diff --git a/include/linux/swap.h b/include/linux/swap.h
index 9d7ec92874d3..f5eb65656721 100644
--- a/include/linux/swap.h
+++ b/include/linux/swap.h
@@ -217,7 +217,9 @@ enum {
 	SWP_AREA_DISCARD = (1 << 9),	/* single-time swap area discards */
 	SWP_PAGE_DISCARD = (1 << 10),	/* freed swap page-cluster discards */
 	SWP_STABLE_WRITES = (1 << 11),	/* no overwrite PG_writeback pages */
-	SWP_SYNCHRONOUS_IO = (1 << 12),	/* synchronous IO is efficient */
+	__SWP_READ_SYNCHRONOUS_IO = (1 << 12),	/* synchronous read IO is efficient */
+	__SWP_WRITE_SYNCHRONOUS_IO = (1 << 13),	/* synchronous write IO is efficient */
+	SWP_SYNCHRONOUS_IO = (__SWP_READ_SYNCHRONOUS_IO | __SWP_WRITE_SYNCHRONOUS_IO),
 					/* add others here before... */
 	SWP_SCANNING	= (1 << 14),	/* refcount in scan_swap_map */
 };
diff --git a/mm/page_io.c b/mm/page_io.c
index 01749b99fb54..3880256fb1fd 100644
--- a/mm/page_io.c
+++ b/mm/page_io.c
@@ -463,10 +463,10 @@ void __swap_writepage(struct folio *folio, struct writeback_control *wbc)
 		swap_writepage_fs(folio, wbc);
 	/*
 	 * ->flags can be updated non-atomicially (scan_swap_map_slots),
-	 * but that will never affect SWP_SYNCHRONOUS_IO, so the data_race
+	 * but that will never affect __SWP_WRITE_SYNCHRONOUS_IO, so the data_race
 	 * is safe.
 	 */
-	else if (data_race(sis->flags & SWP_SYNCHRONOUS_IO))
+	else if (data_race(sis->flags & __SWP_WRITE_SYNCHRONOUS_IO))
 		swap_writepage_bdev_sync(folio, wbc, sis);
 	else
 		swap_writepage_bdev_async(folio, wbc, sis);