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-rw-r--r--kernel/sched_fair.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/kernel/sched_fair.c b/kernel/sched_fair.c
index d558716a9ad..6c361472cc7 100644
--- a/kernel/sched_fair.c
+++ b/kernel/sched_fair.c
@@ -837,7 +837,7 @@ 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, gran;
+ unsigned long gran;
if (unlikely(rt_prio(p->prio))) {
update_rq_clock(rq);
@@ -860,12 +860,11 @@ static void check_preempt_wakeup(struct rq *rq, struct task_struct *p)
pse = parent_entity(pse);
}
- 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 > gran)
+ if (pse->vruntime + gran < se->vruntime)
resched_task(curr);
}