[PATCH v2 2/4] block: Add Sed-opal library

[Christoph Hellwig]

On Fri, Dec 09, 2016 at 10:45:30AM -0700, Scott Bauer wrote:
> Now, with this in mind, it sort of makes sense to move this from
> block/ back into lib/ and interface with the character dev. Instead
> of passing around block_devices, we can pass around struct file *'s.
>

Even the character device is always backed by the queues, and I'd really
not prefer to have a struct file here - that's not useful at all
for in-kernel users.