linux-kernel - Re: [PATCH v6 00/27] Memory Folios

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Message-ID: <20210401070537.GB1363493@infradead.org>
Date:   Thu, 1 Apr 2021 08:05:37 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-mm@...ck.org, linux-kernel@...r.kernel.org,
        linux-fsdevel@...r.kernel.org, linux-cachefs@...hat.com,
        linux-afs@...ts.infradead.org
Subject: Re: [PATCH v6 00/27] Memory Folios

On Wed, Mar 31, 2021 at 07:47:01PM +0100, Matthew Wilcox (Oracle) wrote:
>  - Mirror members of struct page (for pagecache / anon) into struct folio,
>    so (eg) you can use folio->mapping instead of folio->page.mapping

Eww, why?