From: http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/163a3807cb1f
# HG changeset 735+738 patch
# User Keir Fraser <keir.fraser@citrix.com>
# Date 1227525200 0
# Node ID 163a3807cb1fb4f35304a99c63f4deac322df2da
# Parent  412b24a36929b7cbedc793b4aad06b334bea021b
Subject: linux: remove sysfs files during balloon module exit
Patch-mainline: obsolete

Relevant when building pv drivers.

Also adjust some section attributes of the sysfs code.

Signed-off-by: Jan Beulich <jbeulich@novell.com>

From: http://xenbits.xensource.com/linux-2.6.18-xen.hg?rev/bf8b1ee634e2
balloon: Fix the build by including <linux/init.h>

Signed-off-by: Keir Fraser <keir.fraser@citrix.com>

Index: head-2008-11-25/drivers/xen/balloon/balloon.c
===================================================================
--- head-2008-11-25.orig/drivers/xen/balloon/balloon.c	2008-07-21 11:00:33.000000000 +0200
+++ head-2008-11-25/drivers/xen/balloon/balloon.c	2008-11-25 13:31:07.000000000 +0100
@@ -577,8 +577,8 @@ subsys_initcall(balloon_init);
 
 static void __exit balloon_exit(void)
 {
-    /* XXX - release balloon here */
-    return; 
+	balloon_sysfs_exit();
+	/* XXX - release balloon here */
 }
 
 module_exit(balloon_exit); 
Index: head-2008-11-25/drivers/xen/balloon/sysfs.c
===================================================================
--- head-2008-11-25.orig/drivers/xen/balloon/sysfs.c	2008-04-02 12:34:02.000000000 +0200
+++ head-2008-11-25/drivers/xen/balloon/sysfs.c	2008-11-25 13:31:07.000000000 +0100
@@ -30,6 +30,7 @@
 
 #include <linux/capability.h>
 #include <linux/errno.h>
+#include <linux/init.h>
 #include <linux/stat.h>
 #include <linux/string.h>
 #include <linux/sysdev.h>
@@ -111,7 +112,7 @@ static struct sysdev_class balloon_sysde
 
 static struct sys_device balloon_sysdev;
 
-static int register_balloon(struct sys_device *sysdev)
+static int __init register_balloon(struct sys_device *sysdev)
 {
 	int i, error;
 
@@ -148,7 +149,7 @@ static int register_balloon(struct sys_d
 	return error;
 }
 
-static void unregister_balloon(struct sys_device *sysdev)
+static __exit void unregister_balloon(struct sys_device *sysdev)
 {
 	int i;
 
@@ -159,12 +160,12 @@ static void unregister_balloon(struct sy
 	sysdev_class_unregister(&balloon_sysdev_class);
 }
 
-int balloon_sysfs_init(void)
+int __init balloon_sysfs_init(void)
 {
 	return register_balloon(&balloon_sysdev);
 }
 
-void balloon_sysfs_exit(void)
+void __exit balloon_sysfs_exit(void)
 {
 	unregister_balloon(&balloon_sysdev);
 }