Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755369AbaFYIT4 (ORCPT ); Wed, 25 Jun 2014 04:19:56 -0400 Received: from relay.parallels.com ([195.214.232.42]:35636 "EHLO relay.parallels.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754602AbaFYITw (ORCPT ); Wed, 25 Jun 2014 04:19:52 -0400 Message-ID: <1403684388.3462.43.camel@tkhai> Subject: [PATCH v3 2/3] sched/rt: __disable_runtime: Enqueue just unthrottled rt_rq back on the stack From: Kirill Tkhai To: CC: Peter Zijlstra , Ingo Molnar , , Srikar Dronamraju , "Mike Galbraith" , , Ben Segall , Paul Turner Date: Wed, 25 Jun 2014 12:19:48 +0400 In-Reply-To: <20140625081502.2861.12526.stgit@tkhai> References: <20140625081502.2861.12526.stgit@tkhai> Organization: Parallels Content-Type: text/plain; charset="UTF-8" X-Mailer: Evolution 3.8.5-2+b3 MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Originating-IP: [10.30.26.172] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 CC: Konstantin Khorenko CC: Ben Segall CC: Paul Turner CC: Srikar Dronamraju CC: Mike Galbraith CC: Peter Zijlstra CC: Ingo Molnar --- 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@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/