ENTRIES_PER_BLOCK
int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
ENTRIES_PER_BLOCK * num_blocks - records_read,
int alloc_unit = sizeof(struct kvp_record) * ENTRIES_PER_BLOCK;
if (num_records == (ENTRIES_PER_BLOCK * num_blocks)) {
ENTRIES_PER_BLOCK * (num_blocks + 1));