[PATCH v9 0/4] cgroups: add pids subsystem

[Aleksa Sarai]

This is an updated version of v8 of the pids patchset[1], with a few
small fixes, namely:

* Remove the cgroup_fork_state abstraction and just store the ss_state
  (void *)[CGROUP_PREFORK_COUNT] on the stack.

* Only pass a (void **) to can_fork, and pass (void *) to
  {cancel_,}fork.

* Add a tagging macro to cgroup_subsys.h, so that the ss_state array can
  be CGROUP_PREFORK_COUNT in size.

[1]: https://lkml.org/lkml/2015/4/1/145

Aleksa Sarai (4):
  cgroups: use bitmask to filter for_each_subsys
  cgroups: replace explicit ss_mask checking with for_each_subsys_which
  cgroups: allow a cgroup subsystem to reject a fork
  cgroups: implement the PIDs subsystem

 include/linux/cgroup.h        |  67 ++++++--
 include/linux/cgroup_subsys.h |  43 +++++
 init/Kconfig                  |  16 ++
 kernel/Makefile               |   1 +
 kernel/cgroup.c               | 182 +++++++++++++++------
 kernel/cgroup_freezer.c       |   2 +-
 kernel/cgroup_pids.c          | 367 ++++++++++++++++++++++++++++++++++++++++++
 kernel/fork.c                 |  19 ++-
 kernel/sched/core.c           |   2 +-
 9 files changed, 633 insertions(+), 66 deletions(-)
 create mode 100644 kernel/cgroup_pids.c

-- 
2.3.5

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