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authorStefan Hajnoczi <stefanha@redhat.com>2016-07-28 15:36:31 +0100
committerMichael S. Tsirkin <mst@redhat.com>2016-08-02 02:57:28 +0300
commit6773b7dc39f165bd9d824b50ac52cbb3f87d53c8 (patch)
treeeec9a1d84ed6d1c3113cd35c47887d6dd42d4448 /net/vmw_vsock
parent0b01aeb3d2fbf16787f0c9629f4ca52ae792f732 (diff)
downloadlinux-6773b7dc39f165bd9d824b50ac52cbb3f87d53c8.tar.gz
VSOCK: defer sock removal to transports
The virtio transport will implement graceful shutdown and the related
SO_LINGER socket option.  This requires orphaning the sock but keeping
it in the table of connections after .release().

This patch adds the vsock_remove_sock() function and leaves it up to the
transport when to remove the sock.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'net/vmw_vsock')
-rw-r--r--net/vmw_vsock/af_vsock.c16
-rw-r--r--net/vmw_vsock/vmci_transport.c2
2 files changed, 12 insertions, 6 deletions
diff --git a/net/vmw_vsock/af_vsock.c b/net/vmw_vsock/af_vsock.c
index e34d96f8bde2..17dbbe64cd73 100644
--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -344,6 +344,16 @@ static bool vsock_in_connected_table(struct vsock_sock *vsk)
 	return ret;
 }
 
+void vsock_remove_sock(struct vsock_sock *vsk)
+{
+	if (vsock_in_bound_table(vsk))
+		vsock_remove_bound(vsk);
+
+	if (vsock_in_connected_table(vsk))
+		vsock_remove_connected(vsk);
+}
+EXPORT_SYMBOL_GPL(vsock_remove_sock);
+
 void vsock_for_each_connected_socket(void (*fn)(struct sock *sk))
 {
 	int i;
@@ -660,12 +670,6 @@ static void __vsock_release(struct sock *sk)
 		vsk = vsock_sk(sk);
 		pending = NULL;	/* Compiler warning. */
 
-		if (vsock_in_bound_table(vsk))
-			vsock_remove_bound(vsk);
-
-		if (vsock_in_connected_table(vsk))
-			vsock_remove_connected(vsk);
-
 		transport->release(vsk);
 
 		lock_sock(sk);
diff --git a/net/vmw_vsock/vmci_transport.c b/net/vmw_vsock/vmci_transport.c
index 4120b7a538be..4be4fbbc0b50 100644
--- a/net/vmw_vsock/vmci_transport.c
+++ b/net/vmw_vsock/vmci_transport.c
@@ -1644,6 +1644,8 @@ static void vmci_transport_destruct(struct vsock_sock *vsk)
 
 static void vmci_transport_release(struct vsock_sock *vsk)
 {
+	vsock_remove_sock(vsk);
+
 	if (!vmci_handle_is_invalid(vmci_trans(vsk)->dg_handle)) {
 		vmci_datagram_destroy_handle(vmci_trans(vsk)->dg_handle);
 		vmci_trans(vsk)->dg_handle = VMCI_INVALID_HANDLE;