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-rw-r--r--block/blk-ioprio.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/block/blk-ioprio.h b/block/blk-ioprio.h
new file mode 100644
index 000000000..b6afb8e80
--- /dev/null
+++ b/block/blk-ioprio.h
@@ -0,0 +1,28 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+
+#ifndef _BLK_IOPRIO_H_
+#define _BLK_IOPRIO_H_
+
+#include <linux/kconfig.h>
+
+struct request_queue;
+struct bio;
+
+#ifdef CONFIG_BLK_CGROUP_IOPRIO
+int blk_ioprio_init(struct gendisk *disk);
+void blk_ioprio_exit(struct gendisk *disk);
+void blkcg_set_ioprio(struct bio *bio);
+#else
+static inline int blk_ioprio_init(struct gendisk *disk)
+{
+ return 0;
+}
+static inline void blk_ioprio_exit(struct gendisk *disk)
+{
+}
+static inline void blkcg_set_ioprio(struct bio *bio)
+{
+}
+#endif
+
+#endif /* _BLK_IOPRIO_H_ */