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net namespace can create up to 64K tcp and dccp ports and force kernel to allocate up to several megabytes of memory per netns for inet_bind_bucket objects. It makes sense to account for them to restrict the host's memory consumption from inside the memcg-limited container. Signed-off-by: Vasily Averin <vvs@virtuozzo.com> Signed-off-by: David S. Miller <davem@davemloft.net>