[merged mm-stable] mm-debug_vm_pgtable-add-_mkwrite_novma-tests.patch removed from -mm tree

[merged mm-stable] mm-debug_vm_pgtable-add-_mkwrite_novma-tests.patch removed from -mm tree

[Andrew Morton]

The quilt patch titled
     Subject: mm/debug_vm_pgtable: add [pte|pmd]_mkwrite_novma() tests
has been removed from the -mm tree.  Its filename was
     mm-debug_vm_pgtable-add-_mkwrite_novma-tests.patch

This patch was dropped because it was merged into the mm-stable branch
of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

------------------------------------------------------
From: Anshuman Khandual <anshuman.khandual@arm.com>
Subject: mm/debug_vm_pgtable: add [pte|pmd]_mkwrite_novma() tests
Date: Wed, 22 Oct 2025 04:29:51 +0100

Add some [pte|pmd]_mkwrite_novma() relevant tests.

[anshuman.khandual@arm.com: add a new test combination per Huang Ying]
  Link: https://lkml.kernel.org/r/20251024013137.136926-1-anshuman.khandual@arm.com
Link: https://lkml.kernel.org/r/20251022032951.3498553-1-anshuman.khandual@arm.com
Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com>
Suggested-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Huang Ying <ying.huang@linux.alibaba.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 mm/debug_vm_pgtable.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

--- a/mm/debug_vm_pgtable.c~mm-debug_vm_pgtable-add-_mkwrite_novma-tests
+++ a/mm/debug_vm_pgtable.c
@@ -102,6 +102,12 @@ static void __init pte_basic_tests(struc
 	WARN_ON(pte_write(pte_wrprotect(pte_mkwrite(pte, args->vma))));
 	WARN_ON(pte_dirty(pte_wrprotect(pte_mkclean(pte))));
 	WARN_ON(!pte_dirty(pte_wrprotect(pte_mkdirty(pte))));
+
+	WARN_ON(!pte_dirty(pte_mkwrite_novma(pte_mkdirty(pte))));
+	WARN_ON(pte_dirty(pte_mkwrite_novma(pte_mkclean(pte))));
+	WARN_ON(!pte_write(pte_mkdirty(pte_mkwrite_novma(pte))));
+	WARN_ON(!pte_write(pte_mkwrite_novma(pte_wrprotect(pte))));
+	WARN_ON(pte_write(pte_wrprotect(pte_mkwrite_novma(pte))));
 }
 
 static void __init pte_advanced_tests(struct pgtable_debug_args *args)
@@ -195,6 +201,13 @@ static void __init pmd_basic_tests(struc
 	WARN_ON(pmd_write(pmd_wrprotect(pmd_mkwrite(pmd, args->vma))));
 	WARN_ON(pmd_dirty(pmd_wrprotect(pmd_mkclean(pmd))));
 	WARN_ON(!pmd_dirty(pmd_wrprotect(pmd_mkdirty(pmd))));
+
+	WARN_ON(!pmd_dirty(pmd_mkwrite_novma(pmd_mkdirty(pmd))));
+	WARN_ON(pmd_dirty(pmd_mkwrite_novma(pmd_mkclean(pmd))));
+	WARN_ON(!pmd_write(pmd_mkdirty(pmd_mkwrite_novma(pmd))));
+	WARN_ON(!pmd_write(pmd_mkwrite_novma(pmd_wrprotect(pmd))));
+	WARN_ON(pmd_write(pmd_wrprotect(pmd_mkwrite_novma(pmd))));
+
 	/*
 	 * A huge page does not point to next level page table
 	 * entry. Hence this must qualify as pmd_bad().
_

Patches currently in -mm which might be from anshuman.khandual@arm.com are