+ mm-gup-convert-to-arch_make_folio_accessible.patch added to mm-unstable branch

[Andrew Morton <akpm@linux-foundation.org>]

The patch titled
     Subject: mm/gup: convert to arch_make_folio_accessible()
has been added to the -mm mm-unstable branch.  Its filename is
     mm-gup-convert-to-arch_make_folio_accessible.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-gup-convert-to-arch_make_folio_accessible.patch

This patch will later appear in the mm-unstable branch at
    git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

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------------------------------------------------------
From: David Hildenbrand <david@redhat.com>
Subject: mm/gup: convert to arch_make_folio_accessible()
Date: Mon, 29 Jul 2024 20:38:43 +0200

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

Link: https://lkml.kernel.org/r/20240729183844.388481-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Alexander Gordeev <agordeev@linux.ibm.com>
Cc: Christian Borntraeger <borntraeger@linux.ibm.com>
Cc: Claudio Imbrenda <imbrenda@linux.ibm.com>
Cc: Heiko Carstens <hca@linux.ibm.com>
Cc: Janosch Frank <frankja@linux.ibm.com>
Cc: Sven Schnelle <svens@linux.ibm.com>
Cc: Vasily Gorbik <gor@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/gup.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

--- a/mm/gup.c~mm-gup-convert-to-arch_make_folio_accessible
+++ a/mm/gup.c
@@ -819,6 +819,7 @@ static struct page *follow_page_pte(stru
 		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(stru
 			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(stru
 		       !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(stru
 	 * 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,
 		 * 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;
_

Patches currently in -mm which might be from david@redhat.com are

mm-let-pte_lockptr-consume-a-pte_t-pointer.patch
mm-hugetlb-fix-hugetlb-vs-core-mm-pt-locking.patch
mm-turn-use_split_pte_ptlocks-use_split_pte_ptlocks-into-kconfig-options.patch
mm-hugetlb-enforce-that-pmd-pt-sharing-has-split-pmd-pt-locks.patch
powerpc-8xx-document-and-enforce-that-split-pt-locks-are-not-used.patch
mm-simplify-arch_make_folio_accessible.patch
mm-gup-convert-to-arch_make_folio_accessible.patch
s390-uv-drop-arch_make_page_accessible.patch