Re: [PATCH] ftrace: use only 5 byte nops for x86

[H. Peter Anvin]

Ingo Molnar wrote:
> > > TODO: Examine the cpuid to determine the nop to use.
> > >   
> > Don't think that will help in general.  qemu claims its a Pentium II.
>
> ok. I've applied Steve's patch as it's a good bugfix. The extra paranoia 
> about faulting on 0x90 seems excessive but doesnt hurt ;-)

I think what we need to do is to test the NOPL instruction and create a 
Linux-specific CPUID bit for it.  I'll do that and submit to tip:x86/cpu.

	-hpa
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