linux-kernel - Re: [PATCH 0/3] block: loop: switch to VFS ITER

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Date:	Tue, 24 Mar 2015 11:32:19 +0100
From:	Christoph Hellwig <hch@....de>
To:	Ming Lei <ming.lei@...onical.com>
Cc:	Jens Axboe <axboe@...com>, linux-kernel@...r.kernel.org,
	Christoph Hellwig <hch@....de>,
	Al Viro <viro@...iv.linux.org.uk>,
	Maxim Patlasov <mpatlasov@...allels.com>
Subject: Re: [PATCH 0/3] block: loop: switch to VFS ITER_BVEC

On Sun, Mar 22, 2015 at 04:14:51PM +0800, Ming Lei wrote:
> This patchset uses VFS ITER_BVEC for reading/writing
> loop backing file, and basically it is a rewriting of
> Christoph Hellwig's post in [1].

What is the benefit over my older version?  From all I can see the
code is a lot more complicated without any obvious benefit.
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