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authorAndrew Morton <akpm@osdl.org>2005-09-13 01:25:15 -0700
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-13 08:22:29 -0700
commit8a1c17574a01555e5d3fdf56d8d72969904c91ca (patch)
tree9855d1048c2547ac9292c5e4c09c2a88f3b3e4fb /kernel
parent498d0c5711094b0e1fd93f5355d270ccebdec706 (diff)
[PATCH] schedule_timeout_[un]interruptible() speedup
These functions don't need schedule_timeout()'s barrier. Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/timer.c9
1 files changed, 6 insertions, 3 deletions
diff --git a/kernel/timer.c b/kernel/timer.c
index f4152fcd9f8e..3ba10fa35b60 100644
--- a/kernel/timer.c
+++ b/kernel/timer.c
@@ -1151,19 +1151,22 @@ fastcall signed long __sched schedule_timeout(signed long timeout)
out:
return timeout < 0 ? 0 : timeout;
}
-
EXPORT_SYMBOL(schedule_timeout);
+/*
+ * We can use __set_current_state() here because schedule_timeout() calls
+ * schedule() unconditionally.
+ */
signed long __sched schedule_timeout_interruptible(signed long timeout)
{
- set_current_state(TASK_INTERRUPTIBLE);
+ __set_current_state(TASK_INTERRUPTIBLE);
return schedule_timeout(timeout);
}
EXPORT_SYMBOL(schedule_timeout_interruptible);
signed long __sched schedule_timeout_uninterruptible(signed long timeout)
{
- set_current_state(TASK_UNINTERRUPTIBLE);
+ __set_current_state(TASK_UNINTERRUPTIBLE);
return schedule_timeout(timeout);
}
EXPORT_SYMBOL(schedule_timeout_uninterruptible);

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