diff --git a/include/linux/sizes.h b/include/linux/sizes.h
index 9f234b581d..d3671d6cf2 100644
--- a/include/linux/sizes.h
+++ b/include/linux/sizes.h
@@ -44,5 +44,7 @@
 
 #define SZ_1G				0x40000000
 #define SZ_2G				0x80000000
+#define SZ_3G				0xc0000000
+#define SZ_4G				0x100000000ULL
 
 #endif /* __LINUX_SIZES_H__ */