From 3e1534cf4a2a8278e811e7c84a79da1a02347b8b Mon Sep 17 00:00:00 2001
From: Tejun Heo <tj@kernel.org>
Date: Tue, 16 Jun 2015 18:48:32 -0400
Subject: [PATCH] writeback, blkio: add documentation for cgroup writeback
 support

Update Documentation/cgroups/blkio-controller.txt to reflect the
recently added cgroup writeback support.

Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Li Zefan <lizefan@huawei.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: cgroups@vger.kernel.org
Cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Jens Axboe <axboe@fb.com>
---
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