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perf, x86: Properly account n_added

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Make sure n_added is properly accounted so that we can rely on the value
to reflect the number of added counters. This is needed if its going to
be used for more than a boolean check.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Arnaldo Carvalho de Melo <acme@infradead.org>
Cc: paulus@samba.org
Cc: eranian@google.com
Cc: robert.richter@amd.com
Cc: fweisbec@gmail.com
LKML-Reference: <new-submission>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2010-03-06 13:49:56 +01:00 committed by Ingo Molnar
parent 71e2d28280
commit 356e1f2e0a
1 changed files with 2 additions and 2 deletions
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4
arch/x86/kernel/cpu/perf_event.c
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@ -959,7 +959,7 @@ static int x86_pmu_enable(struct perf_event *event)
memcpy(cpuc->assign, assign, n*sizeof(int));
cpuc->n_events = n;
cpuc->n_added = n - n0;
cpuc->n_added += n - n0;
return 0;
}
@ -1302,7 +1302,7 @@ int hw_perf_group_sched_in(struct perf_event *leader,
memcpy(cpuc->assign, assign, n0*sizeof(int));
cpuc->n_events = n0;
cpuc->n_added = n1;
cpuc->n_added += n1;
ctx->nr_active += n1;
/*