Re: [PATCH] block: fix io hung by block throttle

[Junxiao Bi <junxiao.bi@xxxxxxxxxx>]

On 4/18/21 11:09 PM, Junxiao Bi wrote:
> > - finish_wait(&rqw->wait, &data.wq);
> > +    mutex_lock(&rqw->throttle_mutex);
> > +    wait_event(rqw->wait, acquire_inflight_cb(rqw, private_data));
> > +    mutex_unlock(&rqw->throttle_mutex);
>
> This will break the throttle? There is a inflight io limitation. With 
> this change, there can be only one io inflight whatever the limit is.
Sorry, ignore this. I should go sleep that time.
> Thanks,
>
> Junxiao.