From 5e942bb33371254a474653123cd9e13a4c89ee44 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 23 Nov 2009 11:37:26 +0100 Subject: [PATCH] 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 Cc: Paul Mackerras Cc: Frederic Weisbecker LKML-Reference: <20091123103819.764207355@chello.nl> Signed-off-by: Ingo Molnar --- kernel/perf_event.c | 1 + 1 file changed, 1 insertion(+) 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); /*