[PATCH 06/18] nvme: split a new struct nvme_ctrl out of struct nvme_dev

[Christoph Hellwig]

On Tue, Oct 20, 2015 at 01:44:01PM +0300, Sagi Grimberg wrote:
> I wasn't suggesting moving it to nvme_ctrl, I was suggesting to keep it
> in nvme_dev and maybe add a helper have nvme_ctrl_to_dev(ctrl)->dev used
> in slow paths. It would allow to remove the copy pointer in nvme_ctrl.

But it would require adding a function pointer to get the location from
the different transport drivers.  A pointer seems much simpler than that.