DIRECT_TBL_SIZE
x_size = sizeof(*da->x_tbl) * DIRECT_TBL_SIZE / d_tbl_size
da->updates_low = DIRECT_TBL_SIZE - 1;
#define XTBL_SIZE_INCR (DIRECT_TBL_SIZE / 16)
struct direct_entry direct_tbl[DIRECT_TBL_SIZE];
uint32_t updates_mask[DIRECT_TBL_SIZE / 32];
da->updates_high = DIRECT_TBL_SIZE - 1;
for (i = 0; i < DIRECT_TBL_SIZE; i++) {
da->updates_high = DIRECT_TBL_SIZE - 1;