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Date:   Tue, 6 Apr 2021 16:05:50 +0100
From:   Christoph Hellwig <hch@infradead.org>
To:     Matthew Wilcox <willy@infradead.org>
Cc:     Christoph Hellwig <hch@infradead.org>,
        "Kirill A. Shutemov" <kirill@shutemov.name>, linux-mm@kvack.org,
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        linux-cachefs@redhat.com, linux-afs@lists.infradead.org
Subject: Re: [PATCH v6 01/27] mm: Introduce struct folio
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On Tue, Apr 06, 2021 at 03:55:11PM +0100, Matthew Wilcox wrote:
> Assuming we're getting rid of them all though, we have to include:
> 
> $ git grep 'page->mapping' fs |wc -l
> 358
> $ git grep 'page->index' fs |wc -l
> 355

Are they all going to stay?  Or are we going to clean up some of that
mess.  A lot of ->index should be page_offet, and on the mapping side
the page_mapping and page_file_mapping mess is also waiting to be
sorted..