[Drbd-dev] remove REQ_OP_WRITE_SAME v2

[Jens Axboe]

On 2/9/22 10:51 PM, Christoph Hellwig wrote:
> On Wed, Feb 09, 2022 at 01:00:26PM -0500, Martin K. Petersen wrote:
>>
>> Christoph,
>>
>>> Now that we are using REQ_OP_WRITE_ZEROES for all zeroing needs in the
>>> kernel there is very little use left for REQ_OP_WRITE_SAME.  We only
>>> have two callers left, and both just export optional protocol features
>>> to remote systems: DRBD and the target code.
>>
>> No particular objections from me. I had a half-baked series to do the
>> same thing.
>>
>> One thing I would like is to either pull this series through SCSI or do
>> the block pieces in a post merge branch because I'm about to post my
>> discard/zeroing rework and that's going to clash with your changes.
> 
> I'd be fine with taking this through the SCSI tree.  Or we can wait
> another merge window to make your life easier.

Let's just use the SCSI tree - I didn't check if it throws any conflicts
right now, so probably something to check upfront...

If things pan out, you can add my Acked-by to the series.

-- 
Jens Axboe