Re: 2.6.12-rc6-mm1

[Con Kolivas <kernel@kolivas.org>]

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On Sat, 11 Jun 2005 10:32, J.A. Magallon wrote:
> On 06.11, Con Kolivas wrote:
> > Here is what the patch _should_ have been. (*same warnings with this
> > patch about math demonstration and untested as should have been posted
> > with the earlier one*)
> >
> > +	if (idle == NOT_IDLE || rq->nr_running > 1) {
> > +		unsigned long prio_bias = 1;
> > +		if (rq->nr_running)
> > +			prio_bias = rq->prio_bias / rq->nr_running;
> > +		source_load *= prio_bias;
> > +	}
>
> Again... sorry, I don't try to be picky, just want to know if its worth or
> not...
>
> Would not be better something like:
>
> 	if (idle == NOT_IDLE || rq->nr_running > 1) {
> 		if (rq->nr_running)
> 			source_load = (source_load*rq->prio_bias) / rq->nr_running;
> 	}

I understand your concern, but by definition rq->nr_running will always be a 
factor of rq->prio_bias so integer math should be fine. Either will do.

Cheers,
Con

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