diff options
Diffstat (limited to 'kernel/sched')
| -rw-r--r-- | kernel/sched/deadline.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 3862a28cd05d..c19c1883d695 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1527,12 +1527,15 @@ static void enqueue_task_dl(struct rq *rq, struct task_struct *p, int flags) pi_se = &pi_task->dl; } else if (!dl_prio(p->normal_prio)) { /* - * Special case in which we have a !SCHED_DEADLINE task - * that is going to be deboosted, but exceeds its - * runtime while doing so. No point in replenishing - * it, as it's going to return back to its original - * scheduling class after this. + * Special case in which we have a !SCHED_DEADLINE task that is going + * to be deboosted, but exceeds its runtime while doing so. No point in + * replenishing it, as it's going to return back to its original + * scheduling class after this. If it has been throttled, we need to + * clear the flag, otherwise the task may wake up as throttled after + * being boosted again with no means to replenish the runtime and clear + * the throttle. */ + p->dl.dl_throttled = 0; BUG_ON(!p->dl.dl_boosted || flags != ENQUEUE_REPLENISH); return; } |