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| author | Priyaranjan Jha <priyarjha@google.com> | 2018-03-04 10:38:35 -0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-05 10:40:48 -0500 |
| commit | 87ecc95d81d951b0984f2eb9c5c118cb68d0dce8 (patch) | |
| tree | 99b6ba9c267bbcf72242262d1888d39d7e91a391 /net/ipv4/tcp.c | |
| parent | 200066a5bdcc2d4527562ee3760d405b6ec5b5d5 (diff) | |
| download | lwn-87ecc95d81d951b0984f2eb9c5c118cb68d0dce8.tar.gz lwn-87ecc95d81d951b0984f2eb9c5c118cb68d0dce8.zip | |
tcp: add send queue size stat in SCM_TIMESTAMPING_OPT_STATS
This patch adds TCP_NLA_SENDQ_SIZE stat into SCM_TIMESTAMPING_OPT_STATS.
It reports no. of bytes present in send queue, when timestamp is
generated.
Signed-off-by: Priyaranjan Jha <priyarjha@google.com>
Signed-off-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Yuchung Cheng <ycheng@google.com>
Signed-off-by: Soheil Hassas Yeganeh <soheil@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/tcp.c')
| -rw-r--r-- | net/ipv4/tcp.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index a33539798bf6..162ba4227446 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3031,7 +3031,7 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk) u32 rate; stats = alloc_skb(7 * nla_total_size_64bit(sizeof(u64)) + - 3 * nla_total_size(sizeof(u32)) + + 4 * nla_total_size(sizeof(u32)) + 2 * nla_total_size(sizeof(u8)), GFP_ATOMIC); if (!stats) return NULL; @@ -3061,6 +3061,8 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk) nla_put_u8(stats, TCP_NLA_RECUR_RETRANS, inet_csk(sk)->icsk_retransmits); nla_put_u8(stats, TCP_NLA_DELIVERY_RATE_APP_LMT, !!tp->rate_app_limited); + + nla_put_u32(stats, TCP_NLA_SNDQ_SIZE, tp->write_seq - tp->snd_una); return stats; } |