Commit a7ba8948 authored by Vincent Guittot's avatar Vincent Guittot Committed by Peter Zijlstra
Browse files

sched/fair: Removed useless update of p->recent_used_cpu 



Since commit 89aafd67 ("sched/fair: Use prev instead of new target as recent_used_cpu"),
p->recent_used_cpu is unconditionnaly set with prev.

Fixes: 89aafd67 ("sched/fair: Use prev instead of new target as recent_used_cpu")
Signed-off-by: default avatarVincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: default avatarMel Gorman <mgorman@suse.de>
Link: https://lkml.kernel.org/r/20210928103544.27489-1-vincent.guittot@linaro.org
parent b945efcd

kernel/sched/fair.c

+0 −5
Original line number Diff line number Diff line
@@ -6413,11 +6413,6 @@ static int select_idle_sibling(struct task_struct *p, int prev, int target) 
	    (available_idle_cpu(recent_used_cpu) || sched_idle_cpu(recent_used_cpu)) &&

	    cpumask_test_cpu(p->recent_used_cpu, p->cpus_ptr) &&

	    asym_fits_capacity(task_util, recent_used_cpu)) {

		/*

		 * Replace recent_used_cpu with prev as it is a potential

		 * candidate for the next wake:

		 */

		p->recent_used_cpu = prev;

		return recent_used_cpu;

	}