Date: Fri, 19 Jun 2015 11:17:19 -0400
From: Tejun Heo <tj@kernel.org>
To: Michal Hocko <mhocko@suse.cz>
Cc: axboe@kernel.dk, linux-kernel@vger.kernel.org, jack@suse.cz,
        hch@infradead.org, hannes@cmpxchg.org, linux-fsdevel@vger.kernel.org,
        vgoyal@redhat.com, lizefan@huawei.com, cgroups@vger.kernel.org,
        linux-mm@kvack.org, clm@fb.com, fengguang.wu@intel.com,
        david@fromorbit.com, gthelen@google.com, khlebnikov@yandex-team.ru
Subject: Re: [PATCH 06/51] memcg: add mem_cgroup_root_css
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On Fri, Jun 19, 2015 at 11:18:48AM +0200, Michal Hocko wrote:
> On Thu 18-06-15 13:49:30, Tejun Heo wrote:
> [...]
> > > I have tried to compile with !CONFIG_MEMCG and !CONFIG_CGROUP_WRITEBACK
> > > without mem_cgroup_root_css defined for this configuration and
> > > mm/backing-dev.c compiles just fine. So maybe we should get rid of it
> > > rather than have a potentially tricky code?
> > 
> > Yeah, please feel free to queue a patch to remove it if doesn't break
> > anything.
> 
> Against which branch should a I generate the patch?

It's in the for-4.2/writeback branch of the block tree; however, a
patch against -mm should work, right?

Thanks.

-- 
tejun
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