fifo_push
curr_corr = fifo_push(plan, 0);
fifo_push(&ca->free_inc, b - ca->buckets);
if (fifo_push(&ca->free[RESERVE_PRIO], bucket))
if (fifo_push(&ca->free[i], bucket))
if (!fifo_push(&ca->free[RESERVE_PRIO],
fifo_push(&ca->free[RESERVE_BTREE],
BUG_ON(!fifo_push(&j->pin, p));
fifo_push(dest, _t); \