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-rw-r--r--include/linux/pgtable.h30
1 files changed, 29 insertions, 1 deletions
diff --git a/include/linux/pgtable.h b/include/linux/pgtable.h
index af7639c3b0a3..f6d0e3513948 100644
--- a/include/linux/pgtable.h
+++ b/include/linux/pgtable.h
@@ -184,6 +184,13 @@ static inline int pmd_young(pmd_t pmd)
}
#endif
+#ifndef pmd_dirty
+static inline int pmd_dirty(pmd_t pmd)
+{
+ return 0;
+}
+#endif
+
/*
* A facility to provide lazy MMU batching. This allows PTE updates and
* page invalidations to be delayed until a call to leave lazy MMU mode
@@ -292,6 +299,27 @@ static inline pmd_t pmdp_get(pmd_t *pmdp)
}
#endif
+#ifndef pudp_get
+static inline pud_t pudp_get(pud_t *pudp)
+{
+ return READ_ONCE(*pudp);
+}
+#endif
+
+#ifndef p4dp_get
+static inline p4d_t p4dp_get(p4d_t *p4dp)
+{
+ return READ_ONCE(*p4dp);
+}
+#endif
+
+#ifndef pgdp_get
+static inline pgd_t pgdp_get(pgd_t *pgdp)
+{
+ return READ_ONCE(*pgdp);
+}
+#endif
+
#ifndef __HAVE_ARCH_PTEP_TEST_AND_CLEAR_YOUNG
static inline int ptep_test_and_clear_young(struct vm_area_struct *vma,
unsigned long address,
@@ -375,7 +403,7 @@ static inline bool arch_has_hw_nonleaf_pmd_young(void)
*/
static inline bool arch_has_hw_pte_young(void)
{
- return false;
+ return IS_ENABLED(CONFIG_ARCH_HAS_HW_PTE_YOUNG);
}
#endif