Received: by 10.192.165.156 with SMTP id m28csp1706744imm; Thu, 12 Apr 2018 01:59:54 -0700 (PDT) X-Google-Smtp-Source: AIpwx49v57GNcmN3LYu18hyCkju9WT2qUDhYbEXpMFjWe7g11+/Z99E0uOWZ+9IJ5J+/rI2IGo/d X-Received: by 10.101.101.66 with SMTP id a2mr41285pgw.223.1523523594253; Thu, 12 Apr 2018 01:59:54 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1523523594; cv=none; d=google.com; s=arc-20160816; b=kK5zZcD65wI/VSMtRz+ee7QvkHM9wjSPyxKBmbDjVbF6qRCyepIutkGyhzTwaaqCg8 obxpb/pXiDmWsIvZ5Eo9ZyvdiSEr2DBg4nYfbZeuwjcEiSn7DLzhfQiCLz/vZ/Sp4lMQ BcxPPXjDCt6LbpCmVsmQxUe2gr1HSy0Y80P0ZbIh9uacdccDCRdi1ZxeKeFR3mBE/G4K unF+P6CImfNjhEjOEvcr/RMGM1htt8W2W1gG5X/lxQT6uujPwEi3U35y8384TzhXYakQ H1KUKcqcGgFI4ine/OFFF6I8Xf/D7Q95tdvl6uTiQBrK3YxxPmeABy/Nj0UX9HdxvnvQ 6hWg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:in-reply-to :mime-version:user-agent:date:message-id:from:references:cc:to :subject:arc-authentication-results; bh=jkoPxi9+e6QSPzLC8FViQOdLlbc0NgOegUL8VfvHdpo=; b=lFkGWWiHPWBHQlIeS9MyHyfG8Cg7Y49IBBhLPB/hgkseeVZ+LpE8EyjG8Eissskwtr /WafpzwEw7f1eLnNQ8hE9V4Au7NATw8JbYUUEaOCbp3ORXfrrXD2HkXWWVC6QjI8rACg D0RnjlhhgndmAzENfb0D9Hk1JKhElysZ1Get9Ohtsi8oURDNKgzGLgTT4EWMTuOYG+0i jxqQZaG0jsSxzqh8ZY87YWWoHyB3i/ErjCMGpuFE51CpyivfO2e41NyP+Pjlw9H52NfG mj+3dqsypP5L57gqtDXera3PX72uDUCm5ZjrjXaOd+uiY9RIRUHolWwgiZgkAIQ3rai7 24Kg== 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 t190si1934167pgd.101.2018.04.12.01.59.17; Thu, 12 Apr 2018 01:59:54 -0700 (PDT) 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 S1752383AbeDLI4A (ORCPT + 99 others); Thu, 12 Apr 2018 04:56:00 -0400 Received: from szxga04-in.huawei.com ([45.249.212.190]:7168 "EHLO huawei.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1751589AbeDLIz7 (ORCPT ); Thu, 12 Apr 2018 04:55:59 -0400 Received: from DGGEMS409-HUB.china.huawei.com (unknown [172.30.72.59]) by Forcepoint Email with ESMTP id A73DB8324D0C7; Thu, 12 Apr 2018 16:55:44 +0800 (CST) Received: from [127.0.0.1] (10.184.31.195) by DGGEMS409-HUB.china.huawei.com (10.3.19.209) with Microsoft SMTP Server id 14.3.361.1; Thu, 12 Apr 2018 16:55:35 +0800 Subject: Re: [PATCH] sched/rt.c: pick and check task if double_lock_balance() unlock the rq To: Peter Zijlstra , Steven Rostedt CC: Zhou Chengming , , , References: <1505112709-102019-1-git-send-email-zhouchengming1@huawei.com> <20180410180546.4159134c@gandalf.local.home> <20180411102622.GK4082@hirez.programming.kicks-ass.net> From: "Libin (Huawei)" Message-ID: Date: Thu, 12 Apr 2018 16:54:11 +0800 User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:52.0) Gecko/20100101 Thunderbird/52.6.0 MIME-Version: 1.0 In-Reply-To: <20180411102622.GK4082@hirez.programming.kicks-ass.net> Content-Type: text/plain; charset="gbk"; format=flowed Content-Transfer-Encoding: 8bit X-Originating-IP: [10.184.31.195] X-CFilter-Loop: Reflected Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org ?? 2018/4/11 18:26, Peter Zijlstra ะด??: > On Tue, Apr 10, 2018 at 06:05:46PM -0400, Steven Rostedt wrote: >> >> Peter, >> >> Going through my inbox, I stumbled across this one. And it doesn't >> appear to be addressed. >> >> I think this patch is a reasonable solution. > > Urgh, yeah, also seem to have forgotten about it. The proposed solution > is in fact simpler than the existing code. Also, I think deadline.c has > the exact same problem. > > Zhou, could you respin and fix both? Thanks for your reply, and I will fix the deadline.c and resend the two patches together. Thanks, Li Bin > >