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tcp: do not pass timestamp to tcp_rack_advance() 

No longer needed, since tp->tcp_mstamp holds the information.

This is needed to remove sack_state.ack_time in a following patch.

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 10:15:38 -07:00 committed by David S. Miller
parent 88d5c65098
commit d2329f102d
3 changed files with 5 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
include/net/tcp.h
View File

@ -1855,8 +1855,7 @@ void tcp_init(void);
/* tcp_recovery.c */
extern void tcp_rack_mark_lost(struct sock *sk);
extern void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
const struct skb_mstamp *xmit_time,
const struct skb_mstamp *ack_time);
const struct skb_mstamp *xmit_time);
extern void tcp_rack_reo_timeout(struct sock *sk);
/*

6
net/ipv4/tcp_input.c
View File

@ -1214,8 +1214,7 @@ static u8 tcp_sacktag_one(struct sock *sk,
return sacked;
if (!(sacked & TCPCB_SACKED_ACKED)) {
tcp_rack_advance(tp, sacked, end_seq,
xmit_time, &state->ack_time);
tcp_rack_advance(tp, sacked, end_seq, xmit_time);
if (sacked & TCPCB_SACKED_RETRANS) {
/* If the segment is not tagged as lost,
@ -3118,8 +3117,7 @@ static int tcp_clean_rtx_queue(struct sock *sk, int prior_fackets,
tp->delivered += acked_pcount;
if (!tcp_skb_spurious_retrans(tp, skb))
tcp_rack_advance(tp, sacked, scb->end_seq,
&skb->skb_mstamp,
&sack->ack_time);
&skb->skb_mstamp);
}
if (sacked & TCPCB_LOST)
tp->lost_out -= acked_pcount;

5
net/ipv4/tcp_recovery.c
View File

@ -127,8 +127,7 @@ void tcp_rack_mark_lost(struct sock *sk)
* draft-cheng-tcpm-rack-00.txt
*/
void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
const struct skb_mstamp *xmit_time,
const struct skb_mstamp *ack_time)
const struct skb_mstamp *xmit_time)
{
u32 rtt_us;
@ -137,7 +136,7 @@ void tcp_rack_advance(struct tcp_sock *tp, u8 sacked, u32 end_seq,
end_seq, tp->rack.end_seq))
return;
rtt_us = skb_mstamp_us_delta(ack_time, xmit_time);
rtt_us = skb_mstamp_us_delta(&tp->tcp_mstamp, xmit_time);
if (sacked & TCPCB_RETRANS) {
/* If the sacked packet was retransmitted, it's ambiguous
* whether the retransmission or the original (or the prior