On 24/03/2020 16:25, Johannes Thumshirn wrote:

+static inline bool bio_can_zone_append(struct bio *bio, unsigned len)
+{
+	struct request_queue *q = bio->bi_disk->queue;
+	unsigned int max_append_sectors = queue_max_zone_append_sectors(q);
+
+	if (WARN_ON_ONCE(!max_append_sectors))
+		return false;
+
+	if (((bio->bi_iter.bi_size + len) >> 9) > max_append_sectors)
+		return false;
+
+	if (bio->bi_vcnt >= q->limits.max_segments)
+		return false;
+
+	return true;
+}

That return values need to be reversed as well...