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authorAnshuman Khandual <anshuman.khandual@arm.com>2025-10-07 07:31:00 +0100
committerAndrew Morton <akpm@linux-foundation.org>2025-11-16 17:27:56 -0800
commitc0efdb373c3aaacb32db59cadb0710cac13e44ae (patch)
treebbcef6d33668043fa8d5cd74542bf3a17d5efbcd /mm/memory.c
parentbda7bf06840d4eb133abefa5a2fd75544277bd86 (diff)
mm: replace READ_ONCE() with standard page table accessors
Replace all READ_ONCE() with a standard page table accessors i.e pxdp_get() that defaults into READ_ONCE() in cases where platform does not override. Link: https://lkml.kernel.org/r/20251007063100.2396936-1-anshuman.khandual@arm.com Signed-off-by: Anshuman Khandual <anshuman.khandual@arm.com> Acked-by: David Hildenbrand <david@redhat.com> Reviewed-by: Lance Yang <lance.yang@linux.dev> Reviewed-by: Wei Yang <richard.weiyang@gmail.com> Reviewed-by: Dev Jain <dev.jain@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/memory.c')
-rw-r--r--mm/memory.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/mm/memory.c b/mm/memory.c
index 61748b762876..f13b20b702f6 100644
--- a/mm/memory.c
+++ b/mm/memory.c
@@ -6690,12 +6690,12 @@ retry:
goto out;
p4dp = p4d_offset(pgdp, address);
- p4d = READ_ONCE(*p4dp);
+ p4d = p4dp_get(p4dp);
if (p4d_none(p4d) || unlikely(p4d_bad(p4d)))
goto out;
pudp = pud_offset(p4dp, address);
- pud = READ_ONCE(*pudp);
+ pud = pudp_get(pudp);
if (pud_none(pud))
goto out;
if (pud_leaf(pud)) {