From 810e95ccd58d91369191aa4ecc9e6d4a10d8d0c8 Mon Sep 17 00:00:00 2001 From: Peter Zijlstra Date: Mon, 15 Oct 2007 17:00:14 +0200 Subject: sched: another wakeup_granularity fix unit mis-match: wakeup_gran was used against a vruntime Signed-off-by: Peter Zijlstra Signed-off-by: Ingo Molnar --- kernel/sched_fair.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-) diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c index f5f491762e35..3ecbfd0902d8 100644 --- a/kernel/sched_fair.c +++ b/kernel/sched_fair.c @@ -818,7 +818,7 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p) struct task_struct *curr = rq->curr; struct cfs_rq *cfs_rq = task_cfs_rq(curr); struct sched_entity *se = &curr->se, *pse = &p->se; - s64 delta; + s64 delta, gran; if (unlikely(rt_prio(p->prio))) { update_rq_clock(rq); @@ -833,8 +833,11 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p) } delta = se->vruntime - pse->vruntime; + gran = sysctl_sched_wakeup_granularity; + if (unlikely(se->load.weight != NICE_0_LOAD)) + gran = calc_delta_fair(gran, &se->load); - if (delta > (s64)sysctl_sched_wakeup_granularity) + if (delta > gran) resched_task(curr); } -- cgit v1.2.3-59-g8ed1b