1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index 87479328d46d..d8e92223a79c 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -233,6 +233,7 @@ int cgroup_is_descendant(const struct cgroup *cont);
 struct cgroup_subsys {
         struct cgroup_subsys_state *(*create)(struct cgroup_subsys *ss,
                                                   struct cgroup *cont);
+        void (*pre_destroy)(struct cgroup_subsys *ss, struct cgroup *cont);
         void (*destroy)(struct cgroup_subsys *ss, struct cgroup *cont);
         int (*can_attach)(struct cgroup_subsys *ss,
                           struct cgroup *cont, struct task_struct *tsk);