[TCP]: Saner thash_entries default with much memory.

[linux-2.6] / net / ipv4 / tcp_illinois.c

diff --git a/net/ipv4/tcp_illinois.c b/net/ipv4/tcp_illinois.c
index cc5de6f..64f1cba 100644 (file)
--- a/net/ipv4/tcp_illinois.c
+++ b/net/ipv4/tcp_illinois.c
@@ -83,18 +83,16 @@ static void tcp_illinois_init(struct sock *sk)
 }
 
 /* Measure RTT for each ack. */
-static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, ktime_t last)
+static void tcp_illinois_acked(struct sock *sk, u32 pkts_acked, s32 rtt)
 {
        struct illinois *ca = inet_csk_ca(sk);
-       u32 rtt;
 
        ca->acked = pkts_acked;
 
-       if (ktime_equal(last, net_invalid_timestamp()))
+       /* dup ack, no rtt sample */
+       if (rtt < 0)
                return;
 
-       rtt = ktime_to_us(net_timedelta(last));
-
        /* ignore bogus values, this prevents wraparound in alpha math */
        if (rtt > RTT_MAX)
                rtt = RTT_MAX;