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authorAnshuman Khandual <anshuman.khandual@arm.com>2026-02-27 04:03:00 +0000
committerAndrew Morton <akpm@linux-foundation.org>2026-04-05 13:53:11 -0700
commit3d56d7317b271a1a5030ebb135c58aedc4c0fd36 (patch)
tree0c2b27ff032aead2f41bb1dc6bb51832acea6df1 /include/linux
parent4d267106ab013aa7f21aeab0a5272ac952f31d22 (diff)
mm: replace READ_ONCE() in pud_trans_unstable()
Replace READ_ONCE() with the existing standard page table accessor for PUD aka pudp_get() in pud_trans_unstable(). This does not create any functional change for platforms that do not override pudp_get(), which still defaults to READ_ONCE(). Link: https://lkml.kernel.org/r/20260227040300.2091901-1-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: David Hildenbrand (Arm) <david@kernel.org> Acked-by: SeongJae Park <sj@kernel.org> Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com> Cc: Mike Rapoport <rppt@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/pgtable.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 776993d4567b..d2767a4c027b 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -2004,7 +2004,7 @@ static inline int pud_trans_unstable(pud_t *pud)
{
#if defined(CONFIG_TRANSPARENT_HUGEPAGE) && \
defined(CONFIG_HAVE_ARCH_TRANSPARENT_HUGEPAGE_PUD)
- pud_t pudval = READ_ONCE(*pud);
+ pud_t pudval = pudp_get(pud);
if (pud_none(pudval) || pud_trans_huge(pudval))
return 1;