diff options
| author | Yousuk Seung <ysseung@google.com> | 2020-07-30 15:44:40 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2020-07-31 17:00:44 -0700 |
| commit | 48040793fa6003d211f021c6ad273477bcd90d91 (patch) | |
| tree | 7a37d2d4390b9aa54bc87465b94ab358b4dedfcd /net/core | |
| parent | c6886957d2d959d5217994cd08d59c816fc23e70 (diff) | |
| download | linux-48040793fa6003d211f021c6ad273477bcd90d91.tar.bz2 | |
tcp: add earliest departure time to SCM_TIMESTAMPING_OPT_STATS
This change adds TCP_NLA_EDT to SCM_TIMESTAMPING_OPT_STATS that reports
the earliest departure time(EDT) of the timestamped skb. By tracking EDT
values of the skb from different timestamps, we can observe when and how
much the value changed. This allows to measure the precise delay
injected on the sender host e.g. by a bpf-base throttler.
Signed-off-by: Yousuk Seung <ysseung@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/core')
| -rw-r--r-- | net/core/skbuff.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/net/core/skbuff.c b/net/core/skbuff.c index b8afefe6f6b6..4e2edfbe0e19 100644 --- a/net/core/skbuff.c +++ b/net/core/skbuff.c @@ -4692,7 +4692,7 @@ void __skb_tstamp_tx(struct sk_buff *orig_skb, if ((sk->sk_tsflags & SOF_TIMESTAMPING_OPT_STATS) && sk->sk_protocol == IPPROTO_TCP && sk->sk_type == SOCK_STREAM) { - skb = tcp_get_timestamping_opt_stats(sk); + skb = tcp_get_timestamping_opt_stats(sk, orig_skb); opt_stats = true; } else #endif |