[PATCH RFC - TAKE TWO - 06/12] block, bfq: improve responsiveness

Tejun Heo tj at kernel.org
Fri May 30 15:41:23 UTC 2014


On Thu, May 29, 2014 at 11:05:37AM +0200, Paolo Valente wrote:
> @@ -281,7 +323,8 @@ static inline unsigned long bfq_serv_to_charge(struct request *rq,
>  					       struct bfq_queue *bfqq)
>  {
>  	return blk_rq_sectors(rq) *
> -		(1 + ((!bfq_bfqq_sync(bfqq)) * bfq_async_charge_factor));
> +		(1 + ((!bfq_bfqq_sync(bfqq)) * (bfqq->wr_coeff == 1) *
> +		bfq_async_charge_factor));

Ah, okay, so you actually use it later.  Please disregard my previous
comment about dropping the wrapper.

Thanks.

-- 
tejun


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