On Thu, Jul 17, 2025 at 10:14:33PM +0200, David Hildenbrand wrote: > On 17.07.25 22:03, Lorenzo Stoakes wrote: > > On Thu, Jul 17, 2025 at 01:52:11PM +0200, David Hildenbrand wrote: > > > Let's introduce vm_normal_page_pud(), which ends up being fairly simple > > > because of our new common helpers and there not being a PUD-sized zero > > > folio. > > > > > > Use vm_normal_page_pud() in folio_walk_start() to resolve a TODO, > > > structuring the code like the other (pmd/pte) cases. Defer > > > introducing vm_normal_folio_pud() until really used. > > > > I mean fine :P but does anybody really use this? > > This is a unified PFN walker (!hugetlb + hugetlb), so you can easily run > into hugetlb PUDs, DAX PUDs and huge pfnmap (vfio) PUDs :) Ahhh ok. I hate hugetlb so very very much. Oscar is doing the Lord's work improving things but the trauma is still there... :P Also yeah DAX ahem. I'm not familiar with huge pfnmap PUDs, could you give me a hint on this? :>) > > -- > Cheers, > > David / dhildenb >
