From 8a1c17574a01555e5d3fdf56d8d72969904c91ca Mon Sep 17 00:00:00 2001 From: Andrew Morton Date: Tue, 13 Sep 2005 01:25:15 -0700 Subject: [PATCH] [PATCH] schedule_timeout_[un]interruptible() speedup These functions don't need schedule_timeout()'s barrier. Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds --- kernel/timer.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/kernel/timer.c b/kernel/timer.c index f4152fc..3ba10fa 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); -- 2.7.4