Index: sys/sys/socketvar.h
===================================================================
--- sys/sys/socketvar.h
+++ sys/sys/socketvar.h
@@ -344,6 +344,14 @@
 		SOCK_UNLOCK(so);					\
 } while (0)
 
+#define	sorele_unlocked(so) do {					\
+	SOCK_UNLOCK_ASSERT(so);						\
+	if (!refcount_release_if_not_last(&(so)->so_count)) {		\
+		SOCK_LOCK(so);						\
+		sorele(so);						\
+	}								\
+} while (0)
+
 /*
  * In sorwakeup() and sowwakeup(), acquire the socket buffer lock to
  * avoid a non-atomic test-and-wakeup.  However, sowakeup is