# Re: \[PATCH 07/18\] dm: always defer request allocation to the owner of the request\_queue

- From: Christoph Hellwig \<hch@lst.de\>
- Date: 2017-01-27 16:36:04 
- List: linux-block
- Page: https://ratatoskr.run/linux-block/2017/01/6370694
- Thread: https://ratatoskr.run/linux-block/2017/01/6370318/t.md

```text
On Fri, Jan 27, 2017 at 11:34:34AM -0500, Mike Snitzer wrote:
> Noticed after further review that it seems a bit weird to have the non
> blk-mq support in drivers calling blk_mq_rq_to_pdu().  But I'm not sure
> a blk_rq_to_pdu() macro to blk_mq_rq_to_pdu() is the right thing.  What
> do you guys think?

My first version had an additional name for it, but it caused more
confusion than help.
```