228 static bool vhost_sock_zcopy(struct socket *sock)  in vhost_sock_zcopy()  argument
231 		sock_flag(sock->sk, SOCK_ZEROCOPY);  in vhost_sock_zcopy()
309 	struct socket *sock;  in handle_tx()  local
314 	sock = vq->private_data;  in handle_tx()
315 	if (!sock)  in handle_tx()
393 		err = sock->ops->sendmsg(sock, &msg, len);  in handle_tx()
421 static int peek_head_len(struct sock *sk)  in peek_head_len()
540 	struct socket *sock;  in handle_rx()  local
545 	sock = vq->private_data;  in handle_rx()
546 	if (!sock)  in handle_rx()
557 	while ((sock_len = peek_head_len(sock->sk))) {  in handle_rx()
569 			err = sock->ops->recvmsg(sock, &msg,  in handle_rx()
595 		err = sock->ops->recvmsg(sock, &msg,  in handle_rx()
735 	struct socket *sock;  in vhost_net_enable_vq()  local
737 	sock = vq->private_data;  in vhost_net_enable_vq()
738 	if (!sock)  in vhost_net_enable_vq()
741 	return vhost_poll_start(poll, sock->file);  in vhost_net_enable_vq()
747 	struct socket *sock;  in vhost_net_stop_vq()  local
750 	sock = vq->private_data;  in vhost_net_stop_vq()
754 	return sock;  in vhost_net_stop_vq()
819 	struct socket *sock = sockfd_lookup(fd, &r);  in get_raw_socket()  local
821 	if (!sock)  in get_raw_socket()
825 	if (sock->sk->sk_type != SOCK_RAW) {  in get_raw_socket()
830 	r = sock->ops->getname(sock, (struct sockaddr *)&uaddr.sa,  in get_raw_socket()
839 	return sock;  in get_raw_socket()
841 	sockfd_put(sock);  in get_raw_socket()
848 	struct socket *sock;  in get_tap_socket()  local
852 	sock = tun_get_socket(file);  in get_tap_socket()
853 	if (!IS_ERR(sock))  in get_tap_socket()
854 		return sock;  in get_tap_socket()
855 	sock = macvtap_get_socket(file);  in get_tap_socket()
856 	if (IS_ERR(sock))  in get_tap_socket()
858 	return sock;  in get_tap_socket()
863 	struct socket *sock;  in get_socket()  local
868 	sock = get_raw_socket(fd);  in get_socket()
869 	if (!IS_ERR(sock))  in get_socket()
870 		return sock;  in get_socket()
871 	sock = get_tap_socket(fd);  in get_socket()
872 	if (!IS_ERR(sock))  in get_socket()
873 		return sock;  in get_socket()
879 	struct socket *sock, *oldsock;  in vhost_net_set_backend()  local
903 	sock = get_socket(fd);  in vhost_net_set_backend()
904 	if (IS_ERR(sock)) {  in vhost_net_set_backend()
905 		r = PTR_ERR(sock);  in vhost_net_set_backend()
911 	if (sock != oldsock) {  in vhost_net_set_backend()
913 					     sock && vhost_sock_zcopy(sock));  in vhost_net_set_backend()
920 		vq->private_data = sock;  in vhost_net_set_backend()
959 	sockfd_put(sock);  in vhost_net_set_backend()