This is the equivalent of PageMappingFlags and is needed for converting
mm/migrate.c to folios.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
---
include/linux/page-flags.h | 5 +++++
1 file changed, 5 insertions(+)
diff --git a/include/linux/page-flags.h b/include/linux/page-flags.h
index 9d8eeaa67d05..6bfa9918321d 100644
--- a/include/linux/page-flags.h
+++ b/include/linux/page-flags.h
@@ -641,6 +641,11 @@ __PAGEFLAG(Reported, reported, PF_NO_COMPOUND)
#define PAGE_MAPPING_KSM (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE)
#define PAGE_MAPPING_FLAGS (PAGE_MAPPING_ANON | PAGE_MAPPING_MOVABLE)
+static __always_inline bool folio_mapping_flags(struct folio *folio)
+{
+ return ((unsigned long)folio->mapping & PAGE_MAPPING_FLAGS) != 0;
+}
+
static __always_inline int PageMappingFlags(struct page *page)
{
return ((unsigned long)page->mapping & PAGE_MAPPING_FLAGS) != 0;
--
2.34.1
