+// (*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().
+nat
+countAllocdBlocks(bdescr *bd)
+{
+ nat n;
+ for (n=0; bd != NULL; bd=bd->link) {
+ n += bd->blocks;
+ // hack for megablock groups: see (*1) above
+ if (bd->blocks > BLOCKS_PER_MBLOCK) {
+ n -= (MBLOCK_SIZE / BLOCK_SIZE - BLOCKS_PER_MBLOCK)
+ * (bd->blocks/(MBLOCK_SIZE/BLOCK_SIZE));
+ }
+ }
+ return n;