dm_tm_new_block
r = dm_tm_new_block(info->btree_info.tm, &array_validator, block);
return dm_tm_new_block(info->tm, &btree_node_validator, result);
r = dm_tm_new_block(ll->tm, &dm_sm_bitmap_validator, &b);
r = dm_tm_new_block(ll->tm, &index_validator, &b);
int dm_tm_new_block(struct dm_transaction_manager *tm,