Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1161131AbWHDNPO (ORCPT ); Fri, 4 Aug 2006 09:15:14 -0400 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1161114AbWHDNOf (ORCPT ); Fri, 4 Aug 2006 09:14:35 -0400 Received: from e32.co.us.ibm.com ([32.97.110.150]:16087 "EHLO e32.co.us.ibm.com") by vger.kernel.org with ESMTP id S1030329AbWHDNOT (ORCPT ); Fri, 4 Aug 2006 09:14:19 -0400 Date: Fri, 4 Aug 2006 07:14:15 -0600 From: Keith Mannthey To: linux-kernel@vger.kernel.org Cc: akpm@osdl.org, discuss@x86-64.org, Keith Mannthey , ak@suse.de, lhms-devel@lists.sourceforge.net, kamezawa.hiroyu@jp.fujitsu.com Message-Id: <20060804131415.21401.20437.sendpatchset@localhost.localdomain> In-Reply-To: <20060804131351.21401.4877.sendpatchset@localhost.localdomain> References: <20060804131351.21401.4877.sendpatchset@localhost.localdomain> Subject: [PATCH 5/10] hot-add-mem x86_64: memory_add_physaddr_to_nid enable Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 2543 Lines: 82 From: Keith Mannthey The api for hot-add memory already has a construct for finding nodes based on an address, memory_add_physaddr_to_nid. This patch allows the fucntion to do something besides return 0. It uses the nodes_add infomation to lookup to node info for a hot add event. Signed-off-by: Keith Mannthey --- init.c | 20 +++++++------------- srat.c | 13 ++++++++++++- 2 files changed, 19 insertions(+), 14 deletions(-) diff -urN linux-2.6.17/arch/x86_64/mm/init.c current/arch/x86_64/mm/init.c --- linux-2.6.17/arch/x86_64/mm/init.c 2006-08-04 01:30:39.000000000 -0400 +++ current/arch/x86_64/mm/init.c 2006-08-04 01:24:04.000000000 -0400 @@ -517,19 +517,6 @@ #ifdef CONFIG_MEMORY_HOTPLUG /* - * XXX: memory_add_physaddr_to_nid() is to find node id from physical address - * via probe interface of sysfs. If acpi notifies hot-add event, then it - * can tell node id by searching dsdt. But, probe interface doesn't have - * node id. So, return 0 as node id at this time. - */ -#ifdef CONFIG_NUMA -int memory_add_physaddr_to_nid(u64 start) -{ - return 0; -} -#endif - -/* * Memory is added always to NORMAL zone. This means you will never get * additional DMA/DMA32 memory. */ @@ -560,6 +547,13 @@ } EXPORT_SYMBOL_GPL(remove_memory); +#ifndef CONFIG_ACPI_NUMA +int memory_add_physaddr_to_nid(u64 start) +{ + return 0; +} +#endif + #else /* CONFIG_MEMORY_HOTPLUG */ /* * Memory Hotadd without sparsemem. The mem_maps have been allocated in advance, diff -urN linux-2.6.17/arch/x86_64/mm/srat.c current/arch/x86_64/mm/srat.c --- linux-2.6.17/arch/x86_64/mm/srat.c 2006-08-04 01:31:44.000000000 -0400 +++ current/arch/x86_64/mm/srat.c 2006-08-04 01:24:04.000000000 -0400 @@ -25,7 +25,7 @@ static nodemask_t nodes_parsed __initdata; static struct bootnode nodes[MAX_NUMNODES] __initdata; -static struct bootnode nodes_add[MAX_NUMNODES] __initdata; +static struct bootnode nodes_add[MAX_NUMNODES]; static int found_add_area __initdata; int hotadd_percent __initdata = 0; @@ -457,3 +457,14 @@ } EXPORT_SYMBOL(__node_distance); + +int memory_add_physaddr_to_nid(u64 start) +{ + int i, ret = 0; + + for_each_node(i) + if (nodes_add[i].start <= start && nodes_add[i].end > start) + ret = i; + + return ret; +} - 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/