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[TCP]: Keep state in Disorder also if only lost_out > 0

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This happens rather infrequently and is only possible during
FRTO. We must not allow TCP to slip to Open state because
tcp_fastretrans_alert might then not be called on it's time
when FRTO has exited. This become a problem when left_out
got removed and was replaced by just sacked_out.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@helsinki.fi>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ilpo Järvinen 2007-07-07 13:39:02 +03:00 committed by David S. Miller
parent 86426c22d2
commit d02596e329
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/tcp_input.c
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@ -2134,7 +2134,7 @@ static void tcp_try_to_open(struct sock *sk, int flag)
if (inet_csk(sk)->icsk_ca_state != TCP_CA_CWR) {
int state = TCP_CA_Open;
if (tp->sacked_out || tp->retrans_out || tp->undo_marker)
if (tcp_left_out(tp) || tp->retrans_out || tp->undo_marker)
state = TCP_CA_Disorder;
if (inet_csk(sk)->icsk_ca_state != state) {