1 files changed, 22 insertions, 0 deletions
diff --git a/block/blk-mq-debugfs-zoned.c b/block/blk-mq-debugfs-zoned.c
new file mode 100644
index 0000000000..a77b099c34
--- /dev/null
+++ b/block/blk-mq-debugfs-zoned.c
@@ -0,0 +1,22 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (C) 2017 Western Digital Corporation or its affiliates.
+ */
+
+#include <linux/blkdev.h>
+#include "blk-mq-debugfs.h"
+
+int queue_zone_wlock_show(void *data, struct seq_file *m)
+{
+	struct request_queue *q = data;
+	unsigned int i;
+
+	if (!q->disk->seq_zones_wlock)
+		return 0;
+
+	for (i = 0; i < q->disk->nr_zones; i++)
+		if (test_bit(i, q->disk->seq_zones_wlock))
+			seq_printf(m, "%u\n", i);
+
+	return 0;
+}