tcp: add tcp_min_snd_mss sysctl

[pandora-kernel.git] / net / ipv4 / tcp_cubic.c

diff --git a/net/ipv4/tcp_cubic.c b/net/ipv4/tcp_cubic.c
index b9d22e6..ed3d6d4 100644 (file)
--- a/net/ipv4/tcp_cubic.c
+++ b/net/ipv4/tcp_cubic.c
@@ -406,7 +406,7 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us)
                ratio -= ca->delayed_ack >> ACK_RATIO_SHIFT;
                ratio += cnt;
 
-               ca->delayed_ack = min(ratio, ACK_RATIO_LIMIT);
+               ca->delayed_ack = clamp(ratio, 1U, ACK_RATIO_LIMIT);
        }
 
        /* Some calls are for duplicates without timetamps */
@@ -414,7 +414,7 @@ static void bictcp_acked(struct sock *sk, u32 cnt, s32 rtt_us)
                return;
 
        /* Discard delay samples right after fast recovery */
-       if ((s32)(tcp_time_stamp - ca->epoch_start) < HZ)
+       if (ca->epoch_start && (s32)(tcp_time_stamp - ca->epoch_start) < HZ)
                return;
 
        delay = (rtt_us << 3) / USEC_PER_MSEC;