net: Move call_fib_rule_notifiers up in fib_nl_newrule

Move call_fib_rule_notifiers up in fib_nl_newrule to the point right
before the rule is inserted into the list. At this point there are no
more failure paths within the core rule code, so if the notifier
does not fail then the rule will be inserted into the list.

Signed-off-by: David Ahern <dsa@cumulusnetworks.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David Ahern 2018-03-27 18:21:56 -07:00 committed by David S. Miller
parent c30d9356e9
commit 9776d32537

View File

@ -631,6 +631,11 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
if (err < 0)
goto errout_free;
err = call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD, rule, ops,
extack);
if (err < 0)
goto errout_free;
list_for_each_entry(r, &ops->rules_list, list) {
if (r->pref > rule->pref)
break;
@ -667,7 +672,6 @@ int fib_nl_newrule(struct sk_buff *skb, struct nlmsghdr *nlh,
if (rule->tun_id)
ip_tunnel_need_metadata();
call_fib_rule_notifiers(net, FIB_EVENT_RULE_ADD, rule, ops, extack);
notify_rule_change(RTM_NEWRULE, rule, ops, nlh, NETLINK_CB(skb).portid);
flush_route_cache(ops);
rules_ops_put(ops);