1 files changed, 0 insertions, 1 deletions

diff --git a/include/linux/namespace.h b/include/linux/namespace.h
index 9eca1558d72..697991b69f9 100644
--- a/include/linux/namespace.h
+++ b/include/linux/namespace.h
@@ -12,7 +12,6 @@ struct namespace {
         struct rw_semaphore     sem;
 };
 
-extern void umount_tree(struct vfsmount *);
 extern int copy_namespace(int, struct task_struct *);
 extern void __put_namespace(struct namespace *namespace);