diff --git a/drivers/md/dm-writecache.c b/drivers/md/dm-writecache.c
index 28bb6890fcf4..ddd368e0491d 100644
--- a/drivers/md/dm-writecache.c
+++ b/drivers/md/dm-writecache.c
@@ -1297,8 +1297,12 @@ static int writecache_map(struct dm_target *ti, struct bio *bio)
 			writecache_flush(wc);
 			if (writecache_has_error(wc))
 				goto unlock_error;
+			if (unlikely(wc->cleaner))
+				goto unlock_remap_origin;
 			goto unlock_submit;
 		} else {
+			if (dm_bio_get_target_bio_nr(bio))
+				goto unlock_remap_origin;
 			writecache_offload_bio(wc, bio);
 			goto unlock_return;
 		}
@@ -1377,7 +1381,7 @@ read_next_block:
 			}
 			e = writecache_pop_from_freelist(wc, (sector_t)-1);
 			if (unlikely(!e)) {
-				if (!found_entry) {
+				if (!WC_MODE_PMEM(wc) && !found_entry) {
 direct_write:
 					e = writecache_find_entry(wc, bio->bi_iter.bi_sector, WFE_RETURN_FOLLOWING);
 					if (e) {
@@ -2484,7 +2488,7 @@ overflow:
 		goto bad;
 	}
 
-	ti->num_flush_bios = 1;
+	ti->num_flush_bios = WC_MODE_PMEM(wc) ? 1 : 2;
 	ti->flush_supported = true;
 	ti->num_discard_bios = 1;