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| author |   Eric Dumazet <edumazet@google.com> | 2014-09-05 15:33:33 -0700 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2014-09-05 17:49:33 -0700 |
| commit | 7faee5c0d514162853a343d93e4a0b6bb8bfec21 (patch) | |
| tree | ebaba03f755dfbe9d942fbe610ce3aecd1b0fc33 /net/ipv4/tcp_timer.c | |
| parent | tcp: introduce TCP_SKB_CB(skb)->tcp_tw_isn (diff) | |
| download | linux-dev-7faee5c0d514162853a343d93e4a0b6bb8bfec21.tar.xz linux-dev-7faee5c0d514162853a343d93e4a0b6bb8bfec21.zip | |
tcp: remove TCP_SKB_CB(skb)->when
After commit 740b0f1841f6 ("tcp: switch rtt estimations to usec resolution"),
we no longer need to maintain timestamps in two different fields.
TCP_SKB_CB(skb)->when can be removed, as same information sits in skb_mstamp.stamp_jiffies
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
| -rw-r--r-- | net/ipv4/tcp_timer.c | 7 |
1 files changed, 3 insertions, 4 deletions
diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c index df90cd1ce37f..a339e7ba05a4 100644 --- a/net/ipv4/tcp_timer.c +++ b/net/ipv4/tcp_timer.c @@ -135,10 +135,9 @@ static bool retransmits_timed_out(struct sock *sk, if (!inet_csk(sk)->icsk_retransmits) return false; - if (unlikely(!tcp_sk(sk)->retrans_stamp)) - start_ts = TCP_SKB_CB(tcp_write_queue_head(sk))->when; - else - start_ts = tcp_sk(sk)->retrans_stamp; + start_ts = tcp_sk(sk)->retrans_stamp; + if (unlikely(!start_ts)) + start_ts = tcp_skb_timestamp(tcp_write_queue_head(sk)); if (likely(timeout == 0)) { linear_backoff_thresh = ilog2(TCP_RTO_MAX/rto_base); |