linux-kernel - Re: [RFC][PATCH 0/7] cpufreq / sched: cpufreq_update

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Date:	Mon, 08 Aug 2016 15:01:04 +0200
From:	"Rafael J. Wysocki" <rjw@...ysocki.net>
To:	Peter Zijlstra <peterz@...radead.org>
Cc:	Doug Smythies <dsmythies@...us.net>,
	'Linux PM list' <linux-pm@...r.kernel.org>,
	'Srinivas Pandruvada' <srinivas.pandruvada@...ux.intel.com>,
	'Viresh Kumar' <viresh.kumar@...aro.org>,
	'Linux Kernel Mailing List' <linux-kernel@...r.kernel.org>,
	'Steve Muckle' <steve.muckle@...aro.org>,
	'Juri Lelli' <juri.lelli@....com>,
	'Ingo Molnar' <mingo@...nel.org>
Subject: Re: [RFC][PATCH 0/7] cpufreq / sched: cpufreq_update_util() flags and iowait boosting

On Monday, August 08, 2016 01:08:22 PM Peter Zijlstra wrote:
> On Mon, Aug 01, 2016 at 06:30:27PM +0200, Rafael J. Wysocki wrote:
> > >  CPU_FREQ_GOV_SCHEDUTIL m -> y
> 
> > > ERROR: "runqueues" [kernel/sched/cpufreq_schedutil.ko] undefined!
> 
> > There are some export_symbol declarations missing, I'll fix that up.
> 
> Do you really need that thing to be a module? I would raelly like to not
> export runqueues. People have had 'crazy' ideas in the past.

It doesn't have to be a module, but it is today.

Well, I guess accessing scheduler data directly is a good enough resone for
making it non-modular. :-)

Thanks,
Rafael