> >
> > I mean, shared bitmap in my whole discussion. Megaraid_sas driver use
> > shared bitmap, so it is exposed and It is confirmed from this
discussion.
> > Do we still have exposure (if "blk-mq: avoid to iterate over stale
> > request" is not part of kernel)  to mpi3mr type driver which does not
> > use shared bitmap but has nr_hw_queues > 1. ?
>
> Not sure I understand your poing, but patch "blk-mq: avoid to iterate
over
> stale request" can cover both shared tags or not.

I agree with all above reply.

My query is for mpi3mr driver which is not calling "host->host_tagset =
1;", but nr_hw_queues are more than 1.
Current <mpi3mr> driver is nvme style interface. nr_hw_queues  > 1 and
host->host_tagset = 0.

Is this patch  "blk-mq: avoid to iterate over stale request" is applicable
for <mpi3mr> driver ?

Kashyap

>
>
>
> Thanks,
> Ming