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authorIlpo Järvinen <ilpo.jarvinen@helsinki.fi>2006-08-04 16:57:42 -0700
committerDavid S. Miller <davem@sunset.davemloft.net>2006-08-04 22:59:52 -0700
commitd254bcdbf2199d9e2a52dbe4592e79ef3a456096 (patch)
tree0d8225fffdee9a229c6edeb78f3ef705c2713c27
parentc4c0ce5c57ef0ca47a4428a14de6b5c8cdf8de8a (diff)
downloadlinux-d254bcdbf2199d9e2a52dbe4592e79ef3a456096.tar.bz2
[TCP]: Fixes IW > 2 cases when TCP is application limited
Whenever a transfer is application limited, we are allowed at least initial window worth of data per window unless cwnd is previously less than that. Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi> Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--net/ipv4/tcp_input.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index 738dad9f7d49..104af5d5bcbc 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -3541,7 +3541,8 @@ void tcp_cwnd_application_limited(struct sock *sk)
if (inet_csk(sk)->icsk_ca_state == TCP_CA_Open &&
sk->sk_socket && !test_bit(SOCK_NOSPACE, &sk->sk_socket->flags)) {
/* Limited by application or receiver window. */
- u32 win_used = max(tp->snd_cwnd_used, 2U);
+ u32 init_win = tcp_init_cwnd(tp, __sk_dst_get(sk));
+ u32 win_used = max(tp->snd_cwnd_used, init_win);
if (win_used < tp->snd_cwnd) {
tp->snd_ssthresh = tcp_current_ssthresh(sk);
tp->snd_cwnd = (tp->snd_cwnd + win_used) >> 1;