ufs: missing ->splice_write()

normal ->write_iter()-based ->splice_write() works here just fine...

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

Author: Al Viro

fs/ufs/file.c

@@ -42,4 +42,5 @@ const struct file_operations ufs_file_operations = {
 	.open           = generic_file_open,
 	.fsync		= generic_file_fsync,
 	.splice_read	= filemap_splice_read,
+	.splice_write	= iter_file_splice_write,
 };