[TCP]: Two RFC3465 Appropriate Byte Count fixes.

1) fix slow start after retransmit timeout
2) fix case of L=2*SMSS acked bytes comparison

Signed-off-by: Daikichi Osuga <osugad@s1.nttdocomo.co.jp>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 1 deletions

diff --git a/net/ipv4/tcp_cong.c b/net/ipv4/tcp_cong.c
index 5765f9d03174..7ff2e4273a7c 100644
--- a/net/ipv4/tcp_cong.c
+++ b/net/ipv4/tcp_cong.c
@@ -189,7 +189,7 @@ void tcp_slow_start(struct tcp_sock *tp)
                         return;
 
                 /* We MAY increase by 2 if discovered delayed ack */
-                if (sysctl_tcp_abc > 1 && tp->bytes_acked > 2*tp->mss_cache) {
+                if (sysctl_tcp_abc > 1 && tp->bytes_acked >= 2*tp->mss_cache) {
                         if (tp->snd_cwnd < tp->snd_cwnd_clamp)
                                 tp->snd_cwnd++;
                 }