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authorPaul Menage <menage@google.com>2007-10-19 10:39:34 +0400
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-10-19 22:53:36 +0400
commit697f41610863c9264a7ae26dac9a387c9dda8c84 (patch)
tree9d4321f93abe36920a8e9d5239d120803f6cabbc /include
parentb4f48b6363c81ca743ef46943ef23fd72e60f679 (diff)
downloadlinux-697f41610863c9264a7ae26dac9a387c9dda8c84.tar.xz
Task Control Groups: add cgroup_clone() interface
Add support for cgroup_clone(), a way to create new cgroups intended to be used for systems such as namespace unsharing. A new subsystem callback, post_clone(), is added to allow subsystems to automatically configure cloned cgroups. Signed-off-by: Paul Menage <menage@google.com> Cc: Serge E. Hallyn <serue@us.ibm.com> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Balbir Singh <balbir@in.ibm.com> Cc: Paul Jackson <pj@sgi.com> Cc: Kirill Korotaev <dev@openvz.org> Cc: Herbert Poetzl <herbert@13thfloor.at> Cc: Srivatsa Vaddagiri <vatsa@in.ibm.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/cgroup.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 792ad74be170..b21cf093ac62 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -182,6 +182,7 @@ struct cgroup_subsys {
void (*exit)(struct cgroup_subsys *ss, struct task_struct *task);
int (*populate)(struct cgroup_subsys *ss,
struct cgroup *cont);
+ void (*post_clone)(struct cgroup_subsys *ss, struct cgroup *cont);
void (*bind)(struct cgroup_subsys *ss, struct cgroup *root);
int subsys_id;
int active;
@@ -221,6 +222,8 @@ static inline struct cgroup* task_cgroup(struct task_struct *task,
int cgroup_path(const struct cgroup *cont, char *buf, int buflen);
+int cgroup_clone(struct task_struct *tsk, struct cgroup_subsys *ss);
+
#else /* !CONFIG_CGROUPS */
static inline int cgroup_init_early(void) { return 0; }