Re: [PATCH 04/16] block: allow blk-zoned devices to have non-power-of-2 zone size

Luis Chamberlain
2022-04-28T17:29:46Z

On Thu, Apr 28, 2022 at 08:37:27AM +0900, Damien Le Moal wrote:
> Also, the entire premise of this patch series is that it is hard for
> people to support the unusable sectors between zone capacity and zone end
> for drives with a zone capacity smaller than the zone size.
>
> Yet, here you do not check that zone capacity == zone size for drives that
> do not have a zone size equal to a power of 2 number of sectors. This
> means that we can still have drives with ZC < ZS AND ZS not equal to a
> power of 2. So from the point of view of your arguments, no gains at all.
> Any thoughts on this ?

You are right, a check should be added on bringup so that if npo2 is
used, zone cap == zone size. That should be added on the next iteration
of this patch.

Luis