On 13.11.24 17:39, Peter Xu wrote:
On Mon, Nov 11, 2024 at 10:20:59PM +0100, Jann Horn wrote:
On Mon, Aug 12, 2024 at 8:12 PM Peter Xu <peterx@xxxxxxxxxx> wrote:
Dax supports pud pages for a while, but mprotect on puds was missing since
the start. This series tries to fix that by providing pud handling in
mprotect(). The goal is to add more types of pud mappings like hugetlb or
pfnmaps. This series paves way for it by fixing known pud entries.
Do people actually use hardware where they can use PUD THP mappings
for DAX? I thought that was just some esoteric feature that isn't
actually usable on almost any system.
Was I wrong about that?
I did run it with a qemu emulated nvdimm device. Though in reality I've no
idea on how many people are using it..
I wonder if we still have to support it ... or could disable it+rip it out.
--
Cheers,
David / dhildenb
