cgroups: add previous cgroup in can_attach_task/attach_task callbacks

[karo-tx-linux.git] / include / linux / cgroup.h

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 1b7f9d5250131fe43acf75045142b544f6f1a396..0731c6bf96c7ee4eb869411e2d9a4f1573f5b371 100644 (file)
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -468,11 +468,13 @@ struct cgroup_subsys {
        void (*destroy)(struct cgroup_subsys *ss, struct cgroup *cgrp);
        int (*can_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
                          struct task_struct *tsk);
-       int (*can_attach_task)(struct cgroup *cgrp, struct task_struct *tsk);
+       int (*can_attach_task)(struct cgroup *cgrp, struct cgroup *old_cgrp,
+                              struct task_struct *tsk);
        void (*cancel_attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
                              struct task_struct *tsk);
        void (*pre_attach)(struct cgroup *cgrp);
-       void (*attach_task)(struct cgroup *cgrp, struct task_struct *tsk);
+       void (*attach_task)(struct cgroup *cgrp, struct cgroup *old_cgrp,
+                           struct task_struct *tsk);
        void (*attach)(struct cgroup_subsys *ss, struct cgroup *cgrp,
                       struct cgroup *old_cgrp, struct task_struct *tsk);
        void (*fork)(struct cgroup_subsys *ss, struct task_struct *task);