linux-kernel - Re: [PATCH 6/7] mq-deadline: add blk-mq adaptation of the deadline IO scheduler

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Message-ID: <d48260a6-c7f1-d5ed-bc21-80b69ed9d2f6@fb.com>
Date:   Wed, 14 Dec 2016 08:02:59 -0700
From:   Jens Axboe <axboe@...com>
To:     Bart Van Assche <bart.vanassche@...disk.com>, <axboe@...nel.dk>,
        <linux-block@...r.kernel.org>, <linux-kernel@...r.kernel.org>
CC:     <paolo.valente@...aro.org>, <osandov@...com>
Subject: Re: [PATCH 6/7] mq-deadline: add blk-mq adaptation of the deadline IO
 scheduler

On 12/14/2016 01:09 AM, Bart Van Assche wrote:
> On 12/08/2016 09:13 PM, Jens Axboe wrote:
>> +static inline bool dd_rq_is_shadow(struct request *rq)
>> +{
>> +	return rq->rq_flags & RQF_ALLOCED;
>> +}
> 
> Hello Jens,
> 
> Something minor: because req_flags_t has been defined using __bitwise
> (typedef __u32 __bitwise req_flags_t) sparse complains for the above
> function about converting req_flags_t into bool. How about changing the
> body of that function into "return (rq->rq_flags & RQF_ALLOCED) != 0" to
> keep sparse happy?

Sure, I can fold in that change.

-- 
Jens Axboe