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Subject: Re: [PATCH v10 21/33] mm/filemap: Add __folio_lock_async
To:     "Matthew Wilcox (Oracle)" <willy@infradead.org>,
        akpm@linux-foundation.org
Cc:     linux-fsdevel@vger.kernel.org, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, Christoph Hellwig <hch@lst.de>,
        Jeff Layton <jlayton@kernel.org>
References: <20210511214735.1836149-1-willy@infradead.org>
 <20210511214735.1836149-22-willy@infradead.org>
From:   Vlastimil Babka <vbabka@suse.cz>
Message-ID: <7fb7b8a3-b559-88d6-b46e-d822fc689500@suse.cz>
Date:   Tue, 18 May 2021 12:34:30 +0200
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On 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote:
> There aren't any actual callers of lock_page_async(), so remove it.
> Convert filemap_update_page() to call __folio_lock_async().
> 
> __folio_lock_async() is 21 bytes smaller than __lock_page_async(),
> but the real savings come from using a folio in filemap_update_page(),
> shrinking it from 514 bytes to 403 bytes, saving 111 bytes.  The text
> shrinks by 132 bytes in total.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
> Reviewed-by: Christoph Hellwig <hch@lst.de>
> Acked-by: Jeff Layton <jlayton@kernel.org>


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