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[TCP]: Make invariant check complain about invalid sacked_out

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Earlier resolution for NewReno's sacked_out should now keep
it small enough for this to become invariant-like check.

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 2007-12-31 04:43:32 -08:00 committed by David S. Miller
parent 61f1ab41b8
commit 3ccd3130b3
1 changed files with 1 additions and 4 deletions
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5
net/ipv4/tcp_input.c
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@ -2504,11 +2504,8 @@ tcp_fastretrans_alert(struct sock *sk, int pkts_acked, int flag)
(tcp_fackets_out(tp) > tp->reordering));
int fast_rexmit = 0;
/* Some technical things:
* 1. Reno does not count dupacks (sacked_out) automatically. */
if (!tp->packets_out)
if (WARN_ON(!tp->packets_out && tp->sacked_out))
tp->sacked_out = 0;
if (WARN_ON(!tp->sacked_out && tp->fackets_out))
tp->fackets_out = 0;