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ipv6: remove useless spin_lock/spin_unlock
authorDuan Jiong <duanj.fnst@cn.fujitsu.com>
Wed, 3 Dec 2014 02:29:40 +0000 (10:29 +0800)
committerDavid S. Miller <davem@davemloft.net>
Tue, 9 Dec 2014 18:18:09 +0000 (13:18 -0500)
xchg is atomic, so there is no necessary to use spin_lock/spin_unlock
to protect it. At last, remove the redundant
opt = xchg(&inet6_sk(sk)->opt, opt); statement.

Signed-off-by: Duan Jiong <duanj.fnst@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/ipv6/ipv6_sockglue.c patch | blob | history

diff --cc net/ipv6/ipv6_sockglue.c
Simple merge
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