From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from m7.gw.fujitsu.co.jp ([10.0.50.77]) by fgwmail5.fujitsu.co.jp (Fujitsu Gateway) with ESMTP id k28DhDUJ007399 for ; Wed, 8 Mar 2006 22:43:13 +0900 (envelope-from y-goto@jp.fujitsu.com) Received: from s2.gw.fujitsu.co.jp by m7.gw.fujitsu.co.jp (8.12.10/Fujitsu Domain Master) id k28DhDWg023680 for ; Wed, 8 Mar 2006 22:43:13 +0900 (envelope-from y-goto@jp.fujitsu.com) Received: from s2.gw.fujitsu.co.jp (s2 [127.0.0.1]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id 1EB3E4E00AD for ; Wed, 8 Mar 2006 22:43:13 +0900 (JST) Received: from ml6.s.css.fujitsu.com (ml6.s.css.fujitsu.com [10.23.4.196]) by s2.gw.fujitsu.co.jp (Postfix) with ESMTP id AC0CE4E00AA for ; Wed, 8 Mar 2006 22:43:12 +0900 (JST) Date: Wed, 08 Mar 2006 22:43:12 +0900 From: Yasunori Goto Subject: [PATCH: 017/017](RFC) Memory hotplug for new nodes v.3. (arch_register_node() for ia64) Message-Id: <20060308214141.0044.Y-GOTO@jp.fujitsu.com> MIME-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Sender: owner-linux-mm@kvack.org Return-Path: To: "Luck, Tony" , Andi Kleen , Joel Schopp , Dave Hansen Cc: linux-ia64@vger.kernel.org, Linux Kernel ML , linux-mm , Andrew Morton List-ID: This is to create sysfs file for new node. It adds arch specific functions 'arch_register_node()' and 'arch_unregister_node()' to IA64 to call the generic function 'register_node()' and 'unregister_node()' respectively. (Each arch defines like sysfs_nodes[] to describe its nodes topology. I'm not sure they can be merged as generic code.) Signed-off-by: Keiichiro Tokunaga Signed-off-by: Yasunori Goto Index: pgdat6/arch/ia64/kernel/topology.c =================================================================== --- pgdat6.orig/arch/ia64/kernel/topology.c 2006-03-06 18:25:31.000000000 +0900 +++ pgdat6/arch/ia64/kernel/topology.c 2006-03-06 18:26:33.000000000 +0900 @@ -65,6 +65,21 @@ EXPORT_SYMBOL(arch_register_cpu); EXPORT_SYMBOL(arch_unregister_cpu); #endif /*CONFIG_HOTPLUG_CPU*/ +#ifdef CONFIG_NUMA +int arch_register_node(int num) +{ + if (sysfs_nodes[num].sysdev.id == num) + return 0; + + return register_node(&sysfs_nodes[num], num, 0); +} + +void arch_unregister_node(int num) +{ + unregister_node(&sysfs_nodes[num]); + sysfs_nodes[num].sysdev.id = -1; +} +#endif static int __init topology_init(void) { Index: pgdat6/include/asm-ia64/numa.h =================================================================== --- pgdat6.orig/include/asm-ia64/numa.h 2006-03-06 18:24:01.000000000 +0900 +++ pgdat6/include/asm-ia64/numa.h 2006-03-06 18:26:33.000000000 +0900 @@ -23,6 +23,9 @@ #include +extern int arch_register_node(int num); +extern void arch_unregister_node(int num); + extern u8 cpu_to_node_map[NR_CPUS] __cacheline_aligned; extern cpumask_t node_to_cpu_mask[MAX_NUMNODES] __cacheline_aligned; -- Yasunori Goto -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org