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urcu-wait: Fix wait state load/store
authorOlivier Dion <odion@efficios.com>
Thu, 30 Mar 2023 20:09:50 +0000 (16:09 -0400)
committerMathieu Desnoyers <mathieu.desnoyers@efficios.com>
Mon, 14 Aug 2023 19:39:11 +0000 (15:39 -0400)
The state of a wait node must be accessed atomically. Also, the action
of busy loading until the teardown state is seen must follow a
CMM_ACQUIRE semantic while storing the teardown must follow a
CMM_RELEASE semantic.

Change-Id: I9cd9cf4cd9ab2081551d7f33c0b1c23c3cf3942f
Co-authored-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Olivier Dion <odion@efficios.com>
Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>

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