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-rw-r--r--net/ipv4/tcp_output.c9
1 files changed, 3 insertions, 6 deletions
diff --git a/net/ipv4/tcp_output.c b/net/ipv4/tcp_output.c
index c2aa4688dae..b41176f380d 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;