From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753809AbcBOVCX (ORCPT ); Mon, 15 Feb 2016 16:02:23 -0500 Received: from mail-qk0-f193.google.com ([209.85.220.193]:34825 "EHLO mail-qk0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753764AbcBOVCT (ORCPT ); Mon, 15 Feb 2016 16:02:19 -0500 Date: Mon, 15 Feb 2016 16:02:17 -0500 From: Tejun Heo To: Michal Hocko Cc: Mike Galbraith , LKML Subject: Re: [PATCH wq/for-4.5-fixes] workqueue: handle NUMA_NO_NODE for unbound pool_workqueue lookup Message-ID: <20160215210217.GO3965@htj.duckdns.org> References: <1454424264.11183.46.camel@gmail.com> <20160203185425.GK14091@mtj.duckdns.org> <20160210155503.GE3741@mtj.duckdns.org> <20160215173346.GA26207@dhcp22.suse.cz> <20160215182125.GG3965@htj.duckdns.org> <20160215205438.GF9223@dhcp22.suse.cz> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160215205438.GF9223@dhcp22.suse.cz> User-Agent: Mutt/1.5.24 (2015-08-30) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, Michal. On Mon, Feb 15, 2016 at 09:54:38PM +0100, Michal Hocko wrote: > I am not sure I understand. Does that mean that a node with no memory > would have its WQ specific pool? I might be missing something but I Yeah, I think it should. > thought that cpu_to_node will return NUMA_NO_NODE if the CPU is memory > less. Or do you expect that cpu_to_node will always return a valid node > id even when it doesn't contain any memory? Hmmm... that was what I was expecting. It's not really looking for memory node to use but identify affinity there. Thanks. -- tejun