Re: [PATCH 17/18] 2.6.17.9 perfmon2 patch for review: modifiedx86_64 files

[Andrew Morton]

On 23 Aug 2006 12:09:25 +0200
Andi Kleen <ak@xxxxxxx> wrote:

> >  void flush_thread(void)
> > @@ -462,6 +464,8 @@ int copy_thread(int nr, unsigned long cl
> >  	asm("mov %%es,%0" : "=m" (p->thread.es));
> >  	asm("mov %%ds,%0" : "=m" (p->thread.ds));
> >  
> > +	pfm_copy_thread(p);
> > +
> 
> AFAIK there was some work in -mm* for generic notifiers for exit/copy hooks. Can those
> be used?

I dropped them.  It was nice code, but there was overhead.  I went for
nasty&&fast over nice&&slow.
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