Re: [PATCH 1/2] nvme: set io-scheduler requirement for ZNS

[Kanchan Joshi]

On Tue, Aug 18, 2020 at 12:46 PM Christoph Hellwig <hch@xxxxxx> wrote:
>
> On Tue, Aug 18, 2020 at 10:59:35AM +0530, Kanchan Joshi wrote:
> > Set elevator feature ELEVATOR_F_ZBD_SEQ_WRITE required for ZNS.
>
> No, it is not.

Are you saying MQ-Deadline (write-lock) is not needed for writes on ZNS?
I see that null-block zoned and SCSI-ZBC both set this requirement. I
wonder how it became different for NVMe.

-- 
Kanchan