blk-throttle: add interface to configure idle time threshold

[karo-tx-linux.git] / block / blk.h

diff --git a/block/blk.h b/block/blk.h
index d1ea4bd9b9a3f8f24eba17f4e35fbddaebd23c7d..3ac833ec2adb46b7333818710094b115a73359ad 100644 (file)
--- a/block/blk.h
+++ b/block/blk.h
@@ -319,10 +319,20 @@ static inline struct io_context *create_io_context(gfp_t gfp_mask, int node)
 extern void blk_throtl_drain(struct request_queue *q);
 extern int blk_throtl_init(struct request_queue *q);
 extern void blk_throtl_exit(struct request_queue *q);
+extern void blk_throtl_register_queue(struct request_queue *q);
 #else /* CONFIG_BLK_DEV_THROTTLING */
 static inline void blk_throtl_drain(struct request_queue *q) { }
 static inline int blk_throtl_init(struct request_queue *q) { return 0; }
 static inline void blk_throtl_exit(struct request_queue *q) { }
+static inline void blk_throtl_register_queue(struct request_queue *q) { }
 #endif /* CONFIG_BLK_DEV_THROTTLING */
+#ifdef CONFIG_BLK_DEV_THROTTLING_LOW
+extern ssize_t blk_throtl_sample_time_show(struct request_queue *q, char *page);
+extern ssize_t blk_throtl_sample_time_store(struct request_queue *q,
+       const char *page, size_t count);
+extern void blk_throtl_bio_endio(struct bio *bio);
+#else
+static inline void blk_throtl_bio_endio(struct bio *bio) { }
+#endif
 
 #endif /* BLK_INTERNAL_H */