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From ab59be7bc752481db64df07c821e2ae6bf2ae71b Mon Sep 17 00:00:00 2001
From: Brian Behlendorf <behlendorf1@llnl.gov>
Date: Wed, 1 May 2013 16:20:28 -0700
Subject: [PATCH] Fix delay()
Somewhat amazingly it went unnoticed that the delay() function
doesn't actually cause the task to block. Since the task state
is never changed from TASK_RUNNING before schedule_timeout() the
scheduler allows to task to continue running without any delay.
Using schedule_timeout_interruptible() resolves the issue by
correctly setting TASK_UNINTERRUPTIBLE.
Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
---
include/sys/timer.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/include/sys/timer.h b/include/sys/timer.h
index 13ef404..2542510 100644
--- a/include/sys/timer.h
+++ b/include/sys/timer.h
@@ -35,7 +35,7 @@
#define ddi_get_lbolt() ((clock_t)jiffies)
#define ddi_get_lbolt64() ((int64_t)get_jiffies_64())
-#define delay(ticks) schedule_timeout((long)(ticks))
+#define delay(ticks) schedule_timeout_uninterruptible(ticks)
#define SEC_TO_TICK(sec) ((sec) * HZ)
#define MSEC_TO_TICK(ms) msecs_to_jiffies(ms)
--
1.8.1.6
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