Pull cgroup updates from Tejun Heo:
 "All trivial cleanups without meaningful behavior changes"

* 'for-5.18' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup: cleanup comments
  cgroup: Fix cgroup_can_fork() and cgroup_post_fork() kernel-doc comment
  cgroup: rstat: retrieve current bstat to delta directly
  cgroup: rstat: use same convention to assign cgroup_base_stat