diff --git a/lib/isc/include/isc/atomic.h b/lib/isc/include/isc/atomic.h
index 893f5526fd..98ba15d50f 100644
--- a/lib/isc/include/isc/atomic.h
+++ b/lib/isc/include/isc/atomic.h
@@ -21,7 +21,36 @@
  * We define a few additional macros to make things easier
  */
 
-#define atomic_store_relaxed(o, v) atomic_store_explicit((o), \
-							 (v), \
-							 memory_order_relaxed)
-#define atomic_load_relaxed(o) atomic_load_explicit((o), memory_order_relaxed)
+/* Relaxed Memory Ordering */
+
+#define atomic_store_relaxed(o, v)					\
+	atomic_store_explicit((o), (v), memory_order_relaxed)
+#define atomic_load_relaxed(o)						\
+	atomic_load_explicit((o), memory_order_relaxed)
+#define atomic_fetch_add_relaxed(o, v)					\
+	atomic_fetch_add_explicit((o), (v), memory_order_relaxed)
+#define atomic_fetch_sub_relaxed(o, v)					\
+	atomic_fetch_sub_explicit((o), (v), memory_order_relaxed)
+#define atomic_exchange_relaxed(o, v)					\
+	atomic_exchange_explicit((o), (v), memory_order_relaxed)
+#define atomic_compare_exchange_weak_relaxed(o, e, d)			\
+	atomic_compare_exchange_weak_explicit((o), (e), (d),		\
+					      memory_order_relaxed,	\
+					      memory_order_relaxed)
+
+/* Acquire-Release Memory Ordering */
+
+#define atomic_store_release(o, v)					\
+	atomic_store_explicit((o), (v), memory_order_release)
+#define atomic_load_acquire(o)						\
+	atomic_load_explicit((o), memory_order_acquire)
+#define atomic_fetch_add_acquire(o, v)					\
+	atomic_fetch_add_explicit((o), (v), memory_order_acquire)
+#define atomic_fetch_sub_release(o, v)					\
+	atomic_fetch_sub_explicit((o), (v), memory_order_release)
+#define atomic_exchange_acq_rel(o, v)					\
+	atomic_exchange_explicit((o), (v), memory_order_acq_rel)
+#define atomic_compare_exchange_weak_acq_rel(o, e, d)			\
+	atomic_compare_exchange_weak_explicit((o), (e), (d),		\
+					      memory_order_acq_rel,	\
+					      memory_order_acquire)