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perf: Always destroy groups on exit 

Commit 38b435b16c ("perf: Fix tear-down of inherited group events")
states that we need to destroy groups for inherited events, but it
doesn't make any sense to not also destroy groups for normal events.

And while it usually makes no difference (the normal events won't
leak, and its very likely all the group events will die in quick
succession) it does make the code more consistent and closes a
potential hole for trouble.

Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Vince Weaver <vincent.weaver@maine.edu>
Cc: Stephane Eranian <eranian@google.com>
Link: http://lkml.kernel.org/n/tip-426egt8zmsm12d2q8k2xz4tt@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
5bit-waveforms
Peter Zijlstra 2014-05-05 11:41:02 +02:00 committed by Ingo Molnar
parent 1f4ee5038f
commit 15a2d4de0e
1 changed files with 1 additions and 1 deletions
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2
kernel/events/core.c
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@ -7400,7 +7400,7 @@ __perf_event_exit_task(struct perf_event *child_event,
struct perf_event_context *child_ctx,
struct task_struct *child)
{
perf_remove_from_context(child_event, !!child_event->parent);
perf_remove_from_context(child_event, true);
/*
* It can happen that the parent exits first, and has events