virtual void apply_qos_schedule_tick_min(uint64_t tick) = 0;
virtual void apply_qos_limit(uint64_t flag, uint64_t limit,
uint64_t burst, uint64_t burst_seconds) = 0;
+ virtual void apply_qos_exclude_ops(uint64_t exclude_ops) = 0;
virtual bool writes_blocked() const = 0;
virtual int block_writes() = 0;