Move large patch file to mirrors (bug #249019); remove old versions

Package-Manager: portage-2.1.6_rc2/cvs/Linux 2.6.27-gentoo-r2 i686

10 files changed, 15 insertions, 1401 deletions

diff --git a/sys-fs/btrfs/ChangeLog b/sys-fs/btrfs/ChangeLog
index bb563dc7b932..713fe33dfaa3 100644
--- a/sys-fs/btrfs/ChangeLog
+++ b/sys-fs/btrfs/ChangeLog
@@ -1,6 +1,13 @@
 # ChangeLog for sys-fs/btrfs
 # Copyright 1999-2008 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/ChangeLog,v 1.15 2008/11/17 22:53:14 flameeyes Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/ChangeLog,v 1.16 2008/11/27 18:41:54 lavajoe Exp $
+
+  27 Nov 2008; Joe Peterson <lavajoe@gentoo.org>
+  -files/btrfs-0.15-acl-disable.patch, -files/btrfs-0.15-r2-hotfix.patch,
+  -files/btrfs-0.16-hotfix-1.patch, -files/btrfs-0.16-new-kernels.patch,
+  -btrfs-0.15-r2.ebuild, -btrfs-0.16.ebuild, -btrfs-0.16-r1.ebuild,
+  btrfs-0.16-r2.ebuild:
+  Move large patch file to mirrors (bug #249019); remove old versions
 
   17 Nov 2008; Diego E. Pettenò <flameeyes@gentoo.org>
   files/btrfs-0.16-new-kernels.patch:
diff --git a/sys-fs/btrfs/Manifest b/sys-fs/btrfs/Manifest
index aa60f7ad9bc8..63c7f2a68ff8 100644
--- a/sys-fs/btrfs/Manifest
+++ b/sys-fs/btrfs/Manifest
@@ -1,23 +1,6 @@
------BEGIN PGP SIGNED MESSAGE-----
-Hash: SHA1
-
-AUX btrfs-0.15-acl-disable.patch 1260 RMD160 3700cd0baa293d02ff2ec490e081e8919ee64119 SHA1 8c02e30e6b844e837d2ce31109a7e50739cc9522 SHA256 8b410a8eea96d54b5cfc3d683d7fae9d8f9f8fdbff008289e37380cdf16a6808
-AUX btrfs-0.15-r2-hotfix.patch 7478 RMD160 adb3238cf17e1af33b4ab17ee5ece40addec5995 SHA1 3e48fe2ea46d172cb6cf555ba5821e4cd15c20cf SHA256 2c7edfeea3f2e2ff746cd185b3692cb23019879862c87652399b35c81dbeb9d1
-AUX btrfs-0.16-hotfix-1.patch 31253 RMD160 87c54e7f100910cac6b7c300522e1e43ec74e4db SHA1 daea6cd02b56ac566a2c3b4eff1f30688f865bca SHA256 5d553217d949156ecf684035808cb984785dd5d4c09e9ba445a4c353abd38c7a
-AUX btrfs-0.16-new-kernels.patch 1535 RMD160 1625058960f847a0967f0865eac0a0c66b8ee811 SHA1 2d4840336e6cb4ef0d1625df87b7461fd7e001a2 SHA256 5656251bfed02c716e1cceccfaf17306ac5582634a72fff0e7a6181ad50a6a91
-DIST btrfs-0.15.tar.bz2 107545 RMD160 ad8fbe78395d1f425a769eec9719bb60b63b73e6 SHA1 37930ab229b9795db41b02e25713f886758f3b42 SHA256 f6e0d004c0c13d375718c3ab063e1386e8e6262d78f958b15fad13a8d301433e
+DIST btrfs-0.16-hotfix.patch.bz2 7718 RMD160 2107c9b7169d3c2096948bdfc3b312e26d86fd9e SHA1 5453c1c7c7b6c4f7a9e9ef2d16be8918792935fe SHA256 935be03dcb594b67d864c3726f3e1a0088929397d4b482076dcfae711fcf5a5f
 DIST btrfs-0.16.tar.bz2 125070 RMD160 9b448a06ce290ff9e5da58264e96842da2d4c69b SHA1 ae4cd2f3951523d81ef5ee61267ea58ee3cf8d87 SHA256 535838e2053e02ba15fdc6dada4ffdf9d639edc62b99c619f8e09cb4de6bae60
-EBUILD btrfs-0.15-r2.ebuild 1627 RMD160 9a19b5966c1118be0e09ee11ac2667ed9f56bb67 SHA1 b5a67561fc2d2efc03d2417ee70ee178940bdab6 SHA256 c153fd509c83f707b4ee8473c1f578ce7ffe9cd2fc0d0a6d53046a3fe7f1eaa3
-EBUILD btrfs-0.16-r1.ebuild 1677 RMD160 2cd1a22c83a28a121b5ee999c8e6381813ffda7f SHA1 ad35ff6f5054b876867c0ac9f15c126162cda2be SHA256 7634bd224c4e2945acf9f91490fd2ecf905da4598b4c374761581356a86b99ab
-EBUILD btrfs-0.16-r2.ebuild 1633 RMD160 3014b38e5a56f140a5c6332c0ac38450ffdc0997 SHA1 18476ddd0276b8b314499ceebe4a87e4aeaee321 SHA256 359edfc44032697a3a46e04630cab686bb4c440aa8061237608afe0e08654e49
-EBUILD btrfs-0.16.ebuild 1629 RMD160 6f1c1c48d1334e84f640778826eb1c6e0839d585 SHA1 4ea59f227cfd4f80beb61eb7992a034f40525213 SHA256 f136a67297db62b2f9bdcb954e354c977aca1d89d1df9eb1fba9481ddc01ef9c
+EBUILD btrfs-0.16-r2.ebuild 1669 RMD160 dab5289157e57b7430bdab16fbaf7eb0773986fd SHA1 ad4f0adab028a04a101fc4ef13536171103f504a SHA256 04df55f93303a71b783c9d1d95c6a33de9cf1deb79b49936d9c85419a85685f7
 EBUILD btrfs-9999.ebuild 1607 RMD160 b6b8a8ff90ea00cb7d11b6bfa70961e20c80347e SHA1 f588b62e48dfb28719f4a3bd22dc5cc96618f951 SHA256 67e6b42b356ccb80d04937fe1b99043a14d4a7fbc10f32c0dbd803f5d3718edd
-MISC ChangeLog 2690 RMD160 657501ac51bca1436676ab9b26152d007e7cbebf SHA1 f6a3ecfa7f02a8afd9b827981d9b022cb4c8f942 SHA256 5189185f46c09a6796c0d8b156075f18933e73b40e48cae0931910a533c4c940
+MISC ChangeLog 3047 RMD160 61a27e991e83bdddc64a99d4132152b5bff0350d SHA1 9f81dd29480249a126d0cacf79e8d592920fcf69 SHA256 a30c678384c0cc015def1c7625adc30f6160f0335204a5722e7fbf87cfc4a224
 MISC metadata.xml 223 RMD160 0c9c59654305e8789fe6c93fd07c561cfe003f54 SHA1 7904e6fb45104baf2cb67fb9886c633af4dc7056 SHA256 a24b49fe5448d4cb329acf1d8113ac30eb1d61d63a7319b66c077d3f1775d055
------BEGIN PGP SIGNATURE-----
-Version: GnuPG v2.0.9 (GNU/Linux)
-
-iEYEARECAAYFAkkh9d8ACgkQAiZjviIA2XgnKQCdFL84c1S+oG4QtBwduSwnfT3c
-bIwAoOEwOD/lXhspq2wZVf7bmqY6GJT9
-=+BiP
------END PGP SIGNATURE-----
diff --git a/sys-fs/btrfs/btrfs-0.15-r2.ebuild b/sys-fs/btrfs/btrfs-0.15-r2.ebuild
deleted file mode 100644
index f90e6638a2a4..000000000000
--- a/sys-fs/btrfs/btrfs-0.15-r2.ebuild
+++ /dev/null
@@ -1,65 +0,0 @@
-# Copyright 1999-2008 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/btrfs-0.15-r2.ebuild,v 1.4 2008/07/29 03:42:26 lavajoe Exp $
-
-inherit eutils linux-mod
-
-DESCRIPTION="A checksumming copy-on-write filesystem"
-HOMEPAGE="http://btrfs.wiki.kernel.org/"
-SRC_URI="http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/${P}.tar.bz2"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE=""
-
-DEPEND=""
-RDEPEND="${DEPEND}"
-
-pkg_setup()
-{
-	linux-mod_pkg_setup
-
-	BUILD_TARGETS="all"
-	BUILD_PARAMS="KERNELDIR=${KV_OUT_DIR}"
-	MODULE_NAMES="btrfs(fs:${S}/"
-
-	if ! kernel_is 2 6; then
-		eerror "Need a 2.6 kernel to compile against!"
-		die "Need a 2.6 kernel to compile against!"
-	fi
-
-	if ! linux_chkconfig_present LIBCRC32C; then
-		eerror "You need to enable LIBCRC32C in your kernel!"
-		die "You need to enable LIBCRC32C in your kernel!"
-	fi
-}
-
-src_unpack() {
-	unpack ${A}
-	cd "${S}"
-
-	epatch "${FILESDIR}/${PF}-hotfix.patch"
-	epatch "${FILESDIR}/${P}-acl-disable.patch"
-}
-
-src_install()
-{
-	linux-mod_src_install
-
-	dodoc INSTALL TODO
-}
-
-pkg_postinst() {
-	linux-mod_pkg_postinst
-
-	ewarn "WARNING: Btrfs is under heavy development and is not suitable for"
-	ewarn "         any uses other than benchmarking and review."
-	ewarn "         The Btrfs disk format is not yet finalized."
-	ewarn
-	ewarn "         Also, it is highly recommended that the versions of"
-	ewarn "         btrfs and btrfs-progs match."
-	ewarn
-	ewarn "Note: If upgrading from 0.14, there is no disk format change,"
-	ewarn "      but it might be prudent to fsck after upgrading."
-}
diff --git a/sys-fs/btrfs/btrfs-0.16-r1.ebuild b/sys-fs/btrfs/btrfs-0.16-r1.ebuild
deleted file mode 100644
index bd9773ca51dc..000000000000
--- a/sys-fs/btrfs/btrfs-0.16-r1.ebuild
+++ /dev/null
@@ -1,67 +0,0 @@
-# Copyright 1999-2008 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/btrfs-0.16-r1.ebuild,v 1.1 2008/08/18 17:10:33 lavajoe Exp $
-
-inherit eutils linux-mod
-
-DESCRIPTION="A checksumming copy-on-write filesystem"
-HOMEPAGE="http://btrfs.wiki.kernel.org/"
-SRC_URI="http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/${P}.tar.bz2"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE=""
-
-DEPEND=""
-RDEPEND="${DEPEND}"
-
-pkg_setup()
-{
-	linux-mod_pkg_setup
-
-	BUILD_TARGETS="all"
-	BUILD_PARAMS="KERNELDIR=${KV_OUT_DIR}"
-	MODULE_NAMES="btrfs(fs:${S}/"
-
-	if ! kernel_is 2 6; then
-		eerror "Need a 2.6 kernel to compile against!"
-		die "Need a 2.6 kernel to compile against!"
-	fi
-
-	if ! linux_chkconfig_present LIBCRC32C; then
-		eerror "You need to enable LIBCRC32C in your kernel!"
-		die "You need to enable LIBCRC32C in your kernel!"
-	fi
-}
-
-src_unpack() {
-	unpack ${A}
-	cd "${S}"
-
-	# Apply hot fixes
-	#epatch "${FILESDIR}/${P}-hotfix.patch"
-	epatch "${FILESDIR}/${P}-new-kernels.patch"
-}
-
-src_install()
-{
-	linux-mod_src_install
-
-	dodoc INSTALL TODO
-}
-
-pkg_postinst() {
-	linux-mod_pkg_postinst
-
-	ewarn "WARNING: Btrfs is under heavy development and is not suitable for"
-	ewarn "         any uses other than benchmarking and review."
-	ewarn "         The Btrfs disk format is not yet finalized."
-	ewarn
-	ewarn "         Also, it is highly recommended that the versions of"
-	ewarn "         btrfs and btrfs-progs match."
-	ewarn
-	ewarn "Note: THE DISK FORMAT HAS CHANGED!"
-	ewarn "      You must backup your data and re-create your btrfs"
-	ewarn "      filesystem(s) for use with this version."
-}
diff --git a/sys-fs/btrfs/btrfs-0.16-r2.ebuild b/sys-fs/btrfs/btrfs-0.16-r2.ebuild
index dbae32b51317..80414bd15242 100644
--- a/sys-fs/btrfs/btrfs-0.16-r2.ebuild
+++ b/sys-fs/btrfs/btrfs-0.16-r2.ebuild
@@ -1,12 +1,13 @@
 # Copyright 1999-2008 Gentoo Foundation
 # Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/btrfs-0.16-r2.ebuild,v 1.1 2008/08/20 23:59:42 lavajoe Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/btrfs-0.16-r2.ebuild,v 1.2 2008/11/27 18:41:54 lavajoe Exp $
 
 inherit eutils linux-mod
 
 DESCRIPTION="A checksumming copy-on-write filesystem"
 HOMEPAGE="http://btrfs.wiki.kernel.org/"
-SRC_URI="http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/${P}.tar.bz2"
+SRC_URI="http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/${P}.tar.bz2
+	mirror://gentoo/${P}-hotfix.patch.bz2"
 
 LICENSE="GPL-2"
 SLOT="0"
@@ -40,7 +41,7 @@ src_unpack() {
 	cd "${S}"
 
 	# Apply hot fixes
-	epatch "${FILESDIR}/${P}-hotfix-1.patch"
+	epatch "${WORKDIR}/${P}-hotfix.patch"
 }
 
 src_install()
diff --git a/sys-fs/btrfs/btrfs-0.16.ebuild b/sys-fs/btrfs/btrfs-0.16.ebuild
deleted file mode 100644
index 15b73c1992cd..000000000000
--- a/sys-fs/btrfs/btrfs-0.16.ebuild
+++ /dev/null
@@ -1,66 +0,0 @@
-# Copyright 1999-2008 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-# $Header: /var/cvsroot/gentoo-x86/sys-fs/btrfs/btrfs-0.16.ebuild,v 1.1 2008/08/06 04:04:52 lavajoe Exp $
-
-inherit eutils linux-mod
-
-DESCRIPTION="A checksumming copy-on-write filesystem"
-HOMEPAGE="http://btrfs.wiki.kernel.org/"
-SRC_URI="http://www.kernel.org/pub/linux/kernel/people/mason/btrfs/${P}.tar.bz2"
-
-LICENSE="GPL-2"
-SLOT="0"
-KEYWORDS="~amd64 ~x86"
-IUSE=""
-
-DEPEND=""
-RDEPEND="${DEPEND}"
-
-pkg_setup()
-{
-	linux-mod_pkg_setup
-
-	BUILD_TARGETS="all"
-	BUILD_PARAMS="KERNELDIR=${KV_OUT_DIR}"
-	MODULE_NAMES="btrfs(fs:${S}/"
-
-	if ! kernel_is 2 6; then
-		eerror "Need a 2.6 kernel to compile against!"
-		die "Need a 2.6 kernel to compile against!"
-	fi
-
-	if ! linux_chkconfig_present LIBCRC32C; then
-		eerror "You need to enable LIBCRC32C in your kernel!"
-		die "You need to enable LIBCRC32C in your kernel!"
-	fi
-}
-
-src_unpack() {
-	unpack ${A}
-	cd "${S}"
-
-	# Apply hot fixes
-	#epatch "${FILESDIR}/${P}-hotfix.patch"
-}
-
-src_install()
-{
-	linux-mod_src_install
-
-	dodoc INSTALL TODO
-}
-
-pkg_postinst() {
-	linux-mod_pkg_postinst
-
-	ewarn "WARNING: Btrfs is under heavy development and is not suitable for"
-	ewarn "         any uses other than benchmarking and review."
-	ewarn "         The Btrfs disk format is not yet finalized."
-	ewarn
-	ewarn "         Also, it is highly recommended that the versions of"
-	ewarn "         btrfs and btrfs-progs match."
-	ewarn
-	ewarn "Note: THE DISK FORMAT HAS CHANGED!"
-	ewarn "      You must backup your data and re-create your btrfs"
-	ewarn "      filesystem(s) for use with this version."
-}
diff --git a/sys-fs/btrfs/files/btrfs-0.15-acl-disable.patch b/sys-fs/btrfs/files/btrfs-0.15-acl-disable.patch
deleted file mode 100644
index e6dae4b314c6..000000000000
--- a/sys-fs/btrfs/files/btrfs-0.15-acl-disable.patch
+++ /dev/null
@@ -1,31 +0,0 @@
---- btrfs-0.15/xattr.c.orig	2008-06-03 11:11:03.000000000 -0600
-+++ btrfs-0.15/xattr.c	2008-06-03 11:11:23.000000000 -0600
-@@ -29,22 +29,22 @@
- static struct xattr_handler *btrfs_xattr_handler_map[] = {
- 	[BTRFS_XATTR_INDEX_USER]		= &btrfs_xattr_user_handler,
- #ifdef CONFIG_FS_POSIX_ACL
--	[BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS]	= &btrfs_xattr_acl_access_handler,
--	[BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT]	= &btrfs_xattr_acl_default_handler,
-+//	[BTRFS_XATTR_INDEX_POSIX_ACL_ACCESS]	= &btrfs_xattr_acl_access_handler,
-+//	[BTRFS_XATTR_INDEX_POSIX_ACL_DEFAULT]	= &btrfs_xattr_acl_default_handler,
- #endif
- 	[BTRFS_XATTR_INDEX_TRUSTED]		= &btrfs_xattr_trusted_handler,
- 	[BTRFS_XATTR_INDEX_SECURITY]		= &btrfs_xattr_security_handler,
--	[BTRFS_XATTR_INDEX_SYSTEM]		= &btrfs_xattr_system_handler,
-+//	[BTRFS_XATTR_INDEX_SYSTEM]		= &btrfs_xattr_system_handler,
- };
- struct xattr_handler *btrfs_xattr_handlers[] = {
- 	&btrfs_xattr_user_handler,
- #ifdef CONFIG_FS_POSIX_ACL
--	&btrfs_xattr_acl_access_handler,
--	&btrfs_xattr_acl_default_handler,
-+//	&btrfs_xattr_acl_access_handler,
-+//	&btrfs_xattr_acl_default_handler,
- #endif
- 	&btrfs_xattr_trusted_handler,
- 	&btrfs_xattr_security_handler,
--	&btrfs_xattr_system_handler,
-+//	&btrfs_xattr_system_handler,
- 	NULL,
- };
- 
diff --git a/sys-fs/btrfs/files/btrfs-0.15-r2-hotfix.patch b/sys-fs/btrfs/files/btrfs-0.15-r2-hotfix.patch
deleted file mode 100644
index 4e22e185145d..000000000000
--- a/sys-fs/btrfs/files/btrfs-0.15-r2-hotfix.patch
+++ /dev/null
@@ -1,111 +0,0 @@
-Files btrfs-0.15/.hg/00changelog.i and kernel/.hg/00changelog.i differ
-diff -Nur btrfs-0.15/.hg/branch kernel/.hg/branch
---- btrfs-0.15/.hg/branch	1969-12-31 17:00:00.000000000 -0700
-+++ kernel/.hg/branch	2008-06-11 23:19:10.000000000 -0600
-@@ -0,0 +1 @@
-+default
-diff -Nur btrfs-0.15/.hg/branch.cache kernel/.hg/branch.cache
---- btrfs-0.15/.hg/branch.cache	1969-12-31 17:00:00.000000000 -0700
-+++ kernel/.hg/branch.cache	2008-06-11 23:19:09.000000000 -0600
-@@ -0,0 +1,2 @@
-+9da425337329bbdd0c1cfd37deb058885744a140 558
-+9da425337329bbdd0c1cfd37deb058885744a140 default
-Files btrfs-0.15/.hg/dirstate and kernel/.hg/dirstate differ
-diff -Nur btrfs-0.15/.hg/hgrc kernel/.hg/hgrc
---- btrfs-0.15/.hg/hgrc	1969-12-31 17:00:00.000000000 -0700
-+++ kernel/.hg/hgrc	2008-06-11 23:19:09.000000000 -0600
-@@ -0,0 +1,2 @@
-+[paths]
-+default = http://www.kernel.org/hg/btrfs/kernel
-diff -Nur btrfs-0.15/.hg/requires kernel/.hg/requires
---- btrfs-0.15/.hg/requires	1969-12-31 17:00:00.000000000 -0700
-+++ kernel/.hg/requires	2008-06-11 23:19:04.000000000 -0600
-@@ -0,0 +1,2 @@
-+revlogv1
-+store
-Files btrfs-0.15/.hg/store/00changelog.d and kernel/.hg/store/00changelog.d differ
-Files btrfs-0.15/.hg/store/00changelog.i and kernel/.hg/store/00changelog.i differ
-Files btrfs-0.15/.hg/store/00manifest.d and kernel/.hg/store/00manifest.d differ
-Files btrfs-0.15/.hg/store/00manifest.i and kernel/.hg/store/00manifest.i differ
-Files btrfs-0.15/.hg/store/data/.hgtags.i and kernel/.hg/store/data/.hgtags.i differ
-Files btrfs-0.15/.hg/store/data/_c_o_p_y_i_n_g.i and kernel/.hg/store/data/_c_o_p_y_i_n_g.i differ
-Files btrfs-0.15/.hg/store/data/_i_n_s_t_a_l_l.i and kernel/.hg/store/data/_i_n_s_t_a_l_l.i differ
-Files btrfs-0.15/.hg/store/data/_makefile.i and kernel/.hg/store/data/_makefile.i differ
-Files btrfs-0.15/.hg/store/data/_t_o_d_o.i and kernel/.hg/store/data/_t_o_d_o.i differ
-Files btrfs-0.15/.hg/store/data/acl.c.i and kernel/.hg/store/data/acl.c.i differ
-Files btrfs-0.15/.hg/store/data/bit-radix.c.i and kernel/.hg/store/data/bit-radix.c.i differ
-Files btrfs-0.15/.hg/store/data/bit-radix.h.i and kernel/.hg/store/data/bit-radix.h.i differ
-Files btrfs-0.15/.hg/store/data/btrfs__inode.h.i and kernel/.hg/store/data/btrfs__inode.h.i differ
-Files btrfs-0.15/.hg/store/data/compat.h.i and kernel/.hg/store/data/compat.h.i differ
-Files btrfs-0.15/.hg/store/data/crc32c.h.i and kernel/.hg/store/data/crc32c.h.i differ
-Files btrfs-0.15/.hg/store/data/ctree.c.i and kernel/.hg/store/data/ctree.c.i differ
-Files btrfs-0.15/.hg/store/data/ctree.h.i and kernel/.hg/store/data/ctree.h.i differ
-Files btrfs-0.15/.hg/store/data/debug-tree.c.i and kernel/.hg/store/data/debug-tree.c.i differ
-Files btrfs-0.15/.hg/store/data/dir-item.c.i and kernel/.hg/store/data/dir-item.c.i differ
-Files btrfs-0.15/.hg/store/data/dir-test.c.i and kernel/.hg/store/data/dir-test.c.i differ
-Files btrfs-0.15/.hg/store/data/disk-io.c.i and kernel/.hg/store/data/disk-io.c.i differ
-Files btrfs-0.15/.hg/store/data/disk-io.h.i and kernel/.hg/store/data/disk-io.h.i differ
-Files btrfs-0.15/.hg/store/data/extent-tree.c.i and kernel/.hg/store/data/extent-tree.c.i differ
-Files btrfs-0.15/.hg/store/data/extent__io.c.i and kernel/.hg/store/data/extent__io.c.i differ
-Files btrfs-0.15/.hg/store/data/extent__io.h.i and kernel/.hg/store/data/extent__io.h.i differ
-Files btrfs-0.15/.hg/store/data/extent__map.c.i and kernel/.hg/store/data/extent__map.c.i differ
-Files btrfs-0.15/.hg/store/data/extent__map.h.i and kernel/.hg/store/data/extent__map.h.i differ
-Files btrfs-0.15/.hg/store/data/file-item.c.i and kernel/.hg/store/data/file-item.c.i differ
-Files btrfs-0.15/.hg/store/data/file.c.i and kernel/.hg/store/data/file.c.i differ
-Files btrfs-0.15/.hg/store/data/hash.c.i and kernel/.hg/store/data/hash.c.i differ
-Files btrfs-0.15/.hg/store/data/hash.h.i and kernel/.hg/store/data/hash.h.i differ
-Files btrfs-0.15/.hg/store/data/hasher.c.i and kernel/.hg/store/data/hasher.c.i differ
-Files btrfs-0.15/.hg/store/data/inode-item.c.i and kernel/.hg/store/data/inode-item.c.i differ
-Files btrfs-0.15/.hg/store/data/inode-map.c.i and kernel/.hg/store/data/inode-map.c.i differ
-Files btrfs-0.15/.hg/store/data/inode.c.i and kernel/.hg/store/data/inode.c.i differ
-Files btrfs-0.15/.hg/store/data/ioctl.h.i and kernel/.hg/store/data/ioctl.h.i differ
-Files btrfs-0.15/.hg/store/data/kerncompat.h.i and kernel/.hg/store/data/kerncompat.h.i differ
-Files btrfs-0.15/.hg/store/data/list.h.i and kernel/.hg/store/data/list.h.i differ
-Files btrfs-0.15/.hg/store/data/mkfs.c.i and kernel/.hg/store/data/mkfs.c.i differ
-Files btrfs-0.15/.hg/store/data/ordered-data.c.i and kernel/.hg/store/data/ordered-data.c.i differ
-Files btrfs-0.15/.hg/store/data/ordered-data.h.i and kernel/.hg/store/data/ordered-data.h.i differ
-Files btrfs-0.15/.hg/store/data/print-tree.c.i and kernel/.hg/store/data/print-tree.c.i differ
-Files btrfs-0.15/.hg/store/data/print-tree.h.i and kernel/.hg/store/data/print-tree.h.i differ
-Files btrfs-0.15/.hg/store/data/quick-test.c.i and kernel/.hg/store/data/quick-test.c.i differ
-Files btrfs-0.15/.hg/store/data/radix-tree.c.i and kernel/.hg/store/data/radix-tree.c.i differ
-Files btrfs-0.15/.hg/store/data/radix-tree.h.i and kernel/.hg/store/data/radix-tree.h.i differ
-Files btrfs-0.15/.hg/store/data/random-test.c.i and kernel/.hg/store/data/random-test.c.i differ
-Files btrfs-0.15/.hg/store/data/root-tree.c.i and kernel/.hg/store/data/root-tree.c.i differ
-Files btrfs-0.15/.hg/store/data/struct-funcs.c.i and kernel/.hg/store/data/struct-funcs.c.i differ
-Files btrfs-0.15/.hg/store/data/super.c.i and kernel/.hg/store/data/super.c.i differ
-Files btrfs-0.15/.hg/store/data/sysfs.c.i and kernel/.hg/store/data/sysfs.c.i differ
-Files btrfs-0.15/.hg/store/data/transaction.c.i and kernel/.hg/store/data/transaction.c.i differ
-Files btrfs-0.15/.hg/store/data/transaction.h.i and kernel/.hg/store/data/transaction.h.i differ
-Files btrfs-0.15/.hg/store/data/tree-defrag.c.i and kernel/.hg/store/data/tree-defrag.c.i differ
-Files btrfs-0.15/.hg/store/data/volumes.c.i and kernel/.hg/store/data/volumes.c.i differ
-Files btrfs-0.15/.hg/store/data/volumes.h.i and kernel/.hg/store/data/volumes.h.i differ
-Files btrfs-0.15/.hg/store/data/xattr.c.i and kernel/.hg/store/data/xattr.c.i differ
-Files btrfs-0.15/.hg/store/data/xattr.h.i and kernel/.hg/store/data/xattr.h.i differ
-Files btrfs-0.15/.hg/store/undo and kernel/.hg/store/undo differ
-diff -Nur btrfs-0.15/.hg_archival.txt kernel/.hg_archival.txt
---- btrfs-0.15/.hg_archival.txt	2008-05-29 08:31:43.000000000 -0600
-+++ kernel/.hg_archival.txt	1969-12-31 17:00:00.000000000 -0700
-@@ -1,2 +0,0 @@
--repo: 972e56533d49456b288abe364ba0295fa8c0e0ad
--node: 4b7e2b315a32d2a1175f70f39f38b8824d8ed9e1
-diff -Nur btrfs-0.15/transaction.c kernel/transaction.c
---- btrfs-0.15/transaction.c	2008-05-29 08:31:43.000000000 -0600
-+++ kernel/transaction.c	2008-06-11 23:19:10.000000000 -0600
-@@ -56,7 +56,6 @@
- 		total_trans++;
- 		BUG_ON(!cur_trans);
- 		root->fs_info->generation++;
--		root->fs_info->running_transaction = cur_trans;
- 		root->fs_info->last_alloc = 0;
- 		root->fs_info->last_data_alloc = 0;
- 		cur_trans->num_writers = 1;
-@@ -74,6 +73,9 @@
- 		extent_io_tree_init(&cur_trans->dirty_pages,
- 				     root->fs_info->btree_inode->i_mapping,
- 				     GFP_NOFS);
-+		spin_lock(&root->fs_info->new_trans_lock);
-+		root->fs_info->running_transaction = cur_trans;
-+		spin_unlock(&root->fs_info->new_trans_lock);
- 	} else {
- 		cur_trans->num_writers++;
- 		cur_trans->num_joined++;
diff --git a/sys-fs/btrfs/files/btrfs-0.16-hotfix-1.patch b/sys-fs/btrfs/files/btrfs-0.16-hotfix-1.patch
deleted file mode 100644
index dcd6c397cb9b..000000000000
--- a/sys-fs/btrfs/files/btrfs-0.16-hotfix-1.patch
+++ /dev/null
@@ -1,992 +0,0 @@
-diff -Nurp btrfs-0.16/async-thread.c btrfs-0.16.new/async-thread.c
---- btrfs-0.16/async-thread.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/async-thread.c	2008-08-20 17:43:19.211404694 -0600
-@@ -49,6 +49,8 @@ struct btrfs_worker_thread {
- 	/* number of things on the pending list */
- 	atomic_t num_pending;
- 
-+	unsigned long sequence;
-+
- 	/* protects the pending list. */
- 	spinlock_t lock;
- 
-@@ -153,7 +155,7 @@ int btrfs_stop_workers(struct btrfs_work
- /*
-  * simple init on struct btrfs_workers
-  */
--void btrfs_init_workers(struct btrfs_workers *workers, int max)
-+void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max)
- {
- 	workers->num_workers = 0;
- 	INIT_LIST_HEAD(&workers->worker_list);
-@@ -161,6 +163,7 @@ void btrfs_init_workers(struct btrfs_wor
- 	spin_lock_init(&workers->lock);
- 	workers->max_workers = max;
- 	workers->idle_thresh = 32;
-+	workers->name = name;
- }
- 
- /*
-@@ -184,7 +187,9 @@ int btrfs_start_workers(struct btrfs_wor
- 		INIT_LIST_HEAD(&worker->worker_list);
- 		spin_lock_init(&worker->lock);
- 		atomic_set(&worker->num_pending, 0);
--		worker->task = kthread_run(worker_loop, worker, "btrfs");
-+		worker->task = kthread_run(worker_loop, worker,
-+					   "btrfs-%s-%d", workers->name,
-+					   workers->num_workers + i);
- 		worker->workers = workers;
- 		if (IS_ERR(worker->task)) {
- 			kfree(worker);
-@@ -194,6 +199,7 @@ int btrfs_start_workers(struct btrfs_wor
- 
- 		spin_lock_irq(&workers->lock);
- 		list_add_tail(&worker->worker_list, &workers->idle_list);
-+		worker->idle = 1;
- 		workers->num_workers++;
- 		spin_unlock_irq(&workers->lock);
- 	}
-@@ -235,7 +241,10 @@ static struct btrfs_worker_thread *next_
- 	 */
- 	next = workers->worker_list.next;
- 	worker = list_entry(next, struct btrfs_worker_thread, worker_list);
--	list_move_tail(next, &workers->worker_list);
-+	atomic_inc(&worker->num_pending);
-+	worker->sequence++;
-+	if (worker->sequence % workers->idle_thresh == 0)
-+		list_move_tail(next, &workers->worker_list);
- 	return worker;
- }
- 
-diff -Nurp btrfs-0.16/async-thread.h btrfs-0.16.new/async-thread.h
---- btrfs-0.16/async-thread.h	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/async-thread.h	2008-08-20 17:43:19.211404694 -0600
-@@ -69,11 +69,14 @@ struct btrfs_workers {
- 
- 	/* lock for finding the next worker thread to queue on */
- 	spinlock_t lock;
-+
-+	/* extra name for this worker */
-+	char *name;
- };
- 
- int btrfs_queue_worker(struct btrfs_workers *workers, struct btrfs_work *work);
- int btrfs_start_workers(struct btrfs_workers *workers, int num_workers);
- int btrfs_stop_workers(struct btrfs_workers *workers);
--void btrfs_init_workers(struct btrfs_workers *workers, int max);
-+void btrfs_init_workers(struct btrfs_workers *workers, char *name, int max);
- int btrfs_requeue_work(struct btrfs_work *work);
- #endif
-diff -Nurp btrfs-0.16/compat.h btrfs-0.16.new/compat.h
---- btrfs-0.16/compat.h	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/compat.h	2008-08-20 17:43:19.501402495 -0600
-@@ -1,6 +1,9 @@
- #ifndef _COMPAT_H_
- #define _COMPAT_H_
- 
-+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26)
-+#define trylock_page(page) (!TestSetPageLocked(page))
-+#endif
- 
- /*
-  * Even if AppArmor isn't enabled, it still has different prototypes.
-diff -Nurp btrfs-0.16/ctree.h btrfs-0.16.new/ctree.h
---- btrfs-0.16/ctree.h	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/ctree.h	2008-08-20 17:43:19.521406669 -0600
-@@ -526,6 +526,7 @@ struct btrfs_fs_info {
- 	struct btrfs_transaction *running_transaction;
- 	wait_queue_head_t transaction_throttle;
- 	wait_queue_head_t transaction_wait;
-+	wait_queue_head_t async_submit_wait;
- 	struct btrfs_super_block super_copy;
- 	struct btrfs_super_block super_for_commit;
- 	struct block_device *__bdev;
-@@ -544,6 +545,7 @@ struct btrfs_fs_info {
- 	struct list_head hashers;
- 	struct list_head dead_roots;
- 	atomic_t nr_async_submits;
-+	atomic_t nr_async_bios;
- 
- 	/*
- 	 * this is used by the balancing code to wait for all the pending
-@@ -1648,7 +1650,7 @@ int btrfs_csum_truncate(struct btrfs_tra
- /* inode.c */
- 
- /* RHEL and EL kernels have a patch that renames PG_checked to FsMisc */
--#ifdef ClearPageFsMisc
-+#if defined(ClearPageFsMisc) && !defined(ClearPageChecked)
- #define ClearPageChecked ClearPageFsMisc
- #define SetPageChecked SetPageFsMisc
- #define PageChecked PageFsMisc
-diff -Nurp btrfs-0.16/disk-io.c btrfs-0.16.new/disk-io.c
---- btrfs-0.16/disk-io.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/disk-io.c	2008-08-20 17:43:19.541408335 -0600
-@@ -429,14 +429,38 @@ int btrfs_bio_wq_end_io(struct btrfs_fs_
- 	return 0;
- }
- 
-+unsigned long btrfs_async_submit_limit(struct btrfs_fs_info *info)
-+{
-+	unsigned long limit = min_t(unsigned long,
-+				    info->workers.max_workers,
-+				    info->fs_devices->open_devices);
-+	return 256 * limit;
-+}
-+
-+int btrfs_congested_async(struct btrfs_fs_info *info, int iodone)
-+{
-+	return atomic_read(&info->nr_async_bios) >
-+		btrfs_async_submit_limit(info);
-+}
-+
- static void run_one_async_submit(struct btrfs_work *work)
- {
- 	struct btrfs_fs_info *fs_info;
- 	struct async_submit_bio *async;
-+	int limit;
- 
- 	async = container_of(work, struct  async_submit_bio, work);
- 	fs_info = BTRFS_I(async->inode)->root->fs_info;
-+
-+	limit = btrfs_async_submit_limit(fs_info);
-+	limit = limit * 2 / 3;
-+
- 	atomic_dec(&fs_info->nr_async_submits);
-+
-+	if (atomic_read(&fs_info->nr_async_submits) < limit &&
-+	    waitqueue_active(&fs_info->async_submit_wait))
-+		wake_up(&fs_info->async_submit_wait);
-+
- 	async->submit_bio_hook(async->inode, async->rw, async->bio,
- 			       async->mirror_num);
- 	kfree(async);
-@@ -447,6 +471,7 @@ int btrfs_wq_submit_bio(struct btrfs_fs_
- 			extent_submit_bio_hook_t *submit_bio_hook)
- {
- 	struct async_submit_bio *async;
-+	int limit = btrfs_async_submit_limit(fs_info);
- 
- 	async = kmalloc(sizeof(*async), GFP_NOFS);
- 	if (!async)
-@@ -461,6 +486,10 @@ int btrfs_wq_submit_bio(struct btrfs_fs_
- 	async->work.flags = 0;
- 	atomic_inc(&fs_info->nr_async_submits);
- 	btrfs_queue_worker(&fs_info->workers, &async->work);
-+
-+	wait_event_timeout(fs_info->async_submit_wait,
-+			   (atomic_read(&fs_info->nr_async_submits) < limit),
-+			   HZ/10);
- 	return 0;
- }
- 
-@@ -475,11 +504,11 @@ static int __btree_submit_bio_hook(struc
- 
- 	/*
- 	 * when we're called for a write, we're already in the async
--	 * submission context.  Just jump ingo btrfs_map_bio
-+	 * submission context.  Just jump into btrfs_map_bio
- 	 */
- 	if (rw & (1 << BIO_RW)) {
- 		return btrfs_map_bio(BTRFS_I(inode)->root, rw, bio,
--				     mirror_num, 0);
-+				     mirror_num, 1);
- 	}
- 
- 	/*
-@@ -511,6 +540,12 @@ static int btree_writepage(struct page *
- {
- 	struct extent_io_tree *tree;
- 	tree = &BTRFS_I(page->mapping->host)->io_tree;
-+
-+	if (current->flags & PF_MEMALLOC) {
-+		redirty_page_for_writepage(wbc, page);
-+		unlock_page(page);
-+		return 0;
-+	}
- 	return extent_write_full_page(tree, page, btree_get_extent, wbc);
- }
- 
-@@ -522,16 +557,11 @@ static int btree_writepages(struct addre
- 	if (wbc->sync_mode == WB_SYNC_NONE) {
- 		u64 num_dirty;
- 		u64 start = 0;
--		unsigned long thresh = 96 * 1024 * 1024;
-+		unsigned long thresh = 8 * 1024 * 1024;
- 
- 		if (wbc->for_kupdate)
- 			return 0;
- 
--		if (current_is_pdflush()) {
--			thresh = 96 * 1024 * 1024;
--		} else {
--			thresh = 8 * 1024 * 1024;
--		}
- 		num_dirty = count_range_bits(tree, &start, (u64)-1,
- 					     thresh, EXTENT_DIRTY);
- 		if (num_dirty < thresh) {
-@@ -938,15 +968,13 @@ static int btrfs_congested_fn(void *cong
- {
- 	struct btrfs_fs_info *info = (struct btrfs_fs_info *)congested_data;
- 	int ret = 0;
--	int limit = 256 * info->fs_devices->open_devices;
- 	struct list_head *cur;
- 	struct btrfs_device *device;
- 	struct backing_dev_info *bdi;
- 
- 	if ((bdi_bits & (1 << BDI_write_congested)) &&
--	    atomic_read(&info->nr_async_submits) > limit) {
-+	    btrfs_congested_async(info, 0))
- 		return 1;
--	}
- 
- 	list_for_each(cur, &info->fs_devices->devices) {
- 		device = list_entry(cur, struct btrfs_device, dev_list);
-@@ -1250,6 +1278,7 @@ struct btrfs_root *open_ctree(struct sup
- 	INIT_LIST_HEAD(&fs_info->space_info);
- 	btrfs_mapping_init(&fs_info->mapping_tree);
- 	atomic_set(&fs_info->nr_async_submits, 0);
-+	atomic_set(&fs_info->nr_async_bios, 0);
- 	atomic_set(&fs_info->throttles, 0);
- 	atomic_set(&fs_info->throttle_gen, 0);
- 	fs_info->sb = sb;
-@@ -1311,6 +1340,7 @@ struct btrfs_root *open_ctree(struct sup
- 	mutex_init(&fs_info->volume_mutex);
- 	init_waitqueue_head(&fs_info->transaction_throttle);
- 	init_waitqueue_head(&fs_info->transaction_wait);
-+	init_waitqueue_head(&fs_info->async_submit_wait);
- 
- #if 0
- 	ret = add_hasher(fs_info, "crc32c");
-@@ -1347,8 +1377,11 @@ struct btrfs_root *open_ctree(struct sup
- 	 * queue work function gets called at interrupt time, and so it
- 	 * cannot dynamically grow.
- 	 */
--	btrfs_init_workers(&fs_info->workers, fs_info->thread_pool_size);
--	btrfs_init_workers(&fs_info->submit_workers, fs_info->thread_pool_size);
-+	btrfs_init_workers(&fs_info->workers, "worker",
-+			   fs_info->thread_pool_size);
-+	btrfs_init_workers(&fs_info->submit_workers, "submit",
-+			   min_t(u64, fs_devices->num_devices,
-+			   fs_info->thread_pool_size));
- 
- 	/* a higher idle thresh on the submit workers makes it much more
- 	 * likely that bios will be send down in a sane order to the
-@@ -1356,9 +1389,18 @@ struct btrfs_root *open_ctree(struct sup
- 	 */
- 	fs_info->submit_workers.idle_thresh = 64;
- 
--	btrfs_init_workers(&fs_info->fixup_workers, 1);
--	btrfs_init_workers(&fs_info->endio_workers, fs_info->thread_pool_size);
--	btrfs_init_workers(&fs_info->endio_write_workers,
-+	/* fs_info->workers is responsible for checksumming file data
-+	 * blocks and metadata.  Using a larger idle thresh allows each
-+	 * worker thread to operate on things in roughly the order they
-+	 * were sent by the writeback daemons, improving overall locality
-+	 * of the IO going down the pipe.
-+	 */
-+	fs_info->workers.idle_thresh = 128;
-+
-+	btrfs_init_workers(&fs_info->fixup_workers, "fixup", 1);
-+	btrfs_init_workers(&fs_info->endio_workers, "endio",
-+			   fs_info->thread_pool_size);
-+	btrfs_init_workers(&fs_info->endio_write_workers, "endio-write",
- 			   fs_info->thread_pool_size);
- 
- 	/*
-@@ -1823,10 +1865,10 @@ void btrfs_btree_balance_dirty(struct bt
- 	struct extent_io_tree *tree;
- 	u64 num_dirty;
- 	u64 start = 0;
--	unsigned long thresh = 16 * 1024 * 1024;
-+	unsigned long thresh = 96 * 1024 * 1024;
- 	tree = &BTRFS_I(root->fs_info->btree_inode)->io_tree;
- 
--	if (current_is_pdflush())
-+	if (current_is_pdflush() || current->flags & PF_MEMALLOC)
- 		return;
- 
- 	num_dirty = count_range_bits(tree, &start, (u64)-1,
-diff -Nurp btrfs-0.16/disk-io.h btrfs-0.16.new/disk-io.h
---- btrfs-0.16/disk-io.h	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/disk-io.h	2008-08-20 17:43:19.541408335 -0600
-@@ -72,4 +72,6 @@ int btrfs_bio_wq_end_io(struct btrfs_fs_
- int btrfs_wq_submit_bio(struct btrfs_fs_info *fs_info, struct inode *inode,
- 			int rw, struct bio *bio, int mirror_num,
- 			extent_submit_bio_hook_t *submit_bio_hook);
-+int btrfs_congested_async(struct btrfs_fs_info *info, int iodone);
-+unsigned long btrfs_async_submit_limit(struct btrfs_fs_info *info);
- #endif
-diff -Nurp btrfs-0.16/extent_io.c btrfs-0.16.new/extent_io.c
---- btrfs-0.16/extent_io.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/extent_io.c	2008-08-20 17:43:19.561407722 -0600
-@@ -14,6 +14,9 @@
- #include <linux/pagevec.h>
- #include "extent_io.h"
- #include "extent_map.h"
-+#include "compat.h"
-+#include "ctree.h"
-+#include "btrfs_inode.h"
- 
- /* temporary define until extent_map moves out of btrfs */
- struct kmem_cache *btrfs_cache_create(const char *name, size_t size,
-@@ -1393,15 +1396,11 @@ static int end_bio_extent_writepage(stru
- {
- 	int uptodate = err == 0;
- 	struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
--	struct extent_state *state = bio->bi_private;
--	struct extent_io_tree *tree = state->tree;
--	struct rb_node *node;
-+	struct extent_io_tree *tree;
- 	u64 start;
- 	u64 end;
--	u64 cur;
- 	int whole_page;
- 	int ret;
--	unsigned long flags;
- 
- #if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,23)
- 	if (bio->bi_size)
-@@ -1409,6 +1408,8 @@ static int end_bio_extent_writepage(stru
- #endif
- 	do {
- 		struct page *page = bvec->bv_page;
-+		tree = &BTRFS_I(page->mapping->host)->io_tree;
-+
- 		start = ((u64)page->index << PAGE_CACHE_SHIFT) +
- 			 bvec->bv_offset;
- 		end = start + bvec->bv_len - 1;
-@@ -1422,7 +1423,7 @@ static int end_bio_extent_writepage(stru
- 			prefetchw(&bvec->bv_page->flags);
- 		if (tree->ops && tree->ops->writepage_end_io_hook) {
- 			ret = tree->ops->writepage_end_io_hook(page, start,
--						       end, state, uptodate);
-+						       end, NULL, uptodate);
- 			if (ret)
- 				uptodate = 0;
- 		}
-@@ -1430,9 +1431,8 @@ static int end_bio_extent_writepage(stru
- 		if (!uptodate && tree->ops &&
- 		    tree->ops->writepage_io_failed_hook) {
- 			ret = tree->ops->writepage_io_failed_hook(bio, page,
--							 start, end, state);
-+							 start, end, NULL);
- 			if (ret == 0) {
--				state = NULL;
- 				uptodate = (err == 0);
- 				continue;
- 			}
-@@ -1444,68 +1444,7 @@ static int end_bio_extent_writepage(stru
- 			SetPageError(page);
- 		}
- 
--		/*
--		 * bios can get merged in funny ways, and so we need to
--		 * be careful with the state variable.  We know the
--		 * state won't be merged with others because it has
--		 * WRITEBACK set, but we can't be sure each biovec is
--		 * sequential in the file.  So, if our cached state
--		 * doesn't match the expected end, search the tree
--		 * for the correct one.
--		 */
--
--		spin_lock_irqsave(&tree->lock, flags);
--		if (!state || state->end != end) {
--			state = NULL;
--			node = __etree_search(tree, start, NULL, NULL);
--			if (node) {
--				state = rb_entry(node, struct extent_state,
--						 rb_node);
--				if (state->end != end ||
--				    !(state->state & EXTENT_WRITEBACK))
--					state = NULL;
--			}
--			if (!state) {
--				spin_unlock_irqrestore(&tree->lock, flags);
--				clear_extent_writeback(tree, start,
--						       end, GFP_ATOMIC);
--				goto next_io;
--			}
--		}
--		cur = end;
--		while(1) {
--			struct extent_state *clear = state;
--			cur = state->start;
--			node = rb_prev(&state->rb_node);
--			if (node) {
--				state = rb_entry(node,
--						 struct extent_state,
--						 rb_node);
--			} else {
--				state = NULL;
--			}
--
--			clear_state_bit(tree, clear, EXTENT_WRITEBACK,
--					1, 0);
--			if (cur == start)
--				break;
--			if (cur < start) {
--				WARN_ON(1);
--				break;
--			}
--			if (!node)
--				break;
--		}
--		/* before releasing the lock, make sure the next state
--		 * variable has the expected bits set and corresponds
--		 * to the correct offsets in the file
--		 */
--		if (state && (state->end + 1 != start ||
--		    !(state->state & EXTENT_WRITEBACK))) {
--			state = NULL;
--		}
--		spin_unlock_irqrestore(&tree->lock, flags);
--next_io:
-+		clear_extent_writeback(tree, start, end, GFP_ATOMIC);
- 
- 		if (whole_page)
- 			end_page_writeback(page);
-@@ -1538,13 +1477,9 @@ static int end_bio_extent_readpage(struc
- {
- 	int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- 	struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
--	struct extent_state *state = bio->bi_private;
--	struct extent_io_tree *tree = state->tree;
--	struct rb_node *node;
-+	struct extent_io_tree *tree;
- 	u64 start;
- 	u64 end;
--	u64 cur;
--	unsigned long flags;
- 	int whole_page;
- 	int ret;
- 
-@@ -1555,6 +1490,8 @@ static int end_bio_extent_readpage(struc
- 
- 	do {
- 		struct page *page = bvec->bv_page;
-+		tree = &BTRFS_I(page->mapping->host)->io_tree;
-+
- 		start = ((u64)page->index << PAGE_CACHE_SHIFT) +
- 			bvec->bv_offset;
- 		end = start + bvec->bv_len - 1;
-@@ -1569,80 +1506,26 @@ static int end_bio_extent_readpage(struc
- 
- 		if (uptodate && tree->ops && tree->ops->readpage_end_io_hook) {
- 			ret = tree->ops->readpage_end_io_hook(page, start, end,
--							      state);
-+							      NULL);
- 			if (ret)
- 				uptodate = 0;
- 		}
- 		if (!uptodate && tree->ops &&
- 		    tree->ops->readpage_io_failed_hook) {
- 			ret = tree->ops->readpage_io_failed_hook(bio, page,
--							 start, end, state);
-+							 start, end, NULL);
- 			if (ret == 0) {
--				state = NULL;
- 				uptodate =
- 					test_bit(BIO_UPTODATE, &bio->bi_flags);
- 				continue;
- 			}
- 		}
- 
--		spin_lock_irqsave(&tree->lock, flags);
--		if (!state || state->end != end) {
--			state = NULL;
--			node = __etree_search(tree, start, NULL, NULL);
--			if (node) {
--				state = rb_entry(node, struct extent_state,
--						 rb_node);
--				if (state->end != end ||
--				    !(state->state & EXTENT_LOCKED))
--					state = NULL;
--			}
--			if (!state) {
--				spin_unlock_irqrestore(&tree->lock, flags);
--				if (uptodate)
--					set_extent_uptodate(tree, start, end,
--							    GFP_ATOMIC);
--				unlock_extent(tree, start, end, GFP_ATOMIC);
--				goto next_io;
--			}
--		}
-+		if (uptodate)
-+			set_extent_uptodate(tree, start, end,
-+					    GFP_ATOMIC);
-+		unlock_extent(tree, start, end, GFP_ATOMIC);
- 
--		cur = end;
--		while(1) {
--			struct extent_state *clear = state;
--			cur = state->start;
--			node = rb_prev(&state->rb_node);
--			if (node) {
--				state = rb_entry(node,
--					 struct extent_state,
--					 rb_node);
--			} else {
--				state = NULL;
--			}
--			if (uptodate) {
--				set_state_cb(tree, clear, EXTENT_UPTODATE);
--				clear->state |= EXTENT_UPTODATE;
--			}
--			clear_state_bit(tree, clear, EXTENT_LOCKED,
--					1, 0);
--			if (cur == start)
--				break;
--			if (cur < start) {
--				WARN_ON(1);
--				break;
--			}
--			if (!node)
--				break;
--		}
--		/* before releasing the lock, make sure the next state
--		 * variable has the expected bits set and corresponds
--		 * to the correct offsets in the file
--		 */
--		if (state && (state->end + 1 != start ||
--		    !(state->state & EXTENT_LOCKED))) {
--			state = NULL;
--		}
--		spin_unlock_irqrestore(&tree->lock, flags);
--next_io:
- 		if (whole_page) {
- 			if (uptodate) {
- 				SetPageUptodate(page);
-@@ -1682,8 +1565,7 @@ static int end_bio_extent_preparewrite(s
- {
- 	const int uptodate = test_bit(BIO_UPTODATE, &bio->bi_flags);
- 	struct bio_vec *bvec = bio->bi_io_vec + bio->bi_vcnt - 1;
--	struct extent_state *state = bio->bi_private;
--	struct extent_io_tree *tree = state->tree;
-+	struct extent_io_tree *tree;
- 	u64 start;
- 	u64 end;
- 
-@@ -1694,6 +1576,8 @@ static int end_bio_extent_preparewrite(s
- 
- 	do {
- 		struct page *page = bvec->bv_page;
-+		tree = &BTRFS_I(page->mapping->host)->io_tree;
-+
- 		start = ((u64)page->index << PAGE_CACHE_SHIFT) +
- 			bvec->bv_offset;
- 		end = start + bvec->bv_len - 1;
-@@ -1764,7 +1648,7 @@ static int submit_one_bio(int rw, struct
- 	BUG_ON(state->end != end);
- 	spin_unlock_irq(&tree->lock);
- 
--	bio->bi_private = state;
-+	bio->bi_private = NULL;
- 
- 	bio_get(bio);
- 
-@@ -3055,7 +2939,7 @@ int read_extent_buffer_pages(struct exte
- 	for (i = start_i; i < num_pages; i++) {
- 		page = extent_buffer_page(eb, i);
- 		if (!wait) {
--			if (TestSetPageLocked(page))
-+			if (!trylock_page(page))
- 				goto unlock_exit;
- 		} else {
- 			lock_page(page);
-diff -Nurp btrfs-0.16/extent_map.c btrfs-0.16.new/extent_map.c
---- btrfs-0.16/extent_map.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/extent_map.c	2008-08-20 17:43:19.571405082 -0600
-@@ -207,7 +207,14 @@ int add_extent_mapping(struct extent_map
- 	int ret = 0;
- 	struct extent_map *merge = NULL;
- 	struct rb_node *rb;
-+	struct extent_map *exist;
- 
-+	exist = lookup_extent_mapping(tree, em->start, em->len);
-+	if (exist) {
-+		free_extent_map(exist);
-+		ret = -EEXIST;
-+		goto out;
-+	}
- 	assert_spin_locked(&tree->lock);
- 	rb = tree_insert(&tree->map, em->start, &em->rb_node);
- 	if (rb) {
-diff -Nurp btrfs-0.16/file-item.c btrfs-0.16.new/file-item.c
---- btrfs-0.16/file-item.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/file-item.c	2008-08-20 17:43:19.571405082 -0600
-@@ -134,7 +134,6 @@ int btrfs_lookup_file_extent(struct btrf
- 	return ret;
- }
- 
--#if 0 /* broken */
- int btrfs_lookup_bio_sums(struct btrfs_root *root, struct inode *inode,
- 			  struct bio *bio)
- {
-@@ -151,6 +150,8 @@ int btrfs_lookup_bio_sums(struct btrfs_r
- 	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
- 
- 	path = btrfs_alloc_path();
-+	if (bio->bi_size > PAGE_CACHE_SIZE * 8)
-+		path->reada = 2;
- 
- 	WARN_ON(bio->bi_vcnt <= 0);
- 
-@@ -211,7 +212,6 @@ found:
- 	btrfs_free_path(path);
- 	return 0;
- }
--#endif
- 
- int btrfs_csum_one_bio(struct btrfs_root *root, struct inode *inode,
- 		       struct bio *bio)
-@@ -321,6 +321,7 @@ again:
- 	file_key.offset = offset;
- 	btrfs_set_key_type(&file_key, BTRFS_CSUM_ITEM_KEY);
- 
-+	mutex_lock(&BTRFS_I(inode)->csum_mutex);
- 	item = btrfs_lookup_csum(trans, root, path, objectid, offset, 1);
- 	if (!IS_ERR(item)) {
- 		leaf = path->nodes[0];
-@@ -367,7 +368,7 @@ again:
- 	ret = btrfs_search_slot(trans, root, &file_key, path,
- 				BTRFS_CRC32_SIZE, 1);
- 	if (ret < 0)
--		goto fail;
-+		goto fail_unlock;
- 	if (ret == 0) {
- 		BUG();
- 	}
-@@ -411,10 +412,10 @@ insert:
- 	ret = btrfs_insert_empty_item(trans, root, path, &file_key,
- 				      ins_size);
- 	if (ret < 0)
--		goto fail;
-+		goto fail_unlock;
- 	if (ret != 0) {
- 		WARN_ON(1);
--		goto fail;
-+		goto fail_unlock;
- 	}
- csum:
- 	leaf = path->nodes[0];
-@@ -427,6 +428,8 @@ found:
- 	item_end = (struct btrfs_csum_item *)((unsigned char *)item_end +
- 				      btrfs_item_size_nr(leaf, path->slots[0]));
- 	eb_token = NULL;
-+	mutex_unlock(&BTRFS_I(inode)->csum_mutex);
-+	cond_resched();
- next_sector:
- 
- 	if (!eb_token ||
-@@ -467,13 +470,18 @@ next_sector:
- 		eb_token = NULL;
- 	}
- 	btrfs_mark_buffer_dirty(path->nodes[0]);
-+	cond_resched();
- 	if (total_bytes < sums->len) {
- 		btrfs_release_path(root, path);
- 		goto again;
- 	}
--fail:
-+out:
- 	btrfs_free_path(path);
- 	return ret;
-+
-+fail_unlock:
-+	mutex_unlock(&BTRFS_I(inode)->csum_mutex);
-+	goto out;
- }
- 
- int btrfs_csum_truncate(struct btrfs_trans_handle *trans,
-diff -Nurp btrfs-0.16/inode.c btrfs-0.16.new/inode.c
---- btrfs-0.16/inode.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/inode.c	2008-08-20 17:43:19.601409609 -0600
-@@ -389,15 +389,15 @@ int btrfs_submit_bio_hook(struct inode *
- 	ret = btrfs_bio_wq_end_io(root->fs_info, bio, 0);
- 	BUG_ON(ret);
- 
--	if (!(rw & (1 << BIO_RW))) {
--		goto mapit;
--	}
--
- 	if (btrfs_test_opt(root, NODATASUM) ||
- 	    btrfs_test_flag(inode, NODATASUM)) {
- 		goto mapit;
- 	}
- 
-+	if (!(rw & (1 << BIO_RW))) {
-+		btrfs_lookup_bio_sums(root, inode, bio);
-+		goto mapit;
-+	}
- 	return btrfs_wq_submit_bio(BTRFS_I(inode)->root->fs_info,
- 				   inode, rw, bio, mirror_num,
- 				   __btrfs_submit_bio_hook);
-@@ -415,10 +415,8 @@ static noinline int add_pending_csums(st
- 	btrfs_set_trans_block_group(trans, inode);
- 	list_for_each(cur, list) {
- 		sum = list_entry(cur, struct btrfs_ordered_sum, list);
--		mutex_lock(&BTRFS_I(inode)->csum_mutex);
- 		btrfs_csum_file_blocks(trans, BTRFS_I(inode)->root,
- 				       inode, sum);
--		mutex_unlock(&BTRFS_I(inode)->csum_mutex);
- 	}
- 	return 0;
- }
-@@ -605,58 +603,6 @@ int btrfs_writepage_end_io_hook(struct p
- 	return btrfs_finish_ordered_io(page->mapping->host, start, end);
- }
- 
--int btrfs_readpage_io_hook(struct page *page, u64 start, u64 end)
--{
--	int ret = 0;
--	struct inode *inode = page->mapping->host;
--	struct btrfs_root *root = BTRFS_I(inode)->root;
--	struct extent_io_tree *io_tree = &BTRFS_I(inode)->io_tree;
--	struct btrfs_csum_item *item;
--	struct btrfs_path *path = NULL;
--	u32 csum;
--
--	if (btrfs_test_opt(root, NODATASUM) ||
--	    btrfs_test_flag(inode, NODATASUM))
--		return 0;
--
--	/*
--	 * It is possible there is an ordered extent that has
--	 * not yet finished for this range in the file.  If so,
--	 * that extent will have a csum cached, and it will insert
--	 * the sum after all the blocks in the extent are fully
--	 * on disk.  So, look for an ordered extent and use the
--	 * sum if found.  We have to do this before looking in the
--	 * btree because csum items are pre-inserted based on
--	 * the file size.  btrfs_lookup_csum might find an item
--	 * that still hasn't been fully filled.
--	 */
--	ret = btrfs_find_ordered_sum(inode, start, &csum);
--	if (ret == 0)
--		goto found;
--
--	ret = 0;
--	path = btrfs_alloc_path();
--	item = btrfs_lookup_csum(NULL, root, path, inode->i_ino, start, 0);
--	if (IS_ERR(item)) {
--		ret = PTR_ERR(item);
--		/* a csum that isn't present is a preallocated region. */
--		if (ret == -ENOENT || ret == -EFBIG)
--			ret = 0;
--		csum = 0;
--		printk("no csum found for inode %lu start %Lu\n", inode->i_ino,
--		       start);
--		goto out;
--	}
--	read_extent_buffer(path->nodes[0], &csum, (unsigned long)item,
--			   BTRFS_CRC32_SIZE);
--found:
--	set_state_private(io_tree, start, csum);
--out:
--	if (path)
--		btrfs_free_path(path);
--	return ret;
--}
--
- struct io_failure_record {
- 	struct page *page;
- 	u64 start;
-@@ -1655,8 +1601,20 @@ static int btrfs_setattr(struct dentry *
- 		btrfs_truncate_page(inode->i_mapping, inode->i_size);
- 
- 		hole_size = block_end - hole_start;
--		btrfs_wait_ordered_range(inode, hole_start, hole_size);
--		lock_extent(io_tree, hole_start, block_end - 1, GFP_NOFS);
-+		while(1) {
-+			struct btrfs_ordered_extent *ordered;
-+			btrfs_wait_ordered_range(inode, hole_start, hole_size);
-+
-+			lock_extent(io_tree, hole_start, block_end - 1, GFP_NOFS);
-+			ordered = btrfs_lookup_ordered_extent(inode, hole_start);
-+			if (ordered) {
-+				unlock_extent(io_tree, hole_start,
-+					      block_end - 1, GFP_NOFS);
-+				btrfs_put_ordered_extent(ordered);
-+			} else {
-+				break;
-+			}
-+		}
- 
- 		trans = btrfs_start_transaction(root, 1);
- 		btrfs_set_trans_block_group(trans, inode);
-@@ -1833,6 +1791,7 @@ static int btrfs_init_locked_inode(struc
- 	inode->i_ino = args->ino;
- 	BTRFS_I(inode)->root = args->root;
- 	BTRFS_I(inode)->delalloc_bytes = 0;
-+	inode->i_mapping->writeback_index = 0;
- 	BTRFS_I(inode)->disk_i_size = 0;
- 	BTRFS_I(inode)->index_cnt = (u64)-1;
- 	extent_map_tree_init(&BTRFS_I(inode)->extent_tree, GFP_NOFS);
-@@ -2239,6 +2198,7 @@ static struct inode *btrfs_new_inode(str
- 	mutex_init(&BTRFS_I(inode)->csum_mutex);
- 	mutex_init(&BTRFS_I(inode)->extent_mutex);
- 	BTRFS_I(inode)->delalloc_bytes = 0;
-+	inode->i_mapping->writeback_index = 0;
- 	BTRFS_I(inode)->disk_i_size = 0;
- 	BTRFS_I(inode)->root = root;
- 
-@@ -2486,6 +2446,7 @@ static int btrfs_create(struct inode *di
- 		mutex_init(&BTRFS_I(inode)->extent_mutex);
- 		BTRFS_I(inode)->delalloc_bytes = 0;
- 		BTRFS_I(inode)->disk_i_size = 0;
-+		inode->i_mapping->writeback_index = 0;
- 		BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
- 		btrfs_ordered_inode_tree_init(&BTRFS_I(inode)->ordered_tree);
- 	}
-@@ -3549,6 +3510,7 @@ static int btrfs_symlink(struct inode *d
- 		mutex_init(&BTRFS_I(inode)->extent_mutex);
- 		BTRFS_I(inode)->delalloc_bytes = 0;
- 		BTRFS_I(inode)->disk_i_size = 0;
-+		inode->i_mapping->writeback_index = 0;
- 		BTRFS_I(inode)->io_tree.ops = &btrfs_extent_io_ops;
- 		btrfs_ordered_inode_tree_init(&BTRFS_I(inode)->ordered_tree);
- 	}
-@@ -3654,7 +3616,6 @@ static struct extent_io_ops btrfs_extent
- 	.fill_delalloc = run_delalloc_range,
- 	.submit_bio_hook = btrfs_submit_bio_hook,
- 	.merge_bio_hook = btrfs_merge_bio_hook,
--	.readpage_io_hook = btrfs_readpage_io_hook,
- 	.readpage_end_io_hook = btrfs_readpage_end_io_hook,
- 	.writepage_end_io_hook = btrfs_writepage_end_io_hook,
- 	.writepage_start_hook = btrfs_writepage_start_hook,
-diff -Nurp btrfs-0.16/transaction.c btrfs-0.16.new/transaction.c
---- btrfs-0.16/transaction.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/transaction.c	2008-08-20 17:43:19.641404933 -0600
-@@ -303,12 +303,12 @@ int btrfs_write_and_wait_transaction(str
- 				     struct btrfs_root *root)
- {
- 	int ret;
--	int err;
-+	int err = 0;
- 	int werr = 0;
- 	struct extent_io_tree *dirty_pages;
- 	struct page *page;
- 	struct inode *btree_inode = root->fs_info->btree_inode;
--	u64 start;
-+	u64 start = 0;
- 	u64 end;
- 	unsigned long index;
- 
-@@ -317,12 +317,13 @@ int btrfs_write_and_wait_transaction(str
- 	}
- 	dirty_pages = &trans->transaction->dirty_pages;
- 	while(1) {
--		ret = find_first_extent_bit(dirty_pages, 0, &start, &end,
-+		ret = find_first_extent_bit(dirty_pages, start, &start, &end,
- 					    EXTENT_DIRTY);
- 		if (ret)
- 			break;
--		clear_extent_dirty(dirty_pages, start, end, GFP_NOFS);
- 		while(start <= end) {
-+			cond_resched();
-+
- 			index = start >> PAGE_CACHE_SHIFT;
- 			start = (u64)(index + 1) << PAGE_CACHE_SHIFT;
- 			page = find_lock_page(btree_inode->i_mapping, index);
-@@ -343,7 +344,30 @@ int btrfs_write_and_wait_transaction(str
- 			page_cache_release(page);
- 		}
- 	}
--	err = filemap_fdatawait(btree_inode->i_mapping);
-+	while(1) {
-+		ret = find_first_extent_bit(dirty_pages, 0, &start, &end,
-+					    EXTENT_DIRTY);
-+		if (ret)
-+			break;
-+
-+		clear_extent_dirty(dirty_pages, start, end, GFP_NOFS);
-+		while(start <= end) {
-+			index = start >> PAGE_CACHE_SHIFT;
-+			start = (u64)(index + 1) << PAGE_CACHE_SHIFT;
-+			page = find_get_page(btree_inode->i_mapping, index);
-+			if (!page)
-+				continue;
-+			if (PageDirty(page)) {
-+				lock_page(page);
-+				err = write_one_page(page, 0);
-+				if (err)
-+					werr = err;
-+			}
-+			wait_on_page_writeback(page);
-+			page_cache_release(page);
-+			cond_resched();
-+		}
-+	}
- 	if (err)
- 		werr = err;
- 	return werr;
-diff -Nurp btrfs-0.16/volumes.c btrfs-0.16.new/volumes.c
---- btrfs-0.16/volumes.c	2008-08-05 12:13:37.000000000 -0600
-+++ btrfs-0.16.new/volumes.c	2008-08-20 17:43:19.651405254 -0600
-@@ -138,12 +138,18 @@ int run_scheduled_bios(struct btrfs_devi
- {
- 	struct bio *pending;
- 	struct backing_dev_info *bdi;
-+	struct btrfs_fs_info *fs_info;
- 	struct bio *tail;
- 	struct bio *cur;
- 	int again = 0;
- 	unsigned long num_run = 0;
-+	unsigned long limit;
- 
- 	bdi = device->bdev->bd_inode->i_mapping->backing_dev_info;
-+	fs_info = device->dev_root->fs_info;
-+	limit = btrfs_async_submit_limit(fs_info);
-+	limit = limit * 2 / 3;
-+
- loop:
- 	spin_lock(&device->io_lock);
- 
-@@ -179,7 +185,11 @@ loop:
- 		cur = pending;
- 		pending = pending->bi_next;
- 		cur->bi_next = NULL;
--		atomic_dec(&device->dev_root->fs_info->nr_async_submits);
-+		atomic_dec(&fs_info->nr_async_bios);
-+
-+		if (atomic_read(&fs_info->nr_async_bios) < limit &&
-+		    waitqueue_active(&fs_info->async_submit_wait))
-+			wake_up(&fs_info->async_submit_wait);
- 
- 		BUG_ON(atomic_read(&cur->bi_cnt) == 0);
- 		bio_get(cur);
-@@ -2135,6 +2145,7 @@ int schedule_bio(struct btrfs_root *root
- 		 int rw, struct bio *bio)
- {
- 	int should_queue = 1;
-+	unsigned long limit;
- 
- 	/* don't bother with additional async steps for reads, right now */
- 	if (!(rw & (1 << BIO_RW))) {
-@@ -2145,12 +2156,12 @@ int schedule_bio(struct btrfs_root *root
- 	}
- 
- 	/*
--	 * nr_async_sumbits allows us to reliably return congestion to the
-+	 * nr_async_bios allows us to reliably return congestion to the
- 	 * higher layers.  Otherwise, the async bio makes it appear we have
- 	 * made progress against dirty pages when we've really just put it
- 	 * on a queue for later
- 	 */
--	atomic_inc(&root->fs_info->nr_async_submits);
-+	atomic_inc(&root->fs_info->nr_async_bios);
- 	WARN_ON(bio->bi_next);
- 	bio->bi_next = NULL;
- 	bio->bi_rw |= rw;
-@@ -2171,6 +2182,11 @@ int schedule_bio(struct btrfs_root *root
- 	if (should_queue)
- 		btrfs_queue_worker(&root->fs_info->submit_workers,
- 				   &device->work);
-+
-+	limit = btrfs_async_submit_limit(root->fs_info);
-+	wait_event_timeout(root->fs_info->async_submit_wait,
-+			   (atomic_read(&root->fs_info->nr_async_bios) < limit),
-+			   HZ/10);
- 	return 0;
- }
- 
diff --git a/sys-fs/btrfs/files/btrfs-0.16-new-kernels.patch b/sys-fs/btrfs/files/btrfs-0.16-new-kernels.patch
deleted file mode 100644
index bc93756c7730..000000000000
--- a/sys-fs/btrfs/files/btrfs-0.16-new-kernels.patch
+++ /dev/null
@@ -1,45 +0,0 @@
-diff -Nurp a/compat.h ./compat.h
---- a/compat.h	2008-08-05 12:13:37.000000000 -0600
-+++ b/compat.h	2008-08-18 10:59:06.974647262 -0600
-@@ -1,6 +1,9 @@
- #ifndef _COMPAT_H_
- #define _COMPAT_H_
- 
-+#if LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,26)
-+#define trylock_page(page) (!TestSetPageLocked(page))
-+#endif
- 
- /*
-  * Even if AppArmor isn't enabled, it still has different prototypes.
-diff -Nurp a/ctree.h ./ctree.h
---- a/ctree.h	2008-08-05 12:13:37.000000000 -0600
-+++ b/ctree.h	2008-08-18 10:59:07.004646324 -0600
-@@ -1648,7 +1648,7 @@ int btrfs_csum_truncate(struct btrfs_tra
- /* inode.c */
- 
- /* RHEL and EL kernels have a patch that renames PG_checked to FsMisc */
--#ifdef ClearPageFsMisc
-+#if defined(ClearPageFsMisc) && !defined(ClearPageChecked)
- #define ClearPageChecked ClearPageFsMisc
- #define SetPageChecked SetPageFsMisc
- #define PageChecked PageFsMisc
-diff -Nurp a/extent_io.c ./extent_io.c
---- a/extent_io.c	2008-08-05 12:13:37.000000000 -0600
-+++ b/extent_io.c	2008-08-18 10:59:07.044650492 -0600
-@@ -14,6 +14,7 @@
- #include <linux/pagevec.h>
- #include "extent_io.h"
- #include "extent_map.h"
-+#include "compat.h"
- 
- /* temporary define until extent_map moves out of btrfs */
- struct kmem_cache *btrfs_cache_create(const char *name, size_t size,
-@@ -3055,7 +3056,7 @@ int read_extent_buffer_pages(struct exte
- 	for (i = start_i; i < num_pages; i++) {
- 		page = extent_buffer_page(eb, i);
- 		if (!wait) {
--			if (TestSetPageLocked(page))
-+			if (!trylock_page(page))
- 				goto unlock_exit;
- 		} else {
- 			lock_page(page);