ROUND_SECTOR
n = ROUND_SECTOR(size) >> DEV_BSHIFT;
if (dk_read(17, ROUND_SECTOR(*size) >> DEV_BSHIFT,
block += (ROUND_SECTOR(sz) >> DEV_BSHIFT) + 1;
sz = ROUND_SECTOR(sz);
*required_memory = ROUND_SECTOR(bfs->data_start);
n = (ROUND_SECTOR(bufsz) >> DEV_BSHIFT) - 1;
(ROUND_SECTOR(bnode->size) >> DEV_BSHIFT) - 1;