linux-kernel - Re: [PATCH v6 22/27] mm/filemap: Add end_folio

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Message-ID: <20210406141326.GU3062550@infradead.org>
Date:   Tue, 6 Apr 2021 15:13:26 +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 22/27] mm/filemap: Add end_folio_writeback

On Wed, Mar 31, 2021 at 07:47:23PM +0100, Matthew Wilcox (Oracle) wrote:
> Add an end_page_writeback() wrapper function for users that are not yet
> converted to folios.
> 
> end_folio_writeback() is less than half the size of end_page_writeback()
> at just 105 bytes compared to 213 bytes, due to removing all the
> compound_head() calls.  The 30 byte wrapper function makes this a net
> saving of 70 bytes.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

Looks good,

Reviewed-by: Christoph Hellwig <hch@....de>