From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753091AbaBGVGt (ORCPT ); Fri, 7 Feb 2014 16:06:49 -0500 Received: from mail-pa0-f48.google.com ([209.85.220.48]:55915 "EHLO mail-pa0-f48.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751529AbaBGVGr (ORCPT ); Fri, 7 Feb 2014 16:06:47 -0500 Date: Fri, 7 Feb 2014 13:06:00 -0800 (PST) From: Hugh Dickins X-X-Sender: hugh@eggly.anvils To: Tejun Heo cc: Hugh Dickins , Filipe Brandenburger , Li Zefan , Andrew Morton , Michal Hocko , Johannes Weiner , Greg Thelen , Michel Lespinasse , Markus Blank-Burian , Shawn Bohrer , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org Subject: Re: [PATCH] cgroup: use an ordered workqueue for cgroup destruction In-Reply-To: <20140207203508.GC8833@htj.dyndns.org> Message-ID: References: <20140207140402.GA3304@htj.dyndns.org> <20140207203508.GC8833@htj.dyndns.org> User-Agent: Alpine 2.11 (LSU 23 2013-08-11) MIME-Version: 1.0 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 Fri, 7 Feb 2014, Tejun Heo wrote: > On Fri, Feb 07, 2014 at 12:20:44PM -0800, Hugh Dickins wrote: > > > You don't return to this concern in the following mails of the thread: > > did you later decide that it actually won't be a problem? I'll assume > > so for the moment, since you took the patch, but please reassure me. > > I was just worrying about a different solution where we take > css_offline invocation outside of cgroup_mutex and bumping up > max_active. There's nothing to worry about your patch. Sorry about > not being clear. :) Thanks a lot for your detailed and admirably responsive explanations. You were looking ahead, I see that now, and I'm gratefully reassured :) Hugh