1 /* SPDX-License-Identifier: GPL-2.0 */ 2 #ifndef WB_THROTTLE_H 3 #define WB_THROTTLE_H 4 5 #ifdef CONFIG_BLK_WBT 6 7 int wbt_init(struct gendisk *disk); 8 void wbt_disable_default(struct gendisk *disk); 9 void wbt_enable_default(struct gendisk *disk); 10 11 u64 wbt_get_min_lat(struct request_queue *q); 12 void wbt_set_min_lat(struct request_queue *q, u64 val); 13 bool wbt_disabled(struct request_queue *); 14 15 void wbt_set_write_cache(struct request_queue *, bool); 16 17 u64 wbt_default_latency_nsec(struct request_queue *); 18 19 #else 20 21 static inline void wbt_disable_default(struct gendisk *disk) 22 { 23 } 24 static inline void wbt_enable_default(struct gendisk *disk) 25 { 26 } 27 static inline void wbt_set_write_cache(struct request_queue *q, bool wc) 28 { 29 } 30 31 #endif /* CONFIG_BLK_WBT */ 32 33 #endif 34