[dm-devel] use regular gendisk registration in device mapper

[Christoph Hellwig]

On Tue, Jul 27, 2021 at 11:58:46AM -0400, Mike Snitzer wrote:
> > This did not make a different to my testing
> > using dmsetup and the lvm2 tools.
> 
> I'll try these changes running through the lvm2 testsuite.

Btw, is ther documentation on how to run it somewhere?  I noticed
tests, old-tests and unit-tests directories, but no obvious way
to run them.