| commit | 496d5e7560dbb84399dbd92316fc33857aa83900 | [log] [tgz] |
|---|---|---|
| author | Tejun Heo <tj@kernel.org> | Fri May 22 17:13:21 2015 -0400 |
| committer | Jens Axboe <axboe@fb.com> | Tue Jun 02 08:33:33 2015 -0600 |
| tree | 1e60d21e0c680643251ee309382abd7d46d11e67 | |
| parent | 56161634e4824380a67243a4cf3fa52eb1e5d836 [diff] |
blkcg: add blkcg_root_css
Add global constant blkcg_root_css which points to &blkcg_root.css.
This will be used by cgroup writeback support. If blkcg is disabled,
it's defined as ERR_PTR(-EINVAL).
v2: The declarations moved to include/linux/blk-cgroup.h as suggested
by Vivek.
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Jens Axboe <axboe@fb.com>