Re: [PATCH v5 1/2] mm,hwpoison: fix race with hugetlb page allocation

[Oscar Salvador <osalvador@xxxxxxx>]

On Thu, May 20, 2021 at 07:17:17AM +0000, HORIGUCHI NAOYA(堀口 直也) wrote:
> So I think of inserting the check to comply with the assumption of
> get_hwpoison_huge_page() like below:
> 
>         ret = get_hwpoison_huge_page(head, &hugetlb);
>         if (hugetlb)
>                 return ret;
> 
>         if (!PageLRU(head) && !__PageMovable(head))
>                 return 0;
> 
>         if (PageTransHuge(head)) {
>                 ...
>         }
> 
>         if (get_page_unless_zero(head)) {
>                 ...
>         }
> 
>         return 0;

Hi Naoya,

would you mind posting a complete draft of what it would look like?
I am having a hard time picturing it.


Thanks

-- 
Oscar Salvador
SUSE L3