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@xxxxxxxxxx>
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@xxxxxxxxxx
Signed-off-by: David Hildenbrand <david@xxxxxxxxxx>
Reviewed-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Cc: Alexander Gordeev <agordeev@xxxxxxxxxxxxx>
Cc: Christian Borntraeger <borntraeger@xxxxxxxxxxxxx>
Cc: Claudio Imbrenda <imbrenda@xxxxxxxxxxxxx>
Cc: Heiko Carstens <hca@xxxxxxxxxxxxx>
Cc: Janosch Frank <frankja@xxxxxxxxxxxxx>
Cc: Sven Schnelle <svens@xxxxxxxxxxxxx>
Cc: Vasily Gorbik <gor@xxxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
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@xxxxxxxxxx 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
