linux-kernel - Re: [PATCH 08/12] dm: dm.c: replace 'bio->bi_vcnt == 1' with !bio_multiple

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Date:   Mon, 21 Nov 2016 09:50:17 -0500
From:   Mike Snitzer <snitzer@...hat.com>
To:     Ming Lei <tom.leiming@...il.com>
Cc:     Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org,
        linux-block@...r.kernel.org, linux-fsdevel@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>,
        Alasdair Kergon <agk@...hat.com>,
        "maintainer:DEVICE-MAPPER (LVM)" <dm-devel@...hat.com>,
        Shaohua Li <shli@...nel.org>,
        "open list:SOFTWARE RAID (Multiple Disks) SUPPORT" 
        <linux-raid@...r.kernel.org>
Subject: Re: [PATCH 08/12] dm: dm.c: replace 'bio->bi_vcnt == 1' with
 !bio_multiple_segments

On Fri, Nov 11 2016 at  7:05am -0500,
Ming Lei <tom.leiming@...il.com> wrote:

> Avoid to access .bi_vcnt directly, because the bio can be
> splitted from block layer, and .bi_vcnt should never have
> been used here.
> 
> Signed-off-by: Ming Lei <tom.leiming@...il.com>

I've staged this for 4.10