Re: Patch 2/6 introduce helper infrastructure

[Arjan van de Ven]

On Thu, 2005-01-27 at 13:27 +0100, Andi Kleen wrote:
> I guess the per MM prng would be still faster, but it's probably
> not worth tweaking unless it shows up as a problem.
> 
> > +	if (end <= start + len)
> > +		return 0;
> > +	return PAGE_ALIGN(get_random_int() % range + start);
> 
> Division through variable is often quite slow, it would be good if you
> avoided it somehow.

it'll be used once per exec() so while you're right I'll not be a huge
problem; rewriting the implementation of this function ought to be
independent of the (later to be introduced) users, the problem is quite
well defined.

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