diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index e4504299f4a5..271cf2150ba0 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -739,22 +739,22 @@ static long wb_writeback(struct bdi_writeback *wb,
 		wrote += write_chunk - wbc.nr_to_write;
 
 		/*
-		 * If we consumed everything, see if we have more
+		 * Did we write something? Try for more
+		 *
+		 * Dirty inodes are moved to b_io for writeback in batches.
+		 * The completion of the current batch does not necessarily
+		 * mean the overall work is done. So we keep looping as long
+		 * as made some progress on cleaning pages or inodes.
 		 */
-		if (wbc.nr_to_write <= 0)
+		if (wbc.nr_to_write < write_chunk)
 			continue;
 		if (wbc.inodes_written)
 			continue;
 		/*
-		 * Didn't write everything and we don't have more IO, bail
+		 * No more inodes for IO, bail
 		 */
 		if (!wbc.more_io)
 			break;
-		/*
-		 * Did we write something? Try for more
-		 */
-		if (wbc.nr_to_write < write_chunk)
-			continue;
 		/*
 		 * Nothing written. Wait for some inode to
 		 * become available for writeback. Otherwise