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tcp: add send queue size stat in SCM_TIMESTAMPING_OPT_STATS

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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>
This commit is contained in:
Priyaranjan Jha
2018-03-04 10:38:35 -08:00
committed by David S. Miller
parent 200066a5bd
commit 87ecc95d81
2 changed files with 4 additions and 1 deletions
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include/uapi/linux/tcp.h
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@@ -241,6 +241,7 @@ enum {
TCP_NLA_MIN_RTT, /* minimum RTT */
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 */
};