From mboxrd@z Thu Jan 1 00:00:00 1970 Date: Fri, 17 Mar 2006 17:23:09 +0900 From: Yasunori Goto Subject: [PATCH: 017/017]Memory hotplug for new nodes v.4.(arch_register_node() for ia64) Message-Id: <20060317163911.C659.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: Andrew Morton Cc: "Luck, Tony" , Andi Kleen , Linux Kernel ML , linux-ia64@vger.kernel.org, linux-mm 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. Signed-off-by: Keiichiro Tokunaga Signed-off-by: Yasunori Goto arch/ia64/kernel/topology.c | 15 +++++++++++++++ include/linux/node.h | 2 ++ 2 files changed, 17 insertions(+) Index: pgdat8/arch/ia64/kernel/topology.c =================================================================== --- pgdat8.orig/arch/ia64/kernel/topology.c 2006-03-16 16:04:54.000000000 +0900 +++ pgdat8/arch/ia64/kernel/topology.c 2006-03-16 16:06:27.000000000 +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: pgdat8/include/linux/node.h =================================================================== --- pgdat8.orig/include/linux/node.h 2006-03-16 16:04:54.000000000 +0900 +++ pgdat8/include/linux/node.h 2006-03-16 16:06:27.000000000 +0900 @@ -28,6 +28,8 @@ struct node { extern int register_node(struct node *, int, struct node *); extern void unregister_node(struct node *node); +extern int arch_register_node(int num); +extern void arch_unregister_node(int num); #define to_node(sys_device) container_of(sys_device, struct node, sysdev) -- 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