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 :)
--
Cheers,
David / dhildenb
