diff options
Diffstat (limited to 'block/blk-wbt.h')
-rw-r--r-- | block/blk-wbt.h | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/block/blk-wbt.h b/block/blk-wbt.h new file mode 100644 index 0000000000..8a029e138f --- /dev/null +++ b/block/blk-wbt.h @@ -0,0 +1,33 @@ +/* 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 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) +{ +} + +#endif /* CONFIG_BLK_WBT */ + +#endif |