Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754505AbcDALOi (ORCPT ); Fri, 1 Apr 2016 07:14:38 -0400 Received: from mx1.redhat.com ([209.132.183.28]:54441 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753640AbcDALOh (ORCPT ); Fri, 1 Apr 2016 07:14:37 -0400 From: Xunlei Pang To: linux-kernel@vger.kernel.org Cc: Peter Zijlstra , Juri Lelli , Ingo Molnar , Steven Rostedt , Xunlei Pang Subject: [PATCH] sched/deadline: No need to check NULL later_mask Date: Fri, 1 Apr 2016 19:13:18 +0800 Message-Id: <1459509198-26543-1-git-send-email-xlpang@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 712 Lines: 26 Unlike rt tasks, we (should) have no deadline tasks in booting phase before the mask is allocated, so we can safely remove the check. Signed-off-by: Xunlei Pang --- kernel/sched/deadline.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/kernel/sched/deadline.c b/kernel/sched/deadline.c index fb98160..7b8aa93 100644 --- a/kernel/sched/deadline.c +++ b/kernel/sched/deadline.c @@ -1295,10 +1295,6 @@ static int find_later_rq(struct task_struct *task) int this_cpu = smp_processor_id(); int best_cpu, cpu = task_cpu(task); - /* Make sure the mask is initialized first */ - if (unlikely(!later_mask)) - return -1; - if (task->nr_cpus_allowed == 1) return -1; -- 1.8.3.1