__sector_to_block
block = __sector_to_block(ec, sector);
dm_bufio_forget_buffers(ec->bufio, __sector_to_block(ec, sector), blocks);
block1 = __sector_to_block(ec, bio->bi_iter.bi_sector);
block2 = __sector_to_block(ec, bio_end_sector(bio));
return __sector_to_block(ec, end_sector) + (__block_mod(end_sector, ec->u_bs) ? 1 : 0);
sector_t block = __sector_to_block(ec, iter->bi_sector);