diff --git a/include/linux/types.h b/include/linux/types.h
index 05030f608be3..71e55c06c963 100644
--- a/include/linux/types.h
+++ b/include/linux/types.h
@@ -114,8 +114,9 @@ typedef u64			u_int64_t;
 typedef s64			int64_t;
 #endif
 
-/* this is a special 64bit data type that is 8-byte aligned */
+/* These are the special 64-bit data types that are 8-byte aligned */
 #define aligned_u64		__aligned_u64
+#define aligned_s64		__aligned_s64
 #define aligned_be64		__aligned_be64
 #define aligned_le64		__aligned_le64
 
diff --git a/include/uapi/linux/types.h b/include/uapi/linux/types.h
index 2fce8b6876e9..cf5f4617ba5a 100644
--- a/include/uapi/linux/types.h
+++ b/include/uapi/linux/types.h
@@ -46,6 +46,7 @@ typedef __u32 __bitwise __wsum;
  * No conversions are necessary between 32-bit user-space and a 64-bit kernel.
  */
 #define __aligned_u64 __u64 __attribute__((aligned(8)))
+#define __aligned_s64 __s64 __attribute__((aligned(8)))
 #define __aligned_be64 __be64 __attribute__((aligned(8)))
 #define __aligned_le64 __le64 __attribute__((aligned(8)))