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| author | Priyaranjan Jha | 2018-03-04 19:38:36 +0100 |
|---|---|---|
| committer | David S. Miller | 2018-03-05 16:40:48 +0100 |
| commit | be631892948060f44b1ceee3132be1266932071e (patch) | |
| tree | c459cfe49974d0a1e10840457b4abcd867600403 | |
| parent | tcp: add send queue size stat in SCM_TIMESTAMPING_OPT_STATS (diff) | |
| download | kernel-qcow2-linux-be631892948060f44b1ceee3132be1266932071e.tar.gz kernel-qcow2-linux-be631892948060f44b1ceee3132be1266932071e.tar.xz kernel-qcow2-linux-be631892948060f44b1ceee3132be1266932071e.zip | |
tcp: add ca_state stat in SCM_TIMESTAMPING_OPT_STATS
This patch adds TCP_NLA_CA_STATE stat into SCM_TIMESTAMPING_OPT_STATS.
It reports ca_state of socket, 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>
| -rw-r--r-- | include/uapi/linux/tcp.h | 1 | ||||
| -rw-r--r-- | net/ipv4/tcp.c | 3 |
2 files changed, 3 insertions, 1 deletions
diff --git a/include/uapi/linux/tcp.h b/include/uapi/linux/tcp.h index 93bad2128ef6..4c0ae0faf7ca 100644 --- a/include/uapi/linux/tcp.h +++ b/include/uapi/linux/tcp.h @@ -242,6 +242,7 @@ enum { TCP_NLA_RECUR_RETRANS, /* Recurring retransmits for the current pkt */ TCP_NLA_DELIVERY_RATE_APP_LMT, /* delivery rate application limited ? */ TCP_NLA_SNDQ_SIZE, /* Data (bytes) pending in send queue */ + TCP_NLA_CA_STATE, /* ca_state of socket */ }; diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c index 162ba4227446..fb350f740f69 100644 --- a/net/ipv4/tcp.c +++ b/net/ipv4/tcp.c @@ -3032,7 +3032,7 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk) stats = alloc_skb(7 * nla_total_size_64bit(sizeof(u64)) + 4 * nla_total_size(sizeof(u32)) + - 2 * nla_total_size(sizeof(u8)), GFP_ATOMIC); + 3 * nla_total_size(sizeof(u8)), GFP_ATOMIC); if (!stats) return NULL; @@ -3063,6 +3063,7 @@ struct sk_buff *tcp_get_timestamping_opt_stats(const struct sock *sk) 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); + nla_put_u8(stats, TCP_NLA_CA_STATE, inet_csk(sk)->icsk_ca_state); return stats; } |