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tcp: move tp->rack init to tcp_disconnect()

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If we make sure all listeners have proper tp->rack value,
then a clone will also inherit proper initial value.

Note that fresh sockets init tp->rack from tcp_init_sock()

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 11:23:41 -08:00 committed by David S. Miller
parent 6cda8b7493
commit 792c4354a5
2 changed files with 6 additions and 6 deletions
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6
net/ipv4/tcp.c
View File

@ -2611,6 +2611,12 @@ int tcp_disconnect(struct sock *sk, int flags)
tp->last_oow_ack_time = 0;
/* There's a bubble in the pipe until at least the first ACK. */
tp->app_limited = ~0U;
tp->rack.mstamp = 0;
tp->rack.advanced = 0;
tp->rack.reo_wnd_steps = 1;
tp->rack.last_delivered = 0;
tp->rack.reo_wnd_persist = 0;
tp->rack.dsack_seen = 0;
/* Clean up fastopen related fields */

6
net/ipv4/tcp_minisocks.c
View File

@ -535,12 +535,6 @@ struct sock *tcp_create_openreq_child(const struct sock *sk,
newtp->fastopen_req = NULL;
newtp->fastopen_rsk = NULL;
newtp->syn_data_acked = 0;
newtp->rack.mstamp = 0;
newtp->rack.advanced = 0;
newtp->rack.reo_wnd_steps = 1;
newtp->rack.last_delivered = 0;
newtp->rack.reo_wnd_persist = 0;
newtp->rack.dsack_seen = 0;
__TCP_INC_STATS(sock_net(sk), TCP_MIB_PASSIVEOPENS);