Re: [PATCH v5] mm/rmap: do not add fully unmapped large folio to deferred split list

[Alexander Gordeev]

On Wed, May 01, 2024 at 09:38:24AM -0400, Zi Yan wrote:
Hi Zi,
> @@ -1557,9 +1557,8 @@ static __always_inline void __folio_remove_rmap(struct folio *folio,
>                  * page of the folio is unmapped and at least one page
>                  * is still mapped.
>                  */
> -               if (folio_test_anon(folio) &&
> -                   list_empty(&folio->_deferred_list) &&
> -                   partially_mapped)
> +               if (folio_test_anon(folio) && partially_mapped &&
> +                   list_empty(&folio->_deferred_list))
>                         deferred_split_folio(folio);
>         }

That helps.

> Best Regards,
> Yan, Zi

Thanks!