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(parent: 5616163) | patch
blkcg: add blkcg_root_css
authorTejun Heo <tj@kernel.org>
Fri, 22 May 2015 21:13:21 +0000 (17:13 -0400)
committerJens Axboe <axboe@fb.com>
Tue, 2 Jun 2015 14:33:33 +0000 (08:33 -0600)
commit496d5e7560dbb84399dbd92316fc33857aa83900
tree1e60d21e0c680643251ee309382abd7d46d11e67tree | snapshot
parent56161634e4824380a67243a4cf3fa52eb1e5d836commit | 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>
block/blk-cgroup.c diff | blob | history
include/linux/blk-cgroup.h diff | blob | history
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