[PATCH] memory hotplug : change phys_device to symbolic [2/2] foracpi

[KAMEZAWA Hiroyuki]

This is acpi part.
-Kame
===

This patch adds symbolic link from memmory sysfs device to
memory device in acpi namespace.

like this:
[kamezawa@casares ~]$ readlink /sys/devices/system/memory/memory10/phys_device
../../../../firmware/acpi/namespace/ACPI/_SB/LSB1/MEM2

Signed-Off-By: KAMEZAWA Hiroyuki <kamezawa.hiroyu@xxxxxxxxxxxxxx>

Index: linux-2.6.17-rc1-mm2/drivers/acpi/acpi_memhotplug.c
===================================================================
--- linux-2.6.17-rc1-mm2.orig/drivers/acpi/acpi_memhotplug.c	2006-04-10 18:09:39.000000000 +0900
+++ linux-2.6.17-rc1-mm2/drivers/acpi/acpi_memhotplug.c	2006-04-10 18:09:57.000000000 +0900
@@ -30,6 +30,7 @@
 #include <linux/init.h>
 #include <linux/types.h>
 #include <linux/memory_hotplug.h>
+#include <linux/memory.h>
 #include <acpi/acpi_drivers.h>
 
 #define ACPI_MEMORY_DEVICE_COMPONENT		0x08000000UL
@@ -215,6 +216,7 @@
 {
 	int result, num_enabled = 0;
 	struct acpi_memory_info *info;
+	struct acpi_device *device;
 
 	ACPI_FUNCTION_TRACE("acpi_memory_enable_device");
 
@@ -250,6 +252,15 @@
 		info->enabled = 1;
 		num_enabled++;
 	}
+	result = acpi_bus_get_device(mem_device->handle, &device);
+	if (!result) {
+		/* create symbolic link between acpi namespace <->
+		   memory sysfs */
+		list_for_each_entry(info, &mem_device->res_list, list)
+			attach_device_to_memsection(info->start_addr,
+					info->start_addr + info->length,
+						    &device->kobj);
+	}
 
 	if (!num_enabled) {
 		ACPI_ERROR((AE_INFO, "add_memory failed"));

-
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