linux-kernel - Re: [PATCH 26/28] blk_end_request: changing ide-cd (take 3)

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Date:	Tue, 4 Dec 2007 14:46:51 +0100
From:	Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
To:	Kiyoshi Ueda <k-ueda@...jp.nec.com>
Cc:	jens.axboe@...cle.com, bharrosh@...asas.com,
	linux-kernel@...r.kernel.org, linux-scsi@...r.kernel.org,
	linux-ide@...r.kernel.org, dm-devel@...hat.com,
	j-nomura@...jp.nec.com
Subject: Re: [PATCH 26/28] blk_end_request: changing ide-cd (take 3)


Hi,

On Monday 03 December 2007, Kiyoshi Ueda wrote:

[...]

> Thank you for the comments.
> I rebased my patch on top of 2.6.24-rc3-mm2 + the patch to remove
> post_transform_command().
> 
> As a result, one callback function for DMA mode has been removed.
> What do you think about the patch below?
> 
> 
> 
> Subject: [PATCH 26/28] blk_end_request: changing ide-cd (take 3)
> 
> 
> This patch converts ide-cd (cdrom_newpc_intr()) to use blk_end_request
> interfaces.
> 
> In PIO mode, ide-cd (cdrom_newpc_intr()) needs to defer
> end_that_request_last() until the device clears DRQ_STAT and raises
> an interrupt after end_that_request_first().
> So blk_end_request() has to return without completing request
> even if no leftover in the request.
> 
> ide-cd uses blk_end_request_callback() and a dummy callback function,
> which just returns value '1', to tell blk_end_request_callback()
> about that.
> 
> Signed-off-by: Kiyoshi Ueda <k-ueda@...jp.nec.com>
> Signed-off-by: Jun'ichi Nomura <j-nomura@...jp.nec.com>

Looks good, thanks!

Acked-by: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
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