From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754521AbZBIJbY (ORCPT ); Mon, 9 Feb 2009 04:31:24 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1752514AbZBIJbP (ORCPT ); Mon, 9 Feb 2009 04:31:15 -0500 Received: from mx2.mail.elte.hu ([157.181.151.9]:54086 "EHLO mx2.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752461AbZBIJbO (ORCPT ); Mon, 9 Feb 2009 04:31:14 -0500 Date: Mon, 9 Feb 2009 10:31:00 +0100 From: Ingo Molnar To: Brian Gerst Cc: Tejun Heo , linux-kernel@vger.kernel.org, Thomas Gleixner , "H. Peter Anvin" Subject: Re: [PATCH 3/3] x86: Fix abuse of per_cpu_offset Message-ID: <20090209093100.GC7930@elte.hu> References: <1234105120-19731-1-git-send-email-brgerst@gmail.com> <1234105120-19731-3-git-send-email-brgerst@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1234105120-19731-3-git-send-email-brgerst@gmail.com> User-Agent: Mutt/1.5.18 (2008-05-17) X-ELTE-VirusStatus: clean X-ELTE-SpamScore: -1.5 X-ELTE-SpamLevel: X-ELTE-SpamCheck: no X-ELTE-SpamVersion: ELTE 2.0 X-ELTE-SpamCheck-Details: score=-1.5 required=5.9 tests=BAYES_00 autolearn=no SpamAssassin version=3.2.3 -1.5 BAYES_00 BODY: Bayesian spam probability is 0 to 1% [score: 0.0000] Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org * Brian Gerst wrote: > Impact: bug fix > > Don't use per_cpu_offset() to determine if it valid to access a > per-cpu variable for a given cpu number. It is not a valid assumption > on x86-64 anymore. Use cpu_possible() instead. > > Signed-off-by: Brian Gerst > --- > arch/x86/mm/numa_64.c | 4 ++-- > 1 files changed, 2 insertions(+), 2 deletions(-) Applied to tip/core/perpcu, thanks Brian! Ingo