linux-kernel - Re: [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag and write

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Message-ID: <20190204150415.GO31132@infradead.org>
Date:   Mon, 4 Feb 2019 07:04:15 -0800
From:   Christoph Hellwig <hch@...radead.org>
To:     David Kozub <zub@...ux.fjfi.cvut.cz>
Cc:     Jens Axboe <axboe@...nel.dk>,
        Jonathan Derrick <jonathan.derrick@...el.com>,
        Scott Bauer <sbauer@...donthack.me>,
        linux-block@...r.kernel.org, linux-kernel@...r.kernel.org,
        Jonas Rabenstein <jonas.rabenstein@...dium.uni-erlangen.de>
Subject: Re: [PATCH v4 00/16] block: sed-opal: support shadow MBR done flag
 and write

On Fri, Feb 01, 2019 at 09:50:07PM +0100, David Kozub wrote:
> This patch series extends SED OPAL support: it adds IOCTL for setting the shadow
> MBR done flag which can be useful for unlocking an OPAL disk on boot and it adds
> IOCTL for writing to the shadow MBR. Also included are some minor fixes and
> improvements.

Actually most of it is really useful cleanups and small fixes for the
existing OPAL code.  Any chance you could resend just those bits as
a first series ASAP?  I'll try to spend some time to to review the
actual feature additions in the meantime.

> There is a fork of sed-opal-temp that can use these new IOCTLs.[2] I tested
> these on Samsung 840 EVO and 850 EVO drives, on x86-64 and arm64 systems.

Which brings up another question:  how do we get a properly maintained
version of the sed-opal tool up ASAP?  It's been a bit bitrotting
unfortunately, and the documentation and error handling hasn't been all
that great to start with.  Are we going to find a good home for it?
Util-linux for example?