1 files changed, 24 insertions, 15 deletions

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index 52b8879e7d20..648b5c54bb32 100644
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -1015,7 +1015,7 @@ new_segment:
 		skb_frag_size_add(&skb_shinfo(skb)->frags[i - 1], copy);
 	} else {
 		get_page(page);
-		skb_fill_page_desc(skb, i, page, offset, copy);
+		skb_fill_page_desc_noacc(skb, i, page, offset, copy);
 	}
 
 	if (!(flags & MSG_NO_SHARED_FRAGS))
@@ -1162,9 +1162,8 @@ void tcp_free_fastopen_req(struct tcp_sock *tp)
 	}
 }
 
-static int tcp_sendmsg_fastopen(struct sock *sk, struct msghdr *msg,
-				int *copied, size_t size,
-				struct ubuf_info *uarg)
+int tcp_sendmsg_fastopen(struct sock *sk, struct msghdr *msg, int *copied,
+			 size_t size, struct ubuf_info *uarg)
 {
 	struct tcp_sock *tp = tcp_sk(sk);
 	struct inet_sock *inet = inet_sk(sk);
@@ -1239,7 +1238,7 @@ int tcp_sendmsg_locked(struct sock *sk, struct msghdr *msg, size_t size)
 			}
 			zc = sk->sk_route_caps & NETIF_F_SG;
 			if (!zc)
-				uarg->zerocopy = 0;
+				uarg_to_msgzc(uarg)->zerocopy = 0;
 		}
 	}
 
@@ -1761,19 +1760,28 @@ int tcp_read_skb(struct sock *sk, skb_read_actor_t recv_actor)
 	if (sk->sk_state == TCP_LISTEN)
 		return -ENOTCONN;
 
-	skb = tcp_recv_skb(sk, seq, &offset);
-	if (!skb)
-		return 0;
+	while ((skb = tcp_recv_skb(sk, seq, &offset)) != NULL) {
+		u8 tcp_flags;
+		int used;
 
-	__skb_unlink(skb, &sk->sk_receive_queue);
-	WARN_ON(!skb_set_owner_sk_safe(skb, sk));
-	copied = recv_actor(sk, skb);
-	if (copied >= 0) {
-		seq += copied;
-		if (TCP_SKB_CB(skb)->tcp_flags & TCPHDR_FIN)
+		__skb_unlink(skb, &sk->sk_receive_queue);
+		WARN_ON_ONCE(!skb_set_owner_sk_safe(skb, sk));
+		tcp_flags = TCP_SKB_CB(skb)->tcp_flags;
+		used = recv_actor(sk, skb);
+		consume_skb(skb);
+		if (used < 0) {
+			if (!copied)
+				copied = used;
+			break;
+		}
+		seq += used;
+		copied += used;
+
+		if (tcp_flags & TCPHDR_FIN) {
 			++seq;
+			break;
+		}
 	}
-	consume_skb(skb);
 	WRITE_ONCE(tp->copied_seq, seq);
 
 	tcp_rcv_space_adjust(sk);
@@ -4790,6 +4798,7 @@ void __init tcp_init(void)
 		INIT_HLIST_HEAD(&tcp_hashinfo.bhash2[i].chain);
 	}
 
+	tcp_hashinfo.pernet = false;
 
 	cnt = tcp_hashinfo.ehash_mask + 1;
 	sysctl_tcp_max_orphans = cnt / 2;