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Diffstat (limited to 'net')
-rw-r--r--net/ipv4/route.c15
1 files changed, 10 insertions, 5 deletions
diff --git a/net/ipv4/route.c b/net/ipv4/route.c
index 705eccfb476..560acc677ce 100644
--- a/net/ipv4/route.c
+++ b/net/ipv4/route.c
@@ -2277,8 +2277,8 @@ martian_source:
goto e_inval;
}
-int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
- u8 tos, struct net_device *dev)
+int ip_route_input_common(struct sk_buff *skb, __be32 daddr, __be32 saddr,
+ u8 tos, struct net_device *dev, bool noref)
{
struct rtable * rth;
unsigned hash;
@@ -2304,10 +2304,15 @@ int ip_route_input(struct sk_buff *skb, __be32 daddr, __be32 saddr,
rth->fl.mark == skb->mark &&
net_eq(dev_net(rth->u.dst.dev), net) &&
!rt_is_expired(rth)) {
- dst_use(&rth->u.dst, jiffies);
+ if (noref) {
+ dst_use_noref(&rth->u.dst, jiffies);
+ skb_dst_set_noref(skb, &rth->u.dst);
+ } else {
+ dst_use(&rth->u.dst, jiffies);
+ skb_dst_set(skb, &rth->u.dst);
+ }
RT_CACHE_STAT_INC(in_hit);
rcu_read_unlock();
- skb_dst_set(skb, &rth->u.dst);
return 0;
}
RT_CACHE_STAT_INC(in_hlist_search);
@@ -2350,6 +2355,7 @@ skip_cache:
}
return ip_route_input_slow(skb, daddr, saddr, tos, dev);
}
+EXPORT_SYMBOL(ip_route_input_common);
static int __mkroute_output(struct rtable **result,
struct fib_result *res,
@@ -3361,5 +3367,4 @@ void __init ip_static_sysctl_init(void)
#endif
EXPORT_SYMBOL(__ip_select_ident);
-EXPORT_SYMBOL(ip_route_input);
EXPORT_SYMBOL(ip_route_output_key);