From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754442AbbKBSKN (ORCPT ); Mon, 2 Nov 2015 13:10:13 -0500 Received: from resqmta-po-01v.sys.comcast.net ([96.114.154.160]:47338 "EHLO resqmta-po-01v.sys.comcast.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754037AbbKBSKH (ORCPT ); Mon, 2 Nov 2015 13:10:07 -0500 Date: Mon, 2 Nov 2015 12:10:04 -0600 (CST) From: Christoph Lameter X-X-Sender: cl@east.gentwo.org To: Tetsuo Handa cc: htejun@gmail.com, akpm@linux-foundation.org, mhocko@kernel.org, linux-mm@kvack.org, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org, hannes@cmpxchg.org, mgorman@suse.de Subject: Re: [patch 3/3] vmstat: Create our own workqueue In-Reply-To: <201511030152.JGF95845.SHVLOMtOJFFOFQ@I-love.SAKURA.ne.jp> Message-ID: References: <20151029022447.GB27115@mtj.duckdns.org> <20151029030822.GD27115@mtj.duckdns.org> <201510311143.BIH87000.tOSVFHOFJMLFOQ@I-love.SAKURA.ne.jp> <201511030152.JGF95845.SHVLOMtOJFFOFQ@I-love.SAKURA.ne.jp> Content-Type: text/plain; charset=US-ASCII Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 3 Nov 2015, Tetsuo Handa wrote: > I'm still unclear. I think that the result of this patchset is > > The counters are never updated even after stat_interval > if some workqueue item is doing a __GFP_WAIT memory allocation. > > but the patch description sounds as if > > The counters will be updated even if some workqueue item is > doing a __GFP_WAIT memory allocation. > > which denies the actual result I tested with this patchset applied. Well true that is dependend on the correct workqueue operation. I though that was fixed by Tejun?