diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c
index d8ea7ed..587ac08 100644
--- a/fs/fs-writeback.c
+++ b/fs/fs-writeback.c
@@ -1546,12 +1546,15 @@
 		.range_cyclic	= 1,
 		.reason		= reason,
 	};
+	struct blk_plug plug;
 
+	blk_start_plug(&plug);
 	spin_lock(&wb->list_lock);
 	if (list_empty(&wb->b_io))
 		queue_io(wb, &work);
 	__writeback_inodes_wb(wb, &work);
 	spin_unlock(&wb->list_lock);
+	blk_finish_plug(&plug);
 
 	return nr_pages - work.nr_pages;
 }
@@ -1579,10 +1582,12 @@
 	unsigned long oldest_jif;
 	struct inode *inode;
 	long progress;
+	struct blk_plug plug;
 
 	oldest_jif = jiffies;
 	work->older_than_this = &oldest_jif;
 
+	blk_start_plug(&plug);
 	spin_lock(&wb->list_lock);
 	for (;;) {
 		/*
@@ -1662,6 +1667,7 @@
 		}
 	}
 	spin_unlock(&wb->list_lock);
+	blk_finish_plug(&plug);
 
 	return nr_pages - work->nr_pages;
 }