block: move blk_throtl prototypes to block/blk.h

[mirror_ubuntu-bionic-kernel.git] / block / blk.h

diff --git a/block/blk.h b/block/blk.h
index 20b900a377c9d8ba85ab8ba45f10c4deb64652f4..da247ba2aeaf805f8c828395c710ce5e0c086167 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -188,4 +188,17 @@ static inline int blk_do_io_stat(struct request *rq)
                (rq->cmd_flags & REQ_DISCARD));
 }
 
-#endif
+#ifdef CONFIG_BLK_DEV_THROTTLING
+extern int blk_throtl_bio(struct request_queue *q, struct bio **bio);
+extern int blk_throtl_init(struct request_queue *q);
+extern void blk_throtl_exit(struct request_queue *q);
+#else /* CONFIG_BLK_DEV_THROTTLING */
+static inline int blk_throtl_bio(struct request_queue *q, struct bio **bio)
+{
+       return 0;
+}
+static inline int blk_throtl_init(struct request_queue *q) { return 0; }
+static inline void blk_throtl_exit(struct request_queue *q) { }
+#endif /* CONFIG_BLK_DEV_THROTTLING */
+
+#endif /* BLK_INTERNAL_H */