From: Anshuman Khandual Date: Fri, 27 Feb 2026 06:12:04 +0000 (+0000) Subject: mm/debug_vm_pgtable: replace WRITE_ONCE() with pxd_clear() X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=4d267106ab013aa7f21aeab0a5272ac952f31d22;p=thirdparty%2Flinux.git mm/debug_vm_pgtable: replace WRITE_ONCE() with pxd_clear() Replace WRITE_ONCE() with generic pxd_clear() to clear out the page table entries as required. Besides this does not cause any functional change as well. Link: https://lkml.kernel.org/r/20260227061204.2215395-1-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual Suggested-by: Ryan Roberts Acked-by: David Hildenbrand (Arm) Ackeed-by: SeongJae Park Cc: Ryan Roberts Signed-off-by: Andrew Morton --- diff --git a/mm/debug_vm_pgtable.c b/mm/debug_vm_pgtable.c index 83cf07269f134..23dc3ee095619 100644 --- a/mm/debug_vm_pgtable.c +++ b/mm/debug_vm_pgtable.c @@ -445,7 +445,7 @@ static void __init pmd_huge_tests(struct pgtable_debug_args *args) * X86 defined pmd_set_huge() verifies that the given * PMD is not a populated non-leaf entry. */ - WRITE_ONCE(*args->pmdp, __pmd(0)); + pmd_clear(args->pmdp); WARN_ON(!pmd_set_huge(args->pmdp, __pfn_to_phys(args->fixed_pmd_pfn), args->page_prot)); WARN_ON(!pmd_clear_huge(args->pmdp)); pmd = pmdp_get(args->pmdp); @@ -465,7 +465,7 @@ static void __init pud_huge_tests(struct pgtable_debug_args *args) * X86 defined pud_set_huge() verifies that the given * PUD is not a populated non-leaf entry. */ - WRITE_ONCE(*args->pudp, __pud(0)); + pud_clear(args->pudp); WARN_ON(!pud_set_huge(args->pudp, __pfn_to_phys(args->fixed_pud_pfn), args->page_prot)); WARN_ON(!pud_clear_huge(args->pudp)); pud = pudp_get(args->pudp);