On 2021/1/28 0:40, Christoph Hellwig wrote: >> +static inline void blk_mq_set_request_complete(struct request *rq) >> +{ >> + WRITE_ONCE(rq->state, MQ_RQ_COMPLETE); >> +} > > This function needs a detailed comment explaining the use case. > Otherwise we'll get lots of driver abuses. ok, thanks. > . >