linux-kernel - Re: [PATCH v11 30/33] mm/filemap: Convert page wait queues to be folios

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Message-ID: <816231.1623839747@warthog.procyon.org.uk>
Date:   Wed, 16 Jun 2021 11:35:47 +0100
From:   David Howells <dhowells@...hat.com>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     dhowells@...hat.com, akpm@...ux-foundation.org,
        linux-fsdevel@...r.kernel.org, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org, Christoph Hellwig <hch@....de>,
        Jeff Layton <jlayton@...nel.org>,
        "Kirill A . Shutemov" <kirill.shutemov@...ux.intel.com>,
        Vlastimil Babka <vbabka@...e.cz>,
        William Kucharski <william.kucharski@...cle.com>
Subject: Re: [PATCH v11 30/33] mm/filemap: Convert page wait queues to be folios

Matthew Wilcox (Oracle) <willy@...radead.org> wrote:

> Reinforce that page flags are actually in the head page by changing the
> type from page to folio.  Increases the size of cachefiles by two bytes,
> but the kernel core is unchanged in size.

Hopefully we can get rid of that bit of code in cachefiles soon.

> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
> Reviewed-by: Christoph Hellwig <hch@....de>
> Acked-by: Jeff Layton <jlayton@...nel.org>
> Acked-by: Kirill A. Shutemov <kirill.shutemov@...ux.intel.com>
> Acked-by: Vlastimil Babka <vbabka@...e.cz>
> Reviewed-by: William Kucharski <william.kucharski@...cle.com>

Reviewed-by: David Howells <dhowells@...hat.com>