diff mbox series

[v13,01/18] mm: Add folio_nid()

Message ID 20210712194551.91920-2-willy@infradead.org (mailing list archive)
State New
Headers show
Series Convert memcg to folios | expand

Commit Message

Matthew Wilcox July 12, 2021, 7:45 p.m. UTC 
This is the folio equivalent of page_to_nid().

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
---
 include/linux/mm.h | 5 +++++
 1 file changed, 5 insertions(+)
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Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index a856c078e040..80f27eb151ba 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1427,6 +1427,11 @@  static inline int page_to_nid(const struct page *page)
 }
 #endif
 
+static inline int folio_nid(const struct folio *folio)
+{
+	return page_to_nid(&folio->page);
+}
+
 #ifdef CONFIG_NUMA_BALANCING
 static inline int cpu_pid_to_cpupid(int cpu, int pid)
 {