From: Cong Wang <amwang@redhat.com>
Date: Thu, 17 Jan 2013 08:34:11 +0000 (+0800)
Subject: xfrm: use separated locks to protect pointers of struct xfrm_state_afinfo
X-Git-Tag: v3.9-rc1~139^2~270^2~1
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=7a9885b93bb623524468b37d04146d3422e099eb;p=pandora-kernel.git

xfrm: use separated locks to protect pointers of struct xfrm_state_afinfo

afinfo->type_map and afinfo->mode_map deserve separated locks,
they are different things.

We should just take RCU read lock to protect afinfo itself,
but not for the inner pointers.

Cc: Steffen Klassert <steffen.klassert@secunet.com>
Cc: Herbert Xu <herbert@gondor.apana.org.au>
Cc: "David S. Miller" <davem@davemloft.net>
Signed-off-by: Cong Wang <amwang@redhat.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
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