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| author |   David S. Miller <davem@davemloft.net> | 2012-06-27 17:05:06 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2012-06-27 17:05:06 -0700 |
| commit | c10237e077cef50e925f052e49f3b4fead9d71f9 (patch) | |
| tree | 5b7418f3a31165ea2e7d119782cad0745cd45792 /net/ipv4/ip_input.c | |
| parent | net: added support for 40GbE link. (diff) | |
| download | linux-dev-c10237e077cef50e925f052e49f3b4fead9d71f9.tar.xz linux-dev-c10237e077cef50e925f052e49f3b4fead9d71f9.zip | |
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 '')
| -rw-r--r-- | net/ipv4/ip_input.c | 5 |
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), |