[PATCH 3/5 v4] Export memory_sysdev_class

[Nathan Fontenot]

Export the memory_sysdev_class structure.  This is needed so we can create
a 'release' file in sysfs in addition to the existing 'probe' file in
order to support DLPAR removal of memory on the powerpc/pseries platform.
The new 'release' file will be powerpc/pseries only.

Signed-off-by: Nathan Fontenot <nfont at austin.ibm.com>
---

Index: powerpc/drivers/base/memory.c
===================================================================
--- powerpc.orig/drivers/base/memory.c	2009-10-19 11:56:51.000000000 -0500
+++ powerpc/drivers/base/memory.c	2009-10-19 11:59:36.000000000 -0500
@@ -28,9 +28,10 @@

#define MEMORY_CLASS_NAME	"memory"

-static struct sysdev_class memory_sysdev_class = {
+struct sysdev_class memory_sysdev_class = {
	.name = MEMORY_CLASS_NAME,
};
+EXPORT_SYMBOL(memory_sysdev_class);

static const char *memory_uevent_name(struct kset *kset, struct kobject *kobj)
{
Index: powerpc/include/linux/memory_hotplug.h
===================================================================
--- powerpc.orig/include/linux/memory_hotplug.h	2009-10-19 11:58:43.000000000 -0500
+++ powerpc/include/linux/memory_hotplug.h	2009-10-19 11:59:36.000000000 -0500
@@ -12,6 +12,8 @@

#ifdef CONFIG_MEMORY_HOTPLUG

+extern struct sysdev_class memory_sysdev_class;
+
/*
 * Types for free bootmem.
 * The normal smallest mapcount is -1. Here is smaller value than it.

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