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Date: Tue, 24 Jun 2014 11:53:58 +0400 From: Kirill Tkhai <ktkhai@...allels.com> To: <linux-kernel@...r.kernel.org> CC: Peter Zijlstra <peterz@...radead.org>, Ingo Molnar <mingo@...nel.org>, <tkhai@...dex.ru>, Srikar Dronamraju <srikar@...ux.vnet.ibm.com>, "Mike Galbraith" <umgwanakikbuti@...il.com>, <khorenko@...allels.com>, Ben Segall <bsegall@...gle.com>, Paul Turner <pjt@...gle.com> Subject: [PATCH v2 2/3] sched/rt: __disable_runtime: Enqueue just unthrottled rt_rq back on the stack 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 <ktkhai@...allels.com> CC: Konstantin Khorenko <khorenko@...allels.com> CC: Ben Segall <bsegall@...gle.com> CC: Paul Turner <pjt@...gle.com> CC: Srikar Dronamraju <srikar@...ux.vnet.ibm.com> CC: Mike Galbraith <umgwanakikbuti@...il.com> CC: Peter Zijlstra <peterz@...radead.org> CC: Ingo Molnar <mingo@...nel.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); } } -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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