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Date: Wed, 14 Sep 2022 13:49:27 -0700 From: Andrew Morton <akpm@...ux-foundation.org> To: Doug Berger <opendmb@...il.com> Cc: Mike Kravetz <mike.kravetz@...cle.com>, Muchun Song <songmuchun@...edance.com>, Oscar Salvador <osalvador@...e.de>, linux-mm@...ck.org, linux-kernel@...r.kernel.org, stable@...r.kernel.org Subject: Re: [PATCH] mm/hugetlb: correct demote page offset logic On Wed, 14 Sep 2022 12:09:17 -0700 Doug Berger <opendmb@...il.com> wrote: > With gigantic pages it may not be true that struct page structures > are contiguous across the entire gigantic page. The nth_page macro > is used here in place of direct pointer arithmetic to correct for > this. What were the user-visible runtime effects of this bug?
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