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Commit bfdb198c authored by Tim Chen's avatar Tim Chen Committed by Ingo Molnar
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sched/numa: Remove unnecessary NUMA dequeue update from non-SMP kernels 



In account_entity_enqueue(), we do not do account_numa_enqueue()
as NUMA balancing is not needed for UP kernels.

Hence, we should remove the account_numa_dequeue() call from
account_entity_dequeue() for UP kernels.

Signed-off-by: default avatarTim Chen <tim.c.chen@linux.intel.com>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Rik van Riel <riel@redhat.com>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1454366879.21738.29.camel@schen9-desk2.jf.intel.com


Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent d02c0711

kernel/sched/fair.c

+2 −0
Original line number Diff line number Diff line
@@ -2437,10 +2437,12 @@ 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--;

}