nfsd: minor write_pool_threads exit cleanup

[safe/jmp/linux-2.6] / net / ipv4 / tcp_lp.c

diff --git a/net/ipv4/tcp_lp.c b/net/ipv4/tcp_lp.c
index 649ebae..ce3c41f 100644 (file)
--- a/net/ipv4/tcp_lp.c
+++ b/net/ipv4/tcp_lp.c
@@ -31,8 +31,6 @@
  *   Hung Hing Lun, Mike <hlhung3i@gmail.com>
  * SourceForge project page:
  *   http://tcp-lp-mod.sourceforge.net/
- *
- * Version: $Id: tcp_lp.c,v 1.24 2006/09/05 20:22:53 hswong3i Exp $
  */
 
 #include <linux/module.h>
@@ -117,13 +115,12 @@ static void tcp_lp_init(struct sock *sk)
  * Will only call newReno CA when away from inference.
  * From TCP-LP's paper, this will be handled in additive increasement.
  */
-static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 rtt, u32 in_flight,
-                             int flag)
+static void tcp_lp_cong_avoid(struct sock *sk, u32 ack, u32 in_flight)
 {
        struct lp *lp = inet_csk_ca(sk);
 
        if (!(lp->flag & LP_WITHIN_INF))
-               tcp_reno_cong_avoid(sk, ack, rtt, in_flight, flag);
+               tcp_reno_cong_avoid(sk, ack, in_flight);
 }
 
 /**
@@ -164,7 +161,7 @@ static u32 tcp_lp_remote_hz_estimator(struct sock *sk)
 
  out:
        /* record time for successful remote HZ calc */
-       if (rhz > 0)
+       if ((rhz >> 6) > 0)
                lp->flag |= LP_VALID_RHZ;
        else
                lp->flag &= ~LP_VALID_RHZ;
@@ -220,7 +217,7 @@ static u32 tcp_lp_owd_calculator(struct sock *sk)
  *   3. calc smoothed OWD (SOWD).
  * Most ideas come from the original TCP-LP implementation.
  */
-static void tcp_lp_rtt_sample(struct sock *sk, u32 usrtt)
+static void tcp_lp_rtt_sample(struct sock *sk, u32 rtt)
 {
        struct lp *lp = inet_csk_ca(sk);
        s64 mowd = tcp_lp_owd_calculator(sk);
@@ -263,11 +260,14 @@ static void tcp_lp_rtt_sample(struct sock *sk, u32 usrtt)
  * newReno in increase case.
  * We work it out by following the idea from TCP-LP's paper directly
  */
-static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked)
+static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked, s32 rtt_us)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        struct lp *lp = inet_csk_ca(sk);
 
+       if (rtt_us > 0)
+               tcp_lp_rtt_sample(sk, rtt_us);
+
        /* calc inference */
        if (tcp_time_stamp > tp->rx_opt.rcv_tsecr)
                lp->inference = 3 * (tcp_time_stamp - tp->rx_opt.rcv_tsecr);
@@ -314,11 +314,11 @@ static void tcp_lp_pkts_acked(struct sock *sk, u32 num_acked)
 }
 
 static struct tcp_congestion_ops tcp_lp = {
+       .flags = TCP_CONG_RTT_STAMP,
        .init = tcp_lp_init,
        .ssthresh = tcp_reno_ssthresh,
        .cong_avoid = tcp_lp_cong_avoid,
        .min_cwnd = tcp_reno_min_cwnd,
-       .rtt_sample = tcp_lp_rtt_sample,
        .pkts_acked = tcp_lp_pkts_acked,
 
        .owner = THIS_MODULE,
@@ -327,7 +327,7 @@ static struct tcp_congestion_ops tcp_lp = {
 
 static int __init tcp_lp_register(void)
 {
-       BUG_ON(sizeof(struct lp) > ICSK_CA_PRIV_SIZE);
+       BUILD_BUG_ON(sizeof(struct lp) > ICSK_CA_PRIV_SIZE);
        return tcp_register_congestion_control(&tcp_lp);
 }