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perf: Optimize sw events

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Acked-by: Frederic Weisbecker <fweisbec@gmail.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2010-10-14 22:32:45 +02:00 • committed by Ingo Molnar
parent 82cd6def98
commit 7e54a5a0b6
2 changed files with 12 additions and 10 deletions
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4
kernel/perf_event.c
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@ -4669,7 +4669,7 @@ static void sw_perf_event_destroy(struct perf_event *event)
WARN_ON(event->parent);
atomic_dec(&perf_swevent_enabled[event_id]);
jump_label_dec(&perf_swevent_enabled[event_id]);
swevent_hlist_put(event);
}
@ -4699,7 +4699,7 @@ static int perf_swevent_init(struct perf_event *event)
if (err)
return err;
atomic_inc(&perf_swevent_enabled[event_id]);
jump_label_inc(&perf_swevent_enabled[event_id]);
event->destroy = sw_perf_event_destroy;
}