From: Eric Dumazet <eric.dumazet@gmail.com>
Date: Mon, 20 Jun 2011 05:48:34 +0000 (-0700)
Subject: veth: fix 64bit stats on 32bit arches
X-Git-Tag: v3.1-rc1~316^2~414
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=cf05c700cf6dd6f28bd95586d3040f809fd365f5;p=pandora-kernel.git

veth: fix 64bit stats on 32bit arches

Using 64bit stats on 32bit arches must use a synchronization or readers
can get transient values.

Fixes bug introduced in commit 6311cc44a2 (veth: convert to 64 bit
statistics)

Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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