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>
1 file changed