From: Keith Busch <kbusch@kernel.org>
To: "Javier González" <javier@javigon.com>
Cc: Hannes Reinecke <hare@suse.de>,
Matthew Wilcox <willy@infradead.org>,
Chaitanya Kulkarni <chaitanyak@nvidia.com>,
linux-block@vger.kernel.org, linux-raid@vger.kernel.org,
linux-nvme@lists.infradead.org, linux-fsdevel@vger.kernel.org,
axboe@kernel.dk, djwong@kernel.org, hch@lst.de, sagi@grimberg.me,
jejb@linux.ibm.com, martin.petersen@oracle.com,
Johannes.Thumshirn@wdc.com, bvanassche@acm.org,
dongli.zhang@oracle.com, jefflexu@linux.alibaba.com,
josef@toxicpanda.com, clm@fb.com, dsterba@suse.com,
jack@suse.com, tytso@mit.edu, adilger.kernel@dilger.ca,
jlayton@kernel.org, idryomov@gmail.com,
danil.kipnis@cloud.ionos.com, ebiggers@google.com,
jinpu.wang@cloud.ionos.com
Subject: Re: [PATCH 0/6] block: add support for REQ_OP_VERIFY
Date: Sun, 4 Dec 2022 20:29:44 +0000 [thread overview]
Message-ID: <Y40DOJ+7WlqIwkbD@kbusch-mbp> (raw)
In-Reply-To: <4F15C752-AE73-4F10-B5DD-C37353782111@javigon.com>
On Sat, Dec 03, 2022 at 07:19:17AM +0300, Javier González wrote:
>
> > On 2 Dec 2022, at 17.58, Keith Busch <kbusch@kernel.org> wrote:
> >
> > On Fri, Dec 02, 2022 at 08:16:30AM +0100, Hannes Reinecke wrote:
> >>> On 12/1/22 20:39, Matthew Wilcox wrote:
> >>> On Thu, Dec 01, 2022 at 06:12:46PM +0000, Chaitanya Kulkarni wrote:
> >>>> So nobody can get away with a lie.
> >>>
> >>> And yet devices do exist which lie. I'm not surprised that vendors
> >>> vehemently claim that they don't, or "nobody would get away with it".
> >>> But, of course, they do. And there's no way for us to find out if
> >>> they're lying!
> >>>
> >> But we'll never be able to figure that out unless we try.
> >>
> >> Once we've tried we will have proof either way.
> >
> > As long as the protocols don't provide proof-of-work, trying this
> > doesn't really prove anything with respect to this concern.
>
> Is this something we should bring to NVMe? Seems like the main disagreement can be addressed there.
Yeah, proof for the host appears to require a new feature, so we'd need
to bring this to the TWG. I can draft a TPAR if there's interest and
have ideas on how the feature could be implemented, but I currently
don't have enough skin in this game to sponser it.
next prev parent reply other threads:[~2022-12-04 20:30 UTC|newest]
Thread overview: 41+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-06-30 9:14 [PATCH 0/6] block: add support for REQ_OP_VERIFY Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 1/6] " Chaitanya Kulkarni
2022-06-30 16:18 ` Darrick J. Wong
2022-07-05 16:50 ` Chaitanya Kulkarni
2022-07-05 17:57 ` Darrick J. Wong
2022-07-06 1:32 ` Chaitanya Kulkarni
2022-07-05 8:34 ` Christoph Hellwig
2022-07-05 23:55 ` Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 2/6] nvme: add support for the Verify command Chaitanya Kulkarni
2022-06-30 16:24 ` Keith Busch
2022-07-05 8:34 ` Christoph Hellwig
2022-07-05 23:56 ` Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 3/6] nvmet: add Verify command support for bdev-ns Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 4/6] nvmet: add Verify emulation " Chaitanya Kulkarni
2022-07-05 8:35 ` Christoph Hellwig
2022-07-06 0:00 ` Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 5/6] nvmet: add verify emulation support for file-ns Chaitanya Kulkarni
2022-07-05 8:36 ` Christoph Hellwig
2022-07-06 0:06 ` Chaitanya Kulkarni
2022-06-30 9:14 ` [PATCH 6/6] null_blk: add REQ_OP_VERIFY support Chaitanya Kulkarni
2022-07-05 8:38 ` [PATCH 0/6] block: add support for REQ_OP_VERIFY Christoph Hellwig
2022-07-05 16:47 ` Chaitanya Kulkarni
2022-07-06 17:42 ` Matthew Wilcox
2022-07-13 9:14 ` Chaitanya Kulkarni
2022-07-13 9:36 ` Johannes Thumshirn
2022-07-13 12:17 ` Matthew Wilcox
2022-07-13 14:04 ` Keith Busch
2022-12-01 18:12 ` Chaitanya Kulkarni
2022-12-01 19:39 ` Matthew Wilcox
2022-12-02 7:16 ` Hannes Reinecke
2022-12-02 14:58 ` Keith Busch
2022-12-02 17:33 ` Clay Mayers
2022-12-02 18:58 ` Keith Busch
2022-12-09 4:52 ` Martin K. Petersen
2022-12-10 13:06 ` Carlos Carvalho
2022-12-12 6:30 ` hch
2022-12-03 4:19 ` Javier González
2022-12-04 20:29 ` Keith Busch [this message]
2022-12-08 20:06 ` Javier González
2022-12-08 20:02 ` Matthew Wilcox
2022-12-02 7:13 ` Hannes Reinecke
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