linux-kernel - Re: [PATCH v2 2/3] userfaultfd: convert __mcopy_atomic

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Date:   Thu, 16 Mar 2023 11:53:59 +0800
From:   "zhangpeng (AS)" <zhangpeng362@...wei.com>
To:     Mike Kravetz <mike.kravetz@...cle.com>
CC:     <linux-mm@...ck.org>, <linux-kernel@...r.kernel.org>,
        <willy@...radead.org>, <akpm@...ux-foundation.org>,
        <vishal.moola@...il.com>, <sidhartha.kumar@...cle.com>,
        <wangkefeng.wang@...wei.com>, <sunnanyong@...wei.com>
Subject: Re: [PATCH v2 2/3] userfaultfd: convert __mcopy_atomic_hugetlb() to
 use a folio

On 2023/3/16 3:53, Mike Kravetz wrote:

> On 03/14/23 13:13, Peng Zhang wrote:
>> From: ZhangPeng <zhangpeng362@...wei.com>
>>
>> Change copy_huge_page_from_user() to copy_folio_from_user().
> Any reason why you did not change copy_user_huge_page to folios as
> well?  All callers are passing &folio->page.
>
> Just my opinion, but it might be better/easier to review if the copy
> routines were done in a separate patch.  There is a little more than
> folio conversion happening there.

Thanks for your review.

I will change copy_user_huge_page to folios and split this patch in a
v3 of this patch series.

Thanks,
Peng.