linux-kernel - Re: [PATCH v2 6/9] iomap: Convert read_count to read_bytes

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Message-ID: <20200911053650.GB15114@infradead.org>
Date:   Fri, 11 Sep 2020 06:36:50 +0100
From:   Christoph Hellwig <hch@...radead.org>
To:     "Matthew Wilcox (Oracle)" <willy@...radead.org>
Cc:     linux-xfs@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        Christoph Hellwig <hch@...radead.org>,
        linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
        Dave Kleikamp <shaggy@...nel.org>,
        jfs-discussion@...ts.sourceforge.net
Subject: Re: [PATCH v2 6/9] iomap: Convert read_count to read_bytes_pending

On Fri, Sep 11, 2020 at 12:47:04AM +0100, Matthew Wilcox (Oracle) wrote:
> Instead of counting bio segments, count the number of bytes submitted.
> This insulates us from the block layer's definition of what a 'same page'
> is, which is not necessarily clear once THPs are involved.
> 
> Signed-off-by: Matthew Wilcox (Oracle) <willy@...radead.org>

Looks good,

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