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udp: Add MIB counters for rcvbuferrors
Add MIB counters for rcvbuferrors in UDP to help diagnose problems. Signed-off-by: James M Leddy <james.leddy@redhat.com> Acked-by: Eric Dumazet <edumazet@google.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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@ -1588,8 +1588,11 @@ int udp_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
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goto csum_error;
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if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf))
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if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
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UDP_INC_STATS_BH(sock_net(sk), UDP_MIB_RCVBUFERRORS,
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is_udplite);
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goto drop;
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}
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rc = 0;
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@ -674,8 +674,11 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
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goto csum_error;
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}
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if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf))
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if (sk_rcvqueues_full(sk, skb, sk->sk_rcvbuf)) {
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UDP6_INC_STATS_BH(sock_net(sk),
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UDP_MIB_RCVBUFERRORS, is_udplite);
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goto drop;
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}
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skb_dst_drop(skb);
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@ -690,6 +693,7 @@ int udpv6_queue_rcv_skb(struct sock *sk, struct sk_buff *skb)
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bh_unlock_sock(sk);
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return rc;
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csum_error:
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UDP6_INC_STATS_BH(sock_net(sk), UDP_MIB_CSUMERRORS, is_udplite);
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drop:
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