switch udf to simple_fsync()

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
diff --git a/fs/udf/dir.c b/fs/udf/dir.c
index 2efd4d5..61d9a76 100644
--- a/fs/udf/dir.c
+++ b/fs/udf/dir.c
@@ -210,5 +210,5 @@
 	.read			= generic_read_dir,
 	.readdir		= udf_readdir,
 	.ioctl			= udf_ioctl,
-	.fsync			= udf_fsync_file,
+	.fsync			= simple_fsync,
 };