From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754454Ab0KHOSj (ORCPT ); Mon, 8 Nov 2010 09:18:39 -0500 Received: from hrndva-omtalb.mail.rr.com ([71.74.56.124]:55541 "EHLO hrndva-omtalb.mail.rr.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752926Ab0KHOSi (ORCPT ); Mon, 8 Nov 2010 09:18:38 -0500 X-Authority-Analysis: v=1.1 cv=kXGwZUU/u1JTMRv8Axk4W0omja+vfTT+sGlOkodD8F8= c=1 sm=0 a=1qZAFK7FH7YA:10 a=Q9fys5e9bTEA:10 a=OPBmh+XkhLl+Enan7BmTLg==:17 a=Y_2azpK4U78DZyq78gIA:9 a=J47mCEbZsYno2K0CdizqnXRMLXcA:4 a=PUjeQqilurYA:10 a=OPBmh+XkhLl+Enan7BmTLg==:117 X-Cloudmark-Score: 0 X-Originating-IP: 67.242.120.143 Subject: Re: [PATCH] powerpc: Add jump label support From: Steven Rostedt To: Michael Ellerman Cc: linuxppc-dev@ozlabs.org, Kumar Gala , "David S.Miller" , jbaron@redhat.com, linux-kernel@vger.kernel.org, Anton Blanchard In-Reply-To: <45fbc3cd7f6ce404d1e25bf01695fb629d86189d.1289189560.git.michael@ellerman.id.au> References: <45fbc3cd7f6ce404d1e25bf01695fb629d86189d.1289189560.git.michael@ellerman.id.au> Content-Type: text/plain; charset="ISO-8859-15" Date: Mon, 08 Nov 2010 09:18:35 -0500 Message-ID: <1289225915.12418.2.camel@gandalf.stny.rr.com> Mime-Version: 1.0 X-Mailer: Evolution 2.30.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, 2010-11-08 at 15:12 +1100, Michael Ellerman wrote: > This patch adds support for the new "jump label" feature. Darn it! I wanted to port this!!! ;-) > > Built for 64 & 32 bit, tested on 64 bit. Survives a kernel build under > perf with all tracepoints enabled, and manual inspection of the patched > code looks right. But still, lightly tested, YMMV. > > Unlike x86 and sparc we just merrily patch the code with no locks etc, > as far as I know this is safe, but I'm not really sure what the x86/sparc > code is protecting against so maybe it's not. Thanks, I'll give it a test on my electra as soon as I get a gcc 4.5.1 cross compiler working. -- Steve