From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161451AbaJ3Wjz (ORCPT ); Thu, 30 Oct 2014 18:39:55 -0400 Received: from mga01.intel.com ([192.55.52.88]:46204 "EHLO mga01.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1161393AbaJ3Wjx (ORCPT ); Thu, 30 Oct 2014 18:39:53 -0400 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.07,289,1413270000"; d="scan'208";a="623777824" From: Wanpeng Li To: Ingo Molnar , Peter Zijlstra Cc: Juri Lelli , Kirill Tkhai , juri.lelli@gmail.com, linux-kernel@vger.kernel.org, Wanpeng Li Subject: [PATCH v3 4/6] sched/deadline: push task away if the deadline is equal to curr during wakeup Date: Fri, 31 Oct 2014 06:39:34 +0800 Message-Id: <1414708776-124078-4-git-send-email-wanpeng.li@linux.intel.com> X-Mailer: git-send-email 1.7.1 In-Reply-To: <1414708776-124078-1-git-send-email-wanpeng.li@linux.intel.com> References: <1414708776-124078-1-git-send-email-wanpeng.li@linux.intel.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org This patch pushes task away if the dealine of the task is equal to current during wake up. The same behavior as rt class. Signed-off-by: Wanpeng Li --- kernel/sched/deadline.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index 4c5fdf5..1c09751 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1511,7 +1511,7 @@ static void task_woken_dl(struct rq *rq, struct task_struct *p) p->nr_cpus_allowed > 1 && dl_task(rq->curr) && (rq->curr->nr_cpus_allowed < 2 || - dl_entity_preempt(&rq->curr->dl, &p->dl))) { + !dl_entity_preempt(&p->dl, &rq->curr->dl))) { push_dl_tasks(rq); } } -- 1.9.1