linux-kernel - Re: [PATCH 3/4] block: implement mixed merge of different failfast requests

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Date:	Thu, 09 Jul 2009 09:47:50 +0900
From:	Tejun Heo <tj@...nel.org>
To:	Boaz Harrosh <bharrosh@...asas.com>
CC:	Jens Axboe <jens.axboe@...cle.com>,
	Linux Kernel <linux-kernel@...r.kernel.org>,
	James Bottomley <James.Bottomley@...senPartnership.com>,
	linux-scsi <linux-scsi@...r.kernel.org>,
	Niel Lambrechts <niel.lambrechts@...il.com>,
	FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>,
	Jens Axboe <axboe@...nel.dk>
Subject: Re: [PATCH 3/4] block: implement mixed merge of different failfast
 requests

Hello,

Boaz Harrosh wrote:
>> @@ -1165,6 +1165,7 @@ static int __make_request(struct request_queue *q, struct bio *bio)
>>  	const unsigned short prio = bio_prio(bio);
>>  	const int sync = bio_sync(bio);
>>  	const int unplug = bio_unplug(bio);
>> +	const unsigned int ff = bio->bi_rw & REQ_FAILFAST_MASK;
> 
> Perhaps a bio_fail_fast(bio)
> and also an blk_failfast(rq).

Me not being a big fan of those simple accessors, I want to avoid
adding those especially the use of bio ones are mostly confined to
block layer proper.

Thanks.

-- 
tejun
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