Passive connections can inherit proper value by cloning,
if we make sure all listeners have the proper values there.
tcp_disconnect() was setting snd_cwnd to 2, which seems
quite obsolete since IW10 adoption.
Also remove an obsolete comment.
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
net/ipv4/tcp.c | 2 +-
net/ipv4/tcp_minisocks.c | 8 --------
2 files changed, 1 insertion(+), 9 deletions(-)
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index
731b1c6e88a992e51b9e303803444dc255d888fa..3f99ad92eaedb2364e339842365f553fca8922e1
100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -2578,10 +2578,10 @@ int tcp_disconnect(struct sock *sk, int flags)
if (tp->write_seq == 0)
tp->write_seq = 1;
icsk->icsk_backoff = 0;
- tp->snd_cwnd = 2;
icsk->icsk_probes_out = 0;
icsk->icsk_rto = TCP_TIMEOUT_INIT;
tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
+ tp->snd_cwnd = TCP_INIT_CWND;
tp->snd_cwnd_cnt = 0;
tp->window_clamp = 0;
tp->delivered_ce = 0;
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index
35906b44e2cfa767f760773d0321a992114fee5b..ca96e7da99b6e450a5e881e280ad84137a57409d
100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -490,14 +490,6 @@ struct sock *tcp_create_openreq_child(const struct sock
*sk,
newtp->last_oow_ack_time = 0;
newtp->total_retrans = req->num_retrans;
- /* So many TCP implementations out there (incorrectly) count the
- * initial SYN frame in their delayed-ACK and congestion control
- * algorithms that we must have the following bandaid to talk
- * efficiently to them. -DaveM
- */
- newtp->snd_cwnd = TCP_INIT_CWND;
- newtp->snd_cwnd_cnt = 0;
-
/* There's a bubble in the pipe until at least the first ACK. */
newtp->app_limited = ~0U;
--
2.20.1.321.g9e740568ce-goog
