Re: remove exofs, the T10 OSD code and block/scsi bidi support V4

From: Jens Axboe
Date: Fri Feb 01 2019 - 10:13:35 EST

On 2/1/19 12:55 AM, Christoph Hellwig wrote:
> The only real user of the T10 OSD protocol, the pNFS object layout
> driver never went to the point of having shipping products, and we
> removed it 1.5 years ago. Exofs is just a simple example without
> real life users.
> The code has been mostly unmaintained for years and is getting in the
> way of block / SCSI changes, and does not even work properly currently,
> so I think it's finally time to drop it.
> Quote from Boaz:
> "As I said then. It is used in Universities for studies and experiments.
> Every once in a while. I get an email with questions and reports.
> But yes feel free to remove the all thing!!
> I guess I can put it up on github. In a public tree.
> Just that I will need to forward port it myself, til now you guys
> been doing this for me ;-)"
> Now the last time this caused a bit of a stir, but still no actual users,
> not even for SG_IO passthrough commands. So here we go again, this time
> including removing everything in the scsi and block layer supporting it,
> and thus shrinking struct request.

I'm fine with killing it. You can add my:

Reviewed-by: Jens Axboe <axboe@xxxxxxxxx>

to the series.

Jens Axboe