MCDPART
part = MCDPART(dev);
int part = MCDPART(dev);
if (MCDPART(bp->b_dev) != RAW_PART &&
if (MCDPART(bp->b_dev) != RAW_PART)
blkno += lp->d_partitions[MCDPART(bp->b_dev)].p_offset;
part = MCDPART(dev);