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[v3,05/13] mm: Add __HAVE_ARCH_PUD_SAME similar to __HAVE_ARCH_P4D_SAME

Message ID 20230706085819.827761-6-aneesh.kumar@linux.ibm.com (mailing list archive)
State New
Headers show
Series Add support for DAX vmemmap optimization for ppc64 | expand

Commit Message

Aneesh Kumar K.V July 6, 2023, 8:58 a.m. UTC 
This helps architectures to override pmd_same and pud_same independently.

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
---
 include/linux/pgtable.h | 2 ++
 1 file changed, 2 insertions(+)
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Patch

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 6fd9b2831338..91def34f7784 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -693,7 +693,9 @@  static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
 {
 	return pmd_val(pmd_a) == pmd_val(pmd_b);
 }
+#endif
 
+#ifndef __HAVE_ARCH_PUD_SAME
 static inline int pud_same(pud_t pud_a, pud_t pud_b)
 {
 	return pud_val(pud_a) == pud_val(pud_b);