[PATCH v2 02/27] mm: Add folio_pgdat
From: "Matthew Wilcox (Oracle)" <willy@infradead.org>
Date: 2021-01-18 17:20:56
Also in:
linux-fsdevel, lkml
Subsystem:
memory management - core, the rest · Maintainers:
Andrew Morton, David Hildenbrand, Linus Torvalds
This is just a convenience wrapper for callers with folios; pgdat can be reached from tail pages as well as head pages. Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org> --- include/linux/mm.h | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h
index 0858af6479a3..5b071c226fd6 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h@@ -1500,6 +1500,11 @@ static inline pg_data_t *page_pgdat(const struct page *page) return NODE_DATA(page_to_nid(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) {
--
2.29.2