diff mbox series

[v8,13/31] mm/filemap: Add folio_offset and folio_file_offset

Message ID 20210430180740.2707166-14-willy@infradead.org (mailing list archive)
State New
Headers show
Series Memory Folios | expand

Commit Message

Matthew Wilcox April 30, 2021, 6:07 p.m. UTC
These are just wrappers around their page counterpart.

Signed-off-by: Matthew Wilcox (Oracle) <willy@infradead.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Acked-by: Jeff Layton <jlayton@kernel.org>
---
 include/linux/pagemap.h | 10 ++++++++++
 1 file changed, 10 insertions(+)
diff mbox series

Patch

diff --git a/include/linux/pagemap.h b/include/linux/pagemap.h
index 5301131cc5b3..3d4ca4fd7b96 100644
--- a/include/linux/pagemap.h
+++ b/include/linux/pagemap.h
@@ -634,6 +634,16 @@  static inline loff_t page_file_offset(struct page *page)
 	return ((loff_t)page_index(page)) << PAGE_SHIFT;
 }
 
+static inline loff_t folio_offset(struct folio *folio)
+{
+	return page_offset(&folio->page);
+}
+
+static inline loff_t folio_file_offset(struct folio *folio)
+{
+	return page_file_offset(&folio->page);
+}
+
 extern pgoff_t linear_hugepage_index(struct vm_area_struct *vma,
 				     unsigned long address);