linux-IllusionX/block/blk-wbt.h
Christoph Hellwig 5d13243820 blk-wbt: remove the separate write cache tracking
Use the queue wide write back cache tracking insted of duplicating the
value in strut rq_wb.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20231226090747.204969-1-hch@lst.de
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-12-26 09:28:10 -07:00

28 lines
613 B
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 *);
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)
{
}
#endif /* CONFIG_BLK_WBT */
#endif