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qeth: introduce linearization fail count to stats
When skb data touches too many pages, skb_linearize() is called opportunistically in the hope that less pages will be required for a big linear buffer than for multiple fragments. This patch intoduces a separate counter in ethtool statistics structure representing _failed_ linearization attempts. Signed-off-by: Eugene Crosser <[email protected]> Signed-off-by: Ursula Braun <[email protected]> Reviewed-by: Lakhvich Dmitriy <[email protected]> Reviewed-by: Thomas Richter <[email protected]> Signed-off-by: David S. Miller <[email protected]>
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