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authorDavid S. Miller <davem@davemloft.net>2012-06-27 17:05:06 -0700
committerDavid S. Miller <davem@davemloft.net>2012-06-27 17:05:06 -0700
commitc10237e077cef50e925f052e49f3b4fead9d71f9 (patch)
tree5b7418f3a31165ea2e7d119782cad0745cd45792 /net/ipv4/ip_input.c
parente440cf2ca0a1b075c64016240d46c3aa9d877bbf (diff)
downloadlinux-c10237e077cef50e925f052e49f3b4fead9d71f9.tar.bz2
Revert "ipv4: tcp: dont cache unconfirmed intput dst"
This reverts commit c074da2810c118b3812f32d6754bd9ead2f169e7. This change has several unwanted side effects: 1) Sockets will cache the DST_NOCACHE route in sk->sk_rx_dst and we'll thus never create a real cached route. 2) All TCP traffic will use DST_NOCACHE and never use the routing cache at all. Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_input.c')
-rw-r--r--net/ipv4/ip_input.c5
1 files changed, 2 insertions, 3 deletions
diff --git a/net/ipv4/ip_input.c b/net/ipv4/ip_input.c
index 7be54c8dcbe2..2a39204de5bc 100644
--- a/net/ipv4/ip_input.c
+++ b/net/ipv4/ip_input.c
@@ -326,7 +326,6 @@ static int ip_rcv_finish(struct sk_buff *skb)
*/
if (skb_dst(skb) == NULL) {
int err = -ENOENT;
- bool nocache = false;
if (sysctl_ip_early_demux) {
const struct net_protocol *ipprot;
@@ -335,13 +334,13 @@ static int ip_rcv_finish(struct sk_buff *skb)
rcu_read_lock();
ipprot = rcu_dereference(inet_protos[protocol]);
if (ipprot && ipprot->early_demux)
- err = ipprot->early_demux(skb, &nocache);
+ err = ipprot->early_demux(skb);
rcu_read_unlock();
}
if (err) {
err = ip_route_input_noref(skb, iph->daddr, iph->saddr,
- iph->tos, skb->dev, nocache);
+ iph->tos, skb->dev);
if (unlikely(err)) {
if (err == -EXDEV)
NET_INC_STATS_BH(dev_net(skb->dev),