diff options
Diffstat (limited to 'net/ipv4/route.c')
| -rw-r--r-- | net/ipv4/route.c | 15 |
1 files changed, 11 insertions, 4 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c index 2331de20ca50..94d4cd2d5ea4 100644 --- a/net/ipv4/route.c +++ b/net/ipv4/route.c @@ -1398,7 +1398,7 @@ static void ipv4_dst_destroy(struct dst_entry *dst) struct dst_metrics *p = (struct dst_metrics *)DST_METRICS_PTR(dst); struct rtable *rt = (struct rtable *) dst; - if (p != &dst_default_metrics && atomic_dec_and_test(&p->refcnt)) + if (p != &dst_default_metrics && refcount_dec_and_test(&p->refcnt)) kfree(p); if (!list_empty(&rt->rt_uncached)) { @@ -1456,7 +1456,7 @@ static void rt_set_nexthop(struct rtable *rt, __be32 daddr, dst_init_metrics(&rt->dst, fi->fib_metrics->metrics, true); if (fi->fib_metrics != &dst_default_metrics) { rt->dst._metrics |= DST_METRICS_REFCOUNTED; - atomic_inc(&fi->fib_metrics->refcnt); + refcount_inc(&fi->fib_metrics->refcnt); } #ifdef CONFIG_IP_ROUTE_CLASSID rt->dst.tclassid = nh->nh_tclassid; @@ -2236,7 +2236,7 @@ add: if (!rth) return ERR_PTR(-ENOBUFS); - rth->rt_iif = orig_oif ? : 0; + rth->rt_iif = orig_oif; if (res->table) rth->rt_table_id = res->table->tb_id; @@ -2439,6 +2439,12 @@ struct rtable *ip_route_output_key_hash_rcu(struct net *net, struct flowi4 *fl4, /* L3 master device is the loopback for that domain */ dev_out = l3mdev_master_dev_rcu(FIB_RES_DEV(*res)) ? : net->loopback_dev; + + /* make sure orig_oif points to fib result device even + * though packet rx/tx happens over loopback or l3mdev + */ + orig_oif = FIB_RES_OIF(*res); + fl4->flowi4_oif = dev_out->ifindex; flags |= RTCF_LOCAL; goto make_route; @@ -3075,7 +3081,8 @@ int __init ip_rt_init(void) xfrm_init(); xfrm4_init(); #endif - rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL, NULL); + rtnl_register(PF_INET, RTM_GETROUTE, inet_rtm_getroute, NULL, + RTNL_FLAG_DOIT_UNLOCKED); #ifdef CONFIG_SYSCTL register_pernet_subsys(&sysctl_route_ops); |