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Cleanup: remove cmm_wmb() from rcu_xchg_pointer and rcu_cmpxchg_pointer
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 5 Dec 2016 14:39:16 +0000 (09:39 -0500)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 5 Dec 2016 14:42:14 +0000 (09:42 -0500)
Both rcu_xchg_pointer() and rcu_cmpxchg_pointer() imply both release and
acquire barriers. Therefore, the extra cmm_wmb() is redundant and can be
removed.

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

No differences found
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