[dm-devel] [PATCH V5 10/12] block: add queue_to_disk() to get gendisk from request_queue

[Jens Axboe]

On 3/31/21 8:19 PM, Ming Lei wrote:
> From: Jeffle Xu <jefflexu at linux.alibaba.com>
> 
> Sometimes we need to get the corresponding gendisk from request_queue.
> 
> It is preferred that block drivers store private data in
> gendisk->private_data rather than request_queue->queuedata, e.g. see:
> commit c4a59c4e5db3 ("dm: stop using ->queuedata").
> 
> So if only request_queue is given, we need to get its corresponding
> gendisk to get the private data stored in that gendisk.

Applied this one as a separate cleanup/helper.

-- 
Jens Axboe