1632 so_splice(struct socket *so, struct socket *so2, struct splice *splice)  argument
1641 	    so2->so_proto->pr_protocol != IPPROTO_TCP)
1643 	if (so->so_vnet != so2->so_vnet)
1649 	KASSERT(so2->so_proto->pr_soreceive == soreceive_generic ||
1650 	    so2->so_proto->pr_soreceive == soreceive_stream,
1656 	sp->dst = so2;
1679 	SOCK_LOCK(so2);
1680 	if (SOLISTENING(so2))
1682 	else if ((so2->so_state & (SS_ISCONNECTED | SS_ISCONNECTING)) == 0)
1684 	else if (so2->so_splice_back != NULL)
1687 		SOCK_UNLOCK(so2);
1698 	soref(so2);
1699 	so2->so_splice_back = sp;
1700 	SOCK_SENDBUF_LOCK(so2);
1701 	so2->so_snd.sb_flags |= SB_SPLICED;
1703 	SOCK_SENDBUF_UNLOCK(so2);
1704 	SOCK_UNLOCK(so2);
1722 	struct socket *so2;  local
1748 	so2 = sp->dst;
1749 	SOCK_LOCK(so2);
1750 	KASSERT(!SOLISTENING(so2), ("%s: so2 is listening", __func__));
1751 	SOCK_SENDBUF_LOCK(so2);
1752 	KASSERT((so2->so_snd.sb_flags & SB_SPLICED) != 0,
1754 	KASSERT(so2->so_splice_back == sp,
1756 	so2->so_snd.sb_flags &= ~SB_SPLICED;
1757 	so2->so_splice_back = NULL;
1758 	SOCK_SENDBUF_UNLOCK(so2);
1759 	SOCK_UNLOCK(so2);
1798 	sowwakeup(so2);
1799 	sorele(so2);
2032 soconnect2(struct socket *so1, struct socket *so2)  argument
2037 	error = so1->so_proto->pr_connect2(so1, so2);
3970 				struct socket *so2;  local
3981 				so2 = fp->f_data;
3983 				error = so_splice(so, so2, &splice);