[PATCH] sched: Remove unnecessary numa dequeue update from non-SMP kernel

From: Tim Chen
Date: Mon Feb 01 2016 - 17:48:05 EST



In account_entity_enqueue, we do not do account_numa_enqueue
as NUMA balancing is not needed for non-SMP configured kernel.

Hence, we should remove account_numa_dequeue from
account_entity_dequeue for the non-SMP kernel.

Signed-off-by: Tim Chen <tim.c.chen@xxxxxxxxxxxxxxx>
---
kernel/sched/fair.c | 2 ++
1 file changed, 2 insertions(+)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 56b7d4b..6cbe2fb 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -2405,10 +2405,12 @@ 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--;
}

--
1.8.3.1