Patchwork [3/5,v2] Export memory_sysdev_class

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Submitter Nathan Fontenot
Date Sept. 18, 2009, 3:02 p.m.
Message ID <4AB3A102.90406@austin.ibm.com>
Download mbox | patch
Permalink /patch/33854/
State Superseded
Delegated to: Benjamin Herrenschmidt
Headers show

Comments

Nathan Fontenot - Sept. 18, 2009, 3:02 p.m.
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@austin.ibm.com>
---

Patch

Index: powerpc/drivers/base/memory.c
===================================================================
--- powerpc.orig/drivers/base/memory.c	2009-09-15 14:52:12.000000000 -0500
+++ powerpc/drivers/base/memory.c	2009-09-15 14:53:32.000000000 -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	2009-09-15 14:52:12.000000000 -0500
+++ powerpc/include/linux/memory_hotplug.h	2009-09-15 14:53:32.000000000 -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.