From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754603AbbIWSvp (ORCPT ); Wed, 23 Sep 2015 14:51:45 -0400 Received: from mail-yk0-f177.google.com ([209.85.160.177]:32783 "EHLO mail-yk0-f177.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753041AbbIWSvn (ORCPT ); Wed, 23 Sep 2015 14:51:43 -0400 Date: Wed, 23 Sep 2015 14:51:37 -0400 From: Tejun Heo To: Artem Bityutskiy Cc: "Theodore Ts'o" , axboe@kernel.dk, linux-kernel@vger.kernel.org, linux-fsdevel@vger.kernel.org, lizefan@huawei.com, cgroups@vger.kernel.org, hannes@cmpxchg.org, kernel-team@fb.com, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org Subject: Re: [PATCH 2/2] ext4: implement cgroup writeback support Message-ID: <20150923185137.GJ26647@mtj.duckdns.org> References: <1434495193-31182-1-git-send-email-tj@kernel.org> <1434495193-31182-3-git-send-email-tj@kernel.org> <20150722035620.GD2944@thunk.org> <1443012552.19983.209.camel@gmail.com> <20150923180934.GE26647@mtj.duckdns.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20150923180934.GE26647@mtj.duckdns.org> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Sep 23, 2015 at 02:09:34PM -0400, Tejun Heo wrote: > Hello, Artem. > > On Wed, Sep 23, 2015 at 03:49:12PM +0300, Artem Bityutskiy wrote: > > I use Fedora 22 with all the latest package updates, and I only change > > the kernel there. > > What's your cgroup setup like? Are you trying out the unified > hierarchy? Given that you didn't mention that, I'm guessing you > aren't which makes me pretty head-scratchy because I don't see how the > actual behavior would change depending on that flag. I'll dig more. Ugh... never mind. I spotted what I did wrong. The sync thing still needs figuring out (it still should have worked) but fixing the regression should be easy. Will update soon. Thanks. -- tejun