linux.git/Documentation/cgroups, branch v3.7-rc5

memcg: trivial fixes for Documentation/cgroups/memory.txt

2012-10-09T07:22:54+00:00

While reading through Documentation/cgroups/memory.txt, I found a number
of minor wordos and typos.  The patch below is a conservative handling of
some of these: it provides just a number of "obviously correct" fixes to
the English that improve the readability of the document somewhat.
Obviously some more significant fixes need to be made to the document, but
some of those may not be in the "obvious correct" category.

Signed-off-by: Michael Kerrisk 
Acked-by: Michal Hocko 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cgroup: trivial fixes for Documentation/cgroups/cgroups.txt

2012-09-13T18:10:54+00:00

While reading through Documentation/cgroups/cgroups.txt, I found a
number of minor wordos and typos. The patch below is a conservative
handling of some of these: it provides just a number of "obviously
correct" fixes to the English that improve the readability
of the document somewhat. Obviously some more significant
fixes could be made to the document, but some of those
may not be in the "obviously correct" category.

Signed-off-by: Michael Kerrisk 
Signed-off-by: Tejun Heo

cgroup: add documentation on extended attributes usage

2012-09-12T18:39:50+00:00

v2: update cgroups.txt instead of creating a new file

Cc: Tejun Heo 
Cc: Hugh Dickins 
Cc: Hillf Danton 
Cc: Lennart Poettering 
Acked-by: Li Zefan 
Signed-off-by: Aristeu Rozanski 
Signed-off-by: Tejun Heo

mm/memcg: complete documentation for tcp memcg files

2012-08-01T01:42:43+00:00

Signed-off-by: Wanpeng Li 
Acked-by: KAMEZAWA Hiroyuki 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

memcg: rename config variables

2012-08-01T01:42:43+00:00

Sanity:

CONFIG_CGROUP_MEM_RES_CTLR -> CONFIG_MEMCG
CONFIG_CGROUP_MEM_RES_CTLR_SWAP -> CONFIG_MEMCG_SWAP
CONFIG_CGROUP_MEM_RES_CTLR_SWAP_ENABLED -> CONFIG_MEMCG_SWAP_ENABLED
CONFIG_CGROUP_MEM_RES_CTLR_KMEM -> CONFIG_MEMCG_KMEM

[mhocko@suse.cz: fix missed bits]
Cc: Glauber Costa 
Acked-by: Michal Hocko 
Cc: Johannes Weiner 
Cc: KAMEZAWA Hiroyuki 
Cc: Hugh Dickins 
Cc: Tejun Heo 
Cc: Aneesh Kumar K.V 
Cc: David Rientjes 
Cc: KOSAKI Motohiro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

hugetlb/cgroup: add HugeTLB controller documentation

2012-08-01T01:42:41+00:00

Signed-off-by: Aneesh Kumar K.V 
Reviewed-by: KAMEZAWA Hiroyuki 
Cc: David Rientjes 
Cc: Hillf Danton 
Reviewed-by: Michal Hocko 
Cc: KOSAKI Motohiro 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

cgroup: Update remount documentation

2012-07-17T18:10:52+00:00

Remounting support will be removed in the future (see
feature-removal-schedule.txt).  Discourage users from using it.

Signed-off-by: Daniel Wagner 
Signed-off-by: Tejun Heo 
Cc: Rob Landley 
Cc: Paul Menage 
Cc: Li Zefan 
Cc: Frederic Weisbecker 
Cc: KAMEZAWA Hiroyuki

cgroup: Remove populate() documentation

2012-07-09T16:56:23+00:00

This function was removed by 86f82d561864e902c70282b6f17cf590c0f34691.

Signed-off-by: Daniel Wagner 
Signed-off-by: Tejun Heo 
Cc: Rob Landley 
Cc: Paul Menage 
Cc: Li Zefan 
Cc: Frederic Weisbecker 
Cc: KAMEZAWA Hiroyuki

cgroup: remove hierarchy_mutex

2012-06-07T02:12:30+00:00

It was introduced for memcg to iterate cgroup hierarchy without
holding cgroup_mutex, but soon after that it was replaced with
a lockless way in memcg.

No one used hierarchy_mutex since that, so remove it.

Signed-off-by: Li Zefan 
Signed-off-by: Tejun Heo

memcg: move charges to root cgroup if use_hierarchy=0

2012-05-29T23:22:27+00:00

Presently, at removal of cgroup, ->pre_destroy() is called and moves
charges to the parent cgroup.  A major reason for returning -EBUSY from
->pre_destroy() is that the 'moving' hits the parent's resource
limitation.  It happens only when use_hierarchy=0.

Considering use_hierarchy=0, all cgroups should be flat.  So, no one
cannot justify moving charges to parent...parent and children are in flat
configuration, not hierarchical.

This patch modifes the code to move charges to the root cgroup at
rmdir/force_empty if use_hierarchy==0.  This will much simplify rmdir()
and reduce error in ->pre_destroy.

Signed-off-by: KAMEZAWA Hiroyuki 
Cc: Aneesh Kumar K.V 
Cc: Michal Hocko 
Cc: Johannes Weiner 
Cc: Frederic Weisbecker 
Cc: Ying Han 
Cc: Glauber Costa 
Reviewed-by: Tejun Heo 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds