[PATCHSET cgroup/for-4.3] cgroup,memcg: generalize event handling and enable notifications on "memory.events"

[Tejun Heo <tj-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org>]

Hello,

This patchset establishes conventions on low frequency events,
converts "cgroup.populated" to "cgroup.events" accordingly,
generalizes event handling and enable notifications for
"memory.events".

This patchset contains the following eight patches.

 0001-cgroup-replace-cgroup.populated-with-cgroup.events.patch
 0002-cgroup-replace-cftype-mode-with-CFTYPE_WORLD_WRITABL.patch
 0003-cgroup-relocate-cgroup_populate_dir.patch
 0004-cgroup-make-cgroup_addrm_files-clean-up-after-itself.patch
 0005-cgroup-cosmetic-updates-to-rebind_subsystems.patch
 0006-cgroup-restructure-file-creation-removal-handling.patch
 0007-cgroup-generalize-obtaining-the-handles-of-and-notif.patch
 0008-memcg-generate-file-modified-notifications-on-memory.patch

0001 replaces "cgroup.populated" with "cgroup.events".  0002-0006 are
prep patches.  0007 generalizes event notification.  0008 hook up
event notifications for "memory.events".

This patchset is on top of cgroup/for-4.3 e753531991b8 ("Merge branch
'for-4.3-unified-base' into for-4.3") and available in the following
git branch.

 git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-events

diffstat follows.  Thanks.

 Documentation/cgroups/unified-hierarchy.txt |   15 +
 include/linux/cgroup-defs.h                 |   32 ++-
 include/linux/cgroup.h                      |   13 +
 kernel/cgroup.c                             |  264 ++++++++++++++--------------
 kernel/cpuset.c                             |    6 
 mm/memcontrol.c                             |    8 
 6 files changed, 194 insertions(+), 144 deletions(-)

--
tejun