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-rw-r--r--kernel/sched/fair.c27
1 files changed, 7 insertions, 20 deletions
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 225b31aaee55..c157d4860a3b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -1247,7 +1247,7 @@ static void update_curr(struct cfs_rq *cfs_rq)
account_cfs_rq_runtime(cfs_rq, delta_exec);
- if (rq->nr_running == 1)
+ if (cfs_rq->nr_running == 1)
return;
if (resched || did_preempt_short(cfs_rq, curr)) {
@@ -6058,10 +6058,13 @@ void unthrottle_cfs_rq(struct cfs_rq *cfs_rq)
for_each_sched_entity(se) {
struct cfs_rq *qcfs_rq = cfs_rq_of(se);
- if (se->on_rq) {
- SCHED_WARN_ON(se->sched_delayed);
+ /* Handle any unfinished DELAY_DEQUEUE business first. */
+ if (se->sched_delayed) {
+ int flags = DEQUEUE_SLEEP | DEQUEUE_DELAYED;
+
+ dequeue_entity(qcfs_rq, se, flags);
+ } else if (se->on_rq)
break;
- }
enqueue_entity(qcfs_rq, se, ENQUEUE_WAKEUP);
if (cfs_rq_is_idle(group_cfs_rq(se)))
@@ -13174,22 +13177,6 @@ static void attach_task_cfs_rq(struct task_struct *p)
static void switched_from_fair(struct rq *rq, struct task_struct *p)
{
detach_task_cfs_rq(p);
- /*
- * Since this is called after changing class, this is a little weird
- * and we cannot use DEQUEUE_DELAYED.
- */
- if (p->se.sched_delayed) {
- /* First, dequeue it from its new class' structures */
- dequeue_task(rq, p, DEQUEUE_NOCLOCK | DEQUEUE_SLEEP);
- /*
- * Now, clean up the fair_sched_class side of things
- * related to sched_delayed being true and that wasn't done
- * due to the generic dequeue not using DEQUEUE_DELAYED.
- */
- finish_delayed_dequeue_entity(&p->se);
- p->se.rel_deadline = 0;
- __block_task(rq, p);
- }
}
static void switched_to_fair(struct rq *rq, struct task_struct *p)