Re: [PATCH v10 02/33] mm: Add folio_pgdat and folio_zone
From: Vlastimil Babka <hidden>
Date: 2021-05-14 10:35:35
Also in:
linux-fsdevel, lkml
On 5/11/21 11:47 PM, Matthew Wilcox (Oracle) wrote:
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>
Acked-by: Vlastimil Babka <redacted>
quoted hunk ↗ jump to hunk
--- include/linux/mm.h | 10 ++++++++++ 1 file changed, 10 insertions(+)diff --git a/include/linux/mm.h b/include/linux/mm.h index b29c86824e6b..a55c2c0628b6 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) {