On Fri, Jun 16, 2000 at 10:20:58PM +0200, Tomasz Motylewski wrote:
> On Thu, 15 Jun 2000, Paolo Mantegazza wrote:
>
> > That's why you have to tell your real time scheduler that also Linux is
> > using the FPU. In fact the real time task swithching is optimized in
> > such a way to avoid saving/restoring the FPU if only one real time task
> > is using it.
>
> Ah, I did not think about this possibility. But how to do it? I mean, I am in
> init_module, and I want to use FP in it. What should I call?
Can anyone describe a case where it is a good idea to use FP in an init module?
Linux assumes that you do not use FP in kernel space. If your RT scheduler can
solve this problem for you, it must know the difference between Linux kernel and
user processes and this is, in my modest opinion, a bad thing for the RT scheduler
to know.
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