perf/core: Fix perf_event_read_value() locking

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perf_event_read_value() is an external accessor, just like
perf_event_{en,dis}able() and should thus use perf_event_ctx_lock().

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: f63a8daa58 ("perf: Fix event->ctx locking")
Signed-off-by: Ingo Molnar <mingo@kernel.org>

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Peter Zijlstra 2017-09-05 13:23:44 +02:00 • committed by Ingo Molnar

parent 7d9285e82d

commit ca0dd44cf3

1 changed files with 14 additions and 2 deletions

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kernel/events/core.c

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