vsock/virtio: reset connected sockets on device removal

Started by Sasha Levin on Feb 28, 2019

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DORMANTno replies REVIEWED · 1 review, 1 by a maintainer

Status: Reviewed.

1 review trailer (1 from subsystem maintainers).

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From: Stefano Garzarella <sgarzare@redhat.com>

[ Upstream commit 85965487abc540368393a15491e6e7fcd230039d ]

When the virtio transport device disappear, we should reset all
connected sockets in order to inform the users.

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/vmw_vsock/virtio_transport.c | 3 +++
 1 file changed, 3 insertions(+)
diff --git a/net/vmw_vsock/virtio_transport.c b/net/vmw_vsock/virtio_transport.c
index 6cbc08d82e7fd..f66a6010ae075 100644
--- a/net/vmw_vsock/virtio_transport.c
+++ b/net/vmw_vsock/virtio_transport.c
@@ -541,6 +541,9 @@ static void virtio_vsock_remove(struct virtio_device *vdev)
 	flush_work(&vsock->event_work);
 	flush_work(&vsock->send_pkt_work);
 
+	/* Reset all connected sockets when the device disappear */
+	vsock_for_each_connected_socket(virtio_vsock_reset_sock);
+
 	vdev->config->reset(vdev);
 
 	mutex_lock(&vsock->rx_lock);
-- 
2.19.1
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