linux-kernel - Re: [PATCH V12 08/20] block: introduce bio_for_each_bvec() and rq_for_each

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Message-ID: <20181126125549.GD6383@lst.de>
Date:   Mon, 26 Nov 2018 13:55:49 +0100
From:   Christoph Hellwig <hch@....de>
To:     Ming Lei <ming.lei@...hat.com>
Cc:     Jens Axboe <axboe@...nel.dk>, linux-block@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-mm@...ck.org,
        Theodore Ts'o <tytso@....edu>, Omar Sandoval <osandov@...com>,
        Sagi Grimberg <sagi@...mberg.me>,
        Dave Chinner <dchinner@...hat.com>,
        Kent Overstreet <kent.overstreet@...il.com>,
        Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
        Alexander Viro <viro@...iv.linux.org.uk>,
        linux-fsdevel@...r.kernel.org, Shaohua Li <shli@...nel.org>,
        linux-raid@...r.kernel.org, David Sterba <dsterba@...e.com>,
        linux-btrfs@...r.kernel.org,
        "Darrick J . Wong" <darrick.wong@...cle.com>,
        linux-xfs@...r.kernel.org, Gao Xiang <gaoxiang25@...wei.com>,
        Christoph Hellwig <hch@....de>, linux-ext4@...r.kernel.org,
        Coly Li <colyli@...e.de>, linux-bcache@...r.kernel.org,
        Boaz Harrosh <ooo@...ctrozaur.com>,
        Bob Peterson <rpeterso@...hat.com>, cluster-devel@...hat.com
Subject: Re: [PATCH V12 08/20] block: introduce bio_for_each_bvec() and
 rq_for_each_bvec()

On Mon, Nov 26, 2018 at 10:17:08AM +0800, Ming Lei wrote:
> bio_for_each_bvec() is used for iterating over multi-page bvec for bio
> split & merge code.
> 
> rq_for_each_bvec() can be used for drivers which may handle the
> multi-page bvec directly, so far loop is one perfect use case.
> 
> Reviewed-by: Omar Sandoval <osandov@...com>
> Signed-off-by: Ming Lei <ming.lei@...hat.com>

Looks fine,

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