Re: [PATCH 0/6] block: add support for REQ_OP_VERIFY
From: Keith Busch <kbusch@kernel.org>
Date: 2022-12-04 20:30:08
Also in:
linux-fsdevel, linux-nvme, linux-raid
From: Keith Busch <kbusch@kernel.org>
Date: 2022-12-04 20:30:08
Also in:
linux-fsdevel, linux-nvme, linux-raid
On Sat, Dec 03, 2022 at 07:19:17AM +0300, Javier González wrote:
quoted
On 2 Dec 2022, at 17.58, Keith Busch [off-list ref] wrote: On Fri, Dec 02, 2022 at 08:16:30AM +0100, Hannes Reinecke wrote:quoted
quoted
On 12/1/22 20:39, Matthew Wilcox wrote: On Thu, Dec 01, 2022 at 06:12:46PM +0000, Chaitanya Kulkarni wrote:quoted
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.