1 files changed, 20 insertions, 0 deletions
diff --git a/mm/internal.h b/mm/internal.h
index e623c8103358..56a9a714709a 100644
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -1378,6 +1378,26 @@ void vunmap_range_noflush(unsigned long start, unsigned long end);
 
 void __vunmap_range_noflush(unsigned long start, unsigned long end);
 
+static inline bool vma_is_single_threaded_private(struct vm_area_struct *vma)
+{
+	if (vma->vm_flags & VM_SHARED)
+		return false;
+
+	return atomic_read(&vma->vm_mm->mm_users) == 1;
+}
+
+#ifdef CONFIG_NUMA_BALANCING
+bool folio_can_map_prot_numa(struct folio *folio, struct vm_area_struct *vma,
+		bool is_private_single_threaded);
+
+#else
+static inline bool folio_can_map_prot_numa(struct folio *folio,
+		struct vm_area_struct *vma, bool is_private_single_threaded)
+{
+	return false;
+}
+#endif
+
 int numa_migrate_check(struct folio *folio, struct vm_fault *vmf,
 		      unsigned long addr, int *flags, bool writable,
 		      int *last_cpupid);