Index: uspace/srv/fs/udf/udf_ops.c
===================================================================
--- uspace/srv/fs/udf/udf_ops.c	(revision 3dd148d953c70e48d8af23bcc31daae517c34b27)
+++ uspace/srv/fs/udf/udf_ops.c	(revision b51cf2cfbf7533cc494e6a1795d62f5fbd481c87)
@@ -264,4 +264,18 @@
 }
 
+static int udf_total_block_count(service_id_t service_id, uint64_t *count)
+{
+	*count = 0;
+	
+	return EOK;
+}
+
+static int udf_free_block_count(service_id_t service_id, uint64_t *count)
+{
+	*count = 0;
+	
+	return EOK;
+}
+
 libfs_ops_t udf_libfs_ops = {
 	.root_get = udf_root_get,
@@ -281,5 +295,7 @@
 	.is_file = udf_is_file,
 	.service_get = udf_service_get,
-	.size_block = udf_size_block
+	.size_block = udf_size_block,
+	.total_block_count = udf_total_block_count,
+	.free_block_count = udf_free_block_count
 };