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Konstantin Khlebnikov authored
Average RTT could become zero. This happened in real life at least twice. This patch treats zero as 1us. Signed-off-by: Konstantin Khlebnikov <khlebnikov@yandex-team.ru> Acked-by: Lawrence Brakmo <Brakmo@fb.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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