From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752968Ab1EIMjK (ORCPT ); Mon, 9 May 2011 08:39:10 -0400 Received: from www.linutronix.de ([62.245.132.108]:46942 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752680Ab1EIMjJ (ORCPT ); Mon, 9 May 2011 08:39:09 -0400 Date: Mon, 9 May 2011 14:39:04 +0200 (CEST) From: Thomas Gleixner To: Konrad Rzeszutek Wilk cc: "Tian, Kevin" , "linux-kernel@vger.kernel.org" , "mingo@redhat.com" , "hpa@zytor.com" , Ian Campbell , "JBeulich@novell.com" , "xen-devel@lists.xensource.com" Subject: Re: [PATCH v2 1/2] x86: skip migrating IRQF_PER_CPU irq in fixup_irqs In-Reply-To: <20110506135828.GC5500@dumpdata.com> Message-ID: References: <625BA99ED14B2D499DC4E29D8138F1505C8ED7F7E2@shsmsx502.ccr.corp.intel.com> <20110506135828.GC5500@dumpdata.com> User-Agent: Alpine 2.02 (LFD 1266 2009-07-14) MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 6 May 2011, Konrad Rzeszutek Wilk wrote: > On Fri, May 06, 2011 at 02:43:36PM +0800, Tian, Kevin wrote: > > because Xen event chip silently fails the set_affinity ops, and > > logically IRQF_PER_CPU should be recognized here. > > OK, so what if the set_affinity ops was implemented? An interrupt chip which has a set_affinity op should not mark something per cpu, which implies that the irq CANNOT be moved. Thanks, tglx