Commit 6c9687ab authored Jan 25, 2010 by Peter Zijlstra Committed by Ingo Molnar Jan 29, 2010

perf_event: x86: Optimize x86_pmu_disable()



x86_pmu_disable() removes the event from the cpuc->event_list[], however
since an event can only be on that list once, stop looking after we found
it.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Stephane Eranian <eranian@google.com>
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

parent c933c1a6

arch/x86/kernel/cpu/perf_event.c

+1 −0

Original line number	Diff line number	Diff line
		@@ -1884,6 +1884,7 @@ static void x86_pmu_disable(struct perf_event *event)
		cpuc->event_list[i-1] = cpuc->event_list[i];

		--cpuc->n_events;
		break;
		}
		}
		perf_event_update_userpage(event);