linux-kernel - Re: [PATCH 0/4] mm: migrate: more folio conversion

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Message-ID: <32b748d2-3d88-87d6-3797-c82d7bb7a927@huawei.com>
Date:   Wed, 2 Aug 2023 20:38:17 +0800
From:   Kefeng Wang <wangkefeng.wang@...wei.com>
To:     David Hildenbrand <david@...hat.com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>
CC:     Huang Ying <ying.huang@...el.com>,
        Matthew Wilcox <willy@...radead.org>
Subject: Re: [PATCH 0/4] mm: migrate: more folio conversion



On 2023/8/2 19:47, David Hildenbrand wrote:
> On 02.08.23 11:53, Kefeng Wang wrote:
>> This patch series converts several functions to use folio in migrate.c.
> 
> Please clearly spell out in the patch descriptions when you are changing 
> mapcount logic and which effects that might have (both, positive and 
> negative) for PTE-mapped THP.

Oh, I see your comments on another mail[1], the folio_estimated_sharers()
is not good to evaluate the sharing by multiple processes, will read more
history of the mail's discussion, maybe just ignore the first three patches.

Thank.


[1] [PATCH 0/2] don't use mapcount() to check large folio sharing
>