name_to_handle_at(): use CLASS(filename_uflags)

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>

Author: Al Viro

fs/fhandle.c

@@ -157,9 +157,8 @@ SYSCALL_DEFINE5(name_to_handle_at, int, dfd, const char __user *, name,
 		fh_flags |= EXPORT_FH_CONNECTABLE;
 
 	lookup_flags = (flag & AT_SYMLINK_FOLLOW) ? LOOKUP_FOLLOW : 0;
-	if (flag & AT_EMPTY_PATH)
-		lookup_flags |= LOOKUP_EMPTY;
-	err = user_path_at(dfd, name, lookup_flags, &path);
+	CLASS(filename_uflags, filename)(name, flag);
+	err = filename_lookup(dfd, filename, lookup_flags, &path, NULL);
 	if (!err) {
 		err = do_sys_name_to_handle(&path, handle, mnt_id,
 					    flag & AT_HANDLE_MNT_ID_UNIQUE,