From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755474AbbFSSDc (ORCPT ); Fri, 19 Jun 2015 14:03:32 -0400 Received: from terminus.zytor.com ([198.137.202.10]:49369 "EHLO terminus.zytor.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753480AbbFSSD2 (ORCPT ); Fri, 19 Jun 2015 14:03:28 -0400 Date: Fri, 19 Jun 2015 11:02:46 -0700 From: tip-bot for Wanpeng Li Message-ID: Cc: mingo@kernel.org, tglx@linutronix.de, linux-kernel@vger.kernel.org, wanpeng.li@linux.intel.com, peterz@infradead.org, torvalds@linux-foundation.org, juri.lelli@arm.com, bp@alien8.de, akpm@linux-foundation.org, hpa@zytor.com Reply-To: mingo@kernel.org, tglx@linutronix.de, peterz@infradead.org, linux-kernel@vger.kernel.org, wanpeng.li@linux.intel.com, juri.lelli@arm.com, torvalds@linux-foundation.org, hpa@zytor.com, akpm@linux-foundation.org, bp@alien8.de In-Reply-To: <1431496867-4194-6-git-send-email-wanpeng.li@linux.intel.com> References: <1431496867-4194-6-git-send-email-wanpeng.li@linux.intel.com> To: linux-tip-commits@vger.kernel.org Subject: [tip:sched/core] sched: Remove superfluous resetting of the p-> dl_throttled flag Git-Commit-ID: 6713c3aa7f63626c0cecf9c509fb48d885b2dd12 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: 6713c3aa7f63626c0cecf9c509fb48d885b2dd12 Gitweb: http://git.kernel.org/tip/6713c3aa7f63626c0cecf9c509fb48d885b2dd12 Author: Wanpeng Li AuthorDate: Wed, 13 May 2015 14:01:06 +0800 Committer: Ingo Molnar CommitDate: Fri, 19 Jun 2015 10:06:47 +0200 sched: Remove superfluous resetting of the p->dl_throttled flag Resetting the p->dl_throttled flag in rt_mutex_setprio() (for a task that is going to be boosted) is superfluous, as the natural place to do so is in replenish_dl_entity(). If the task was on the runqueue and it is boosted by a DL task, it will be enqueued back with ENQUEUE_REPLENISH flag set, which can guarantee that dl_throttled is reset in replenish_dl_entity(). This patch drops the resetting of throttled status in function rt_mutex_setprio(). Signed-off-by: Wanpeng Li Signed-off-by: Peter Zijlstra (Intel) Cc: Andrew Morton Cc: Borislav Petkov Cc: H. Peter Anvin Cc: Juri Lelli Cc: Linus Torvalds Cc: Peter Zijlstra Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/1431496867-4194-6-git-send-email-wanpeng.li@linux.intel.com Signed-off-by: Ingo Molnar --- kernel/sched/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index 1428c7c..10338ce 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -3099,7 +3099,6 @@ void rt_mutex_setprio(struct task_struct *p, int prio) if (!dl_prio(p->normal_prio) || (pi_task && dl_entity_preempt(&pi_task->dl, &p->dl))) { p->dl.dl_boosted = 1; - p->dl.dl_throttled = 0; enqueue_flag = ENQUEUE_REPLENISH; } else p->dl.dl_boosted = 0; -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in Please read the FAQ at http://www.tux.org/lkml/