linux-kernel - Re: [patch]blk-mq: blk_mq_tag_to

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Message-ID: <536FB5FC.6000305@kernel.dk>
Date:	Sun, 11 May 2014 11:40:12 -0600
From:	Jens Axboe <axboe@...nel.dk>
To:	Shaohua Li <shli@...nel.org>, Christoph Hellwig <hch@...radead.org>
CC:	linux-kernel@...r.kernel.org
Subject: Re: [patch]blk-mq: blk_mq_tag_to_rq should handle flush request

On 05/09/2014 10:00 PM, Shaohua Li wrote:
> On Fri, May 09, 2014 at 08:00:18AM -0700, Christoph Hellwig wrote:
>> On Fri, May 09, 2014 at 08:07:33PM +0800, Shaohua Li wrote:
>>>
>>> flush request is special, which borrows tag from other request. Need a special
>>> handling to get it from tag.
>>
>> Thanks, we probably need this one.  But I think you can simply test
>> REQ_FLUSH_SEQ the passed in request instead of the flush_rq_tag_valid
>> flag/
> 
> fair enough. updated one.
> 
>  
> Subject: blk-mq: blk_mq_tag_to_rq should handle flush request
> 
> flush request is special, which borrows tag from other request. Need a special
> handling to get it from tag.

This looks good, applied, thanks!

-- 
Jens Axboe

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