linux-stable.git/Documentation/cgroups/cgroups.txt, branch v3.7

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

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

cgroup: remove cgroup_subsys argument from callbacks

2012-02-02T17:20:22+00:00

The argument is not used at all, and it's not necessary, because
a specific callback handler of course knows which subsys it
belongs to.

Now only ->pupulate() takes this argument, because the handlers of
this callback always call cgroup_add_file()/cgroup_add_files().

So we reduce a few lines of code, though the shrinking of object size
is minimal.

 16 files changed, 113 insertions(+), 162 deletions(-)

   text    data     bss     dec     hex filename
5486240  656987 7039960 13183187         c928d3 vmlinux.o.orig
5486170  656987 7039960 13183117         c9288d vmlinux.o

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

cgroup: kill subsys->can_attach_task(), pre_attach() and attach_task()

2011-12-13T02:12:22+00:00

These three methods are no longer used.  Kill them.

Signed-off-by: Tejun Heo 
Reviewed-by: KAMEZAWA Hiroyuki 
Reviewed-by: Frederic Weisbecker 
Acked-by: Paul Menage 
Cc: Li Zefan

cgroup: introduce cgroup_taskset and use it in subsys->can_attach(), cancel_attach() and attach()

2011-12-13T02:12:21+00:00

Currently, there's no way to pass multiple tasks to cgroup_subsys
methods necessitating the need for separate per-process and per-task
methods.  This patch introduces cgroup_taskset which can be used to
pass multiple tasks and their associated cgroups to cgroup_subsys
methods.

Three methods - can_attach(), cancel_attach() and attach() - are
converted to use cgroup_taskset.  This unifies passed parameters so
that all methods have access to all information.  Conversions in this
patchset are identical and don't introduce any behavior change.

-v2: documentation updated as per Paul Menage's suggestion.

Signed-off-by: Tejun Heo 
Reviewed-by: KAMEZAWA Hiroyuki 
Reviewed-by: Frederic Weisbecker 
Acked-by: Paul Menage 
Acked-by: Li Zefan 
Cc: Balbir Singh 
Cc: Daisuke Nishimura 
Cc: KAMEZAWA Hiroyuki 
Cc: James Morris

Documentation: update cgroups notes

2011-11-04T19:01:46+00:00

- ns cgroup has been removed.
- it's true moving a task to another cgroup can fail.

Signed-off-by: Li Zefan 
Acked-by: Paul Menage 
Signed-off-by: Randy Dunlap 
Signed-off-by: Linus Torvalds

Documentation: fix cgroup typos and formatting

2011-06-16T04:52:50+00:00

Fix format and spelling.

Signed-off-by: Jörg Sommer 
Acked-by: Paul Menage 
Signed-off-by: Randy Dunlap 
Signed-off-by: Linus Torvalds