pkt_sched: Manage qdisc list inside of root qdisc.

[karo-tx-linux.git] / net / ipv4 / tcp_output.c

diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index debf235816067cc8a268b015c9adbae851a538a1..36a19707f67f1444f90986f95473253317b18d97 100644 (file)
--- a/net/ipv4/tcp_output.c
+++ b/net/ipv4/tcp_output.c
@@ -5,8 +5,6 @@
  *
  *             Implementation of the Transmission Control Protocol(TCP).
  *
- * Version:    $Id: tcp_output.c,v 1.146 2002/02/01 22:01:04 davem Exp $
- *
  * Authors:    Ross Biro
  *             Fred N. van Kempen, <waltje@uWalt.NL.Mugnet.ORG>
  *             Mark Evans, <evansmp@uhura.aston.ac.uk>
@@ -607,7 +605,6 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
                                               md5,
                                               sk, NULL, NULL,
                                               tcp_hdr(skb),
-                                              sk->sk_protocol,
                                               skb->len);
        }
 #endif
@@ -621,7 +618,7 @@ static int tcp_transmit_skb(struct sock *sk, struct sk_buff *skb, int clone_it,
                tcp_event_data_sent(tp, skb, sk);
 
        if (after(tcb->end_seq, tp->snd_nxt) || tcb->seq == tcb->end_seq)
-               TCP_INC_STATS(TCP_MIB_OUTSEGS);
+               TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTSEGS);
 
        err = icsk->icsk_af_ops->queue_xmit(skb, 0);
        if (likely(err <= 0))
@@ -1836,7 +1833,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        struct inet_connection_sock *icsk = inet_csk(sk);
-       unsigned int cur_mss = tcp_current_mss(sk, 0);
+       unsigned int cur_mss;
        int err;
 
        /* Inconslusive MTU probe */
@@ -1858,6 +1855,11 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
                        return -ENOMEM;
        }
 
+       if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
+               return -EHOSTUNREACH; /* Routing failure or similar. */
+
+       cur_mss = tcp_current_mss(sk, 0);
+
        /* If receiver has shrunk his window, and skb is out of
         * new window, do not retransmit it. The exception is the
         * case, when window is shrunk to zero. In this case
@@ -1884,9 +1886,6 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
            (sysctl_tcp_retrans_collapse != 0))
                tcp_retrans_try_collapse(sk, skb, cur_mss);
 
-       if (inet_csk(sk)->icsk_af_ops->rebuild_header(sk))
-               return -EHOSTUNREACH; /* Routing failure or similar. */
-
        /* Some Solaris stacks overoptimize and ignore the FIN on a
         * retransmit when old data is attached.  So strip it off
         * since it is cheap to do so and saves bytes on the network.
@@ -1911,7 +1910,7 @@ int tcp_retransmit_skb(struct sock *sk, struct sk_buff *skb)
 
        if (err == 0) {
                /* Update global TCP statistics. */
-               TCP_INC_STATS(TCP_MIB_RETRANSSEGS);
+               TCP_INC_STATS(sock_net(sk), TCP_MIB_RETRANSSEGS);
 
                tp->total_retrans++;
 
@@ -1986,14 +1985,17 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
 
                        if (sacked & TCPCB_LOST) {
                                if (!(sacked & (TCPCB_SACKED_ACKED|TCPCB_SACKED_RETRANS))) {
+                                       int mib_idx;
+
                                        if (tcp_retransmit_skb(sk, skb)) {
                                                tp->retransmit_skb_hint = NULL;
                                                return;
                                        }
                                        if (icsk->icsk_ca_state != TCP_CA_Loss)
-                                               NET_INC_STATS_BH(LINUX_MIB_TCPFASTRETRANS);
+                                               mib_idx = LINUX_MIB_TCPFASTRETRANS;
                                        else
-                                               NET_INC_STATS_BH(LINUX_MIB_TCPSLOWSTARTRETRANS);
+                                               mib_idx = LINUX_MIB_TCPSLOWSTARTRETRANS;
+                                       NET_INC_STATS_BH(sock_net(sk), mib_idx);
 
                                        if (skb == tcp_write_queue_head(sk))
                                                inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,
@@ -2063,7 +2065,7 @@ void tcp_xmit_retransmit_queue(struct sock *sk)
                                                  inet_csk(sk)->icsk_rto,
                                                  TCP_RTO_MAX);
 
-               NET_INC_STATS_BH(LINUX_MIB_TCPFORWARDRETRANS);
+               NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_TCPFORWARDRETRANS);
        }
 }
 
@@ -2117,7 +2119,7 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
        /* NOTE: No TCP options attached and we never retransmit this. */
        skb = alloc_skb(MAX_TCP_HEADER, priority);
        if (!skb) {
-               NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
+               NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTFAILED);
                return;
        }
 
@@ -2128,7 +2130,9 @@ void tcp_send_active_reset(struct sock *sk, gfp_t priority)
        /* Send it off. */
        TCP_SKB_CB(skb)->when = tcp_time_stamp;
        if (tcp_transmit_skb(sk, skb, 0, priority))
-               NET_INC_STATS(LINUX_MIB_TCPABORTFAILED);
+               NET_INC_STATS(sock_net(sk), LINUX_MIB_TCPABORTFAILED);
+
+       TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTRSTS);
 }
 
 /* WARNING: This routine must only be called when we have already sent
@@ -2254,7 +2258,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
                              );
 
        th->doff = (tcp_header_size >> 2);
-       TCP_INC_STATS(TCP_MIB_OUTSEGS);
+       TCP_INC_STATS(sock_net(sk), TCP_MIB_OUTSEGS);
 
 #ifdef CONFIG_TCP_MD5SIG
        /* Okay, we have all we need - do the md5 hash if needed */
@@ -2262,7 +2266,7 @@ struct sk_buff *tcp_make_synack(struct sock *sk, struct dst_entry *dst,
                tp->af_specific->calc_md5_hash(md5_hash_location,
                                               md5,
                                               NULL, dst, req,
-                                              tcp_hdr(skb), sk->sk_protocol,
+                                              tcp_hdr(skb),
                                               skb->len);
        }
 #endif
@@ -2363,7 +2367,7 @@ int tcp_connect(struct sock *sk)
         */
        tp->snd_nxt = tp->write_seq;
        tp->pushed_seq = tp->write_seq;
-       TCP_INC_STATS(TCP_MIB_ACTIVEOPENS);
+       TCP_INC_STATS(sock_net(sk), TCP_MIB_ACTIVEOPENS);
 
        /* Timer for repeating the SYN until an answer. */
        inet_csk_reset_xmit_timer(sk, ICSK_TIME_RETRANS,