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sched/deadline: Do not try to push tasks if pinned task switches to dl
[cascardo/linux.git]
/
kernel
/
sched
/
deadline.c
diff --git
a/kernel/sched/deadline.c
b/kernel/sched/deadline.c
index
5285332
..
9d1e76a
100644
(file)
--- a/
kernel/sched/deadline.c
+++ b/
kernel/sched/deadline.c
@@
-1622,7
+1622,8
@@
static void switched_to_dl(struct rq *rq, struct task_struct *p)
if (task_on_rq_queued(p) && rq->curr != p) {
#ifdef CONFIG_SMP
if (task_on_rq_queued(p) && rq->curr != p) {
#ifdef CONFIG_SMP
- if (rq->dl.overloaded && push_dl_task(rq) && rq != task_rq(p))
+ if (p->nr_cpus_allowed > 1 && rq->dl.overloaded &&
+ push_dl_task(rq) && rq != task_rq(p))
/* Only reschedule if pushing failed */
check_resched = 0;
#endif /* CONFIG_SMP */
/* Only reschedule if pushing failed */
check_resched = 0;
#endif /* CONFIG_SMP */