[GIT PULL] cgroup fixes for v4.15-rc3

[Tejun Heo]

Hello,

* Prateek posted a couple patches to fix a deadlock involving cpuset
  and workqueue.  It unfortunately caused a different deadlock and the
  recent workqueue hotplug simplification removed the original
  deadlock, so Prateek's two patches are reverted for now.

* The new stat code was missing u64_stats initialization.  Fixed.

* Doc and other misc changes.

Thanks.

The following changes since commit 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323:

  Linux 4.15-rc1 (2017-11-26 16:01:47 -0800)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-4.15-fixes

for you to fetch changes up to c2f31b79d510ec1a27138bdcf2d0ece1080be85e:

  cgroup: add warning about RT not being supported on cgroup2 (2017-12-05 11:47:17 -0800)

----------------------------------------------------------------
Lucas Stach (1):
      cgroup: properly init u64_stats

Prateek Sood (2):
      cgroup/cpuset: remove circular dependency deadlock
      cpuset: Make cpuset hotplug synchronous

Tejun Heo (3):
      Revert "cpuset: Make cpuset hotplug synchronous"
      Revert "cgroup/cpuset: remove circular dependency deadlock"
      cgroup: add warning about RT not being supported on cgroup2

Wang Long (1):
      debug cgroup: use task_css_set instead of rcu_dereference

 Documentation/cgroup-v2.txt | 7 +++++++
 kernel/cgroup/debug.c       | 4 ++--
 kernel/cgroup/stat.c        | 8 ++++++--
 3 files changed, 15 insertions(+), 4 deletions(-)

-- 
tejun