Re: [PATCH net] tcp: initialize passive-side sk_pacing_rate after 3WHS

[David Miller <davem@davemloft.net>]

From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 21 Oct 2013 13:36:34 -0700

> On Mon, 2013-10-21 at 15:40 -0400, Neal Cardwell wrote:
>> For passive TCP connections, upon receiving the ACK that completes the
>> 3WHS, make sure we set our pacing rate after we get our first RTT
>> sample.
> 
>> Signed-off-by: Neal Cardwell <ncardwell@google.com>
>> Cc: Eric Dumazet <edumazet@google.com>
>> Cc: Yuchung Cheng <ycheng@google.com>
>> ---
>>  net/ipv4/tcp_input.c | 2 ++
>>  1 file changed, 2 insertions(+)
>> 
>> diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
>> index 53974c7..a16b01b 100644
>> --- a/net/ipv4/tcp_input.c
>> +++ b/net/ipv4/tcp_input.c
>> @@ -5712,6 +5712,8 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
>>  		} else
>>  			tcp_init_metrics(sk);
>>  
>> +		tcp_update_pacing_rate(sk);
>> +
>>  		/* Prevent spurious tcp_cwnd_restart() on first data packet */
>>  		tp->lsndtime = tcp_time_stamp;
>>  
> 
> Seems good to me, thanks !
> 
> Acked-by: Eric Dumazet <edumazet@google.com>

Applied, thanks everyone.