perf: Fix enable_on_exec for sibling events

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>

1 files changed, 1 insertions, 7 deletions

diff --git a/kernel/events/core.c b/kernel/events/core.c
index eeda5403590c..3c1541d7a53d 100644
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -2497,13 +2497,7 @@ static void perf_event_enable_on_exec(struct perf_event_context *ctx)
         raw_spin_lock(&ctx->lock);
         task_ctx_sched_out(ctx);
 
-        list_for_each_entry(event, &ctx->pinned_groups, group_entry) {
-                ret = event_enable_on_exec(event, ctx);
-                if (ret)
-                        enabled = 1;
-        }
-
-        list_for_each_entry(event, &ctx->flexible_groups, group_entry) {
+        list_for_each_entry(event, &ctx->event_list, event_entry) {
                 ret = event_enable_on_exec(event, ctx);
                 if (ret)
                         enabled = 1;