@@ -127,6 +127,13 @@ struct ve_struct {
struct kmapset_key sysfs_perms_key;
struct workqueue_struct *wq;
+
+ /*
+ * All tasks, that belong to this ve, live
+ * in cgroups, that are children to cgroups
+ * that form this css_set.
+ */
+ struct css_set *root_css_set;
};
struct ve_devmnt {
@@ -453,6 +453,8 @@ static void ve_grab_context(struct ve_struct *ve)
get_task_struct(tsk);
ve->init_task = tsk;
+ ve->root_css_set = tsk->cgroups;
+ get_css_set(ve->root_css_set);
ve->init_cred = (struct cred *)get_current_cred();
rcu_assign_pointer(ve->ve_ns, get_nsproxy(tsk->nsproxy));
ve->ve_netns = get_net(ve->ve_ns->net_ns);
@@ -464,6 +466,9 @@ static void ve_drop_context(struct ve_struct *ve)
struct nsproxy *ve_ns = ve->ve_ns;
struct net *net = ve->ve_netns;
+ put_css_set_taskexit(ve->root_css_set);
+ ve->root_css_set = NULL;
+
ve->ve_netns = NULL;
put_net(net);
@@ -479,7 +484,6 @@ static void ve_drop_context(struct ve_struct *ve)
put_task_struct(ve->init_task);
ve->init_task = NULL;
-
}
static const struct timespec zero_time = { };