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[PATCH] schedule_timeout_[un]interruptible() speedup

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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>
This commit is contained in:
Andrew Morton 2005-09-13 01:25:15 -07:00 • committed by Linus Torvalds
parent 498d0c5711
commit 8a1c17574a
1 changed files with 6 additions and 3 deletions
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9
kernel/timer.c
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@ -1151,19 +1151,22 @@ fastcall signed long __sched schedule_timeout(signed long timeout)
out: out:
return timeout < 0 ? 0 : timeout; return timeout < 0 ? 0 : timeout;
} }
EXPORT_SYMBOL(schedule_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) signed long __sched schedule_timeout_interruptible(signed long timeout)
{ {
set_current_state(TASK_INTERRUPTIBLE); __set_current_state(TASK_INTERRUPTIBLE);
return schedule_timeout(timeout); return schedule_timeout(timeout);
} }
EXPORT_SYMBOL(schedule_timeout_interruptible); EXPORT_SYMBOL(schedule_timeout_interruptible);
signed long __sched schedule_timeout_uninterruptible(signed long timeout) signed long __sched schedule_timeout_uninterruptible(signed long timeout)
{ {
set_current_state(TASK_UNINTERRUPTIBLE); __set_current_state(TASK_UNINTERRUPTIBLE);
return schedule_timeout(timeout); return schedule_timeout(timeout);
} }
EXPORT_SYMBOL(schedule_timeout_uninterruptible); EXPORT_SYMBOL(schedule_timeout_uninterruptible);