1 files changed, 1 insertions, 1 deletions

diff --git a/fs/namespace.c b/fs/namespace.c
index 3b93e5d750eb..208c079e9fdb 100644
--- a/fs/namespace.c
+++ b/fs/namespace.c
@@ -337,7 +337,7 @@ int may_umount(struct vfsmount *mnt)
 
 EXPORT_SYMBOL(may_umount);
 
-void umount_tree(struct vfsmount *mnt)
+static void umount_tree(struct vfsmount *mnt)
 {
         struct vfsmount *p;
         LIST_HEAD(kill);