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tcp: remove ack_time from struct tcp_sacktag_state

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It is no longer needed, everything uses tp->tcp_mstamp instead.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric Dumazet 2017-04-25 10:15:40 -07:00 committed by David S. Miller
parent 7e0ca8a4c1
commit a6db50b81e
1 changed files with 0 additions and 4 deletions
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4
net/ipv4/tcp_input.c
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@ -1131,7 +1131,6 @@ struct tcp_sacktag_state {
*/
struct skb_mstamp first_sackt;
struct skb_mstamp last_sackt;
struct skb_mstamp ack_time; /* Timestamp when the S/ACK was received */
struct rate_sample *rate;
int flag;
};
@ -3572,8 +3571,6 @@ static int tcp_ack(struct sock *sk, const struct sk_buff *skb, int flag)
if (after(ack, tp->snd_nxt))
goto invalid_ack;
skb_mstamp_get(&sack_state.ack_time);
if (icsk->icsk_pending == ICSK_TIME_LOSS_PROBE)
tcp_rearm_rto(sk);
@ -3684,7 +3681,6 @@ old_ack:
* If data was DSACKed, see if we can undo a cwnd reduction.
*/
if (TCP_SKB_CB(skb)->sacked) {
skb_mstamp_get(&sack_state.ack_time);
flag |= tcp_sacktag_write_queue(sk, skb, prior_snd_una,
&sack_state);
tcp_fastretrans_alert(sk, acked, is_dupack, &flag, &rexmit);