Hi all, this series sits on top of Jens' for-5.14/block branch and tries to convert ubd to the new gendisk and request_queue registration helpers. As part of that I found that the ide emulation code currently registers two gendisk for a request_queue which leads to a bunch of problems we've avoided in other drivers (only the mmc subsystem has a similar issue). Given that the legacy IDE driver isn't practically used any more and modern userspace doesn't hard code specific block drivers, so I think we can just drop it. Let me know if this is ok.
