[PATCH] nvme: zns: limit max_zone_append by max_segments

[Christoph Hellwig]

On Mon, Jul 31, 2023 at 11:01:21PM +0900, Damien Le Moal wrote:
> We cannot do that in zonefs because there is no metadata to handle a possible
> reordering of the fragments of a split large zone append. Hence zonefs limits
> writes size to max zone append on entry and never tries to do larger writes. But
> the ZNS limit bug resulted in the split. At least for zonefs, I think there is
> no need to use the special bio add page since with a proper limit, we should
> never see a split.

Then we need to bring back something like the code removed in
8e81aa16a42169faae1ba15cd648cc8bb83eaa48, although I'd kinda hate that,
and I don't really say how that would protect against reordering either.