diff options
| -rw-r--r-- | kernel/sched/rt.c | 15 |
1 files changed, 10 insertions, 5 deletions
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c index 295da737b6fe..2a4e8dffbd6b 100644 --- a/kernel/sched/rt.c +++ b/kernel/sched/rt.c @@ -1985,6 +1985,8 @@ static void watchdog(struct rq *rq, struct task_struct *p) static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued) { + struct sched_rt_entity *rt_se = &p->rt; + update_curr_rt(rq); watchdog(rq, p); @@ -2002,12 +2004,15 @@ static void task_tick_rt(struct rq *rq, struct task_struct *p, int queued) p->rt.time_slice = RR_TIMESLICE; /* - * Requeue to the end of queue if we are not the only element - * on the queue: + * Requeue to the end of queue if we (and all of our ancestors) are the + * only element on the queue */ - if (p->rt.run_list.prev != p->rt.run_list.next) { - requeue_task_rt(rq, p, 0); - set_tsk_need_resched(p); + for_each_sched_rt_entity(rt_se) { + if (rt_se->run_list.prev != rt_se->run_list.next) { + requeue_task_rt(rq, p, 0); + set_tsk_need_resched(p); + return; + } } } |