AcoSail/kernel_optimize_test
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tcp: update reordering first before detecting loss

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tcp_mark_lost_retrans is not used when FACK is disabled. Since
tcp_update_reordering may disable FACK, it should be called first
before tcp_mark_lost_retrans.

Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Nandita Dukkipati <nanditad@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yuchung Cheng 2015-04-29 11:28:30 -07:00 committed by David S. Miller
parent 6e9250f59e
commit 9dac883544
1 changed files with 2 additions and 4 deletions
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6
net/ipv4/tcp_input.c
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@ -1820,14 +1820,12 @@ tcp_sacktag_write_queue(struct sock *sk, const struct sk_buff *ack_skb,
for (j = 0; j < used_sacks; j++)
tp->recv_sack_cache[i++] = sp[j];
tcp_mark_lost_retrans(sk);
tcp_verify_left_out(tp);
if ((state.reord < tp->fackets_out) &&
((inet_csk(sk)->icsk_ca_state != TCP_CA_Loss) || tp->undo_marker))
tcp_update_reordering(sk, tp->fackets_out - state.reord, 0);
tcp_mark_lost_retrans(sk);
tcp_verify_left_out(tp);
out:
#if FASTRETRANS_DEBUG > 0