net: add a prefetch in socket backlog processing
TCP or UDP stacks have big enough latencies that prefetching next pointer is worth it. Signed-off-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1700,6 +1700,7 @@ static void __release_sock(struct sock *sk)
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do {
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struct sk_buff *next = skb->next;
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prefetch(next);
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WARN_ON_ONCE(skb_dst_is_noref(skb));
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skb->next = NULL;
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sk_backlog_rcv(sk, skb);
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