Date: Mon, 26 Nov 2018 13:55:49 +0100
From: Christoph Hellwig <hch@lst.de>
To: Ming Lei <ming.lei@redhat.com>
Cc: Jens Axboe <axboe@kernel.dk>, linux-block@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-mm@kvack.org,
        Theodore Ts'o <tytso@mit.edu>, Omar Sandoval <osandov@fb.com>,
        Sagi Grimberg <sagi@grimberg.me>,
        Dave Chinner <dchinner@redhat.com>,
        Kent Overstreet <kent.overstreet@gmail.com>,
        Mike Snitzer <snitzer@redhat.com>, dm-devel@redhat.com,
        Alexander Viro <viro@zeniv.linux.org.uk>,
        linux-fsdevel@vger.kernel.org, Shaohua Li <shli@kernel.org>,
        linux-raid@vger.kernel.org, David Sterba <dsterba@suse.com>,
        linux-btrfs@vger.kernel.org,
        "Darrick J . Wong" <darrick.wong@oracle.com>,
        linux-xfs@vger.kernel.org, Gao Xiang <gaoxiang25@huawei.com>,
        Christoph Hellwig <hch@lst.de>, linux-ext4@vger.kernel.org,
        Coly Li <colyli@suse.de>, linux-bcache@vger.kernel.org,
        Boaz Harrosh <ooo@electrozaur.com>,
        Bob Peterson <rpeterso@redhat.com>, cluster-devel@redhat.com
Subject: Re: [PATCH V12 08/20] block: introduce bio_for_each_bvec() and
 rq_for_each_bvec()
Message-ID: <20181126125549.GD6383@lst.de>
References: <20181126021720.19471-1-ming.lei@redhat.com> <20181126021720.19471-9-ming.lei@redhat.com>
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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@fb.com>
> Signed-off-by: Ming Lei <ming.lei@redhat.com>

Looks fine,

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