From e6b1b2c9c0461c4e0971ed905ce3cda6512ee82a Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Fri, 11 Sep 2009 11:59:22 +0200 Subject: [PATCH] sched: Split WAKEUP_OVERLAP It consists of two conditions, split them out in separate toggles so we can test them independently. Signed-off-by: Peter Zijlstra LKML-Reference: Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 7 ++++--- kernel/sched_features.h | 1 + 2 files changed, 5 insertions(+), 3 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index aa7f84121016..cea5b82242ee 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -1526,9 +1526,10 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p, int sync) if (!sched_feat(WAKEUP_PREEMPT)) return; - if (sched_feat(WAKEUP_OVERLAP) && (sync || - (se->avg_overlap < sysctl_sched_migration_cost && - pse->avg_overlap < sysctl_sched_migration_cost))) { + if ((sched_feat(WAKEUP_SYNC) && sync) || + (sched_feat(WAKEUP_OVERLAP) && + (se->avg_overlap < sysctl_sched_migration_cost && + pse->avg_overlap < sysctl_sched_migration_cost))) { resched_task(curr); return; } diff --git a/kernel/sched_features.h b/kernel/sched_features.h index e2dc63a5815d..07c8250b404c 100644 --- a/kernel/sched_features.h +++ b/kernel/sched_features.h @@ -12,6 +12,7 @@ SCHED_FEAT(ASYM_GRAN, 1) SCHED_FEAT(LB_BIAS, 1) SCHED_FEAT(LB_WAKEUP_UPDATE, 1) SCHED_FEAT(ASYM_EFF_LOAD, 1) +SCHED_FEAT(WAKEUP_SYNC, 0) SCHED_FEAT(WAKEUP_OVERLAP, 0) SCHED_FEAT(LAST_BUDDY, 1) SCHED_FEAT(OWNER_SPIN, 1) -- 2.20.1