tree 4e2234cea36ac5ff5e7c8243100e421c2d9e4a8c
parent a8a648c4acee2095262f7fa65b0d8a68a03c32e4
author Tejun Heo <tj@kernel.org> 1372112508 -0700
committer Tejun Heo <tj@kernel.org> 1372112508 -0700

cgroup: clean up find_css_set() and friends

find_css_set() passes uninitialized on-stack template[] array to
find_existing_css_set() which sets the entries for all subsystems.
Passing around an uninitialized array is a bit icky and we want to
introduce an iterator which only iterates loaded subsystems.  Let's
initialize it on definition.

While at it, also make the following cosmetic cleanups.

* Convert to proper /** comments.

* Reorder variable declarations.

* Replace comment on synchronization with lockdep_assert_held().

This patch doesn't make any functional differences.

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