Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755792AbcCCCR4 (ORCPT ); Wed, 2 Mar 2016 21:17:56 -0500 Received: from cn.fujitsu.com ([59.151.112.132]:34386 "EHLO heian.cn.fujitsu.com" rhost-flags-OK-FAIL-OK-FAIL) by vger.kernel.org with ESMTP id S1752046AbcCCCRy (ORCPT ); Wed, 2 Mar 2016 21:17:54 -0500 X-IronPort-AV: E=Sophos;i="5.22,518,1449504000"; d="scan'208";a="4170506" Message-ID: <56D79E35.7030000@cn.fujitsu.com> Date: Thu, 3 Mar 2016 10:15:17 +0800 From: Zhu Guihua User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 MIME-Version: 1.0 To: "Rafael J. Wysocki" CC: , Tejun Heo , , Ingo Molnar , Andrew Morton , "Rafael J. Wysocki" , "H. Peter Anvin" , , , , , , Len Brown , Len Brown , Thomas Gleixner , , , ACPI Devel Maling List , Linux Kernel Mailing List , Linux Memory Management List Subject: Re: [RESEND PATCH v5 0/5] Make cpuid <-> nodeid mapping persistent References: <1456969327-20011-1-git-send-email-zhugh.fnst@cn.fujitsu.com> In-Reply-To: Content-Type: text/plain; charset="utf-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.167.226.252] X-yoursite-MailScanner-ID: 53C6C42B4AE4.AAFCF X-yoursite-MailScanner: Found to be clean X-yoursite-MailScanner-From: zhugh.fnst@cn.fujitsu.com Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 707 Lines: 30 Hi, On 03/03/2016 10:08 AM, Rafael J. Wysocki wrote: > Hi, > > On Thu, Mar 3, 2016 at 2:42 AM, Zhu Guihua wrote: >> [Problem] >> >> cpuid <-> nodeid mapping is firstly established at boot time. And workqueue caches >> the mapping in wq_numa_possible_cpumask in wq_numa_init() at boot time. >> >> When doing node online/offline, cpuid <-> nodeid mapping is established/destroyed, >> which means, cpuid <-> nodeid mapping will change if node hotplug happens. But >> workqueue does not update wq_numa_possible_cpumask. >> > Are there any changes in this version relative to the previous one? No, there are no changes in this version. Thanks, Zhu > > Thanks, > Rafael > > > . >