1 files changed, 30 insertions, 0 deletions
diff --git a/block/blk-wbt.h b/block/blk-wbt.h
new file mode 100644
index 000000000..6e39da172
--- /dev/null
+++ b/block/blk-wbt.h
@@ -0,0 +1,30 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef WB_THROTTLE_H
+#define WB_THROTTLE_H
+
+#ifdef CONFIG_BLK_WBT
+
+void wbt_init_enable_default(struct gendisk *disk);
+void wbt_disable_default(struct gendisk *disk);
+void wbt_enable_default(struct gendisk *disk);
+
+u64 wbt_get_min_lat(struct request_queue *q);
+bool wbt_disabled(struct request_queue *q);
+int wbt_set_lat(struct gendisk *disk, s64 val);
+
+#else
+
+static inline void wbt_init_enable_default(struct gendisk *disk)
+{
+}
+
+static inline void wbt_disable_default(struct gendisk *disk)
+{
+}
+static inline void wbt_enable_default(struct gendisk *disk)
+{
+}
+
+#endif /* CONFIG_BLK_WBT */
+
+#endif