to_dblock
r = fn(context, cmd->discard_block_size, to_dblock(b),
r = fn(context, cmd->discard_block_size, to_dblock(b), false);
cmd->discard_nr_blocks = to_dblock(le64_to_cpu(disk_super->discard_nr_blocks));
*b = to_dblock(dm_sector_div_up(sb, cache->discard_block_size));
*e = to_dblock(block_div(se, cache->discard_block_size));
b = to_dblock(from_dblock(b) + 1);
cache->discard_nr_blocks = to_dblock(dm_sector_div_up(cache->origin_sectors,
r = dm_cache_set_discard(cache->cmd, to_dblock(i),
is_discarded(cache, to_dblock(i)));
set_discard(li->cache, to_dblock(b));
return to_dblock(block_div(from_oblock(oblock),