diff --git a/sys/kern/uipc_socket.c b/sys/kern/uipc_socket.c
--- a/sys/kern/uipc_socket.c
+++ b/sys/kern/uipc_socket.c
@@ -95,9 +95,9 @@
  *
  * NOTE: With regard to VNETs the general rule is that callers do not set
  * curvnet. Exceptions to this rule include soabort(), sodisconnect(),
- * sofree() (and with that sorele(), sotryfree()), as well as sonewconn()
- * and sorflush(), which are usually called from a pre-set VNET context.
- * sopoll() currently does not need a VNET context to be set.
+ * sofree() (and with that sorele(), sotryfree()), as well as sonewconn(),
+ * which are usually called from a pre-set VNET context. sopoll() currently
+ * does not need a VNET context to be set.
  */
 
 #include <sys/cdefs.h>
@@ -2971,36 +2971,6 @@
 	return (error);
 }
 
-/*
- * Used by several pr_shutdown implementations that use generic socket buffers.
- */
-void
-sorflush(struct socket *so)
-{
-	int error;
-
-	VNET_SO_ASSERT(so);
-
-	/*
-	 * Dislodge threads currently blocked in receive and wait to acquire
-	 * a lock against other simultaneous readers before clearing the
-	 * socket buffer.  Don't let our acquire be interrupted by a signal
-	 * despite any existing socket disposition on interruptable waiting.
-	 */
-	socantrcvmore(so);
-
-	error = SOCK_IO_RECV_LOCK(so, SBL_WAIT | SBL_NOINTR);
-	if (error != 0) {
-		KASSERT(SOLISTENING(so),
-		    ("%s: soiolock(%p) failed", __func__, so));
-		return;
-	}
-
-	sbrelease(so, SO_RCV);
-	SOCK_IO_RECV_UNLOCK(so);
-
-}
-
 /*
  * Wrapper for Socket established helper hook.
  * Parameters: socket, context of the hook point, hook id.
diff --git a/sys/net/rtsock.c b/sys/net/rtsock.c
--- a/sys/net/rtsock.c
+++ b/sys/net/rtsock.c
@@ -457,10 +457,12 @@
 	 */
 	switch (how) {
 	case SHUT_RD:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		break;
 	case SHUT_RDWR:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		/* FALLTHROUGH */
 	case SHUT_WR:
 		socantsendmore(so);
diff --git a/sys/netinet/raw_ip.c b/sys/netinet/raw_ip.c
--- a/sys/netinet/raw_ip.c
+++ b/sys/netinet/raw_ip.c
@@ -994,10 +994,12 @@
 
 	switch (how) {
 	case SHUT_RD:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		break;
 	case SHUT_RDWR:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		/* FALLTHROUGH */
 	case SHUT_WR:
 		socantsendmore(so);
diff --git a/sys/netinet/sctp_usrreq.c b/sys/netinet/sctp_usrreq.c
--- a/sys/netinet/sctp_usrreq.c
+++ b/sys/netinet/sctp_usrreq.c
@@ -868,11 +868,7 @@
 			SCTP_TCB_UNLOCK(stcb);
 		}
 		SCTP_INP_WUNLOCK(inp);
-		/*
-		 * XXXGL: does SCTP need sorflush()? This is what old
-		 * soshutdown() used to do for all kinds of sockets.
-		 */
-		sorflush(so);
+		socantrcvmore(so);
 		if (how == SHUT_RD)
 			break;
 		/* FALLTHROUGH */
diff --git a/sys/netinet/tcp_usrreq.c b/sys/netinet/tcp_usrreq.c
--- a/sys/netinet/tcp_usrreq.c
+++ b/sys/netinet/tcp_usrreq.c
@@ -824,10 +824,12 @@
 
 	switch (how) {
 	case SHUT_RD:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		break;
 	case SHUT_RDWR:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		/* FALLTHROUGH */
 	case SHUT_WR:
 		/*
diff --git a/sys/netinet/udp_usrreq.c b/sys/netinet/udp_usrreq.c
--- a/sys/netinet/udp_usrreq.c
+++ b/sys/netinet/udp_usrreq.c
@@ -1696,10 +1696,12 @@
 
 	switch (how) {
 	case SHUT_RD:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		break;
 	case SHUT_RDWR:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		/* FALLTHROUGH */
 	case SHUT_WR:
 		socantsendmore(so);
diff --git a/sys/netinet6/raw_ip6.c b/sys/netinet6/raw_ip6.c
--- a/sys/netinet6/raw_ip6.c
+++ b/sys/netinet6/raw_ip6.c
@@ -839,10 +839,12 @@
 
 	switch (how) {
 	case SHUT_RD:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		break;
 	case SHUT_RDWR:
-		sorflush(so);
+		socantrcvmore(so);
+		sbrelease(so, SO_RCV);
 		/* FALLTHROUGH */
 	case SHUT_WR:
 		socantsendmore(so);
diff --git a/sys/sys/socketvar.h b/sys/sys/socketvar.h
--- a/sys/sys/socketvar.h
+++ b/sys/sys/socketvar.h
@@ -501,7 +501,6 @@
 void	sorele_locked(struct socket *so);
 void	sodealloc(struct socket *);
 int	soreserve(struct socket *so, u_long sndcc, u_long rcvcc);
-void	sorflush(struct socket *so);
 int	sosend(struct socket *so, struct sockaddr *addr, struct uio *uio,
 	    struct mbuf *top, struct mbuf *control, int flags,
 	    struct thread *td);