[v4,2/3] sched/fair: trigger asym_packing during idle load balance

Message ID 1547747049-6320-3-git-send-email-vincent.guittot@linaro.org
State New
Headers show
Series
  • sched/fair: some fixes for asym_packing
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Commit Message

Vincent Guittot Jan. 17, 2019, 5:44 p.m.
newly idle load balance is not always triggered when a cpu becomes idle.
This prevent the scheduler to get a chance to migrate task for asym packing.
Enable active migration because of asym packing during idle load balance too.

Signed-off-by: Vincent Guittot <vincent.guittot@linaro.org>

---
 kernel/sched/fair.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.7.4

Patch

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1e4bed4..bd3b0ac 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -8853,7 +8853,7 @@  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