On Thu, Jun 16, 2022 at 12:09:35PM +0200, Pankaj Raghav wrote:
> On 2022-06-15 22:28, Bart Van Assche wrote:
> >> + if (!is_power_of_2(zone->len) && zone->capacity < zone->len) {
> >> + pr_warn("%s: Invalid zone capacity for non power of 2
> >> zone size",
> >> + disk->disk_name);
> >> return -ENODEV;
> >> }
> >
> > The above check seems wrong to me. I don't see why devices that report a
> > capacity that is less than the zone size should be rejected.
> >
> This was brought up by Damien during previous reviews. The argument was
> that the reason to allow non power-of-2 zoned device is to remove the
> gaps between zone size and zone capacity. Allowing a npo2 zone size with
> a different capacity, even though it is technically possible, it does
> not make any practical sense. That is why this check was introduced.
> Does that answer your question?
Perhaps just add a comment because unless you are involved in the prior
reviews this might not be clear.
Luis
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