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Date:   Thu, 14 Sep 2023 18:56:35 +0100
From:   Matthew Wilcox <willy@infradead.org>
To:     Suren Baghdasaryan <surenb@google.com>
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Subject: Re: [PATCH 1/3] userfaultfd: UFFDIO_REMAP: rmap preparation
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On Thu, Sep 14, 2023 at 08:26:11AM -0700, Suren Baghdasaryan wrote:
> From: Andrea Arcangeli <aarcange@redhat.com>
> 
> 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 ...