struct class_info clas_info - - void usbfs_conn_disc_event(void) - { -- atomic_add(2, &device_event.count); -+ atomic_add_unchecked(2, &device_event.count); - wake_up(&device_event.wait); - } - -@@ -648,7 +648,7 @@ static unsigned int usb_device_poll(stru - - poll_wait(file, &device_event.wait, wait); - -- event_count = atomic_read(&device_event.count); -+ event_count = atomic_read_unchecked(&device_event.count); - if (file->f_version != event_count) { - file->f_version = event_count; - return POLLIN | POLLRDNORM; -diff -urNp linux-3.0.4/drivers/usb/core/message.c linux-3.0.4/drivers/usb/core/message.c ---- linux-3.0.4/drivers/usb/core/message.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/core/message.c 2011-08-23 21:47:56.000000000 -0400 -@@ -869,8 +869,8 @@ char *usb_cache_string(struct usb_device - buf = kmalloc(MAX_USB_STRING_SIZE, GFP_NOIO); - if (buf) { - len = usb_string(udev, index, buf, MAX_USB_STRING_SIZE); -- if (len > 0) { -- smallbuf = kmalloc(++len, GFP_NOIO); -+ if (len++ > 0) { -+ smallbuf = kmalloc(len, GFP_NOIO); - if (!smallbuf) - return buf; - memcpy(smallbuf, buf, len); -diff -urNp linux-3.0.4/drivers/usb/early/ehci-dbgp.c linux-3.0.4/drivers/usb/early/ehci-dbgp.c ---- linux-3.0.4/drivers/usb/early/ehci-dbgp.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/early/ehci-dbgp.c 2011-08-23 21:47:56.000000000 -0400 -@@ -97,7 +97,8 @@ static inline u32 dbgp_len_update(u32 x, - - #ifdef CONFIG_KGDB - static struct kgdb_io kgdbdbgp_io_ops; --#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops) -+static struct kgdb_io kgdbdbgp_io_ops_console; -+#define dbgp_kgdb_mode (dbg_io_ops == &kgdbdbgp_io_ops || dbg_io_ops == &kgdbdbgp_io_ops_console) - #else - #define dbgp_kgdb_mode (0) - #endif -@@ -1035,6 +1036,13 @@ static struct kgdb_io kgdbdbgp_io_ops = - .write_char = kgdbdbgp_write_char, - }; - -+static struct kgdb_io kgdbdbgp_io_ops_console = { -+ .name = "kgdbdbgp", -+ .read_char = kgdbdbgp_read_char, -+ .write_char = kgdbdbgp_write_char, -+ .is_console = 1 -+}; -+ - static int kgdbdbgp_wait_time; - - static int __init kgdbdbgp_parse_config(char *str) -@@ -1050,8 +1058,10 @@ static int __init kgdbdbgp_parse_config( - ptr++; - kgdbdbgp_wait_time = simple_strtoul(ptr, &ptr, 10); - } -- kgdb_register_io_module(&kgdbdbgp_io_ops); -- kgdbdbgp_io_ops.is_console = early_dbgp_console.index != -1; -+ if (early_dbgp_console.index != -1) -+ kgdb_register_io_module(&kgdbdbgp_io_ops_console); -+ else -+ kgdb_register_io_module(&kgdbdbgp_io_ops); - - return 0; - } -diff -urNp linux-3.0.4/drivers/usb/host/xhci-mem.c linux-3.0.4/drivers/usb/host/xhci-mem.c ---- linux-3.0.4/drivers/usb/host/xhci-mem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/host/xhci-mem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -1685,6 +1685,8 @@ static int xhci_check_trb_in_td_math(str - unsigned int num_tests; - int i, ret; - -+ pax_track_stack(); -+ - num_tests = ARRAY_SIZE(simple_test_vector); - for (i = 0; i < num_tests; i++) { - ret = xhci_test_trb_in_td(xhci, -diff -urNp linux-3.0.4/drivers/usb/wusbcore/wa-hc.h linux-3.0.4/drivers/usb/wusbcore/wa-hc.h ---- linux-3.0.4/drivers/usb/wusbcore/wa-hc.h 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/wusbcore/wa-hc.h 2011-08-23 21:47:56.000000000 -0400 -@@ -192,7 +192,7 @@ struct wahc { - struct list_head xfer_delayed_list; - spinlock_t xfer_list_lock; - struct work_struct xfer_work; -- atomic_t xfer_id_count; -+ atomic_unchecked_t xfer_id_count; - }; - - -@@ -246,7 +246,7 @@ static inline void wa_init(struct wahc * - INIT_LIST_HEAD(&wa->xfer_delayed_list); - spin_lock_init(&wa->xfer_list_lock); - INIT_WORK(&wa->xfer_work, wa_urb_enqueue_run); -- atomic_set(&wa->xfer_id_count, 1); -+ atomic_set_unchecked(&wa->xfer_id_count, 1); - } - - /** -diff -urNp linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c ---- linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/usb/wusbcore/wa-xfer.c 2011-08-23 21:47:56.000000000 -0400 -@@ -294,7 +294,7 @@ out: - */ - static void wa_xfer_id_init(struct wa_xfer *xfer) - { -- xfer->id = atomic_add_return(1, &xfer->wa->xfer_id_count); -+ xfer->id = atomic_add_return_unchecked(1, &xfer->wa->xfer_id_count); - } - - /* -diff -urNp linux-3.0.4/drivers/vhost/vhost.c linux-3.0.4/drivers/vhost/vhost.c ---- linux-3.0.4/drivers/vhost/vhost.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/vhost/vhost.c 2011-08-23 21:47:56.000000000 -0400 -@@ -589,7 +589,7 @@ static int init_used(struct vhost_virtqu - return get_user(vq->last_used_idx, &used->idx); - } - --static long vhost_set_vring(struct vhost_dev *d, int ioctl, void __user *argp) -+static long vhost_set_vring(struct vhost_dev *d, unsigned int ioctl, void __user *argp) - { - struct file *eventfp, *filep = NULL, - *pollstart = NULL, *pollstop = NULL; -diff -urNp linux-3.0.4/drivers/video/fbcmap.c linux-3.0.4/drivers/video/fbcmap.c ---- linux-3.0.4/drivers/video/fbcmap.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/fbcmap.c 2011-08-23 21:47:56.000000000 -0400 -@@ -285,8 +285,7 @@ int fb_set_user_cmap(struct fb_cmap_user - rc = -ENODEV; - goto out; - } -- if (cmap->start < 0 || (!info->fbops->fb_setcolreg && -- !info->fbops->fb_setcmap)) { -+ if (!info->fbops->fb_setcolreg && !info->fbops->fb_setcmap) { - rc = -EINVAL; - goto out1; - } -diff -urNp linux-3.0.4/drivers/video/fbmem.c linux-3.0.4/drivers/video/fbmem.c ---- linux-3.0.4/drivers/video/fbmem.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/fbmem.c 2011-08-23 21:48:14.000000000 -0400 -@@ -428,7 +428,7 @@ static void fb_do_show_logo(struct fb_in - image->dx += image->width + 8; - } - } else if (rotate == FB_ROTATE_UD) { -- for (x = 0; x < num && image->dx >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dx >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dx -= image->width + 8; - } -@@ -440,7 +440,7 @@ static void fb_do_show_logo(struct fb_in - image->dy += image->height + 8; - } - } else if (rotate == FB_ROTATE_CCW) { -- for (x = 0; x < num && image->dy >= 0; x++) { -+ for (x = 0; x < num && (__s32)image->dy >= 0; x++) { - info->fbops->fb_imageblit(info, image); - image->dy -= image->height + 8; - } -@@ -939,6 +939,8 @@ fb_set_var(struct fb_info *info, struct - int flags = info->flags; - int ret = 0; - -+ pax_track_stack(); -+ - if (var->activate & FB_ACTIVATE_INV_MODE) { - struct fb_videomode mode1, mode2; - -@@ -1064,6 +1066,8 @@ static long do_fb_ioctl(struct fb_info * - void __user *argp = (void __user *)arg; - long ret = 0; - -+ pax_track_stack(); -+ - switch (cmd) { - case FBIOGET_VSCREENINFO: - if (!lock_fb_info(info)) -@@ -1143,7 +1147,7 @@ static long do_fb_ioctl(struct fb_info * - return -EFAULT; - if (con2fb.console < 1 || con2fb.console > MAX_NR_CONSOLES) - return -EINVAL; -- if (con2fb.framebuffer < 0 || con2fb.framebuffer >= FB_MAX) -+ if (con2fb.framebuffer >= FB_MAX) - return -EINVAL; - if (!registered_fb[con2fb.framebuffer]) - request_module("fb%d", con2fb.framebuffer); -diff -urNp linux-3.0.4/drivers/video/i810/i810_accel.c linux-3.0.4/drivers/video/i810/i810_accel.c ---- linux-3.0.4/drivers/video/i810/i810_accel.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/i810/i810_accel.c 2011-08-23 21:47:56.000000000 -0400 -@@ -73,6 +73,7 @@ static inline int wait_for_space(struct - } - } - printk("ringbuffer lockup!!!\n"); -+ printk("head:%u tail:%u iring.size:%u space:%u\n", head, tail, par->iring.size, space); - i810_report_error(mmio); - par->dev_flags |= LOCKUP; - info->pixmap.scan_align = 1; -diff -urNp linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm ---- linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/logo/logo_linux_clut224.ppm 2011-08-29 23:49:40.000000000 -0400 -@@ -1,1604 +1,1123 @@ - P3 --# Standard 224-color Linux logo - 80 80 - 255 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 6 6 6 6 6 6 10 10 10 10 10 10 -- 10 10 10 6 6 6 6 6 6 6 6 6 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 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253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 226 226 226 10 10 10 -- 2 2 6 6 6 6 30 30 30 2 2 6 -- 2 2 6 2 2 6 2 2 6 2 2 6 -- 2 2 6 66 66 66 58 58 58 22 22 22 -- 6 6 6 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 0 0 0 0 0 0 -- 0 0 0 0 0 0 6 6 6 22 22 22 -- 58 58 58 62 62 62 2 2 6 2 2 6 -- 2 2 6 2 2 6 30 30 30 78 78 78 --250 250 250 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 231 231 231 246 246 246 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 253 253 253 253 253 253 --253 253 253 253 253 253 206 206 206 2 2 6 -- 22 22 22 34 34 34 18 14 6 22 22 22 -- 26 26 26 18 18 18 6 6 6 2 2 6 -- 2 2 6 82 82 82 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4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 5 5 5 4 3 3 5 5 5 4 0 0 6 6 6 -+6 6 6 4 0 0 6 6 6 6 6 6 4 0 0 6 6 6 -+4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 5 5 5 4 3 3 5 5 5 6 6 6 4 3 3 -+4 3 3 6 6 6 6 6 6 4 3 3 6 6 6 4 3 3 -+5 5 5 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 6 6 6 -+5 5 5 4 3 3 4 3 3 4 3 3 5 5 5 5 5 5 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 5 5 5 4 3 3 -+5 5 5 4 3 3 5 5 5 5 5 5 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 4 -+4 4 4 4 4 4 -diff -urNp linux-3.0.4/drivers/video/udlfb.c linux-3.0.4/drivers/video/udlfb.c ---- linux-3.0.4/drivers/video/udlfb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/udlfb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -586,11 +586,11 @@ int dlfb_handle_damage(struct dlfb_data - dlfb_urb_completion(urb); - - error: -- atomic_add(bytes_sent, &dev->bytes_sent); -- atomic_add(bytes_identical, &dev->bytes_identical); -- atomic_add(width*height*2, &dev->bytes_rendered); -+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); -+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); -+ atomic_add_unchecked(width*height*2, &dev->bytes_rendered); - end_cycles = get_cycles(); -- atomic_add(((unsigned int) ((end_cycles - start_cycles) -+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) - >> 10)), /* Kcycles */ - &dev->cpu_kcycles_used); - -@@ -711,11 +711,11 @@ static void dlfb_dpy_deferred_io(struct - dlfb_urb_completion(urb); - - error: -- atomic_add(bytes_sent, &dev->bytes_sent); -- atomic_add(bytes_identical, &dev->bytes_identical); -- atomic_add(bytes_rendered, &dev->bytes_rendered); -+ atomic_add_unchecked(bytes_sent, &dev->bytes_sent); -+ atomic_add_unchecked(bytes_identical, &dev->bytes_identical); -+ atomic_add_unchecked(bytes_rendered, &dev->bytes_rendered); - end_cycles = get_cycles(); -- atomic_add(((unsigned int) ((end_cycles - start_cycles) -+ atomic_add_unchecked(((unsigned int) ((end_cycles - start_cycles) - >> 10)), /* Kcycles */ - &dev->cpu_kcycles_used); - } -@@ -1307,7 +1307,7 @@ static ssize_t metrics_bytes_rendered_sh - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_rendered)); -+ atomic_read_unchecked(&dev->bytes_rendered)); - } - - static ssize_t metrics_bytes_identical_show(struct device *fbdev, -@@ -1315,7 +1315,7 @@ static ssize_t metrics_bytes_identical_s - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_identical)); -+ atomic_read_unchecked(&dev->bytes_identical)); - } - - static ssize_t metrics_bytes_sent_show(struct device *fbdev, -@@ -1323,7 +1323,7 @@ static ssize_t metrics_bytes_sent_show(s - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->bytes_sent)); -+ atomic_read_unchecked(&dev->bytes_sent)); - } - - static ssize_t metrics_cpu_kcycles_used_show(struct device *fbdev, -@@ -1331,7 +1331,7 @@ static ssize_t metrics_cpu_kcycles_used_ - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - return snprintf(buf, PAGE_SIZE, "%u\n", -- atomic_read(&dev->cpu_kcycles_used)); -+ atomic_read_unchecked(&dev->cpu_kcycles_used)); - } - - static ssize_t edid_show( -@@ -1388,10 +1388,10 @@ static ssize_t metrics_reset_store(struc - struct fb_info *fb_info = dev_get_drvdata(fbdev); - struct dlfb_data *dev = fb_info->par; - -- atomic_set(&dev->bytes_rendered, 0); -- atomic_set(&dev->bytes_identical, 0); -- atomic_set(&dev->bytes_sent, 0); -- atomic_set(&dev->cpu_kcycles_used, 0); -+ atomic_set_unchecked(&dev->bytes_rendered, 0); -+ atomic_set_unchecked(&dev->bytes_identical, 0); -+ atomic_set_unchecked(&dev->bytes_sent, 0); -+ atomic_set_unchecked(&dev->cpu_kcycles_used, 0); - - return count; - } -diff -urNp linux-3.0.4/drivers/video/uvesafb.c linux-3.0.4/drivers/video/uvesafb.c ---- linux-3.0.4/drivers/video/uvesafb.c 2011-07-21 22:17:23.000000000 -0400 -+++ linux-3.0.4/drivers/video/uvesafb.c 2011-08-23 21:47:56.000000000 -0400 -@@ -19,6 +19,7 @@ - #include - #include - #include -+#include - #include