On Fri, Mar 11, 2022 at 12:19:38PM -0800, Luis Chamberlain wrote: > NAND has no PO2 requirement. The emulation effort was only done to help > add support for !PO2 devices because there is no alternative. If we > however are ready instead to go down the avenue of removing those > restrictions well let's go there then instead. If that's not even > something we are willing to consider I'd really like folks who stand > behind the PO2 requirement to stick their necks out and clearly say that > their hw/fw teams are happy to deal with this requirement forever on ZNS. Regardless of the merits of the current OS requirement, it's a trivial matter for firmware to round up their reported zone size to the next power of 2. This does not create a significant burden on their part, as far as I know. And po2 does not even seem to be the real problem here. The holes seem to be what's causing a concern, which you have even without po2 zones. I'm starting to like the previous idea of creating an unholey device-mapper for such users...
