VDO_BLOCK_MAP_PARTITION
VDO_BLOCK_MAP_PARTITION),
result = vdo_get_partition(&states->layout, VDO_BLOCK_MAP_PARTITION,
result = make_partition(layout, VDO_BLOCK_MAP_PARTITION, block_map_blocks, true);
VDO_BLOCK_MAP_PARTITION,
result = clear_partition(vdo, VDO_BLOCK_MAP_PARTITION);