From: Andreas Schwab <schwab@suse.de>
To: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Cc: bzolnier@gmail.com, linux-kernel@vger.kernel.org, jens.axboe@oracle.com,
       petkovbb@gmail.com, j-nomura@ce.jp.nec.com
Subject: Re: 2.6.25-rc1/2 CD/DVD burning broken
References: <jelk5k62uy.fsf@sykes.suse.de>
	<58cb370e0802180759h4d44b9bci86f02919a48c7979@mail.gmail.com>
	<20080218.135827.74754725.k-ueda@ct.jp.nec.com>
Date: Mon, 18 Feb 2008 21:19:53 +0100
In-Reply-To: <20080218.135827.74754725.k-ueda@ct.jp.nec.com> (Kiyoshi Ueda's
	message of "Mon\, 18 Feb 2008 13\:58\:27 -0500 \(EST\)")
Message-ID: <jey79if252.fsf@sykes.suse.de>
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Kiyoshi Ueda <k-ueda@ct.jp.nec.com> writes:

> Could you try this patch?
> I've only done a compile test, so this patch may not work.
>
> During the conversion to blk_end_request, the code was changed
> *not* to set rq->data_len = 0.
> I removed that part because I thought it was just a trigger to
> call post_transform_command().  However, since data_len can be
> used as a residual length of the transfer, it might have to remain
> there.
> Actually, wodim seems checking the residual count how far it wrote
> (e.g. wodim/wodim.c:write_track_data()).
>
> This patch brings back the rq->data_len = 0.

Looks good, I was successfully able to burn a CD-RW.

Thanks, Andreas.

-- 
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux Products GmbH, Maxfeldstra?e 5, 90409 N?rnberg, Germany
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