[PATCH v1 37/39] mm/rmap: remove page_try_dup_anon_rmap()

David Hildenbrand
2023-12-11T16:00:01Z

All users are gone, remove page_try_dup_anon_rmap() and any remaining
traces.

Signed-off-by: David Hildenbrand <david@redhat.com>
---
include/linux/rmap.h | 16 +++-------------
1 file changed, 3 insertions(+), 13 deletions(-)

diff --git a/include/linux/rmap.h b/include/linux/rmap.h
index c6d8a02ecd56..1e37ee6ae0ba 100644
--- a/include/linux/rmap.h
+++ b/include/linux/rmap.h
@@ -256,7 +256,7 @@ void hugetlb_add_anon_rmap(struct folio *, struct vm_area_struct *,
void hugetlb_add_new_anon_rmap(struct folio *, struct vm_area_struct *,
unsigned long address);

-/* See page_try_dup_anon_rmap() */
+/* See folio_try_dup_anon_rmap_*() */
static inline int hugetlb_try_dup_anon_rmap(struct folio *folio,
struct vm_area_struct *vma)
{
@@ -481,16 +481,6 @@ static inline int folio_try_dup_anon_rmap_pmd(struct folio *folio,
#endif
}

-static inline int page_try_dup_anon_rmap(struct page *page, bool compound,
- struct vm_area_struct *vma)
-{
- struct folio *folio = page_folio(page);
-
- if (likely(!compound))
- return folio_try_dup_anon_rmap_pte(folio, page, vma);
- return folio_try_dup_anon_rmap_pmd(folio, page, vma);
-}
-
/**
* page_try_share_anon_rmap - try marking an exclusive anonymous page possibly
* shared to prepare for KSM or temporary unmapping
@@ -499,8 +489,8 @@ static inline int page_try_dup_anon_rmap(struct page *page, bool compound,
* The caller needs to hold the PT lock and has to have the page table entry
* cleared/invalidated.
*
- * This is similar to page_try_dup_anon_rmap(), however, not used during fork()
- * to duplicate a mapping, but instead to prepare for KSM or temporarily
+ * This is similar to folio_try_dup_anon_rmap_*(), however, not used during
+ * fork() to duplicate a mapping, but instead to prepare for KSM or temporarily
* unmapping a page (swap, migration) via folio_remove_rmap_*().
*
* Marking the page shared can only fail if the page may be pinned; device
--
2.43.0