Merge branch 'tcp-improve-delivered-counts-in-SCM_TSTAMP_ACK'

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Yousuk Seung says:

====================
tcp: improve delivered counts in SCM_TSTAMP_ACK

Currently delivered and delivered_ce in OPT_STATS of SCM_TSTAMP_ACK do
not fully reflect the current ack being timestamped. Also they are not
in sync as the delivered count includes packets being sacked and some of
cumulatively acked but delivered_ce includes none.

This patch series updates tp->delivered and tp->delivered_ce together to
keep them in sync. It also moves generating SCM_TSTAMP_ACK to later in
tcp_clean_rtx_queue() to reflect packets being cumulatively acked up
until the current skb for sack-enabled connections.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

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This commit is contained in:

David S. Miller 2020-06-27 17:41:27 -07:00

parent b08866f42a 082d4fa980

commit 491f14db45

1 changed files with 39 additions and 20 deletions

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net/ipv4/tcp_input.c

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