On 08/23/2017 11:10 AM, Christoph Hellwig wrote:

Hi Jens,

this series removes the need to have a struct block_device ready to
submit a bio.   We basically don't use it anywhere in the block stack
anyway - we always go for the gendisk or request_queue.  The only
exception is partition remapping for which we'll now need an additional
partition index.  This helps with cases where we submit I/O from a
character device (nvme or lightnvm passthrough) or a different block
device (upcoming nvme multipath support).

Looks fine to me. I can take it through the block tree, when the md/btrfs
parts are reviewed by the right parties.

-- 
Jens Axboe