mm/page_ext: move functions around for minor cleanups to page_ext

[platform/kernel/linux-starfive.git] / mm / internal.h

diff --git a/mm/internal.h b/mm/internal.h
index a7d9e98..483add0 100644 (file)
--- a/mm/internal.h
+++ b/mm/internal.h
@@ -62,6 +62,12 @@ void page_writeback_init(void);
 #define FOLIO_PAGES_MAPPED     (COMPOUND_MAPPED - 1)
 
 /*
+ * Flags passed to __show_mem() and show_free_areas() to suppress output in
+ * various contexts.
+ */
+#define SHOW_MEM_FILTER_NODES          (0x0001u)       /* disallowed nodes */
+
+/*
  * How many individual pages have an elevated _mapcount.  Excludes
  * the folio's entire_mapcount.
  */
@@ -170,6 +176,17 @@ static inline void set_page_refcounted(struct page *page)
        set_page_count(page, 1);
 }
 
+/*
+ * Return true if a folio needs ->release_folio() calling upon it.
+ */
+static inline bool folio_needs_release(struct folio *folio)
+{
+       struct address_space *mapping = folio_mapping(folio);
+
+       return folio_has_private(folio) ||
+               (mapping && mapping_release_always(mapping));
+}
+
 extern unsigned long highest_memmap_pfn;
 
 /*