RE: [PATCH net-next 13/14] vsock: prevent transport modules unloading

[Jorgen Hansen]

> From: Stefano Garzarella [mailto:sgarzare@xxxxxxxxxx]
> Sent: Wednesday, October 23, 2019 11:56 AM

> This patch adds 'module' member in the 'struct vsock_transport'
> in order to get/put the transport module. This prevents the
> module unloading while sockets are assigned to it.
> 
> We increase the module refcnt when a socket is assigned to a
> transport, and we decrease the module refcnt when the socket
> is destructed.
> 
> Reviewed-by: Stefan Hajnoczi <stefanha@xxxxxxxxxx>
> Signed-off-by: Stefano Garzarella <sgarzare@xxxxxxxxxx>
> ---
> RFC -> v1:
> - fixed typo 's/tranport/transport/' in a comment (Stefan)
> ---
>  drivers/vhost/vsock.c            |  2 ++
>  include/net/af_vsock.h           |  2 ++
>  net/vmw_vsock/af_vsock.c         | 20 ++++++++++++++++----
>  net/vmw_vsock/hyperv_transport.c |  2 ++
>  net/vmw_vsock/virtio_transport.c |  2 ++
>  net/vmw_vsock/vmci_transport.c   |  1 +
>  6 files changed, 25 insertions(+), 4 deletions(-)

Reviewed-by: Jorgen Hansen <jhansen@xxxxxxxxxx>