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perf: Fix enable_on_exec for sibling events

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Deng-Cheng Zhu reported that sibling events that were created disabled
with enable_on_exec would never get enabled. Iterate all events
instead of the group lists.

Reported-by: Deng-Cheng Zhu <dczhu@mips.com>
Tested-by: Deng-Cheng Zhu <dczhu@mips.com>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/r/1322048382.14799.41.camel@twins
Signed-off-by: Ingo Molnar <mingo@elte.hu>
This commit is contained in:
Peter Zijlstra 2011-11-22 11:25:43 +01:00 committed by Ingo Molnar
parent 1d9b482e78
commit b79387ef18
1 changed files with 1 additions and 7 deletions
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8
kernel/events/core.c
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@ -2497,13 +2497,7 @@ static void perf_event_enable_on_exec(struct perf_event_context *ctx)
raw_spin_lock(&ctx->lock); raw_spin_lock(&ctx->lock);
task_ctx_sched_out(ctx); task_ctx_sched_out(ctx);
list_for_each_entry(event, &ctx->pinned_groups, group_entry) { list_for_each_entry(event, &ctx->event_list, event_entry) {
ret = event_enable_on_exec(event, ctx);
if (ret)
enabled = 1;
}
list_for_each_entry(event, &ctx->flexible_groups, group_entry) {
ret = event_enable_on_exec(event, ctx); ret = event_enable_on_exec(event, ctx);
if (ret) if (ret)
enabled = 1; enabled = 1;