-/* 28*/ sle64 allocated_size; /* Byte size of allocated space for the
- data attribute. NOTE: Is a multiple
- of the cluster size. */
-/* 30*/ sle64 data_size; /* Byte size of actual data in data
- attribute. */
+/* 28*/ sle64 allocated_size; /* Byte size of on-disk allocated space
+ for the unnamed data attribute. So
+ for normal $DATA, this is the
+ allocated_size from the unnamed
+ $DATA attribute and for compressed
+ and/or sparse $DATA, this is the
+ compressed_size from the unnamed
+ $DATA attribute. For a directory or
+ other inode without an unnamed $DATA
+ attribute, this is always 0. NOTE:
+ This is a multiple of the cluster
+ size. */
+/* 30*/ sle64 data_size; /* Byte size of actual data in unnamed
+ data attribute. For a directory or
+ other inode without an unnamed $DATA
+ attribute, this is always 0. */