From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Tue, 18 May 2010 22:54:18 +0000 (-0700)
Subject: ipv6: Use state_lock to protect ifa state
X-Git-Tag: v2.6.35-rc1~473^2~11
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4c5ff6a6fe794f102479db998c69054319279e3c;p=pandora-kernel.git

ipv6: Use state_lock to protect ifa state

This patch makes use of the new state_lock to synchronise between
updates to the ifa state.  This fixes the issue where a remotely
triggered address deletion (through DAD failure) coincides with a
local administrative address deletion, causing certain actions to
be performed twice incorrectly.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
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