Messages in this thread Patch in this message | | | Date | Mon, 19 Aug 2019 14:57:51 +0300 | From | "Kirill A. Shutemov" <> | Subject | Re: [PATCH 1/3] mm, page_owner: record page owner for each subpage |
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On Mon, Aug 19, 2019 at 11:55:51AM +0000, Kirill A. Shutemov wrote: > > @@ -2533,6 +2534,8 @@ static void __split_huge_page(struct page *page, struct list_head *list, > > > > remap_page(head); > > > > + split_page_owner(head, HPAGE_PMD_ORDER); > > + > > I think it has to be before remap_page(). This way nobody would be able to > mess with the page until it has valid page_owner.
Or rather next to ClearPageCompound().
-- Kirill A. Shutemov
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