[PATCH v1] mm:page-writeback:use folio_next_index() helper in writeback_iter()

[Yuesong Li <liyuesong@xxxxxxxx>]

Simplify code pattern of 'folio->index + folio_nr_pages(folio)' by using
the existing helper folio_next_index().

Signed-off-by: Yuesong Li <liyuesong@xxxxxxxx>
---
 mm/page-writeback.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/page-writeback.c b/mm/page-writeback.c
index 7a04cb1918fd..fcd4c1439cb9 100644
--- a/mm/page-writeback.c
+++ b/mm/page-writeback.c
@@ -2612,7 +2612,7 @@ struct folio *writeback_iter(struct address_space *mapping,
 
 done:
 	if (wbc->range_cyclic)
-		mapping->writeback_index = folio->index + folio_nr_pages(folio);
+		mapping->writeback_index = folio_next_index(folio);
 	folio_batch_release(&wbc->fbatch);
 	return NULL;
 }
-- 
2.34.1