[PATCH 05/29] dax: remove the pgmap sanity checks in generic_fsdax_supported

[Dan Williams]

On Tue, Nov 9, 2021 at 12:33 AM Christoph Hellwig <hch at lst.de> wrote:
>
> Drivers that register a dax_dev should make sure it works, no need
> to double check from the file system.

Reviewed-by: Dan Williams <dan.j.williams at intel.com>

...with a self-reminder to migrate this validation to a unit test to
backstop any future refactoring of the memmap reservation code.