diff --git a/fs/udf/udf_i.h b/fs/udf/udf_i.h
index d6d9a77..4f86b1d 100644
--- a/fs/udf/udf_i.h
+++ b/fs/udf/udf_i.h
@@ -12,8 +12,8 @@
 	__u32			i_next_alloc_block;
 	__u32			i_next_alloc_goal;
 	unsigned		i_alloc_type : 3;
-	unsigned		i_efe : 1;
-	unsigned		i_use : 1;
+	unsigned		i_efe : 1;	/* extendedFileEntry */
+	unsigned		i_use : 1;	/* unallocSpaceEntry */
 	unsigned		i_strat4096 : 1;
 	unsigned		reserved : 26;
 	union {