From: Eric Dumazet <edumazet@google.com>
Date: Sat, 29 Dec 2012 16:02:43 +0000 (+0000)
Subject: veth: reduce stat overhead
X-Git-Tag: v3.9-rc1~139^2~511
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2681128f0ced8aa4e66f221197e183cc16d244fe;p=pandora-kernel.git

veth: reduce stat overhead

veth stats are a bit bloated. There is no need to account transmit
and receive stats, since they are absolutely symmetric.

Also use a per device atomic64_t for the dropped counter, as it
should never be used in fast path.

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