From: Vincent Guittot <vincent.guittot@linaro.org> Date: Fri, 14 Dec 2018 16:01:56 +0000 (+0100) Subject: sched/fair: Trigger asym_packing during idle load balance X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=a062d16449c0d2e00d5a54123c9cfadea3f6c763;p=linux.git sched/fair: Trigger asym_packing during idle load balance Newly idle load balancing is not always triggered when a CPU becomes idle. This prevents the scheduler from getting a chance to migrate the task for asym packing. Enable active migration during idle load balance too. Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: valentin.schneider@arm.com Cc: linux-kernel@vger.kernel.org Signed-off-by: Ingo Molnar <mingo@kernel.org> --- diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c index 3b61e19b504a8..9693cf2ea9542 100644 --- a/kernel/sched/fair.c +++ b/kernel/sched/fair.c @@ -8832,7 +8832,7 @@ static int need_active_balance(struct lb_env *env) { struct sched_domain *sd = env->sd; - if (env->idle == CPU_NEWLY_IDLE) { + if (env->idle != CPU_NOT_IDLE) { /* * ASYM_PACKING needs to force migrate tasks from busy but