diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index cea5b82242ee54dcdae91c396033cbaef306eed7..4f6356e70ad65abdfabff76970fcefa84be38938 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1501,7 +1501,8 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync) */ if (sched_feat(LAST_BUDDY) && likely(se->on_rq && curr != rq->idle)) set_last_buddy(se); - set_next_buddy(pse); + if (sched_feat(NEXT_BUDDY)) + set_next_buddy(pse); /* * We can come here with TIF_NEED_RESCHED already set from new task diff --git a/kernel/sched_features.h b/kernel/sched_features.h index 07c8250b404c7e3475cec1578649eda9cee8b94e..6174c1233993cba9d1e87336e7ed38569384f0bb 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -14,5 +14,6 @@ SCHED_FEAT(LB_WAKEUP_UPDATE, 1) SCHED_FEAT(ASYM_EFF_LOAD, 1) SCHED_FEAT(WAKEUP_SYNC, 0) SCHED_FEAT(WAKEUP_OVERLAP, 0) +SCHED_FEAT(NEXT_BUDDY, 1) SCHED_FEAT(LAST_BUDDY, 1) SCHED_FEAT(OWNER_SPIN, 1)