diff -Nur aufs.orig/fs/aufs/vfsub.h aufs.chng/fs/aufs/vfsub.h
--- aufs.orig/fs/aufs25/vfsub.h	2007-04-23 02:59:51.000000000 +0200
+++ aufs.chng/fs/aufs25/vfsub.h	2007-04-25 12:25:37.000000000 +0200
@@ -24,6 +24,8 @@
 #include <linux/fs.h>
 #include <asm/uaccess.h>
 
+#include "vserver.h"
+
 #ifdef __KERNEL__
 #include "wkq.h"
 
diff -Nur aufs.orig/fs/aufs/vserver.h aufs.chng/fs/aufs/vserver.h
--- aufs.orig/fs/aufs25/vserver.h	1970-01-01 01:00:00.000000000 +0100
+++ aufs.chng/fs/aufs25/vserver.h	2007-04-25 12:25:53.000000000 +0200
@@ -0,0 +1,14 @@
+#ifndef __VSERVER_H
+#define __VSERVER_H
+
+#ifdef VSERVER
+
+#define vfs_symlink(dir, dentry, symname, mode) vfs_symlink(dir, dentry, symname, mode, NULL)
+#define vfs_mknod(dir, dentry, mode, dev) vfs_mknod(dir, dentry, mode, dev, NULL)
+#define vfs_link(src_dentry, dir, dentry) vfs_link(src_dentry, dir, dentry, NULL)
+#define vfs_mkdir(dir, dentry, mode) vfs_mkdir(dir, dentry, mode, NULL)
+#define vfs_rmdir(dir, dentry) vfs_rmdir(dir, dentry, NULL)
+#define vfs_unlink(dir, dentry) vfs_unlink(dir, dentry, NULL)
+#endif
+
+#endif