On Wed, Nov 28, 2018 at 08:00:10AM +0100, Christoph Hellwig wrote:

On Wed, Nov 28, 2018 at 10:20:01AM +0800, Ming Lei wrote:

quoted

On Mon, Nov 26, 2018 at 10:33:32AM -0700, Jens Axboe wrote:

quoted

On 11/26/18 9:54 AM, Keith Busch wrote:

quoted

The iterative update to the previous version taking into account review
comments.

Background:

The main objective is to remove the generic block layer's lock prefix
currently required to transition a request to its completed state by
shifting that expense to lower level drivers that actually need it,
and removing the software layering violation that was required to use
that mechnaism.

Thanks Keith, added for 4.21.

Hi Jens & Keith,

Seems this patchset causes the following kernel panic, since not see
this issue with commit 4ab32bf3305e

Is this the nvme target on top of null_blk?

Yes.

Thanks,
Ming