On Fri, May 24, 2019 at 09:07:11AM -0700, Larry Bassel wrote:
Again, I don't think this can happen in DAX. The only sharing
is for FS/DAX/2MiB pagesize.
Hm. I still don't follow. How do you guarantee that DAX actually allocated
continues space for the file on backing storage and you can map it with
PMD page? I believe you don't have such guarantee.
Kirill A. Shutemov