diff options
| -rw-r--r-- | net/ipv4/tcp_ipv4.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c index 510f7a3c758b..87b173b563b0 100644 --- a/net/ipv4/tcp_ipv4.c +++ b/net/ipv4/tcp_ipv4.c @@ -1506,16 +1506,16 @@ bool tcp_prequeue(struct sock *sk, struct sk_buff *skb) __skb_queue_tail(&tp->ucopy.prequeue, skb); tp->ucopy.memory += skb->truesize; - if (tp->ucopy.memory > sk->sk_rcvbuf) { + if (skb_queue_len(&tp->ucopy.prequeue) >= 32 || + tp->ucopy.memory + atomic_read(&sk->sk_rmem_alloc) > sk->sk_rcvbuf) { struct sk_buff *skb1; BUG_ON(sock_owned_by_user(sk)); + __NET_ADD_STATS(sock_net(sk), LINUX_MIB_TCPPREQUEUEDROPPED, + skb_queue_len(&tp->ucopy.prequeue)); - while ((skb1 = __skb_dequeue(&tp->ucopy.prequeue)) != NULL) { + while ((skb1 = __skb_dequeue(&tp->ucopy.prequeue)) != NULL) sk_backlog_rcv(sk, skb1); - __NET_INC_STATS(sock_net(sk), - LINUX_MIB_TCPPREQUEUEDROPPED); - } tp->ucopy.memory = 0; } else if (skb_queue_len(&tp->ucopy.prequeue) == 1) { |