lkml.org 
[lkml]   [2016]   [Jun]   [27]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] sched/fair: avoid !CONFIG_SMP cpufreq update callbacks when go idle
Date
This is to avoid cpufreq update callbacks when we go idle on UP
platforms.

Signed-off-by: Jisheng Zhang <jszhang@marvell.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
\
 
 \ /
  Last update: 2016-06-27 10:41    [W:0.029 / U:0.644 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site