Xie Yongji e158488be2 locking/rwsem: Fix (possible) missed wakeup ... Because wake_q_add() can imply an immediate wakeup (cmpxchg failure case), we must not rely on the wakeup being delayed. However, commit: e38513905e ("locking/rwsem: Rework zeroing reader waiter->task") relies on exactly that behaviour in that the wakeup must not happen until after we clear waiter->task. [ peterz: Added changelog. ] Signed-off-by: Xie Yongji <xieyongji@baidu.com> Signed-off-by: Zhang Yu <zhangyu31@baidu.com> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Fixes: e38513905e ("locking/rwsem: Rework zeroing reader waiter->task") Link: https://lkml.kernel.org/r/1543495830-2644-1-git-send-email-xieyongji@baidu.com Signed-off-by: Ingo Molnar <mingo@kernel.org>		2019-01-21 11:15:39 +01:00
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locking	locking/rwsem: Fix (possible) missed wakeup	2019-01-21 11:15:39 +01:00
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sched	sched/wake_q: Fix wakeup ordering for wake_q	2019-01-21 11:15:37 +01:00
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futex.c	futex: Fix (possible) missed wakeup	2019-01-21 11:15:38 +01:00
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