Let's convert copy_huge_pmd() and fixup the comment in copy_huge_pud().
While at it, perform more folio conversion in copy_huge_pmd().
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/huge_memory.c | 12 +++++++-----
1 file changed, 7 insertions(+), 5 deletions(-)
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 9376c28b0ad29..138e1e62790be 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1098,6 +1098,7 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
{
spinlock_t *dst_ptl, *src_ptl;
struct page *src_page;
+ struct folio *src_folio;
pmd_t pmd;
pgtable_t pgtable = NULL;
int ret = -ENOMEM;
@@ -1164,11 +1165,12 @@ int copy_huge_pmd(struct mm_struct *dst_mm, struct mm_struct *src_mm,
src_page = pmd_page(pmd);
VM_BUG_ON_PAGE(!PageHead(src_page), src_page);
+ src_folio = page_folio(src_page);
- get_page(src_page);
- if (unlikely(page_try_dup_anon_rmap(src_page, true, src_vma))) {
+ folio_get(src_folio);
+ if (unlikely(folio_try_dup_anon_rmap_pmd(src_folio, src_page, src_vma))) {
/* Page maybe pinned: split and retry the fault on PTEs. */
- put_page(src_page);
+ folio_put(src_folio);
pte_free(dst_mm, pgtable);
spin_unlock(src_ptl);
spin_unlock(dst_ptl);
@@ -1277,8 +1279,8 @@ int copy_huge_pud(struct mm_struct *dst_mm, struct mm_struct *src_mm,
}
/*
- * TODO: once we support anonymous pages, use page_try_dup_anon_rmap()
- * and split if duplicating fails.
+ * TODO: once we support anonymous pages, use
+ * folio_try_dup_anon_rmap_*() and split if duplicating fails.
*/
pudp_set_wrprotect(src_mm, addr, src_pud);
pud = pud_mkold(pud_wrprotect(pud));
--
2.41.0
