linux-kernel - Re: [PATCH V5 4/8] block: move actual bio merge code into __elv

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Date:   Tue, 3 Oct 2017 02:16:34 -0700
From:   Christoph Hellwig <hch@...radead.org>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Jens Axboe <axboe@...com>, linux-block@...r.kernel.org,
        Christoph Hellwig <hch@...radead.org>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        Bart Van Assche <bart.vanassche@...disk.com>,
        Laurence Oberman <loberman@...hat.com>,
        Paolo Valente <paolo.valente@...aro.org>,
        Oleksandr Natalenko <oleksandr@...alenko.name>,
        Tom Nguyen <tom81094@...il.com>, linux-kernel@...r.kernel.org,
        Omar Sandoval <osandov@...com>
Subject: Re: [PATCH V5 4/8] block: move actual bio merge code into __elv_merge

On Sat, Sep 30, 2017 at 07:26:51PM +0800, Ming Lei wrote:
> So that we can reuse __elv_merge() to merge bio
> into requests from sw queue in the following patches.
> 
> No functional change.

There are very few callers of elv_merge, just update the function
with the new parameters instead of introducing __elv_merge.