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Date: Mon, 27 Jun 2016 19:33:22 +0800 From: Jisheng Zhang <jszhang@...vell.com> To: <mingo@...hat.com>, <peterz@...radead.org> CC: <linux-kernel@...r.kernel.org>, Jisheng Zhang <jszhang@...vell.com> Subject: [PATCH v2] sched/fair: avoid !CONFIG_SMP cpufreq update callbacks for !root cfs_rq This is to avoid cpufreq update callbacks for for !root cgroups when !CONFIG_SMP Signed-off-by: Jisheng Zhang <jszhang@...vell.com> --- Since v1: -fix commit msg, now I really know what the check is for, thank Peter 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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