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BPF_F_NO_COMMON_LRU
flag for BPF_MAP_CREATE command. Instead of having one common LRU list in
the BPF_MAP_TYPE_LRU_[PERCPU_]HASH map, use a percpu LRU list which can
scale and perform better. Note, the LRU nodes (including free nodes) cannot
be moved across different LRU lists.