From: Vincent Guittot Date: Tue, 28 Sep 2021 10:35:44 +0000 (+0200) Subject: sched/fair: Removed useless update of p->recent_used_cpu X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=41c2dba3885e417c8bb3f0720b5f21dcb58563b5;p=linux.git sched/fair: Removed useless update of p->recent_used_cpu [ Upstream commit a7ba894821b6ade7bb420455f87020b2838d6180 ] Since commit 89aafd67f28c ("sched/fair: Use prev instead of new target as recent_used_cpu"), p->recent_used_cpu is unconditionnaly set with prev. Fixes: 89aafd67f28c ("sched/fair: Use prev instead of new target as recent_used_cpu") Signed-off-by: Vincent Guittot Signed-off-by: Peter Zijlstra (Intel) Acked-by: Mel Gorman Link: https://lkml.kernel.org/r/20210928103544.27489-1-vincent.guittot@linaro.org Stable-dep-of: a2e7f03ed28f ("sched/uclamp: Make asym_fits_capacity() use util_fits_cpu()") Signed-off-by: Sasha Levin --- diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 9e2c6e38342c6..d706c1a8453ab 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -6595,11 +6595,6 @@ 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; }