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由 Florian Westphal 提交于
We need to zero out the private data area when application switches connection to different algorithm (TCP_CONGESTION setsockopt). When congestion ops get assigned at connect time everything is already zeroed because sk_alloc uses GFP_ZERO flag. But in the setsockopt case this contains whatever previous cc placed there. Signed-off-by: NFlorian Westphal <fw@strlen.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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