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tcp: move icsk_rto init to tcp_disconnect()

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If we make sure a listener always has its icsk_rto
field set to TCP_TIMEOUT_INIT, we do not need to rewrite
this field after a new clone is created.

tcp_disconnect() is very seldom used in real applications.

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 11:23:33 -08:00 • committed by David S. Miller
parent b84235e291
commit 6a408147ea
2 changed files with 1 additions and 1 deletions
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1
net/ipv4/tcp.c
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@ -2579,6 +2579,7 @@ int tcp_disconnect(struct sock *sk, int flags)
icsk->icsk_backoff = 0;
tp->snd_cwnd = 2;
icsk->icsk_probes_out = 0;
icsk->icsk_rto = TCP_TIMEOUT_INIT;
tp->snd_ssthresh = TCP_INFINITE_SSTHRESH;
tp->snd_cwnd_cnt = 0;
tp->window_clamp = 0;

1
net/ipv4/tcp_minisocks.c
View file

@ -482,7 +482,6 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
newtp->srtt_us = 0;
newtp->mdev_us = jiffies_to_usecs(TCP_TIMEOUT_INIT);
minmax_reset(&newtp->rtt_min, tcp_jiffies32, ~0U);
newicsk->icsk_rto = TCP_TIMEOUT_INIT;
newicsk->icsk_ack.lrcvtime = tcp_jiffies32;
newtp->packets_out = 0;