Re: PATCH [0/3]: Simplify the kernel build by removing perl.

[Rob Landley]

On Saturday 03 January 2009 18:44:58 Robert Hancock wrote:
> Rob Landley wrote:
> > For the record, the reason I can't just pregenerate all these suckers on
> > a system that's got an arbitrary precision calculator (ala dc) and then
> > just ship the resulting header files (more or less the what the first
> > version of that first patch did) is that some architectures (arm omap and
> > and arm at91) allow you to enter arbitrary HZ values in kconfig.  (Their
> > help text says that in many cases values that aren't powers of two won't
> > work, but nothing enforces this.)  So if we didn't have the capability to
> > dynamically generate these, you could enter a .config value that would
> > break the build.
>
> Is there a good reason that these archs allow you enter arbitrary HZ
> values?

Not that I've noticed, no.  But you should ask Thomas Gleixner about that 
about that, I'm not a domain expert...

> The use case for using custom HZ values at all nowadays seems
> fairly low now that dynticks is around (if that arch supports it
> anyway), let alone being able to specify wierd obscure values for it.

And high performance event timers.  A kernel can have more than one time 
source these days...

Rob
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