diff options
Diffstat (limited to 'net/ipv4/tcp_output.c')
| -rw-r--r-- | net/ipv4/tcp_output.c | 9 |
1 files changed, 3 insertions, 6 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c index c2aa4688dae6..b41176f380d7 100644 --- a/net/ipv4/tcp_output.c +++ b/net/ipv4/tcp_output.c @@ -1293,7 +1293,6 @@ static int tcp_mtu_probe(struct sock *sk) int len; int probe_size; int size_needed; - unsigned int pif; int copy; int mss_now; @@ -1326,11 +1325,9 @@ static int tcp_mtu_probe(struct sock *sk) if (after(tp->snd_nxt + size_needed, tp->snd_una + tp->snd_wnd)) return 0; - /* Do we need to wait to drain cwnd? */ - pif = tcp_packets_in_flight(tp); - if (pif + 2 > tp->snd_cwnd) { - /* With no packets in flight, don't stall. */ - if (pif == 0) + /* Do we need to wait to drain cwnd? With none in flight, don't stall */ + if (tcp_packets_in_flight(tp) + 2 > tp->snd_cwnd) { + if (!tcp_packets_in_flight(tp)) return -1; else return 0; |