[PATCH] early conntrack ref release.

[Rusty Russell <rusty@xxxxxxxxxxxxxxxx>]

Trivial patch from Xuan, which frees conntrack early.

Rusty.
--
Hacking time.
diff -urN -I \$.*\$ -X /tmp/kerndiff.RnRDbE --minimal 
linux-2.4.0-test13-3/net/ipv4/ip_input.c 
working-2.4.0-test13-3/net/ipv4/ip_input.c
--- linux-2.4.0-test13-3/net/ipv4/ip_input.c    Tue Dec 12 14:28:06 2000
+++ working-2.4.0-test13-3/net/ipv4/ip_input.c  Mon Dec 18 17:07:06 2000
@@ -225,6 +225,13 @@
        nf_debug_ip_local_deliver(skb);
 #endif /*CONFIG_NETFILTER_DEBUG*/
 
+#ifdef CONFIG_NETFILTER
+       /* Free reference early: we don't need it any more, and it may
+           hold ip_conntrack module loaded indefinitely. */
+       nf_conntrack_put(skb->nfct);
+       skb->nfct = NULL;
+#endif /*CONFIG_NETFILTER*/
+
         /* Point into the IP datagram, just past the header. */
         skb->h.raw = skb->nh.raw + iph->ihl*4;