[PATCH v6 17/26] memremap: Add is_devdax_page() and is_fsdax_page() helpers

[Dan Williams]

Alistair Popple wrote:
> Add helpers to determine if a page or folio is a devdax or fsdax page
> or folio.
> 
> Signed-off-by: Alistair Popple <apopple at nvidia.com>
> Acked-by: David Hildenbrand <david at redhat.com>
> 
> ---
> 
> Changes for v5:
>  - Renamed is_device_dax_page() to is_devdax_page() for consistency.
> ---
>  include/linux/memremap.h | 22 ++++++++++++++++++++++
>  1 file changed, 22 insertions(+)

Patch does what it says on the tin, but I am not a fan patches this
tiny. Fold it in with the first user.