Commit e4cbb02a authored by Eric Dumazet's avatar Eric Dumazet Committed by David S. Miller
Browse files

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: default avatarEric Dumazet <edumazet@google.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 5dac94e1

net/core/sock.c

+1 −0
Original line number Diff line number Diff line
@@ -1700,6 +1700,7 @@ static void __release_sock(struct sock *sk) 
		do {

			struct sk_buff *next = skb->next;



			prefetch(next);

			WARN_ON_ONCE(skb_dst_is_noref(skb));

			skb->next = NULL;

			sk_backlog_rcv(sk, skb);