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semaphore: use unlikely() for down's timeout
Signed-off-by: liguang <lig.fnst@cn.fujitsu.com> Cc: Jiri Kosina <jkosina@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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@ -214,7 +214,7 @@ static inline int __sched __down_common(struct semaphore *sem, long state,
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for (;;) {
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for (;;) {
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if (signal_pending_state(state, task))
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if (signal_pending_state(state, task))
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goto interrupted;
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goto interrupted;
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if (timeout <= 0)
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if (unlikely(timeout <= 0))
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goto timed_out;
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goto timed_out;
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__set_task_state(task, state);
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__set_task_state(task, state);
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raw_spin_unlock_irq(&sem->lock);
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raw_spin_unlock_irq(&sem->lock);
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