Pull cgroup fixes from Tejun Heo:
- Hide PF_EXITING tasks from cgroup.procs to avoid exposing dead tasks
that haven't been removed yet, fixing a systemd timeout issue on
PREEMPT_RT
- Call rebuild_sched_domains() directly in CPU hotplug instead of
deferring to a workqueue, fixing a race where online/offline CPUs
could briefly appear in stale sched domains
* tag 'cgroup-for-7.0-rc3-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
cgroup: Don't expose dead tasks in cgroup
cgroup/cpuset: Call rebuild_sched_domains() directly in hotplug