1 files changed, 1 insertions, 0 deletions

diff --git a/fs/mount.h b/fs/mount.h
index eb62ad232e4d..4a5f1dca0c2e 100644
--- a/fs/mount.h
+++ b/fs/mount.h
@@ -25,6 +25,7 @@ struct mount {
         struct list_head mnt_slave_list;/* list of slave mounts */
         struct list_head mnt_slave;     /* slave list entry */
         struct mount *mnt_master;       /* slave is on master->mnt_slave_list */
+        struct mnt_namespace *mnt_ns;   /* containing namespace */
 };
 
 static inline struct mount *real_mount(struct vfsmount *mnt)