From: byungchul.park@lge.com
To: mingo@kernel.org, peterz@infradead.org
Cc: minchan.kim@lge.com, linux-kernel@vger.kernel.org,
Byungchul Park <byungchul.park@lge.com>
Subject: [PATCH 1/1] sched: apply ifdef CONFIG_SMP to meaningful code only on SMP system
Date: Sun, 5 Jul 2015 18:43:31 +0900 [thread overview]
Message-ID: <1436089411-27244-1-git-send-email-byungchul.park@lge.com> (raw)
From: Byungchul Park <byungchul.park@lge.com>
account_numa_dequeue and manipulating se->group_node are meaningful only on SMP
Signed-off-by: Byungchul Park <byungchul.park@lge.com>
---
kernel/sched/fair.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 09456fc..93b8de6 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2337,15 +2337,17 @@ account_entity_dequeue(struct cfs_rq *cfs_rq, struct sched_entity *se)
update_load_sub(&cfs_rq->load, se->load.weight);
if (!parent_entity(se))
update_load_sub(&rq_of(cfs_rq)->load, se->load.weight);
+#ifdef CONFIG_SMP
if (entity_is_task(se)) {
account_numa_dequeue(rq_of(cfs_rq), task_of(se));
list_del_init(&se->group_node);
}
+#endif
cfs_rq->nr_running--;
}
#ifdef CONFIG_FAIR_GROUP_SCHED
-# ifdef CONFIG_SMP
+#ifdef CONFIG_SMP
static inline long calc_tg_weight(struct task_group *tg, struct cfs_rq *cfs_rq)
{
long tg_weight;
--
1.7.9.5
next reply other threads:[~2015-07-05 9:46 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-05 9:43 byungchul.park [this message]
2015-07-06 11:27 ` [PATCH 1/1] sched: apply ifdef CONFIG_SMP to meaningful code only on SMP system Peter Zijlstra
2015-07-06 12:05 ` Byungchul Park
2016-08-25 6:56 ` Byungchul Park
2016-08-26 3:00 ` Byungchul Park
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