1 files changed, 2 insertions, 0 deletions

diff --git a/fs/pnode.c b/fs/pnode.c
index 3e266c5a3071..aeeec8ba8dd2 100644
--- a/fs/pnode.c
+++ b/fs/pnode.c
@@ -82,6 +82,8 @@ void change_mnt_propagation(struct vfsmount *mnt, int type)
         if (type != MS_SLAVE) {
                 list_del_init(&mnt->mnt_slave);
                 mnt->mnt_master = NULL;
+                if (type == MS_UNBINDABLE)
+                        mnt->mnt_flags |= MNT_UNBINDABLE;
         }
 }