Re: [PATCH v2 3/9] mm/huge_memory: support huge zero folio in vmf_insert_folio_pmd()

On Thu, Jul 17, 2025 at 01:52:06PM +0200, David Hildenbrand wrote: >Just like we do for vmf_insert_page_mkwrite() -> ... -> >insert_page_into_pte_locked() with the shared zeropage, support the >huge zero folio in vmf_insert_folio_pmd(). > >When (un)mapping the huge zero folio in page tables, we nei

Re: [PATCH v2 3/9] mm/huge_memory: support huge zero folio in vmf_insert_folio_pmd()

On Thu, Jul 17, 2025 at 01:52:06PM +0200, David Hildenbrand wrote: > Just like we do for vmf_insert_page_mkwrite() -> ... -> > insert_page_into_pte_locked() with the shared zeropage, support the > huge zero folio in vmf_insert_folio_pmd(). > > When (un)mapping the huge zero folio in page tables, we

[PATCH v2 3/9] mm/huge_memory: support huge zero folio in vmf_insert_folio_pmd()

Just like we do for vmf_insert_page_mkwrite() -> ... -> insert_page_into_pte_locked() with the shared zeropage, support the huge zero folio in vmf_insert_folio_pmd(). When (un)mapping the huge zero folio in page tables, we neither adjust the refcount nor the mapcount, just like for the shared zero