From: Eric Dumazet <edumazet@google.com>
Date: Mon, 16 Jul 2012 01:41:36 +0000 (+0000)
Subject: tcp: add OFO snmp counters
X-Git-Tag: v3.6-rc1~125^2~176
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=a6df1ae9383697c4eb1365176002f154982325ad;p=pandora-kernel.git

tcp: add OFO snmp counters

Add three SNMP TCP counters, to better track TCP behavior
at global stage (netstat -s), when packets are received
Out Of Order (OFO)

TCPOFOQueue : Number of packets queued in OFO queue

TCPOFODrop  : Number of packets meant to be queued in OFO
              but dropped because socket rcvbuf limit hit.

TCPOFOMerge : Number of packets in OFO that were merged with
              other packets.

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