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Date: Thu, 10 Nov 2016 14:01:56 +0530 From: Anshuman Khandual <khandual@...ux.vnet.ibm.com> To: Naoya Horiguchi <n-horiguchi@...jp.nec.com>, linux-mm@...ck.org Cc: "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>, Hugh Dickins <hughd@...gle.com>, Andrew Morton <akpm@...ux-foundation.org>, Dave Hansen <dave.hansen@...el.com>, Andrea Arcangeli <aarcange@...hat.com>, Mel Gorman <mgorman@...hsingularity.net>, Michal Hocko <mhocko@...nel.org>, Vlastimil Babka <vbabka@...e.cz>, Pavel Emelyanov <xemul@...allels.com>, Zi Yan <zi.yan@...rutgers.edu>, Balbir Singh <bsingharora@...il.com>, linux-kernel@...r.kernel.org, Naoya Horiguchi <nao.horiguchi@...il.com> Subject: Re: [PATCH v2 03/12] mm: thp: introduce separate TTU flag for thp freezing On 11/08/2016 05:01 AM, Naoya Horiguchi wrote: > TTU_MIGRATION is used to convert pte into migration entry until thp split > completes. This behavior conflicts with thp migration added later patches, Hmm, could you please explain why it conflicts with the PMD based migration without split ? Why TTU_MIGRATION cannot be used to freeze/hold on the PMD while it's being migrated ?
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