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| author | Ben Blum <bblum@andrew.cmu.edu> | 2010-03-10 15:22:09 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2010-03-12 15:52:36 -0800 |
| commit | e6a1105ba08b265023dd71a4174fb4a29ebc7083 (patch) | |
| tree | c171a012df4364b0feac5d6f1bf8c354164ab0f9 /Documentation/cgroups/cgroups.txt | |
| parent | aae8aab40367036931608fdaf9e2dc568b516f19 (diff) | |
| download | lwn-e6a1105ba08b265023dd71a4174fb4a29ebc7083.tar.gz lwn-e6a1105ba08b265023dd71a4174fb4a29ebc7083.zip | |
cgroups: subsystem module loading interface
Add interface between cgroups subsystem management and module loading
This patch implements rudimentary module-loading support for cgroups -
namely, a cgroup_load_subsys (similar to cgroup_init_subsys) for use as a
module initcall, and a struct module pointer in struct cgroup_subsys.
Several functions that might be wanted by modules have had EXPORT_SYMBOL
added to them, but it's unclear exactly which functions want it and which
won't.
Signed-off-by: Ben Blum <bblum@andrew.cmu.edu>
Acked-by: Li Zefan <lizf@cn.fujitsu.com>
Cc: Paul Menage <menage@google.com>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: KAMEZAWA Hiroyuki <kamezawa.hiroyu@jp.fujitsu.com>
Cc: Lai Jiangshan <laijs@cn.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'Documentation/cgroups/cgroups.txt')
| -rw-r--r-- | Documentation/cgroups/cgroups.txt | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/Documentation/cgroups/cgroups.txt b/Documentation/cgroups/cgroups.txt index d45082653e3d..ae8a037a761e 100644 --- a/Documentation/cgroups/cgroups.txt +++ b/Documentation/cgroups/cgroups.txt @@ -488,6 +488,10 @@ Each subsystem should: - add an entry in linux/cgroup_subsys.h - define a cgroup_subsys object called <name>_subsys +If a subsystem can be compiled as a module, it should also have in its +module initcall a call to cgroup_load_subsys(&its_subsys_struct). It +should also set its_subsys.module = THIS_MODULE in its .c file. + Each subsystem may export the following methods. The only mandatory methods are create/destroy. Any others that are null are presumed to be successful no-ops. |