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Date: Fri, 11 Mar 2022 11:49:30 -0800 From: Linus Torvalds <torvalds@...ux-foundation.org> To: David Hildenbrand <david@...hat.com> Cc: Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Andrew Morton <akpm@...ux-foundation.org>, Hugh Dickins <hughd@...gle.com>, David Rientjes <rientjes@...gle.com>, Shakeel Butt <shakeelb@...gle.com>, John Hubbard <jhubbard@...dia.com>, Jason Gunthorpe <jgg@...dia.com>, Mike Kravetz <mike.kravetz@...cle.com>, Mike Rapoport <rppt@...ux.ibm.com>, Yang Shi <shy828301@...il.com>, "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>, Matthew Wilcox <willy@...radead.org>, Vlastimil Babka <vbabka@...e.cz>, Jann Horn <jannh@...gle.com>, Michal Hocko <mhocko@...nel.org>, Nadav Amit <namit@...are.com>, Rik van Riel <riel@...riel.com>, Roman Gushchin <guro@...com>, Andrea Arcangeli <aarcange@...hat.com>, Peter Xu <peterx@...hat.com>, Donald Dutile <ddutile@...hat.com>, Christoph Hellwig <hch@....de>, Oleg Nesterov <oleg@...hat.com>, Jan Kara <jack@...e.cz>, Liang Zhang <zhangliang5@...wei.com>, Pedro Gomes <pedrodemargomes@...il.com>, Oded Gabbay <oded.gabbay@...il.com>, Linux-MM <linux-mm@...ck.org> Subject: Re: [PATCH v1 10/15] mm/page-flags: reuse PG_slab as PG_anon_exclusive for PageAnon() pages On Fri, Mar 11, 2022 at 11:36 AM David Hildenbrand <david@...hat.com> wrote: > > Yes, but PG_has_hwpoisoned is located on the second subpage of a > compound page, not on the head page. Ahh. Ok, I missed that when just looking at the patch. I wish we had a different namespace entirely for those separate bits or something. Linus
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