| From | "Matthew Wilcox (Oracle)" <> | Subject | [PATCH v7 03/28] mm: Add folio_pgdat and folio_zone | Date | Fri, 9 Apr 2021 19:50:40 +0100 |
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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@infradead.org> Reviewed-by: Zi Yan <ziy@nvidia.com> Reviewed-by: Christoph Hellwig <hch@lst.de> Acked-by: Jeff Layton <jlayton@kernel.org> --- include/linux/mm.h | 10 ++++++++++ 1 file changed, 10 insertions(+)
diff --git a/include/linux/mm.h b/include/linux/mm.h index 4ece80aa8d05..4c98b52613b7 100644 --- a/include/linux/mm.h +++ b/include/linux/mm.h @@ -1560,6 +1560,16 @@ 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
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