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futex: Sanitize exit state handling
authorThomas Gleixner <tglx@linutronix.de>
Wed, 6 Nov 2019 21:55:42 +0000 (22:55 +0100)
committerThomas Gleixner <tglx@linutronix.de>
Wed, 20 Nov 2019 08:40:09 +0000 (09:40 +0100)
commit25e8f388d18d9c2ab60c0c1a422ad1ecf7972ae2
tree3d829eff03ee942cfcf4af2f3bb324e500732742tree | snapshot
parent81544a658d241b5e5456d137687fad66fc343fe5commit | diff
futex: Sanitize exit state handling

Instead of having a smp_mb() and an empty lock/unlock of task::pi_lock move
the state setting into to the lock section.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Ingo Molnar <mingo@kernel.org>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20191106224556.645603214@linutronix.de
kernel/futex.c diff | blob | history
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