locks: make generic_add_lease and generic_delete_lease static

Signed-off-by: Jeff Layton <jlayton@redhat.com>
Acked-by: J. Bruce Fields <bfields@fieldses.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

fs/locks.c

@@ -1337,7 +1337,7 @@ int fcntl_getlease(struct file *filp)
 	return type;
 }
 
-int generic_add_lease(struct file *filp, long arg, struct file_lock **flp)
+static int generic_add_lease(struct file *filp, long arg, struct file_lock **flp)
 {
 	struct file_lock *fl, **before, **my_before = NULL, *lease;
 	struct dentry *dentry = filp->f_path.dentry;
@@ -1402,7 +1402,7 @@ out:
 	return error;
 }
 
-int generic_delete_lease(struct file *filp, struct file_lock **flp)
+static int generic_delete_lease(struct file *filp, struct file_lock **flp)
 {
 	struct file_lock *fl, **before;
 	struct dentry *dentry = filp->f_path.dentry;