Use a folio in copy_nonpresent_pte(), which is a preparetion for
converting mm counter functions to take a folio.
Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
mm/memory.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
diff --git a/mm/memory.c b/mm/memory.c
index 1f18ed4a5497..914353d1c7f1 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -779,7 +779,7 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
unsigned long vm_flags = dst_vma->vm_flags;
pte_t orig_pte = ptep_get(src_pte);
pte_t pte = orig_pte;
- struct page *page;
+ struct folio *folio;
swp_entry_t entry = pte_to_swp_entry(orig_pte);
if (likely(!non_swap_entry(entry))) {
@@ -801,9 +801,9 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
}
rss[MM_SWAPENTS]++;
} else if (is_migration_entry(entry)) {
- page = pfn_swap_entry_to_page(entry);
+ folio = pfn_swap_entry_to_folio(entry);
- rss[mm_counter(page)]++;
+ rss[mm_counter(&folio->page)]++;
if (!is_readable_migration_entry(entry) &&
is_cow_mapping(vm_flags)) {
@@ -822,8 +822,9 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
set_pte_at(src_mm, addr, src_pte, pte);
}
} else if (is_device_private_entry(entry)) {
- page = pfn_swap_entry_to_page(entry);
+ struct page *page = pfn_swap_entry_to_page(entry);
+ folio = page_folio(page);
/*
* Update rss count even for unaddressable pages, as
* they should treated just like normal pages in this
@@ -833,7 +834,7 @@ copy_nonpresent_pte(struct mm_struct *dst_mm, struct mm_struct *src_mm,
* for unaddressable pages, at some point. But for now
* keep things as they are.
*/
- get_page(page);
+ folio_get(folio);
rss[mm_counter(page)]++;
/* Cannot fail as these pages cannot get pinned. */
BUG_ON(page_try_dup_anon_rmap(page, false, src_vma));
--
2.27.0
