<p dir="ltr">I've got a block storage driver whose backing device can dirty data on-disk without OS action. How can I communicate that dirtied state to vfs such that caches are purged, etc?</p>
<p dir="ltr">Data dirtied by the backing device is only known asynchronously. I think I need to solve this in request_fn().</p>
<p dir="ltr">Thanks</p>