tcp: add tcpi_min_rtt and tcpi_notsent_bytes to tcp_info

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tcpi_min_rtt reports the minimal rtt observed by TCP stack for the flow,
in usec unit. Might be ~0U if not yet known.

tcpi_notsent_bytes reports the amount of bytes in the write queue that
were not yet sent.

This is done in a single patch to not add a temporary 32bit padding hole
in tcp_info.

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Eric Dumazet 2016-02-11 22:02:53 -08:00 • committed by David S. Miller

parent 4cba259f19

commit cd9b266095

2 changed files with 9 additions and 0 deletions

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include/uapi/linux/tcp.h

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