From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753319AbbC0Lom (ORCPT ); Fri, 27 Mar 2015 07:44:42 -0400 Received: from terminus.zytor.com ([198.137.202.10]:37194 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753281AbbC0LoV (ORCPT ); Fri, 27 Mar 2015 07:44:21 -0400 Date: Fri, 27 Mar 2015 04:43:48 -0700 From: tip-bot for Wanpeng Li Message-ID: Cc: linux-kernel@vger.kernel.org, juri.lelli@arm.com, wanpeng.li@linux.intel.com, peterz@infradead.org, mingo@kernel.org, hpa@zytor.com, tglx@linutronix.de Reply-To: mingo@kernel.org, tglx@linutronix.de, hpa@zytor.com, juri.lelli@arm.com, wanpeng.li@linux.intel.com, peterz@infradead.org, linux-kernel@vger.kernel.org In-Reply-To: <1426590931-4639-1-git-send-email-wanpeng.li@linux.intel.com> References: <1426590931-4639-1-git-send-email-wanpeng.li@linux.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/core] sched/deadline: Avoid a superfluous check Git-Commit-ID: bd4bde14b93cce8fa77765ff709e0be55abdba2c X-Mailer: tip-git-log-daemon Robot-ID: Robot-Unsubscribe: Contact to get blacklisted from these emails MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain; charset=UTF-8 Content-Disposition: inline Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Commit-ID: bd4bde14b93cce8fa77765ff709e0be55abdba2c Gitweb: http://git.kernel.org/tip/bd4bde14b93cce8fa77765ff709e0be55abdba2c Author: Wanpeng Li AuthorDate: Tue, 17 Mar 2015 19:15:30 +0800 Committer: Ingo Molnar CommitDate: Fri, 27 Mar 2015 09:36:12 +0100 sched/deadline: Avoid a superfluous check Since commit 40767b0dc768 ("sched/deadline: Fix deadline parameter modification handling") we clear the thottled state when switching from a dl task, therefore we should never find it set in switching to a dl task. Signed-off-by: Wanpeng Li [ Improved the changelog. ] Signed-off-by: Peter Zijlstra (Intel) Acked-by: Juri Lelli Link: http://lkml.kernel.org/r/1426590931-4639-1-git-send-email-wanpeng.li@linux.intel.com Signed-off-by: Ingo Molnar --- kernel/sched/deadline.c | 8 -------- 1 file changed, 8 deletions(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 0a81a95..24c18dc 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1665,14 +1665,6 @@ static void switched_to_dl(struct rq *rq, struct task_struct *p) { int check_resched = 1; - /* - * If p is throttled, don't consider the possibility - * of preempting rq->curr, the check will be done right - * after its runtime will get replenished. - */ - if (unlikely(p->dl.dl_throttled)) - return; - if (task_on_rq_queued(p) && rq->curr != p) { #ifdef CONFIG_SMP if (p->nr_cpus_allowed > 1 && rq->dl.overloaded &&