[PATCH 04/18] mm: rmap: use mm_counter_[file]_folio()

[Kefeng Wang]

Use mm_counter_folio() and mm_counter_file_folio() to save five
compound_head() calls.

Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx>
---
 mm/rmap.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/mm/rmap.c b/mm/rmap.c
index 7a27a2b41802..9d77975eaa35 100644
--- a/mm/rmap.c
+++ b/mm/rmap.c
@@ -1678,7 +1678,7 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma,
 				set_huge_pte_at(mm, address, pvmw.pte, pteval,
 						hsz);
 			} else {
-				dec_mm_counter(mm, mm_counter(&folio->page));
+				dec_mm_counter(mm, mm_counter_folio(folio));
 				set_pte_at(mm, address, pvmw.pte, pteval);
 			}
 
@@ -1693,7 +1693,7 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma,
 			 * migration) will not expect userfaults on already
 			 * copied pages.
 			 */
-			dec_mm_counter(mm, mm_counter(&folio->page));
+			dec_mm_counter(mm, mm_counter_folio(folio));
 		} else if (folio_test_anon(folio)) {
 			swp_entry_t entry = page_swap_entry(subpage);
 			pte_t swp_pte;
@@ -1801,7 +1801,7 @@ static bool try_to_unmap_one(struct folio *folio, struct vm_area_struct *vma,
 			 *
 			 * See Documentation/mm/mmu_notifier.rst
 			 */
-			dec_mm_counter(mm, mm_counter_file(&folio->page));
+			dec_mm_counter(mm, mm_counter_file_folio(folio));
 		}
 discard:
 		page_remove_rmap(subpage, vma, folio_test_hugetlb(folio));
@@ -2075,7 +2075,7 @@ static bool try_to_migrate_one(struct folio *folio, struct vm_area_struct *vma,
 				set_huge_pte_at(mm, address, pvmw.pte, pteval,
 						hsz);
 			} else {
-				dec_mm_counter(mm, mm_counter(&folio->page));
+				dec_mm_counter(mm, mm_counter_folio(folio));
 				set_pte_at(mm, address, pvmw.pte, pteval);
 			}
 
@@ -2090,7 +2090,7 @@ static bool try_to_migrate_one(struct folio *folio, struct vm_area_struct *vma,
 			 * migration) will not expect userfaults on already
 			 * copied pages.
 			 */
-			dec_mm_counter(mm, mm_counter(&folio->page));
+			dec_mm_counter(mm, mm_counter_folio(folio));
 		} else {
 			swp_entry_t entry;
 			pte_t swp_pte;
-- 
2.27.0