From b06dc281aa9901076898d4d0a7bde588f11bc204 Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Wed, 20 Dec 2023 23:44:47 +0100 Subject: mm/rmap: introduce folio_remove_rmap_[pte|ptes|pmd]() Let's mimic what we did with folio_add_file_rmap_*() and folio_add_anon_rmap_*() so we can similarly replace page_remove_rmap() next. Make the compiler always special-case on the granularity by using __always_inline. We're adding folio_remove_rmap_ptes() handling right away, as we want to use that soon for batching rmap operations when unmapping PTE-mapped large folios. Link: https://lkml.kernel.org/r/20231220224504.646757-24-david@redhat.com Signed-off-by: David Hildenbrand Cc: Hugh Dickins Cc: Matthew Wilcox (Oracle) Cc: Muchun Song Cc: Muchun Song Cc: Peter Xu Cc: Ryan Roberts Cc: Yin Fengwei Signed-off-by: Andrew Morton --- include/linux/rmap.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/linux/rmap.h b/include/linux/rmap.h index bf6cb79aa7a0..57e045093f04 100644 --- a/include/linux/rmap.h +++ b/include/linux/rmap.h @@ -243,6 +243,12 @@ void folio_add_file_rmap_pmd(struct folio *, struct page *, struct vm_area_struct *); void page_remove_rmap(struct page *, struct vm_area_struct *, bool compound); +void folio_remove_rmap_ptes(struct folio *, struct page *, int nr_pages, + struct vm_area_struct *); +#define folio_remove_rmap_pte(folio, page, vma) \ + folio_remove_rmap_ptes(folio, page, 1, vma) +void folio_remove_rmap_pmd(struct folio *, struct page *, + struct vm_area_struct *); void hugetlb_add_anon_rmap(struct folio *, struct vm_area_struct *, unsigned long address, rmap_t flags); -- cgit v1.2.3