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Klaus Aehlig authored
In order to have update requests repeatable, always accept requests that do not require any change to the state. Note that this is not implied by the current definition, as the request might ask for two locks at different level, and thus the repetition would violate lock order. Signed-off-by: Klaus Aehlig <aehlig@google.com> Reviewed-by: Petr Pudlak <pudlak@google.com>
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