[GIT PULL] cgroup changes for v5.16-rc1

[Tejun Heo <tj@kernel.org>]

Hello,

* The misc controller now reports allocation rejections through misc.events
  instead of printking.

* cgroup_mutex usage is reduced to improve scalability of some operations.

* vhost helper threads are now assigned to the right cgroup on cgroup2.

* Bug fixes.

Thanks.

The following changes since commit c0002d11d79900f8aa5c8375336434940d6afedf:

  cgroupv2, docs: fix misinformation in "device controller" section (2021-09-13 08:08:46 -1000)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-5.16

for you to fetch changes up to 588e5d8766486e52ee332a4bb097b016a355b465:

  cgroup: bpf: Move wrapper for __cgroup_bpf_*() to kernel/bpf/cgroup.c (2021-11-01 06:49:00 -1000)

----------------------------------------------------------------
Chunguang Xu (3):
      misc_cgroup: introduce misc.events to count failures
      misc_cgroup: remove error log to avoid log flood
      docs/cgroup: add entry for misc.events

Dan Schatzberg (1):
      cgroup: Fix rootcg cpu.stat guest double counting

He Fengqing (1):
      cgroup: bpf: Move wrapper for __cgroup_bpf_*() to kernel/bpf/cgroup.c

Shakeel Butt (3):
      cgroup: reduce dependency on cgroup_mutex
      cgroup: remove cgroup_mutex from cgroupstats_build
      cgroup: no need for cgroup_mutex for /proc/cgroups

Vishal Verma (1):
      cgroup: cgroup-v1: do not exclude cgrp_dfl_root

Waiman Long (1):
      cgroup: Make rebind_subsystems() disable v2 controllers all at once

 Documentation/admin-guide/cgroup-v2.rst |  10 +++
 include/linux/bpf-cgroup.h              |  20 ------
 include/linux/misc_cgroup.h             |   6 +-
 kernel/bpf/cgroup.c                     |  54 +++++++++++---
 kernel/cgroup/cgroup-v1.c               |  17 ++---
 kernel/cgroup/cgroup.c                  | 120 +++++++++++++++-----------------
 kernel/cgroup/misc.c                    |  31 +++++++--
 kernel/cgroup/rstat.c                   |   2 -
 8 files changed, 144 insertions(+), 116 deletions(-)

-- 
tejun