Make rt_rq available for pick_next_task(). Otherwise, their tasks
stay prisoned long time till dead cpu becomes alive again.
Signed-off-by: Kirill Tkhai <ktk...@parallels.com>
CC: Konstantin Khorenko <khore...@parallels.com>
CC: Ben Segall <bseg...@google.com>
CC: Paul Turner <p...@google.com>
CC: Srikar Dronamraju <sri...@linux.vnet.ibm.com>
CC: Mike Galbraith <umgwanakikb...@gmail.com>
CC: Peter Zijlstra <pet...@infradead.org>
CC: Ingo Molnar <mi...@kernel.org>
---
kernel/sched/rt.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/kernel/sched/rt.c b/kernel/sched/rt.c
index a490831..671a8b5 100644
--- a/kernel/sched/rt.c
+++ b/kernel/sched/rt.c
@@ -740,6 +740,9 @@ static void __disable_runtime(struct rq *rq)
rt_rq->rt_throttled = 0;
raw_spin_unlock(&rt_rq->rt_runtime_lock);
raw_spin_unlock(&rt_b->rt_runtime_lock);
+
+ /* Make rt_rq available for pick_next_task() */
+ sched_rt_rq_enqueue(rt_rq);
}
}
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