From: Paul E. McKenney <paul.mckenney@linaro.org>
Date: Fri, 11 Nov 2011 00:02:52 +0000 (-0800)
Subject: events: Make events use the new is_idle_task() API
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=77aeeebd7b5483582d0eb6e3fd2894771d1fd8e5;p=openwrt%2Fstaging%2Fblogic.git

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 d3b9df5962c2..923c6b5667db 100644
--- 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;
 	}