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atomic: provide seq_cst semantics on powerpc
author
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Thu, 22 Sep 2011 00:25:20 +0000
(20:25 -0400)
committer
Mathieu Desnoyers
<mathieu.desnoyers@efficios.com>
Thu, 22 Sep 2011 00:25:20 +0000
(20:25 -0400)
We provide sequential consistency semantic over all architectures for
cmpxchg and add_return family of primitives, but the powerpc
implementation does not match that.
Change the isync after the atomic primitives to sync, and explain the
scheme.
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
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