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tcp: move retrans_out, sacked_out, tlp_high_seq, last_oow_ack_time init to tcp_disconnect()

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If we make sure all listeners have these fields cleared, then a clone
will also inherit zero values.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2019-01-17 11:23:39 -08:00 committed by David S. Miller
parent 5d83676462
commit 5c701549c9
2 changed files with 4 additions and 4 deletions
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4
net/ipv4/tcp.c
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@ -2605,6 +2605,10 @@ int tcp_disconnect(struct sock *sk, int flags)
tp->duplicate_sack[0].end_seq = 0;
tp->dsack_dups = 0;
tp->reord_seen = 0;
tp->retrans_out = 0;
tp->sacked_out = 0;
tp->tlp_high_seq = 0;
tp->last_oow_ack_time = 0;
/* Clean up fastopen related fields */
tcp_free_fastopen_req(tp);

4
net/ipv4/tcp_minisocks.c
View file

@ -482,12 +482,8 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
minmax_reset(&newtp->rtt_min, tcp_jiffies32, ~0U);
newicsk->icsk_ack.lrcvtime = tcp_jiffies32;
newtp->retrans_out = 0;
newtp->sacked_out = 0;
newtp->tlp_high_seq = 0;
newtp->lsndtime = tcp_jiffies32;
newsk->sk_txhash = treq->txhash;
newtp->last_oow_ack_time = 0;
newtp->total_retrans = req->num_retrans;
/* There's a bubble in the pipe until at least the first ACK. */