mm: untangle config dependencies for demote-on-reclaim

[linux-2.6-microblaze.git] / include / linux / migrate.h

diff --git a/include/linux/migrate.h b/include/linux/migrate.h
index 90e75d5..2707bfd 100644 (file)
--- a/include/linux/migrate.h
+++ b/include/linux/migrate.h
@@ -47,17 +47,8 @@ void folio_migrate_copy(struct folio *newfolio, struct folio *folio);
 int folio_migrate_mapping(struct address_space *mapping,
                struct folio *newfolio, struct folio *folio, int extra_count);
 
-extern bool numa_demotion_enabled;
-extern void migrate_on_reclaim_init(void);
-#ifdef CONFIG_HOTPLUG_CPU
-extern void set_migration_target_nodes(void);
-#else
-static inline void set_migration_target_nodes(void) {}
-#endif
 #else
 
-static inline void set_migration_target_nodes(void) {}
-
 static inline void putback_movable_pages(struct list_head *l) {}
 static inline int migrate_pages(struct list_head *l, new_page_t new,
                free_page_t free, unsigned long private, enum migrate_mode mode,
@@ -82,9 +73,23 @@ static inline int migrate_huge_page_move_mapping(struct address_space *mapping,
        return -ENOSYS;
 }
 
-#define numa_demotion_enabled  false
 #endif /* CONFIG_MIGRATION */
 
+#if defined(CONFIG_MIGRATION) && defined(CONFIG_NUMA)
+extern void set_migration_target_nodes(void);
+extern void migrate_on_reclaim_init(void);
+extern bool numa_demotion_enabled;
+extern int next_demotion_node(int node);
+#else
+static inline void set_migration_target_nodes(void) {}
+static inline void migrate_on_reclaim_init(void) {}
+static inline int next_demotion_node(int node)
+{
+        return NUMA_NO_NODE;
+}
+#define numa_demotion_enabled  false
+#endif
+
 #ifdef CONFIG_COMPACTION
 extern int PageMovable(struct page *page);
 extern void __SetPageMovable(struct page *page, struct address_space *mapping);
@@ -172,15 +177,6 @@ struct migrate_vma {
 int migrate_vma_setup(struct migrate_vma *args);
 void migrate_vma_pages(struct migrate_vma *migrate);
 void migrate_vma_finalize(struct migrate_vma *migrate);
-int next_demotion_node(int node);
-
-#else /* CONFIG_MIGRATION disabled: */
-
-static inline int next_demotion_node(int node)
-{
-       return NUMA_NO_NODE;
-}
-
 #endif /* CONFIG_MIGRATION */
 
 #endif /* _LINUX_MIGRATE_H */