1 files changed, 4 insertions, 0 deletions

diff --git a/include/linux/cgroup.h b/include/linux/cgroup.h
index d0ad3794b947..53e81a61be57 100644
--- a/include/linux/cgroup.h
+++ b/include/linux/cgroup.h
@@ -277,6 +277,10 @@ enum {
          *
          * - Remount is disallowed.
          *
+         * - cpuset: tasks will be kept in empty cpusets when hotplug happens
+         *   and take masks of ancestors with non-empty cpus/mems, instead of
+         *   being moved to an ancestor.
+         *
          * - memcg: use_hierarchy is on by default and the cgroup file for
          *   the flag is not created.
          *