linux-kernel - Re: [PATCH v4] drivers/block/mtip32xx: Adding new driver mtip32xx

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Message-ID: <4E6E4EA5.1050701@fusionio.com>
Date:	Mon, 12 Sep 2011 20:25:41 +0200
From:	Jens Axboe <jaxboe@...ionio.com>
To:	Christoph Hellwig <hch@...radead.org>
CC:	"Sam Bradshaw (sbradshaw)" <sbradshaw@...ron.com>,
	"alan@...rguk.ukuu.org.uk" <alan@...rguk.ukuu.org.uk>,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jeff Garzik <jgarzik@...ox.com>,
	"jmoyer@...hat.com" <jmoyer@...hat.com>,
	"Asai Thambi Samymuthu Pattrayasamy (asamymuthupa) [CONTRACTOR]" 
	<asamymuthupa@...ron.com>
Subject: Re: [PATCH v4] drivers/block/mtip32xx: Adding new driver mtip32xx

On 2011-09-12 17:02, Christoph Hellwig wrote:
> On Fri, Sep 09, 2011 at 10:58:01AM +0200, Jens Axboe wrote:
>>>    Documentation/block/writeback_cache_control.txt file is the canonical
>>>    resource.  Implementing your driver at the make_request layer
>>>    unfortunately means you will have to do all the hard work yourself.
>>>  - also the call to blk_queue_flush(queue, 0); from ->make_request for
>>>    a non-data request is completely wrong.
>>
>> I noticed both of these flush/fua problems too and have fixed them up.
> 
> I still can't find any fixes in your repository.

It wasn't/isn't done, it's still sitting on the test box. I'll wrap it
up tomorrow.


-- 
Jens Axboe

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