Merge branch 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[~andy/linux] / net / ipv6 / tcp_ipv6.c

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index eeb4cb0c57c1d36c318e6f5d2dd3717459400c83..5c71501fc917d6271f72cea50cb98b9ad783f1c4 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -963,7 +963,8 @@ static int tcp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
        if (!ipv6_unicast_destination(skb))
                goto drop;
 
-       if (inet_csk_reqsk_queue_is_full(sk) && !isn) {
+       if ((sysctl_tcp_syncookies == 2 ||
+            inet_csk_reqsk_queue_is_full(sk)) && !isn) {
                want_cookie = tcp_syn_flood_action(sk, skb, "TCPv6");
                if (!want_cookie)
                        goto drop;
@@ -1237,8 +1238,6 @@ static struct sock * tcp_v6_syn_recv_sock(struct sock *sk, struct sk_buff *skb,
                newtp->advmss = tcp_sk(sk)->rx_opt.user_mss;
 
        tcp_initialize_rcv_mss(newsk);
-       tcp_synack_rtt_meas(newsk, req);
-       newtp->total_retrans = req->num_retrans;
 
        newinet->inet_daddr = newinet->inet_saddr = LOOPBACK4_IPV6;
        newinet->inet_rcv_saddr = LOOPBACK4_IPV6;
@@ -1361,8 +1360,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
                        }
                }
 
-               if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
-                       goto reset;
+               tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len);
                if (opt_skb)
                        goto ipv6_pktoptions;
                return 0;
@@ -1732,7 +1730,7 @@ static void get_openreq6(struct seq_file *seq,
 
        seq_printf(seq,
                   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-                  "%02X %08X:%08X %02X:%08lX %08X %5d %8d %d %d %pK\n",
+                  "%02X %08X:%08X %02X:%08lX %08X %5u %8d %d %d %pK\n",
                   i,
                   src->s6_addr32[0], src->s6_addr32[1],
                   src->s6_addr32[2], src->s6_addr32[3],
@@ -1783,7 +1781,7 @@ static void get_tcp6_sock(struct seq_file *seq, struct sock *sp, int i)
 
        seq_printf(seq,
                   "%4d: %08X%08X%08X%08X:%04X %08X%08X%08X%08X:%04X "
-                  "%02X %08X:%08X %02X:%08lX %08X %5d %8d %lu %d %pK %lu %lu %u %u %d\n",
+                  "%02X %08X:%08X %02X:%08lX %08X %5u %8d %lu %d %pK %lu %lu %u %u %d\n",
                   i,
                   src->s6_addr32[0], src->s6_addr32[1],
                   src->s6_addr32[2], src->s6_addr32[3], srcp,
@@ -1926,6 +1924,7 @@ struct proto tcpv6_prot = {
        .unhash                 = inet_unhash,
        .get_port               = inet_csk_get_port,
        .enter_memory_pressure  = tcp_enter_memory_pressure,
+       .stream_memory_free     = tcp_stream_memory_free,
        .sockets_allocated      = &tcp_sockets_allocated,
        .memory_allocated       = &tcp_memory_allocated,
        .memory_pressure        = &tcp_memory_pressure,