Re: [mm/page_alloc] 8212a964ee: vm-scalability.throughput 30.5% improvement

[Matthew Wilcox]

On Sun, Mar 13, 2022 at 02:10:12PM -0700, Eric Dumazet wrote:
> @@ -3065,6 +3062,12 @@ static int rmqueue_bulk(struct zone *zone,
> unsigned int order,
>          */
>         __mod_zone_page_state(zone, NR_FREE_PAGES, -(i << order));
>         spin_unlock(&zone->lock);
> +       list_for_each_entry_safe(page, tmp, list, lru) {
> +               if (unlikely(check_pcp_refill(page))) {
> +                       list_del(&page->lru);
> +                       allocated--;
> +               }
> +       }

... you'd need to adjust __mod_zone_page_state() too, right?

>         return allocated;
>  }
>