1 files changed, 26 insertions, 0 deletions
diff --git a/include/linux/mm_types.h b/include/linux/mm_types.h
index 8ef84849953f..1da8fb04133f 100644
--- a/include/linux/mm_types.h
+++ b/include/linux/mm_types.h
@@ -1070,6 +1070,18 @@ static __always_inline void vma_flags_clear_all(vma_flags_t *flags)
 }
 
 /*
+ * Helper function which converts a vma_flags_t value to a legacy vm_flags_t
+ * value. This is only valid if the input flags value can be expressed in a
+ * system word.
+ *
+ * Will be removed once the conversion to VMA flags is complete.
+ */
+static __always_inline vm_flags_t vma_flags_to_legacy(vma_flags_t flags)
+{
+	return (vm_flags_t)flags.__vma_flags[0];
+}
+
+/*
  * Copy value to the first system word of VMA flags, non-atomically.
  *
  * IMPORTANT: This does not overwrite bytes past the first system word. The
@@ -1083,6 +1095,20 @@ static inline void vma_flags_overwrite_word(vma_flags_t *flags, unsigned long va
 }
 
 /*
+ * Helper function which converts a legacy vm_flags_t value to a vma_flags_t
+ * value.
+ *
+ * Will be removed once the conversion to VMA flags is complete.
+ */
+static __always_inline vma_flags_t legacy_to_vma_flags(vm_flags_t flags)
+{
+	vma_flags_t ret = EMPTY_VMA_FLAGS;
+
+	vma_flags_overwrite_word(&ret, flags);
+	return ret;
+}
+
+/*
  * Copy value to the first system word of VMA flags ONCE, non-atomically.
  *
  * IMPORTANT: This does not overwrite bytes past the first system word. The