Received: by 2002:ac0:946b:0:0:0:0:0 with SMTP id j40csp1234509imj; Thu, 14 Feb 2019 03:24:39 -0800 (PST) X-Google-Smtp-Source: AHgI3IZrnVcQA7IBDe3IHMIEdOxEALWXLBFRkoNYGzyvnumtuUCIZuR3iCTsH5tuHjvyH8PKEfKm X-Received: by 2002:aa7:8d57:: with SMTP id s23mr3446582pfe.237.1550143479189; Thu, 14 Feb 2019 03:24:39 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1550143479; cv=none; d=google.com; s=arc-20160816; b=0UCMOJOpSfGbeMPMlQu8b2vycMdwslUCA/Snr3z3eqA8edl8nkJkPSwQ5ockcapxlC s4CRRCgfSNGOds/2WRYPFWTrFHygDpD5z9m8Z6rrTRBO8dlHjuGpQon0gQDK7CAlwggp Nv35d+cBe5ZtEFpwmyNVZ49sxZS3+Tz1ue/UHKjWF48Pkpnds0/rr5a+jS+Uf0L0aBpR Hew3VYZPMmO2y8EbhYLoFwgUwu/cGnKsBQxzs50MPA9R63YmXZneEAlZd+5S4mYsZ13D xwL2zK9ZR5fXMDHFI+oS5333gJ/xJCHvt4Htc95YiRu3f11/3x+zyOcdvDcOFGkwNO0c sZ0g== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:message-id:date:subject:cc:to:from; bh=ZNdVam/n2TXtUFfMWSMcrDEdPcv0pvs9JoWM4ve+8vU=; b=uDviMvKpRmRR8EpCQewWadpI8mjK0YtJo/QYUGxADxOoEK8j2JSG5FJo1Nk0OT841U Oz9kPwsieOPRCtRTa9SeU/jo4VguYQ7NBozbIFXqDC6UUmLDAIZOXcVIYt8Vllthx3HI p9+Fxfq4F4kJwHJlS9bX+ar1CG49mOqXqL4AdaMjbGfx3BrSAf+1LNq9F+6KnxNN2zdd W/DAoqLXEW/+ajILObzRSBofdsZUO7egL0dXDLJDU73uFk7qO+J5nqQ5yiZT/HBaOlle y961HHPnLVAByJfAz8iy0jdRmPXgMdWHMU42pdDoEfjq5+WoAfVpVekLhJANNRRiQoXr 0E+g== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id q16si2136088pgh.185.2019.02.14.03.24.23; Thu, 14 Feb 2019 03:24:39 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2405877AbfBNGmH (ORCPT + 99 others); Thu, 14 Feb 2019 01:42:07 -0500 Received: from out1.zte.com.cn ([202.103.147.172]:36230 "EHLO mxct.zte.com.cn" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2394037AbfBNGmH (ORCPT ); Thu, 14 Feb 2019 01:42:07 -0500 Received: from mse01.zte.com.cn (unknown [10.30.3.20]) by Forcepoint Email with ESMTPS id 754503B389F73D10729B; Thu, 14 Feb 2019 14:42:03 +0800 (CST) Received: from notes_smtp.zte.com.cn ([10.30.1.239]) by mse01.zte.com.cn with ESMTP id x1E6ftZp051506; Thu, 14 Feb 2019 14:41:55 +0800 (GMT-8) (envelope-from huang.zijiang@zte.com.cn) Received: from fox-host8.localdomain ([10.74.120.8]) by szsmtp06.zte.com.cn (Lotus Domino Release 8.5.3FP6) with ESMTP id 2019021414422509-26036285 ; Thu, 14 Feb 2019 14:42:25 +0800 From: Huang Zijiang To: mingo@redhat.com Cc: peterz@infradead.org, linux-kernel@vger.kernel.org, wang.yi59@zte.com.cn, Huang Zijiang Subject: [PATCH] sched/core: Remove BUG_ON() Date: Thu, 14 Feb 2019 14:42:37 +0800 Message-Id: <1550126557-28530-1-git-send-email-huang.zijiang@zte.com.cn> X-Mailer: git-send-email 1.8.3.1 X-MIMETrack: Itemize by SMTP Server on SZSMTP06/server/zte_ltd(Release 8.5.3FP6|November 21, 2013) at 2019-02-14 14:42:25, Serialize by Router on notes_smtp/zte_ltd(Release 9.0.1FP7|August 17, 2016) at 2019-02-14 14:41:43, Serialize complete at 2019-02-14 14:41:43 X-MAIL: mse01.zte.com.cn x1E6ftZp051506 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org pick_next_task is never return NULL because idle task will return when cpu is idle. Signed-off-by: Huang Zijiang --- kernel/sched/core.c | 1 - 1 file changed, 1 deletion(-) diff --git a/kernel/sched/core.c b/kernel/sched/core.c index dbe9a3f..1de1a85 100644 --- a/kernel/sched/core.c +++ b/kernel/sched/core.c @@ -5624,7 +5624,6 @@ static void migrate_tasks(struct rq *dead_rq, struct rq_flags *rf) * * pick_next_task() assumes pinned rq->lock: * */ next = pick_next_task(rq, &fake_task, rf); - BUG_ON(!next); put_prev_task(rq, next); /* -- 1.8.3.1