[GIT PULL] cgroup changes for 4.3

[Tejun Heo]

Hello,

cgroup changes for 4.3.

* A new PIDs controller is added.  It turns out that PIDs are actually
  an independent resource from kmem due to the limited PID space.

* More core preparations for the v2 interface.  Once cpu side
  interface is settled, it should be ready for lifting the devel mask.
  for-4.3-unified-base was temporarily branched so that other trees
  (block) can pull cgroup core changes that blkcg changes depend on.

* A non-critical idr_preload usage bug fix.

Thanks.

The following changes since commit d770e558e21961ad6cfdf0ff7df0eb5d7d4f0754:

  Linux 4.2-rc1 (2015-07-05 11:01:52 -0700)

are available in the git repository at:

  git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-4.3

for you to fetch changes up to 20f1f4b5ffb870631bf4a4e7c7ba10e3528ae6a6:

  Merge branch 'for-4.3-unified-base' into for-4.3 (2015-08-25 14:19:29 -0400)

----------------------------------------------------------------
Aleksa Sarai (4):
      cgroup: allow a cgroup subsystem to reject a fork
      cgroup: implement the PIDs subsystem
      cgroup: add documentation for the PIDs controller
      cgroup: pids: fix invalid get/put usage

Tejun Heo (6):
      cgroup: define controller file conventions
      cgroup: export cgrp_dfl_root
      cgroup: make cftype->private a unsigned long
      cgroup: don't print subsystems for the default hierarchy
      cgroup: introduce cgroup_subsys->legacy_name
      Merge branch 'for-4.3-unified-base' into for-4.3

Vladimir Davydov (1):
      cgroup: fix idr_preload usage

 CREDITS                                     |   5 +
 Documentation/cgroups/00-INDEX              |   2 +
 Documentation/cgroups/pids.txt              |  85 +++++++
 Documentation/cgroups/unified-hierarchy.txt |  80 ++++++-
 include/linux/cgroup-defs.h                 |  15 +-
 include/linux/cgroup.h                      |  24 +-
 include/linux/cgroup_subsys.h               |  28 +++
 init/Kconfig                                |  16 ++
 kernel/Makefile                             |   1 +
 kernel/cgroup.c                             | 122 ++++++++--
 kernel/cgroup_freezer.c                     |   2 +-
 kernel/cgroup_pids.c                        | 355 ++++++++++++++++++++++++++++
 kernel/fork.c                               |  17 +-
 kernel/sched/core.c                         |   2 +-
 14 files changed, 717 insertions(+), 37 deletions(-)
 create mode 100644 Documentation/cgroups/pids.txt
 create mode 100644 kernel/cgroup_pids.c

-- 
tejun
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