These are just convenience wrappers for callers with folios; pgdat and
zone can be reached from tail pages as well as head pages.
Signed-off-by: Matthew Wilcox (Oracle) <willy@xxxxxxxxxxxxx>
Reviewed-by: Zi Yan <ziy@xxxxxxxxxx>
---
include/linux/mm.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 9b7e3fa12fd3..e176e9c9990f 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1544,6 +1544,16 @@ static inline pg_data_t *page_pgdat(const struct page *page)
return NODE_DATA(page_to_nid(page));
}
+static inline struct zone *folio_zone(const struct folio *folio)
+{
+ return page_zone(&folio->page);
+}
+
+static inline pg_data_t *folio_pgdat(const struct folio *folio)
+{
+ return page_pgdat(&folio->page);
+}
+
#ifdef SECTION_IN_PAGE_FLAGS
static inline void set_page_section(struct page *page, unsigned long section)
{
--
2.30.2
