diff --git a/drivers/md/dm.c b/drivers/md/dm.c
index 469aefecfe0ba9a1ce4a743e1aaf9d79da7973d7..5c73d4f440826b9dc02ff5197d45c647780474ac 100644
--- a/drivers/md/dm.c
+++ b/drivers/md/dm.c
@@ -1472,6 +1472,10 @@ static int __send_empty_flush(struct clone_info *ci)
 	unsigned target_nr = 0;
 	struct dm_target *ti;
 
+	if ((ci->io->orig_bio->bi_opf & (REQ_IDLE | REQ_SYNC)) ==
+	    (REQ_IDLE | REQ_SYNC))
+		ci->bio->bi_opf |= REQ_IDLE;
+
 	BUG_ON(bio_has_data(ci->bio));
 	while ((ti = dm_table_get_target(ci->map, target_nr++)))
 		__send_duplicate_bios(ci, ti, ti->num_flush_bios, NULL);