ipv6: delay fib6_sernum increase in fib6_add

only increase fib6_sernum in net namespace after add fib6_info successfully. Signed-off-by: zhang kai <[email protected]> Reviewed-by: David Ahern <[email protected]> Signed-off-by: David S. Miller <[email protected]>
kawasaki · Sep 13, 2021 · e87b505 · e87b505
1 parent f4bb62e
commit e87b505
Showing 1 changed file with 1 addition and 2 deletions.
diff --git a/net/ipv6/ip6_fib.c b/net/ipv6/ip6_fib.c
@@ -1378,7 +1378,6 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	int err = -ENOMEM;
 	int allow_create = 1;
 	int replace_required = 0;
-	int sernum = fib6_new_sernum(info->nl_net);
 
 	if (info->nlh) {
 		if (!(info->nlh->nlmsg_flags & NLM_F_CREATE))
@@ -1478,7 +1477,7 @@ int fib6_add(struct fib6_node *root, struct fib6_info *rt,
 	if (!err) {
 		if (rt->nh)
 			list_add(&rt->nh_list, &rt->nh->f6i_list);
-		__fib6_update_sernum_upto_root(rt, sernum);
+		__fib6_update_sernum_upto_root(rt, fib6_new_sernum(info->nl_net));
 		fib6_start_gc(info->nl_net, rt);
 	}