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Revert "ipv4: tcp: dont cache unconfirmed intput dst"

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This reverts commit c074da2810.

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>
This commit is contained in:
David S. Miller 2012-06-27 17:05:06 -07:00
parent e440cf2ca0
commit c10237e077
9 changed files with 15 additions and 20 deletions
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2
include/net/protocol.h
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@ -37,7 +37,7 @@
/* This is used to register protocols. */
struct net_protocol {
int (*early_demux)(struct sk_buff *skb, bool *nocache);
int (*early_demux)(struct sk_buff *skb);
int (*handler)(struct sk_buff *skb);
void (*err_handler)(struct sk_buff *skb, u32 info);
int (*gso_send_check)(struct sk_buff *skb);