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Message-ID: <1318531022.12224.13.camel@gandalf.stny.rr.com> Date: Thu, 13 Oct 2011 14:37:02 -0400 From: Steven Rostedt <rostedt@...dmis.org> To: Jeremy Fitzhardinge <jeremy@...p.org> Cc: "H. Peter Anvin" <hpa@...or.com>, "David S. Miller" <davem@...emloft.net>, David Daney <david.daney@...ium.com>, Michael Ellerman <michael@...erman.id.au>, Jan Glauber <jang@...ux.vnet.ibm.com>, Jason Baron <jbaron@...hat.com>, the arch/x86 maintainers <x86@...nel.org>, Xen Devel <xen-devel@...ts.xensource.com>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>, Peter Zijlstra <peterz@...radead.org>, Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com> Subject: Re: [PATCH RFC V4 09/10] x86/jump_label: use GENERIC_NOP5_ATOMIC instead of jmp5 +0 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@...rix.com> > >> > >> 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@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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