Re: [PATCH 1/3] userfaultfd: UFFDIO_REMAP: rmap preparation

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To: Suren Baghdasaryan <surenb@xxxxxxxxxx>
Subject: Re: [PATCH 1/3] userfaultfd: UFFDIO_REMAP: rmap preparation
From: Matthew Wilcox <willy@xxxxxxxxxxxxx>
Date: Thu, 14 Sep 2023 18:56:35 +0100
Cc: akpm@xxxxxxxxxxxxxxxxxxxx, viro@xxxxxxxxxxxxxxxxxx, brauner@xxxxxxxxxx, shuah@xxxxxxxxxx, aarcange@xxxxxxxxxx, lokeshgidra@xxxxxxxxxx, peterx@xxxxxxxxxx, david@xxxxxxxxxx, hughd@xxxxxxxxxx, mhocko@xxxxxxxx, axelrasmussen@xxxxxxxxxx, rppt@xxxxxxxxxx, Liam.Howlett@xxxxxxxxxx, jannh@xxxxxxxxxx, zhangpeng362@xxxxxxxxxx, bgeffon@xxxxxxxxxx, kaleshsingh@xxxxxxxxxx, ngeoffray@xxxxxxxxxx, jdduke@xxxxxxxxxx, linux-mm@xxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-kselftest@xxxxxxxxxxxxxxx, kernel-team@xxxxxxxxxxx
In-reply-to: <20230914152620.2743033-2-surenb@google.com>

On Thu, Sep 14, 2023 at 08:26:11AM -0700, Suren Baghdasaryan wrote:
> From: Andrea Arcangeli <aarcange@xxxxxxxxxx>
> 
> As far as the rmap code is concerned, UFFDIO_REMAP only alters the
> page->mapping and page->index. It does it while holding the page

folio->mapping and folio->index.  It does it while holding the folio

No other objections ...

Follow-Ups:
- Re: [PATCH 1/3] userfaultfd: UFFDIO_REMAP: rmap preparation
  - From: Suren Baghdasaryan

References:
- [PATCH 0/3] userfaultfd remap option
  - From: Suren Baghdasaryan
- [PATCH 1/3] userfaultfd: UFFDIO_REMAP: rmap preparation
  - From: Suren Baghdasaryan

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