Re: [BUG]cpufreq_ondemand: a recent regression

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On Tuesday 02 June 2009 16:48:51 Dave Jones wrote:
> On Tue, Jun 02, 2009 at 03:02:38PM +0200, Thomas Renninger wrote:
> 
>  > Locking in cpufreq subsystem always is/was a nightmare.
>  > I brought this up already and there were not much objections:
>  > 
>  > Can we reduce complexity and disallow different governors on
>  > different
>  > cores?
> 
> I think this is the way forward.  It's hard to think of a use-case
> where this is a useful feature.
> Though we'd still have to go through the usual feature-removal
> process.
How would that look like?:
The sysfs interface would be the same and these would be kept:
/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors
/sys/devices/system/cpu/cpu0/cpufreq/scaling_governor

But it's enough to write to one instead of all and these should be
links.

Or does it make sense to introduce:
/sys/devices/system/cpu/cpufreq/scaling_available_governors
/sys/devices/system/cpu/cpufreq/scaling_governor
and link above to these until deprecation time out is over. If
/sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
is used, one could be told to use:
/sys/devices/system/cpu/cpufreq/scaling_governor
instead, because the other will fall off at some time.

Beside documentation is there anything else to wait for implementing 
this?

   Thomas
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