linux-kernel - Re: [PATCH] block: make sure FSEQ_DATA request has the same rq

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Message-ID: <4C80E14F.9040307@ct.jp.nec.com>
Date:	Fri, 03 Sep 2010 20:51:43 +0900
From:	Kiyoshi Ueda <k-ueda@...jp.nec.com>
To:	Tejun Heo <tj@...nel.org>
CC:	Mike Snitzer <snitzer@...hat.com>, jaxboe@...ionio.com,
	j-nomura@...jp.nec.com, jamie@...reable.org,
	linux-kernel@...r.kernel.org, linux-fsdevel@...r.kernel.org,
	linux-raid@...r.kernel.org, hch@....de
Subject: Re: [PATCH] block: make sure FSEQ_DATA request has the same rq_disk
 as the original

Hi Tejun,

On 09/03/2010 08:42 PM +0900, Tejun Heo wrote:
> Hello,
> 
> On 09/03/2010 12:28 PM, Kiyoshi Ueda wrote:
>> Thank you for pointing it.
>> Yes, the interface should also set rq->q.
>>
>> About the naming of the interface, blk_set_<something> sounds
>> reasonable to me.
>> But does blk_set_rq_q() take request and queue as arguments?
>> Then, I'm afraid we can't find bdev for bio from given queue.
> 
> Oh, right.  Maybe blk_set_rq_bdev() then?

Yeah, although struct request doesn't have the member 'bdev',
blk_set_rq_bdev() may be better from the view of the arguments.

Thanks,
Kiyoshi Ueda
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