diff mbox series

[v6,05/13] mm: Add pud_same similar to __HAVE_ARCH_P4D_SAME

Message ID 20230724190759.483013-6-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 24, 2023, 7:07 p.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 | 3 +++
 1 file changed, 3 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index 124427ece520..0af8bc4ce258 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -699,11 +699,14 @@  static inline int pmd_same(pmd_t pmd_a, pmd_t pmd_b)
 {
 	return pmd_val(pmd_a) == pmd_val(pmd_b);
 }
+#endif
 
+#ifndef pud_same
 static inline int pud_same(pud_t pud_a, pud_t pud_b)
 {
 	return pud_val(pud_a) == pud_val(pud_b);
 }
+#define pud_same pud_same
 #endif
 
 #ifndef __HAVE_ARCH_P4D_SAME