On Wed, Jan 30, 2019 at 04:19:48PM +0000, Paul Durrant wrote:
> Some frontend drivers will handle dynamic resizing of PV disks, so set up
> the BlockDevOps resize_cb() method during xen_block_realize() to allow
> this to be done.
> 
> Signed-off-by: Paul Durrant <paul.durr...@citrix.com>
> ---


> +    /*
> +     * Mimic the behaviour of Linux xen-blkback and re-write the state
> +     * to trigger the frontend watch.
> +     */
> +    xen_device_backend_set_state(xendev, backend_state);

:(, that function doesn't write the state again if it hasn't changed.
So in my testing, Linux never did anything.

-- 
Anthony PERARD

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