diff options
| author | Yuchung Cheng <ycheng@google.com> | 2013-07-23 01:20:45 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-07-23 02:53:42 +0200 |
| commit | 375fe02c91792917aa26d68a87ab110d1937f44e (patch) | |
| tree | 2a6c1205f6b136f7ac55f191912b386a0f3b2491 /include | |
| parent | Merge branch 'fec' (diff) | |
| download | linux-375fe02c91792917aa26d68a87ab110d1937f44e.tar.xz linux-375fe02c91792917aa26d68a87ab110d1937f44e.zip | |
tcp: consolidate SYNACK RTT sampling
The first patch consolidates SYNACK and other RTT measurement to use a
central function tcp_ack_update_rtt(). A (small) bonus is now SYNACK
RTT measurement happens after PAWS check, potentially reducing the
impact of RTO seeding on bad TCP timestamps values.
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/net/tcp.h | 9 |
1 files changed, 0 insertions, 9 deletions
diff --git a/include/net/tcp.h b/include/net/tcp.h index d1980054ec75..f9777dbede75 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -1094,15 +1094,6 @@ static inline void tcp_openreq_init(struct request_sock *req, ireq->loc_port = tcp_hdr(skb)->dest; } -/* Compute time elapsed between SYNACK and the ACK completing 3WHS */ -static inline void tcp_synack_rtt_meas(struct sock *sk, - struct request_sock *req) -{ - if (tcp_rsk(req)->snt_synack) - tcp_valid_rtt_meas(sk, - tcp_time_stamp - tcp_rsk(req)->snt_synack); -} - extern void tcp_enter_memory_pressure(struct sock *sk); static inline int keepalive_intvl_when(const struct tcp_sock *tp) |