Commit b4e53984 authored by Anshuman Khandual's avatar Anshuman Khandual Committed by Andrew Morton
Browse files

mm/dirty: replace READ_ONCE() with pudp_get() 

Replace READ_ONCE() with a standard page table accessor i.e pudp_get() that
anyways defaults into READ_ONCE() in cases where platform does not override

Link: https://lkml.kernel.org/r/20251006055214.1845342-1-anshuman.khandual@arm.com


Signed-off-by: default avatarAnshuman Khandual <anshuman.khandual@arm.com>
Acked-by: default avatarDavid Hildenbrand <david@redhat.com>
Reviewed-by: default avatarDev Jain <dev.jain@arm.com>
Reviewed-by: default avatarOscar Salvador <osalvador@suse.de>
Cc: Lance Yang <lance.yang@linux.dev>
Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
parent 9ac09bb9

mm/mapping_dirty_helpers.c

+1 −1
Original line number Diff line number Diff line
@@ -149,7 +149,7 @@ static int wp_clean_pud_entry(pud_t *pud, unsigned long addr, unsigned long end, 
			      struct mm_walk *walk)

{

#ifdef CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD

	pud_t pudval = READ_ONCE(*pud);

	pud_t pudval = pudp_get(pud);



	/* Do not split a huge pud */

	if (pud_trans_huge(pudval)) {