events: Make events use the new is_idle_task() API

Change from direct comparison of ->pid with zero to is_idle_task().

Signed-off-by: Paul E. McKenney <paul.mckenney@linaro.org>
Signed-off-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Reviewed-by: Josh Triplett <josh@joshtriplett.org>

diff --git a/kernel/events/core.c b/kernel/events/core.c
index d3b9df5962c25bdbd3ca324756474366ff8c6d68..923c6b5667dbe57901d9b7cc2f7d64e97c846c41 100644 (file)
--- a/kernel/events/core.c
+++ b/kernel/events/core.c
@@ -5362,7 +5362,7 @@ static enum hrtimer_restart perf_swevent_hrtimer(struct hrtimer *hrtimer)
        regs = get_irq_regs();
 
        if (regs && !perf_exclude_event(event, regs)) {
-               if (!(event->attr.exclude_idle && current->pid == 0))
+               if (!(event->attr.exclude_idle && is_idle_task(current)))
                        if (perf_event_overflow(event, &data, regs))
                                ret = HRTIMER_NORESTART;
        }