Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754278Ab2BVROv (ORCPT ); Wed, 22 Feb 2012 12:14:51 -0500 Received: from mx1.redhat.com ([209.132.183.28]:43556 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752255Ab2BVROr (ORCPT ); Wed, 22 Feb 2012 12:14:47 -0500 Message-ID: <4F45226B.50606@redhat.com> Date: Wed, 22 Feb 2012 09:14:19 -0800 From: Richard Henderson User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:10.0.1) Gecko/20120209 Thunderbird/10.0.1 MIME-Version: 1.0 To: Peter Zijlstra CC: Steven Rostedt , Ingo Molnar , "H. Peter Anvin" , Jason Baron , mathieu.desnoyers@efficios.com, davem@davemloft.net, ddaney.cavm@gmail.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, Linus Torvalds Subject: Re: [PATCH 00/10] jump label: introduce very_[un]likely + cleanups + docs References: <4F43F9F0.4000605@zytor.com> <20120222065016.GA16923@elte.hu> <4F44934B.2000808@zytor.com> <20120222072538.GA17291@elte.hu> <4F449ACF.3040807@zytor.com> <20120222074839.GA24890@elte.hu> <20120222080659.GA25318@elte.hu> <1329916920.25686.79.camel@gandalf.stny.rr.com> <20120222133404.GA14085@elte.hu> <1329918881.25686.92.camel@gandalf.stny.rr.com> <1329923583.24994.21.camel@twins> <1329924752.24994.25.camel@twins> In-Reply-To: <1329924752.24994.25.camel@twins> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 844 Lines: 22 On 02/22/12 07:32, Peter Zijlstra wrote: > So I clicked the link Jason provided in his 10/10 Documentation patch > and stumbled upon: > > http://gcc.gnu.org/ml/gcc-patches/2009-07/msg01558.html > > Where rth suggests that __attribute__((hot,cold)) might work on the > destination labels. Trying this my compiler (4.6.1+crap) pukes all over > me suggesting this isn't (yet) implemented. > > Richard, is something like that still on the table? It's still a possibility. I gave Jason a patch for that quite some time ago; I don't recall hearing whether it turned out to actually be useful. r~ -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/