cgroup: always use cgroup_css()

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cgroup_css() is the accessor for cgroup->subsys[] but is not used
consistently.  cgroup->subsys[] will become RCU protected and
cgroup_css() will grow synchronization sanity checks.  In preparation,
make all cgroup->subsys[] dereferences use cgroup_css() consistently.

This patch doesn't introduce any functional difference.

Signed-off-by: Tejun Heo <tj@kernel.org>
Acked-by: Li Zefan <lizefan@huawei.com>

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This commit is contained in:

Tejun Heo 2013-08-13 11:01:53 -04:00

parent bd8815a6d8

commit 40e93b39cd

1 changed files with 29 additions and 29 deletions

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kernel/cgroup.c

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