Re: [PATCH v2 3/3] mm/memory-failure: simplify __page_handle_poison

[Matthew Wilcox]

On Fri, Dec 19, 2025 at 06:33:46PM +0000, Jiaqi Yan wrote:
> Now that no HWPoison page will be given away to buddy allocator
> at the end of dissolve_free_hugetlb_folio, there is no need to
> drain_all_pages and take_page_off_buddy anymore, so remove them.

What if we discover a hardware error in a page which is currently
in the buddy system?  Why don't we need to remove that page from the
buddy system?