SUNRPC: Initiate a connection close on an ESHUTDOWN error in stream r…

…eceive

If the client stream receive code receives an ESHUTDOWN error either
because the server closed the connection, or because it sent a
callback which cannot be processed, then we should shut down
the connection.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>

net/sunrpc/xprtsock.c

@@ -705,7 +705,10 @@ static void xs_stream_data_receive(struct sock_xprt *transport)
 		read += ret;
 		cond_resched();
 	}
-	xs_poll_check_readable(transport);
+	if (ret == -ESHUTDOWN)
+		kernel_sock_shutdown(transport->sock, SHUT_RDWR);
+	else
+		xs_poll_check_readable(transport);
 out:
 	mutex_unlock(&transport->recv_mutex);
 	trace_xs_stream_read_data(&transport->xprt, ret, read);