--- compat-drivers-3.8-1-u/include/linux/compat-3.8.h.orig	2013-05-16 20:35:27.046386772 +0200
+++ compat-drivers-3.8-1-u/include/linux/compat-3.8.h	2013-05-16 20:35:39.219767618 +0200
@@ -24,35 +24,6 @@
 
 /* This backports:
  *
- * commit 4b20db3de8dab005b07c74161cb041db8c5ff3a7
- * Author: Thomas Hellstrom <thellstrom@vmware.com>
- * Date:   Tue Nov 6 11:31:49 2012 +0000
- *
- *	kref: Implement kref_get_unless_zero v3
- */
-/**
- * kref_get_unless_zero - Increment refcount for object unless it is zero.
- * @kref: object.
- *
- * Return non-zero if the increment succeeded. Otherwise return 0.
- *
- * This function is intended to simplify locking around refcounting for
- * objects that can be looked up from a lookup structure, and which are
- * removed from that lookup structure in the object destructor.
- * Operations on such objects require at least a read lock around
- * lookup + kref_get, and a write lock around kref_put + remove from lookup
- * structure. Furthermore, RCU implementations become extremely tricky.
- * With a lookup followed by a kref_get_unless_zero *with return value check*
- * locking in the kref_put path can be deferred to the actual removal from
- * the lookup structure and RCU lookups become trivial.
- */
-static inline int __must_check kref_get_unless_zero(struct kref *kref)
-{
-	return atomic_add_unless(&kref->refcount, 1, 0);
-}
-
-/* This backports:
- *
  * commit 83e68189745ad931c2afd45d8ee3303929233e7f
  * Author: Matt Fleming <matt.fleming@intel.com>
  * Date:   Wed Nov 14 09:42:35 2012 +0000