diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index f5aa012..c86a3ec 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -3110,7 +3110,11 @@ tcp_newreno_partial_ack(tp, th) * Partial window deflation. Relies on fact that tp->snd_una * not updated yet. */ - tp->snd_cwnd -= (th->th_ack - tp->snd_una - tp->t_maxseg); + if (tp->snd_cwnd > th->th_ack - tp->snd_una) + tp->snd_cwnd -= th->th_ack - tp->snd_una; + else + tp->snd_cwnd = 0; + tp->snd_cwnd += tp->t_maxseg; } /* |
