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Date: Mon, 20 Jul 2020 11:49:31 +0300 From: "Kirill A. Shutemov" <kirill@...temov.name> To: Alex Shi <alex.shi@...ux.alibaba.com> Cc: akpm@...ux-foundation.org, mgorman@...hsingularity.net, tj@...nel.org, hughd@...gle.com, khlebnikov@...dex-team.ru, daniel.m.jordan@...cle.com, yang.shi@...ux.alibaba.com, willy@...radead.org, hannes@...xchg.org, lkp@...el.com, linux-mm@...ck.org, linux-kernel@...r.kernel.org, cgroups@...r.kernel.org, shakeelb@...gle.com, iamjoonsoo.kim@....com, richard.weiyang@...il.com, Mika Penttilä <mika.penttila@...tfour.com> Subject: Re: [PATCH v16 14/22] mm/thp: add tail pages into lru anyway in split_huge_page() On Fri, Jul 17, 2020 at 05:30:27PM +0800, Alex Shi wrote: > > Add a VM_WARN_ON for tracking. and updated comments for the code. > > Thanks > > --- > From f1381a1547625a6521777bf9235823d8fbd00dac Mon Sep 17 00:00:00 2001 > From: Alex Shi <alex.shi@...ux.alibaba.com> > Date: Fri, 10 Jul 2020 16:54:37 +0800 > Subject: [PATCH v16 14/22] mm/thp: add tail pages into lru anyway in > split_huge_page() > MIME-Version: 1.0 > Content-Type: text/plain; charset=UTF-8 > Content-Transfer-Encoding: 8bit > > Split_huge_page() must start with PageLRU(head), and we are holding the > lru_lock here. If the head was cleared lru bit unexpected, tracking it. > > Signed-off-by: Alex Shi <alex.shi@...ux.alibaba.com> Reviewed-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com> -- Kirill A. Shutemov
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