linux-kernel - Re: [HELP-NEEDED, PATCH 0/3] Do not loose dirty bit on THP pages

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Message-Id: <95a2756a-dd56-e042-95ed-90f4078e0380@linux.vnet.ibm.com>
Date:   Thu, 15 Jun 2017 08:20:32 +0530
From:   "Aneesh Kumar K.V" <aneesh.kumar@...ux.vnet.ibm.com>
To:     Will Deacon <will.deacon@....com>
Cc:     "Kirill A. Shutemov" <kirill.shutemov@...ux.intel.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        Vlastimil Babka <vbabka@...e.cz>,
        Vineet Gupta <vgupta@...opsys.com>,
        Russell King <linux@...linux.org.uk>,
        Catalin Marinas <catalin.marinas@....com>,
        Ralf Baechle <ralf@...ux-mips.org>,
        "David S. Miller" <davem@...emloft.net>,
        Heiko Carstens <heiko.carstens@...ibm.com>,
        Martin Schwidefsky <schwidefsky@...ibm.com>,
        Andrea Arcangeli <aarcange@...hat.com>,
        linux-arch@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, mark.rutland@....com
Subject: Re: [HELP-NEEDED, PATCH 0/3] Do not loose dirty bit on THP pages



On Thursday 15 June 2017 06:35 AM, Aneesh Kumar K.V wrote:
> 

> W.r.t pmdp_invalidate() usage, I was wondering whether we can do that 
> early in __split_huge_pmd_locked().
> 


BTW by moving  pmdp_invalidate early, we can then get rid of

	pmdp_huge_split_prepare(vma, haddr, pmd);


-aneesh