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perf_event: Convert to raw_spinlock

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Convert locks which cannot be sleeping locks in preempt-rt to
raw_spinlocks.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Peter Zijlstra <peterz@infradead.org>
Acked-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Thomas Gleixner 2009-11-17 18:02:06 +01:00
commit e625cce1b7
3 changed files with 56 additions and 56 deletions
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2
include/linux/perf_event.h
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@ -681,7 +681,7 @@ struct perf_event_context {
* Protect the states of the events in the list,
* nr_active, and the list:
*/
spinlock_t lock;
raw_spinlock_t lock;
/*
* Protect the list of events. Locking either mutex or lock
* is sufficient to ensure the list doesn't change; to change