linux-imx

​

    for (i = 0; i < WBT_NUM_RWQ; i++)

        ret += atomic_read(&rwb->rq_wait[i].inflight);

​

    return ret;

}

​

​

#ifdef CONFIG_BLK_WBT

​

int wbt_init(struct request_queue *);

void wbt_update_limits(struct request_queue *);

void wbt_disable_default(struct request_queue *);

void wbt_enable_default(struct request_queue *);

​

u64 wbt_get_min_lat(struct request_queue *q);

void wbt_set_min_lat(struct request_queue *q, u64 val);

​

void wbt_set_queue_depth(struct request_queue *, unsigned int);

void wbt_set_write_cache(struct request_queue *, bool);