net: Use a percpu_counter for orphan_count
Instead of using one atomic_t per protocol, use a percpu_counter for "orphan_count", to reduce cache line contention on heavy duty network servers. Signed-off-by: Eric Dumazet <dada1@cosmosbay.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller
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dd24c00191
@ -49,7 +49,7 @@ extern int dccp_debug;
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extern struct inet_hashinfo dccp_hashinfo;
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extern atomic_t dccp_orphan_count;
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extern struct percpu_counter dccp_orphan_count;
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extern void dccp_time_wait(struct sock *sk, int state, int timeo);
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