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audit: remove useless synchronize_net()

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netlink kernel socket is protected by refcount, not RCU.
Its rcv path is neither protected by RCU. So the synchronize_net()
is just pointless.

Cc: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Cong Wang <xiyou.wangcong@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
WANG Cong 2016-11-29 09:14:56 -08:00 committed by David S. Miller
parent 8857846819
commit 6060298272
1 changed files with 1 additions and 2 deletions
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3
kernel/audit.c
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@ -1172,9 +1172,8 @@ static void __net_exit audit_net_exit(struct net *net)
audit_sock = NULL; audit_sock = NULL;
} }
RCU_INIT_POINTER(aunet->nlsk, NULL);
synchronize_net();
netlink_kernel_release(sock); netlink_kernel_release(sock);
aunet->nlsk = NULL;
} }
static struct pernet_operations audit_net_ops __net_initdata = { static struct pernet_operations audit_net_ops __net_initdata = {