--- kernel/nv-linux.h	2015-06-26 15:17:49.851273250 +0300
+++ kernel/nv-linux.h	2015-06-26 15:22:51.119150159 +0300
@@ -1864,4 +1864,9 @@
 #define f_dentry f_path.dentry
 #endif
 
+#if LINUX_VERSION_CODE >= KERNEL_VERSION(4, 0, 0)
+#define read_cr4 __read_cr4
+#define write_cr4 __write_cr4
+#endif
+
 #endif  /* _NV_LINUX_H_ */