53 lines
1.1 KiB
C
53 lines
1.1 KiB
C
/* 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
|