Re: [tip:x86/uv] x86/UV: Add uvtrace support

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* Mike Travis <travis@xxxxxxx> wrote:

> > Nothing actually uses the uv_trace() methods, plus nobody actually 
> > sets uv_trace_func.
> > 
> > Whatever hack this is, it has no place in the upstream kernel. I'll 
> > queue up a revert to make this pushable in this merge window.
>
> [...]
>
> Currently the uvtrace function is a separate module built out of tree.  
> It's pretty much prototype right now so not quite ready for general use.  
> It's used mostly to debug problems that are timing and/or load sensitive 
> as it's a very low overhead trace module that includes high resolution 
> timing.
> 
> Should I do this differently, perhaps with a register function?

Out of tree code essentially does not exist as far as the upstream kernel 
is concerned - especially if it causes crappy upstream code...

So either turn it into something clean and mergable, or patch your kernel 
and hide the uglies from others.

Thanks,

	Ingo
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