linux-kernel - [RFC PATCH 08/13] vsock: move vsock_insert_unbound() in the vsock

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Message-Id: <20190927112703.17745-9-sgarzare@redhat.com>
Date:   Fri, 27 Sep 2019 13:26:58 +0200
From:   Stefano Garzarella <sgarzare@...hat.com>
To:     netdev@...r.kernel.org
Cc:     linux-hyperv@...r.kernel.org,
        "K. Y. Srinivasan" <kys@...rosoft.com>,
        Stefan Hajnoczi <stefanha@...hat.com>,
        Sasha Levin <sashal@...nel.org>, linux-kernel@...r.kernel.org,
        kvm@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
        virtualization@...ts.linux-foundation.org,
        Stephen Hemminger <sthemmin@...rosoft.com>,
        Jason Wang <jasowang@...hat.com>,
        "Michael S. Tsirkin" <mst@...hat.com>,
        Haiyang Zhang <haiyangz@...rosoft.com>,
        Dexuan Cui <decui@...rosoft.com>,
        Jorgen Hansen <jhansen@...are.com>
Subject: [RFC PATCH 08/13] vsock: move vsock_insert_unbound() in the vsock_create()

vsock_insert_unbound() was called only when 'sock' parameter of
__vsock_create() was not null. This only happened when
__vsock_create() was called by vsock_create().

In order to simplify the multi-transports support, this patch
moves vsock_insert_unbound() at the end of vsock_create().

Signed-off-by: Stefano Garzarella <sgarzare@...hat.com>
---
 net/vmw_vsock/af_vsock.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index dee69d7ee148..95e6db21e7e1 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -634,9 +634,6 @@ struct sock *__vsock_create(struct net *net,
 		return NULL;
 	}
 
-	if (sock)
-		vsock_insert_unbound(vsk);
-
 	return sk;
 }
 EXPORT_SYMBOL_GPL(__vsock_create);
@@ -1875,6 +1872,8 @@ static const struct proto_ops vsock_stream_ops = {
 static int vsock_create(struct net *net, struct socket *sock,
 			int protocol, int kern)
 {
+	struct sock *sk;
+
 	if (!sock)
 		return -EINVAL;
 
@@ -1894,7 +1893,13 @@ static int vsock_create(struct net *net, struct socket *sock,
 
 	sock->state = SS_UNCONNECTED;
 
-	return __vsock_create(net, sock, NULL, GFP_KERNEL, 0, kern) ? 0 : -ENOMEM;
+	sk = __vsock_create(net, sock, NULL, GFP_KERNEL, 0, kern);
+	if (!sk)
+		return -ENOMEM;
+
+	vsock_insert_unbound(vsock_sk(sk));
+
+	return 0;
 }
 
 static const struct net_proto_family vsock_family_ops = {
-- 
2.21.0