diff mbox series

[v3,01/18] mm: Add folio_nid()

Message ID 20210630040034.1155892-2-willy@infradead.org (mailing list archive)
State New
Headers show
Series Folio conversion of memcg | expand

Commit Message

Matthew Wilcox June 30, 2021, 4 a.m. UTC 
This is the folio equivalent of page_to_nid().

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

Comments

Christoph Hellwig July 1, 2021, 6:56 a.m. UTC | #1 
Looks good,

Reviewed-by: Christoph Hellwig <hch@lst.de>
diff mbox series

Patch

diff --git a/include/linux/mm.h b/include/linux/mm.h
index 7ad3c8a115ae..48d2ccd9f8c3 100644
--- a/include/linux/mm.h
+++ b/include/linux/mm.h
@@ -1429,6 +1429,11 @@  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)
 {