[PATCH v1 2/3] mm/gup: convert to arch_make_folio_accessible()

From: David Hildenbrand
Date: Mon Jul 29 2024 - 14:40:30 EST


Let's use arch_make_folio_accessible() instead so we can get rid of
arch_make_page_accessible().

Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
---
mm/gup.c | 8 +++++---
1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/mm/gup.c b/mm/gup.c
index 120740cf5a348..3e8484c893aa8 100644
--- a/mm/gup.c
+++ b/mm/gup.c
@@ -819,6 +819,7 @@ static struct page *follow_page_pte(struct vm_area_struct *vma,
struct dev_pagemap **pgmap)
{
struct mm_struct *mm = vma->vm_mm;
+ struct folio *folio;
struct page *page;
spinlock_t *ptl;
pte_t *ptep, pte;
@@ -876,6 +877,7 @@ static struct page *follow_page_pte(struct vm_area_struct *vma,
goto out;
}
}
+ folio = page_folio(page);

if (!pte_write(pte) && gup_must_unshare(vma, flags, page)) {
page = ERR_PTR(-EMLINK);
@@ -886,7 +888,7 @@ static struct page *follow_page_pte(struct vm_area_struct *vma,
!PageAnonExclusive(page), page);

/* try_grab_folio() does nothing unless FOLL_GET or FOLL_PIN is set. */
- ret = try_grab_folio(page_folio(page), 1, flags);
+ ret = try_grab_folio(folio, 1, flags);
if (unlikely(ret)) {
page = ERR_PTR(ret);
goto out;
@@ -898,7 +900,7 @@ static struct page *follow_page_pte(struct vm_area_struct *vma,
* Documentation/core-api/pin_user_pages.rst for details.
*/
if (flags & FOLL_PIN) {
- ret = arch_make_page_accessible(page);
+ ret = arch_make_folio_accessible(folio);
if (ret) {
unpin_user_page(page);
page = ERR_PTR(ret);
@@ -2919,7 +2921,7 @@ static int gup_fast_pte_range(pmd_t pmd, pmd_t *pmdp, unsigned long addr,
* details.
*/
if (flags & FOLL_PIN) {
- ret = arch_make_page_accessible(page);
+ ret = arch_make_folio_accessible(folio);
if (ret) {
gup_put_folio(folio, 1, flags);
goto pte_unmap;
--
2.45.2