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authorByungchul Park <[email protected]>2017-08-07 16:12:56 +0900
committerIngo Molnar <[email protected]>2017-08-10 12:29:10 +0200
commitcd8084f91c02c1afd256a39aa833bff737631304 (patch)
treea2eb7a1ce13798602affca1f244dbccc583b3952 /tools/perf/scripts/python/futex-contention.py
parent383a4bc88849b804385162e81bf704f8f9690a87 (diff)
locking/lockdep: Apply crossrelease to completions
Although wait_for_completion() and its family can cause deadlock, the lock correctness validator could not be applied to them until now, because things like complete() are usually called in a different context from the waiting context, which violates lockdep's assumption. Thanks to CONFIG_LOCKDEP_CROSSRELEASE, we can now apply the lockdep detector to those completion operations. Applied it. Signed-off-by: Byungchul Park <[email protected]> Signed-off-by: Peter Zijlstra (Intel) <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Cc: [email protected] Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]>
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