227 static bool vhost_sock_zcopy(struct socket *sock)  in vhost_sock_zcopy()  argument
230 		sock_flag(sock->sk, SOCK_ZEROCOPY);  in vhost_sock_zcopy()
308 	struct socket *sock;  in handle_tx()  local
313 	sock = vq->private_data;  in handle_tx()
314 	if (!sock)  in handle_tx()
392 		err = sock->ops->sendmsg(sock, &msg, len);  in handle_tx()
420 static int peek_head_len(struct sock *sk)  in peek_head_len()
539 	struct socket *sock;  in handle_rx()  local
544 	sock = vq->private_data;  in handle_rx()
545 	if (!sock)  in handle_rx()
556 	while ((sock_len = peek_head_len(sock->sk))) {  in handle_rx()
568 			err = sock->ops->recvmsg(sock, &msg,  in handle_rx()
594 		err = sock->ops->recvmsg(sock, &msg,  in handle_rx()
734 	struct socket *sock;  in vhost_net_enable_vq()  local
736 	sock = vq->private_data;  in vhost_net_enable_vq()
737 	if (!sock)  in vhost_net_enable_vq()
740 	return vhost_poll_start(poll, sock->file);  in vhost_net_enable_vq()
746 	struct socket *sock;  in vhost_net_stop_vq()  local
749 	sock = vq->private_data;  in vhost_net_stop_vq()
753 	return sock;  in vhost_net_stop_vq()
818 	struct socket *sock = sockfd_lookup(fd, &r);  in get_raw_socket()  local
820 	if (!sock)  in get_raw_socket()
824 	if (sock->sk->sk_type != SOCK_RAW) {  in get_raw_socket()
829 	r = sock->ops->getname(sock, (struct sockaddr *)&uaddr.sa,  in get_raw_socket()
838 	return sock;  in get_raw_socket()
840 	sockfd_put(sock);  in get_raw_socket()
847 	struct socket *sock;  in get_tap_socket()  local
851 	sock = tun_get_socket(file);  in get_tap_socket()
852 	if (!IS_ERR(sock))  in get_tap_socket()
853 		return sock;  in get_tap_socket()
854 	sock = macvtap_get_socket(file);  in get_tap_socket()
855 	if (IS_ERR(sock))  in get_tap_socket()
857 	return sock;  in get_tap_socket()
862 	struct socket *sock;  in get_socket()  local
867 	sock = get_raw_socket(fd);  in get_socket()
868 	if (!IS_ERR(sock))  in get_socket()
869 		return sock;  in get_socket()
870 	sock = get_tap_socket(fd);  in get_socket()
871 	if (!IS_ERR(sock))  in get_socket()
872 		return sock;  in get_socket()
878 	struct socket *sock, *oldsock;  in vhost_net_set_backend()  local
902 	sock = get_socket(fd);  in vhost_net_set_backend()
903 	if (IS_ERR(sock)) {  in vhost_net_set_backend()
904 		r = PTR_ERR(sock);  in vhost_net_set_backend()
910 	if (sock != oldsock) {  in vhost_net_set_backend()
912 					     sock && vhost_sock_zcopy(sock));  in vhost_net_set_backend()
919 		vq->private_data = sock;  in vhost_net_set_backend()
958 	sockfd_put(sock);  in vhost_net_set_backend()