move integrity settings to queue_limits v2

[Mike Snitzer]

On Fri, Jun 07, 2024 at 07:58:54AM +0200, Christoph Hellwig wrote:
> Hi Jens, hi Martin,
> 
> this series converts the blk-integrity settings to sit in the queue
> limits and be updated through the atomic queue limits API.
> 
> I've mostly tested this with nvme, scsi is only covered by simple
> scsi_debug based tests.
> 
> For MD I found an pre-existing error handling bug when combining PI
> capable devices with not PI capable devices.  The fix was posted here
> (and is included in the git branch below):
> 
>    https://lore.kernel.org/linux-raid/20240604172607.3185916-1-hch@lst.de/
> 
> For dm-integrity my testing showed that even the baseline fails to create
> the luks-based dm-crypto with dm-integrity backing for the authentication
> data.  As the failure is non-fatal I've not addressed it here.

Setup is complicated. Did you test in terms of cryptsetup's testsuite?
Or something else?

Would really like to see these changes verified to work, with no
cryptsetup regressions, before they go in.
 
> Note that the support for native metadata in dm-crypt by Mikulas will
> need a rebase on top of this, but as it already requires another
> block layer patch and the changes in this series will simplify it a bit
> I hope that is ok.

Should be fine, Mikulas can you verify this series to pass
cryptsetup's testsuite before you rebase?

Thanks,
Mike