From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [PATCH] ACPI: Unneccessary to scan the PCI bus already scanned. Date: Mon, 3 Mar 2008 11:11:51 +0100 Message-ID: <20080303101151.GH18281@elte.hu> References: <1204525186.4080.11.camel@yakui_zhao.sh.intel.com> <20080303073214.GA5934@elte.hu> <86802c440803030006m1879838awc238f07bc98ed43e@mail.gmail.com> <86802c440803030030p4ff9cec5tdb25d1cdc131d377@mail.gmail.com> <86802c440803030201i684f31c1m97fb3f1f1927d4f4@mail.gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from mx3.mail.elte.hu ([157.181.1.138]:40665 "EHLO mx3.mail.elte.hu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755571AbYCCKMI (ORCPT ); Mon, 3 Mar 2008 05:12:08 -0500 Content-Disposition: inline In-Reply-To: <86802c440803030201i684f31c1m97fb3f1f1927d4f4@mail.gmail.com> Sender: linux-acpi-owner@vger.kernel.org List-Id: linux-acpi@vger.kernel.org To: Yinghai Lu Cc: Greg KH , Muli Ben-Yehuda , Zhao Yakui , lenb@kernel.org, linux-acpi@vger.kernel.org, Linux Kernel Mailing List i also had to hand-merge the x86.git#testing patch below - could you double-check that it's needed in this form? Ingo -----------> Subject: x86/acpi: make dev_to_node return online node From: Yinghai Lu Date: Wed, 20 Feb 2008 12:41:52 -0800 some numa system (with multi HT chains) may return node without ram. aka it is not online. Try to get an online node, otherwise return -1 Signed-off-by: Yinghai Lu Signed-off-by: Ingo Molnar --- arch/x86/pci/acpi.c | 3 +++ 1 file changed, 3 insertions(+) Index: linux-x86.q/arch/x86/pci/acpi.c =================================================================== --- linux-x86.q.orig/arch/x86/pci/acpi.c +++ linux-x86.q/arch/x86/pci/acpi.c @@ -213,6 +213,9 @@ struct pci_bus * __devinit pci_acpi_scan set_mp_bus_to_node(busnum, node); else node = get_mp_bus_to_node(busnum); + + if (node != -1 && !node_online(node)) + node = -1; #endif bus = pci_find_bus(domain, busnum);