linux-kernel - Re: [PATCH v14 087/138] mm/filemap: Convert mapping_get

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Message-ID: <e3278134-172a-e7ff-ca59-84d671fc7d47@suse.cz>
Date:   Thu, 12 Aug 2021 19:37:13 +0200
From:   Vlastimil Babka <vbabka@...e.cz>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>,
        linux-kernel@...r.kernel.org
Cc:     linux-mm@...ck.org, linux-fsdevel@...r.kernel.org,
        Christoph Hellwig <hch@....de>
Subject: Re: [PATCH v14 087/138] mm/filemap: Convert mapping_get_entry to
 return a folio

On 7/15/21 5:36 AM, Matthew Wilcox (Oracle) wrote:
> The pagecache only contains folios, so indicate that this is definitely
> not a tail page.  Shrinks mapping_get_entry() by 56 bytes, but grows
> pagecache_get_page() by 21 bytes as gcc makes slightly different hot/cold
> code decisions.  A net reduction of 35 bytes of text.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>
> Reviewed-by: Christoph Hellwig <hch@....de>

Acked-by: Vlastimil Babka <vbabka@...e.cz>