Re: [PATCH v2 0/29] block: Make blkdev_get_by_*() return handle

So besides my last fput() worry about I think this could work and would be
probably a bit nicer than what I have. But before going and redoing the whole
series let me gather some more feedback so that we don't go back and forth.
Christoph, Christian, Jens, any opinion?

I'll be a bit under water for the next few days, I expect but I'll get
back to this. I think not making you redo this whole thing from scratch
is what I'd prefer unless there's really clear advantages. But I don't
want to offer a haphazard opinion in the middle of the merge window.