[Xen-devel] Re: [PATCH RFC V4 09/10] x86/jump_label: use GENERIC_NOP5_ATOMIC instead of jmp5 +0

[Steven Rostedt <rostedt@xxxxxxxxxxx>]

On Thu, 2011-10-13 at 09:57 -0700, Jeremy Fitzhardinge wrote:
> On 10/13/2011 08:40 AM, H. Peter Anvin wrote:
> > On 10/12/2011 05:08 PM, Jeremy Fitzhardinge wrote:
> >> From: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
> >>
> >> GENERIC_NOP5_ATOMIC should make a better nop.
> >>
> > On 32 bits, yes.  On 64 bits you should use P6_NOP5_ATOMIC.
> 
> Something like this?
> 

No, we only care about 5byte nops here. Look at ideal_nop in
alterative.c

-- Steve



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