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authorPeter Zijlstra <a.p.zijlstra@chello.nl>2009-11-23 11:37:26 +0100
committerIngo Molnar <mingo@elte.hu>2009-11-23 11:49:56 +0100
commit5e942bb33371254a474653123cd9e13a4c89ee44 (patch)
tree2159878d96ea60de9b530b052390b8ca069f1e98 /kernel
parent2e2af50b1fab3c40636839a7f439c167ae559533 (diff)
perf_events: Update the context time on exit
It appeared we did call update_event_times() on exit, but we failed to update the context time, which renders the former moot. Locking is a bit iffy, we call update_event_times under ctx->mutex instead of ctx->lock - the next patch fixes this. Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Cc: Paul Mackerras <paulus@samba.org> Cc: Frederic Weisbecker <fweisbec@gmail.com> LKML-Reference: <20091123103819.764207355@chello.nl> Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'kernel')
-rw-r--r--kernel/perf_event.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index fb851ec3446..8be2574b89b 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -4983,6 +4983,7 @@ void perf_event_exit_task(struct task_struct *child)
* the events from it.
*/
unclone_ctx(child_ctx);
+ update_context_time(child_ctx);
spin_unlock_irqrestore(&child_ctx->lock, flags);
/*