sched: rt: dont stop the period timer when there are tasks wanting to run

So if the group ever gets throttled, it will never wake up again.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: "Daniel K." <dk@uw.no>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Reported-by: "Daniel K." <dk@uw.no>

1 files changed, 2 insertions, 1 deletions

diff --git a/kernel/sched_rt.c b/kernel/sched_rt.c
index 61d52112289c..bd90c8bb0739 100644
--- a/kernel/sched_rt.c
+++ b/kernel/sched_rt.c
@@ -412,7 +412,8 @@ static int do_sched_rt_period_timer(struct rt_bandwidth *rt_b, int overrun)
                         if (rt_rq->rt_time || rt_rq->rt_nr_running)
                                 idle = 0;
                         spin_unlock(&rt_rq->rt_runtime_lock);
-                }
+                } else if (rt_rq->rt_nr_running)
+                        idle = 0;
 
                 if (enqueue)
                         sched_rt_rq_enqueue(rt_rq);