[Drbd-dev] [PATCH 3/7] rnbd: drop WRITE_SAME support

[Jinpu Wang]

On Wed, Feb 9, 2022 at 3:04 PM Christoph Hellwig <hch at lst.de> wrote:
>
> On Wed, Feb 09, 2022 at 11:16:13AM +0100, Jinpu Wang wrote:
> > Hi Christoph,
> >
> >
> > On Wed, Feb 9, 2022 at 9:28 AM Christoph Hellwig <hch at lst.de> wrote:
> > >
> > > REQ_OP_WRITE_SAME was only ever submitted by the legacy Linux zeroing
> > > code, which has switched to use REQ_OP_WRITE_ZEROES long before rnbd was
> > > even merged.
> >
> > Do you think if it makes sense to instead of removing
> > REQ_OP_WRITE_SAME, simply convert it to REQ_OP_WRITE_ZEROES?
>
> Well, they have different semantics, so you can't just "convert" it.
> But it might make sense to add REQ_OP_WRITE_ZEROES.
Thanks, we will add support for REQ_OP_WRITE_ZEROES later.

For this patch, I've run internal tests, works fine.

Acked-by: Jack Wang <jinpu.wang at ionos.com>
Thanks!