On 3/31/21 8:19 PM, Ming Lei wrote:
> From: Jeffle Xu <jefflexu@xxxxxxxxxxxxxxxxx>
>
> 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
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