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sched: rt: dont stop the period timer when there are tasks wanting to run
author
Peter Zijlstra
<a.p.zijlstra@chello.nl>
Thu, 19 Jun 2008 12:22:28 +0000
(14:22 +0200)
committer
Ingo Molnar
<mingo@elte.hu>
Fri, 20 Jun 2008 08:26:02 +0000
(10:26 +0200)
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>
kernel/sched_rt.c
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diff --git
a/kernel/sched_rt.c
b/kernel/sched_rt.c
index
61d5211
..
bd90c8b
100644
(file)
--- 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);