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Merge branch 'for-3.9-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup 

Pull cpuset changes from Tejun Heo:

 - Synchornization has seen a lot of changes with focus on decoupling
   cpuset synchronization from cgroup internal locking.

   After this change, there only remain a couple of mostly trivial
   dependencies on cgroup_lock outside cgroup core proper.  cgroup_lock
   is scheduled to be unexported in this devel cycle.

   This will finally remove the fragile locking order around cgroup
   (cgroup locking wants to / should be one of the outermost but yet has
   been acquired from deep inside individual controllers).

 - At this point, Li is most knowlegeable with cpuset and taking over
   the maintainership of cpuset.

* 'for-3.9-cpuset' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cpuset: drop spurious retval assignment in proc_cpuset_show()
  cpuset: fix RCU lockdep splat
  cpuset: update MAINTAINERS
  cpuset: remove cpuset->parent
  cpuset: replace cpuset->stack_list with cpuset_for_each_descendant_pre()
  cpuset: replace cgroup_mutex locking with cpuset internal locking
  cpuset: schedule hotplug propagation from cpuset_attach() if the cpuset is empty
  cpuset: pin down cpus and mems while a task is being attached
  cpuset: make CPU / memory hotplug propagation asynchronous
  cpuset: drop async_rebuild_sched_domains()
  cpuset: don't nest cgroup_mutex inside get_online_cpus()
  cpuset: reorganize CPU / memory hotplug handling
  cpuset: cleanup cpuset[_can]_attach()
  cpuset: introduce cpuset_for_each_child()
  cpuset: introduce CS_ONLINE
  cpuset: introduce ->css_on/offline()
  cpuset: remove fast exit path from remove_tasks_in_empty_cpuset()
  cpuset: remove unused cpuset_unlock()
This commit is contained in:
Linus Torvalds 2013-02-20 09:18:31 -08:00
parent 502b24c23b d127027baf
commit 9ae46e6702
2 changed files with 492 additions and 398 deletions
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4
MAINTAINERS
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@ -2140,10 +2140,10 @@ S: Maintained
F: tools/power/cpupower
CPUSETS
M: Paul Menage <paul@paulmenage.org>
M: Li Zefan <lizefan@huawei.com>
W: http://www.bullopensource.org/cpuset/
W: http://oss.sgi.com/projects/cpusets/
S: Supported
S: Maintained
F: Documentation/cgroups/cpusets.txt
F: include/linux/cpuset.h
F: kernel/cpuset.c

886
kernel/cpuset.c
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