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Message-ID: <1467014163-1517-1-git-send-email-jszhang@marvell.com> Date: Mon, 27 Jun 2016 15:56:03 +0800 From: Jisheng Zhang <jszhang@...vell.com> To: <mingo@...hat.com>, <peterz@...radead.org>, <rafael.j.wysocki@...el.com> CC: <linux-kernel@...r.kernel.org>, Jisheng Zhang <jszhang@...vell.com> Subject: [PATCH] sched/fair: avoid !CONFIG_SMP cpufreq update callbacks when go idle This is to avoid cpufreq update callbacks when we go idle on UP platforms. Signed-off-by: Jisheng Zhang <jszhang@...vell.com> --- kernel/sched/fair.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index bdcbeea..236ec5b 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -3121,7 +3121,8 @@ static inline void update_load_avg(struct sched_entity *se, int not_used) struct cfs_rq *cfs_rq = cfs_rq_of(se); struct rq *rq = rq_of(cfs_rq); - cpufreq_trigger_update(rq_clock(rq)); + if (&rq->cfs == cfs_rq) + cpufreq_trigger_update(rq_clock(rq)); } static inline void -- 2.8.1
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