Re: [PATCH RFC V4 09/10] x86/jump_label: use GENERIC_NOP5_ATOMICinstead of jmp5 +0

From: Steven Rostedt
Date: Thu Oct 13 2011 - 14:37:10 EST


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


--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/