Re: [RFC PATCH v2 2/3] mm: Provide a function to get an additional pin on a page

[Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>]

On Thu, May 25, 2023 at 3:40 PM David Howells <dhowells@xxxxxxxxxx> wrote:
>
> +void page_get_additional_pin(struct page *page)
> +{
> +       struct folio *folio = page_folio(page);
> +
> +       if (page == ZERO_PAGE(0))
> +               return;

You added that nice "is_zero_folio()", and then you did the above anyway..

               Linus