| /* SPDX-License-Identifier: GPL-2.0 */ |
| #ifndef WB_THROTTLE_H |
| #define WB_THROTTLE_H |
| |
| #ifdef CONFIG_BLK_WBT |
| |
| int wbt_init(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); |
| void wbt_set_min_lat(struct request_queue *q, u64 val); |
| bool wbt_disabled(struct request_queue *); |
| |
| void wbt_set_write_cache(struct request_queue *, bool); |
| |
| u64 wbt_default_latency_nsec(struct request_queue *); |
| |
| #else |
| |
| static inline int wbt_init(struct gendisk *disk) |
| { |
| return -EINVAL; |
| } |
| static inline void wbt_disable_default(struct gendisk *disk) |
| { |
| } |
| static inline void wbt_enable_default(struct gendisk *disk) |
| { |
| } |
| static inline void wbt_set_write_cache(struct request_queue *q, bool wc) |
| { |
| } |
| static inline u64 wbt_get_min_lat(struct request_queue *q) |
| { |
| return 0; |
| } |
| static inline void wbt_set_min_lat(struct request_queue *q, u64 val) |
| { |
| } |
| static inline u64 wbt_default_latency_nsec(struct request_queue *q) |
| { |
| return 0; |
| } |
| static inline bool wbt_disabled(struct request_queue *q) |
| { |
| return true; |
| } |
| |
| #endif /* CONFIG_BLK_WBT */ |
| |
| #endif |
