[GIT PULL] cgroup fixes for v6.1-rc1

[Tejun Heo]

The following changes since commit 4de65c5830233e7a4adf2e679510089ec4e210c7:

  Merge tag 'livepatching-for-6.1' of git://git.kernel.org/pub/scm/linux/kernel/git/livepatching/livepatching (2022-10-10 11:36:19 -0700)

are available in the Git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git/ tags/cgroup-for-6.1-rc1-fixes

for you to fetch changes up to 79a818b5087393d5a4cb356d4545d02f55bf1a2f:

  blkcg: Update MAINTAINERS entry (2022-10-17 09:27:18 -1000)

----------------------------------------------------------------
cgroup fixes for v6.1-rc1

* Fix a recent regression where a sleeping kernfs function is called with
  css_set_lock (spinlock) held.

* Revert the commit to enable cgroup1 support for cgroup_get_from_fd/file().
  Multiple users assume that the lookup only works for cgroup2 and breaks
  when fed a cgroup1 file. Instead, introduce a separate set of functions to
  lookup both v1 and v2 and use them where the user explicitly wants to
  support both versions.

* Compat update for tools/perf/util/bpf_skel/bperf_cgroup.bpf.c.

* Add Josef Bacik as a blkcg maintainer.

----------------------------------------------------------------
Michal Koutný (1):
      cgroup: Reorganize css_set_lock and kernfs path processing

Namhyung Kim (1):
      perf stat: Support old kernels for bperf cgroup counting

Tejun Heo (2):
      Revert "cgroup: enable cgroup_get_from_file() on cgroup1"
      blkcg: Update MAINTAINERS entry

Yosry Ahmed (3):
      cgroup: add cgroup_v1v2_get_from_[fd/file]()
      bpf: cgroup_iter: support cgroup1 using cgroup fd
      mm: cgroup: fix comments for get from fd/file helpers

 MAINTAINERS                                 |  2 +
 include/linux/cgroup.h                      |  1 +
 kernel/bpf/cgroup_iter.c                    |  2 +-
 kernel/cgroup/cgroup.c                      | 99 +++++++++++++++++++++++------
 tools/perf/util/bpf_skel/bperf_cgroup.bpf.c | 29 ++++++++-
 5 files changed, 111 insertions(+), 22 deletions(-)