futher decouple DAX from block devices

[Eric Sandeen]

On 10/17/21 11:40 PM, Christoph Hellwig wrote:
> Hi Dan,
> 
> this series cleans up and simplifies the association between DAX and block
> devices in preparation of allowing to mount file systems directly on DAX
> devices without a detour through block devices.

Christoph, can I ask what the end game looks like, here? If dax is completely
decoupled from block devices, are there user-visible changes? If I want to
run fs-dax on a pmem device - what do I point mkfs at, if not a block device?

Thanks,
-Eric