Re: [PATCH v4 1/2] mm/memory-failure: fix missing ->mf_stats count in hugetlb poison

On Tue, 13 Jan 2026 01:07:50 -0700 Jane Chu jane.chu@oracle.com wrote:

When a newly poisoned subpage ends up in an already poisoned hugetlb folio, 'num_poisoned_pages' is incremented, but the per node ->mf_stats is not. Fix the inconsistency by designating action_result() to update them both.

While at it, define __get_huge_page_for_hwpoison() return values in terms of symbol names for better readibility. Also rename folio_set_hugetlb_hwpoison() to hugetlb_update_hwpoison() since the function does more than the conventional bit setting and the fact three possible return values are expected.

Thanks. This looks rather different from the previous version so I moved it to the tail of the mm-hotfixes queue for additional test/review time.