atomic_long_add
atomic_long_add(num_fences, &t->num_fences);
atomic_long_add(num_waits, &t->num_waits);
atomic_long_add(1 << pt->order, &allocated_pages);
atomic_long_add(ttm->num_pages, &ttm_pages_allocated);
atomic_long_add(ttm->num_pages,