Re: [PATCH v2 0/2] block: aoe: fix page fault in freedev()

[Valentin Kleibel <valentin@vrvis.at>]

> I do not know, sorry.  But we prefer the upstream commits as much as
> possible as one-off changes like this are almost always buggy and wrong
> in the end.
> 
> Try doing the backports and see what that looks like please.

I did the backports now but Christoph Hellwig already pointed out:
> No idea what is hidden in bugzilla, but the blk_mq_alloc_disk changes
> aren't easily backportable.
[https://lore.kernel.org/all/20220308060916.GB23629@lst.de/]

Therefore I cherry-picked only the changes for blk_cleanup_disk as they 
are much simpler than the changes to blk_mq_alloc_disk.

I kept the original commit messages, please tell me if you feel they 
should be changed or do so yourself.

Please apply to 5.4 and 5.10.

Cheers,
Valentin

changelog:
v2:
* cherry pick from upstream commits instead of creating a new patch