tree 3338725751540571a7d490b252f1b450554a6847
parent ba74c1448f127649046615ec017bded7b2a76f29
author Thomas Gleixner <tglx@linutronix.de> 1322694240 +0100
committer Ingo Molnar <mingo@elte.hu> 1330594084 +0100

sched/wait: Add __wake_up_all_locked() API

For code which protects the waitqueue itself with another lock it
makes no sense to acquire the waitqueue lock for wakeup all. Provide
__wake_up_all_locked().

This is an optimization on the vanilla kernel (to be used by the
PCI code) and an important semantic distinction on -rt.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-ux6m4b8jonb9inx8xafh77ds@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@elte.hu>