[GIT PULL] cgroup changes for v3.14-rc1

From: Tejun Heo
Date: Tue Jan 21 2014 - 05:05:10 EST

Hello, Linus.

The bulk of changes are cleanups and preparations for the upcoming
kernfs conversion.

* cgroup_event mechanism which is and will be used only by memcg is
moved to memcg.

* pidlist handling is updated so that it can be served by seq_file.
Also, the list is not sorted if sane_behavior. cgroup documentation
explicitly states that the file is not sorted but it has been for
quite some time.

* All cgroup file handling now happens on top of seq_file. This is to
prepare for kernfs conversion. In addition, all operations are
restructured so that they map 1-1 to kernfs operations.

* Other cleanups and low-pri fixes.

The following changes since commit 266ccd505e8acb98717819cef9d91d66c7b237cc:

cgroup: fix cgroup_create() error handling path (2013-12-06 15:08:50 -0500)

are available in the git repository at:

git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git for-3.14

for you to fetch changes up to dd4b0a4676907481256d16d5de0851b315a6f22c:

cgroup: trivial style updates (2014-01-18 08:56:11 -0500)

Hugh Dickins (1):
cgroup: remove stray references to css_id

Masanari Iida (1):
doc: cgroups: Fix typo in doc/cgroups

SeongJae Park (1):
cgroup: trivial style updates

Tejun Heo (38):
cgroup, memcg: move cgroup_event implementation to memcg
memcg: cgroup_write_event_control() now knows @css is for memcg
cgroup, memcg: move cgroup->event_list[_lock] and event callbacks into memcg
memcg: remove cgroup_event->cft
memcg: make cgroup_event deal with mem_cgroup instead of cgroup_subsys_state
memcg: rename cgroup_event to mem_cgroup_event
cgroup: unexport cgroup_css() and remove __file_cft()
cgroup: Merge branch 'memcg_event' into for-3.14
cgroup: Merge branch 'for-3.13-fixes' into for-3.14
cgroup: don't skip seq_open on write only opens on pidlist files
cgroup: remove cftype->release()
cgroup: implement delayed destruction for cgroup_pidlist
cgroup: introduce struct cgroup_pidlist_open_file
cgroup: refactor cgroup_pidlist_find()
cgroup: remove cgroup_pidlist->rwsem
cgroup: load and release pidlists from seq_file start and stop respectively
cgroup: remove cgroup_pidlist->use_count
cgroup: don't guarantee cgroup.procs is sorted if sane_behavior
cgroup, sched: convert away from cftype->read_map()
cpuset: convert away from cftype->read()
memcg: convert away from cftype->read() and ->read_map()
netprio_cgroup: convert away from cftype->read_map()
hugetlb_cgroup: convert away from cftype->read()
cgroup: remove cftype->read(), ->read_map() and ->write()
cgroup: unify cgroup_write_X64() and cgroup_write_string()
cgroup: unify read path so that seq_file is always used
cgroup: generalize cgroup_pidlist_open_file
cgroup: attach cgroup_open_file to all cgroup files
cgroup: replace cftype->read_seq_string() with cftype->seq_show()
cgroup: unify pidlist and other file handling
Merge branch 'for-3.13-fixes' into for-3.14
cgroup: css iterations and css_from_dir() are safe under cgroup_mutex
cgroup: make for_each_subsys() useable under cgroup_root_mutex
cgroup: reorder operations in cgroup_create()
cgroup: combine css handling loops in cgroup_create()
cgroup: factor out cgroup_subsys_state creation into create_css()
cgroup: implement for_each_css()
cgroup: remove for_each_root_subsys()

Vladimir Davydov (1):
cgroup: fix fail path in cgroup_load_subsys()

Wei Yongjun (1):
cgroup: fix missing unlock on error in cgroup_load_subsys()

Documentation/cgroups/cgroups.txt | 20 -
Documentation/cgroups/memory.txt | 4 +-
Documentation/cgroups/resource_counter.txt | 4 +-
block/blk-throttle.c | 35 +-
block/cfq-iosched.c | 131 ++-
drivers/md/bcache/request.c | 1 -
include/linux/cgroup.h | 112 +--
include/linux/vmpressure.h | 8 +-
init/Kconfig | 3 +-
kernel/cgroup.c | 1202 +++++++++++-----------------
kernel/cgroup_freezer.c | 7 +-
kernel/cpuset.c | 71 +-
kernel/sched/core.c | 13 +-
kernel/sched/cpuacct.c | 18 +-
mm/hugetlb_cgroup.c | 22 +-
mm/memcontrol.c | 426 ++++++++--
mm/page_cgroup.c | 2 +-
mm/vmpressure.c | 26 +-
net/core/netprio_cgroup.c | 8 +-
security/device_cgroup.c | 7 +-
20 files changed, 1022 insertions(+), 1098 deletions(-)

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