cgroup: add css_set->dfl_cgrp
authorTejun Heo <tj@kernel.org>
Wed, 23 Apr 2014 15:13:16 +0000 (11:13 -0400)
committerTejun Heo <tj@kernel.org>
Wed, 23 Apr 2014 15:13:16 +0000 (11:13 -0400)
commit6803c006282768ec850760766a6e4eb1a6ff87df
treee06bc433865262b4943d3e06e8f3530d34c509bc
parentbd53d617b34c781dac8e22dbc75e8f182d918ecf
cgroup: add css_set->dfl_cgrp

To implement the unified hierarchy behavior, we'll need to be able to
determine the associated cgroup on the default hierarchy from css_set.
Let's add css_set->dfl_cgrp so that it can be accessed conveniently
and efficiently.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>
include/linux/cgroup.h
kernel/cgroup.c