From: Tejun Heo Subject: Re: [PATCH 2/2] ext4: implement cgroup writeback support Date: Wed, 23 Sep 2015 14:51:37 -0400 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 Cc: Theodore Ts'o , axboe-tSWWG44O7X1aa/9Udqfwiw@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-fsdevel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, lizefan-hv44wF8Li93QT0dZR+AlfA@public.gmane.org, cgroups-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, hannes-druUgvl0LCNAfugRpC6u6w@public.gmane.org, kernel-team-b10kYP2dOMg@public.gmane.org, adilger.kernel-m1MBpc4rdrD3fQ9qLvQP4Q@public.gmane.org, linux-ext4-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Artem Bityutskiy Return-path: Content-Disposition: inline In-Reply-To: <20150923180934.GE26647-qYNAdHglDFBN0TnZuCh8vA@public.gmane.org> Sender: cgroups-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-ext4.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