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rculfhash: Relax atomicity guarantees required by removal operation
authorMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 19 Dec 2011 21:45:51 +0000 (16:45 -0500)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Tue, 20 Dec 2011 15:43:07 +0000 (10:43 -0500)
The atomicity guarantees for the removal operation do not need to be as
strict as a cmpxchg. Use a uatomic_set followed by a xchg on a newly
introduced "REMOVAL_OWNER_FLAG" to perform removal.

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

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