- total_blocks = stp->n_blocks;
- total_blocks += stp->n_old_blocks;
- for (bd = stp->large_objects; bd; bd = bd->link) {
- total_blocks += bd->blocks;
- /* hack for megablock groups: they have an extra block or two in
- the second and subsequent megablocks where the block
- descriptors would normally go.
- */
+// (*1) Just like countBlocks, except that we adjust the count for a
+// megablock group so that it doesn't include the extra few blocks
+// that would be taken up by block descriptors in the second and
+// subsequent megablock. This is so we can tally the count with the
+// number of blocks allocated in the system, for memInventory().
+static nat
+countAllocdBlocks(bdescr *bd)
+{
+ nat n;
+ for (n=0; bd != NULL; bd=bd->link) {
+ n += bd->blocks;
+ // hack for megablock groups: see (*1) above