+ mm-use-proper-pte-accessor-in-move_ptes.patch added to mm-new branch

+ mm-use-proper-pte-accessor-in-move_ptes.patch added to mm-new branch

[Andrew Morton]

The patch titled
     Subject: mm: use proper PTE accessor in move_ptes()
has been added to the -mm mm-new branch.  Its filename is
     mm-use-proper-pte-accessor-in-move_ptes.patch

This patch will shortly appear at
     https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-use-proper-pte-accessor-in-move_ptes.patch

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

Note, mm-new is a provisional staging ground for work-in-progress
patches, and acceptance into mm-new is a notification for others take
notice and to finish up reviews.  Please do not hesitate to respond to
review feedback and post updated versions to replace or incrementally
fixup patches in mm-new.

The mm-new branch of mm.git is not included in linux-next

If a few days of testing in mm-new is successful, the patch will me moved
into mm.git's mm-unstable branch, which is included in linux-next

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------------------------------------------------------
From: Alexander Gordeev <agordeev@linux.ibm.com>
Subject: mm: use proper PTE accessor in move_ptes()
Date: Mon, 20 Jul 2026 16:16:33 +0200

Follow the pattern established by commit c33c794828f2 ("mm: ptep_get()
conversion") and use the proper PTE accessor instead of a direct pointer
dereference.

Link: https://lore.kernel.org/20260720141633.501799-1-agordeev@linux.ibm.com
Fixes: b36b701bbcd9 ("mm: expose abnormal new_pte during move_ptes")
Signed-off-by: Alexander Gordeev <agordeev@linux.ibm.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/mremap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/mremap.c~mm-use-proper-pte-accessor-in-move_ptes
+++ a/mm/mremap.c
@@ -264,7 +264,7 @@ static int move_ptes(struct pagetable_mo
 
 	for (; old_addr < old_end; old_ptep += nr_ptes, old_addr += nr_ptes * PAGE_SIZE,
 		new_ptep += nr_ptes, new_addr += nr_ptes * PAGE_SIZE) {
-		VM_WARN_ON_ONCE(!pte_none(*new_ptep));
+		VM_WARN_ON_ONCE(!pte_none(ptep_get(new_ptep)));
 
 		nr_ptes = 1;
 		max_nr_ptes = (old_end - old_addr) >> PAGE_SHIFT;
_

Patches currently in -mm which might be from agordeev@linux.ibm.com are

mm-use-proper-pte-accessor-in-move_ptes.patch