===== include/net/dst.h 1.24 vs edited =====
--- 1.24/include/net/dst.h	2004-10-26 09:10:25 +10:00
+++ edited/include/net/dst.h	2005-02-04 18:24:46 +11:00
@@ -147,6 +147,7 @@
 {
 	if (dst) {
 		WARN_ON(atomic_read(&dst->__refcnt) < 1);
+		smp_mb__before_atomic_dec();
 		atomic_dec(&dst->__refcnt);
 	}
 }
===== net/core/dst.c 1.25 vs edited =====
--- 1.25/net/core/dst.c	2005-01-14 15:41:04 +11:00
+++ edited/net/core/dst.c	2005-02-04 18:26:06 +11:00
@@ -169,6 +169,8 @@
 	struct neighbour *neigh;
 	struct hh_cache *hh;
 
+	smp_rmb();
+
 again:
 	neigh = dst->neighbour;
 	hh = dst->hh;