Since spin_unlock_wait() is defined as equivalent to spin_lock();
spin_unlock(), the memory barrier before spin_unlock_wait() is
also not required.

Not for stable!

Signed-off-by: Manfred Spraul <manf...@colorfullife.com>
Cc: Pablo Neira Ayuso <pa...@netfilter.org>
Cc: netfilter-de...@vger.kernel.org
---
 net/netfilter/nf_conntrack_core.c | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/net/netfilter/nf_conntrack_core.c 
b/net/netfilter/nf_conntrack_core.c
index 7a3b5e6..0591a25 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -139,13 +139,7 @@ static void nf_conntrack_all_lock(void)
 
        spin_lock(&nf_conntrack_locks_all_lock);
 
-       /*
-        * Order the store of 'nf_conntrack_locks_all' against
-        * the spin_unlock_wait() loads below, such that if
-        * nf_conntrack_lock() observes 'nf_conntrack_locks_all'
-        * we must observe nf_conntrack_locks[] held:
-        */
-       smp_store_mb(nf_conntrack_locks_all, true);
+       nf_conntrack_locks_all = true;
 
        for (i = 0; i < CONNTRACK_LOCKS; i++) {
                spin_unlock_wait(&nf_conntrack_locks[i]);
-- 
2.7.4

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