[PATCH v1 2/2] mm: remove extra ZONE_DEVICE struct page refcount

[Jason Gunthorpe]

On Thu, Oct 14, 2021 at 10:35:27AM -0700, Ralph Campbell wrote:

> I ran xfstests-dev using the kernel boot option to "fake" a pmem device
> when I first posted this patch. The tests ran OK (or at least the same
> tests passed with and without my patch). 

Hmm. I know nothing of xfstests but 

tests/generic/413

Looks kind of like it might cover this situation?

Did it run for you?

Jason