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    SubjectRe: [PATCH] HWPOISON: Implement hwpoison-on-free for soft offlining
    Date
    > --- a/mm/page_alloc.c
    > +++ b/mm/page_alloc.c
    > @@ -564,6 +564,8 @@ static inline int free_pages_check(struct page *page)
    > (page->mapping != NULL) |
    > (atomic_read(&page->_count) != 0) |
    > (page->flags & PAGE_FLAGS_CHECK_AT_FREE))) {
    > + if (PageHWPoisonOnFree(page))
    > + hwpoison_page_on_free(page);

    hwpoison_page_on_free() seems to be undefined when
    CONFIG_HWPOISON_ON_FREE is not defined.

    > bad_page(page);
    > return 1;
    > }

    And of course PAGE_FLAGS_CHECK_AT_FREE should include pahehwpoisononfree this to be effective

    --Mika




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