perf/core: Update ctx time before detaching events

We should make sure the ctx time is updated before we detach events;
which will want to update event times.

Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

diff --git a/kernel/events/core.c b/kernel/events/core.c
index d636f1d0e2abf8b2a39df0e6c35224c85c325816..5fae98626b159767842ad59c56af1754cecd49ce 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -11129,6 +11129,7 @@ static void __perf_event_exit_context(void *__info)
        struct perf_event *event;
 
        raw_spin_lock(&ctx->lock);
+       ctx_sched_out(ctx, cpuctx, EVENT_TIME);
        list_for_each_entry(event, &ctx->event_list, event_entry)
                __perf_remove_from_context(event, cpuctx, ctx, (void *)DETACH_GROUP);
        raw_spin_unlock(&ctx->lock);