1 files changed, 1 insertions, 0 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index ebe7ce49f4b7..5375582ea5f6 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -97,6 +97,7 @@ struct cgroup_subsys_state {
 enum {
         CSS_NO_REF      = (1 << 0), /* no reference counting for this css */
         CSS_ONLINE      = (1 << 1), /* between ->css_online() and ->css_offline() */
+        CSS_RELEASED    = (1 << 2), /* refcnt reached zero, released */
 };
 
 /**