[PATCH 1/6] nvme: zns: Allow ZNS drives that have non-power_of_2 zone size

[Pankaj Raghav]

On 2022-03-08 18:14, Keith Busch wrote:
> The zns report zones realigns the starting sector using an expected pow2
> value, so I think you need to update that as well with something like
> the following:
> 
> @@ -197,7 +189,7 @@ int nvme_ns_report_zones(struct nvme_ns *ns, sector_t sector,
>  	c.zmr.zrasf = NVME_ZRASF_ZONE_REPORT_ALL;
>  	c.zmr.pr = NVME_REPORT_ZONE_PARTIAL;
>  
> -	sector &= ~(ns->zsze - 1);
> +	sector = sector - sector % ns->zsze;
>  	while (zone_idx < nr_zones && sector < get_capacity(ns->disk)) {
>  		memset(report, 0, buflen);
>  

I actually have these changes in the Patch 4/6:
-	sector &= ~(ns->zsze - 1);
+	sector = rounddown(sector, zone_size);

But you are right, I should move those changes to this patch as this patch
removes the po2 assumptions in NVMe ZNS driver.

I will fix it up in the next revision. Thanks.

-- 
Regards,
Pankaj