Re: [4/4] 2.6.23-rc3: known regressions

On Mon, 2007-08-20 at 23:26 -0700, Linus Torvalds wrote:
> 
> On Mon, 20 Aug 2007, Arjan van de Ven wrote:
> > 
> > untested patch to add this to cpufreq; this is probably a good idea in
> > general even if using the latency framework doesn't end up being used
> > for fixing this regression...
> > 
> > 
> > --- linux-2.6.23-rc2/drivers/cpufreq/cpufreq.c.org	2007-08-20 22:58:32.000000000 -0700
> > +++ linux-2.6.23-rc2/drivers/cpufreq/cpufreq.c	2007-08-20 23:02:21.000000000 -0700
> > @@ -1604,6 +1604,12 @@ static int __cpufreq_set_policy(struct c
> >  	if (ret)
> >  		goto error_out;
> >  
> > +
> > +	if (system_latency_constraint() < policy->cpuinfo.transition_latency) {
> 
> That looks broken. "system_latency_constraint()" is in us, but 
> transition_latency is in ns, afaik.
> 
> But adding a "/ 1000" to turn the ns into us, and it migth even work.


eh woops yes indeed.
Shows me for not testing; I'll do that tomorrow when I'm more awake
-- 
if you want to mail me at work (you don't), use arjan (at) linux.intel.com
Test the interaction between Linux and your BIOS via http://www.linuxfirmwarekit.org


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