Re: [PATCH v2] block: ublk: enable zoned storage support

From: Ming Lei
Date: Thu Mar 02 2023 - 04:03:06 EST


On Thu, Mar 02, 2023 at 04:32:21PM +0800, Ming Lei wrote:
> On Thu, Mar 02, 2023 at 08:31:07AM +0100, Andreas Hindborg wrote:
> >

...

> >
> > I agree about fetching more zones. However, it is no good to fetch up to
> > a max, since the requested zone report may less than max. I was
>
> Short read should always be supported, so the interface may need to
> return how many zones in single command, please refer to nvme_ns_report_zones().

blk_zone is part of uapi, maybe the short read can be figured out by
one all-zeroed 'blk_zone'? then no extra uapi data is needed for
reporting zones.


thanks,
Ming