From: Yasunori Goto <y-goto@jp.fujitsu.com>
To: Andrew Morton <akpm@osdl.org>
Cc: "Luck, Tony" <tony.luck@intel.com>, Andi Kleen <ak@suse.de>,
Linux Kernel ML <linux-kernel@vger.kernel.org>,
linux-ia64@vger.kernel.org, linux-mm <linux-mm@kvack.org>
Subject: [PATCH: 017/017]Memory hotplug for new nodes v.4.(arch_register_node() for ia64)
Date: Fri, 17 Mar 2006 17:23:09 +0900 [thread overview]
Message-ID: <20060317163911.C659.Y-GOTO@jp.fujitsu.com> (raw)
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 <tokuanga.keiich@jp.fujitsu.com>
Signed-off-by: Yasunori Goto <y-goto@jp.fujitsu.com>
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
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next reply other threads:[~2006-03-17 8:23 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-17 8:23 Yasunori Goto [this message]
2006-03-17 18:00 ` Dave Hansen
2006-03-20 9:57 ` Yasunori Goto
2006-03-20 16:39 ` Dave Hansen
2006-03-21 4:11 ` Yasunori Goto
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