linux-kernel - Re: [PATCH v5 0/3] init: add support to directly boot to a mapped device

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Message-ID: <CAGXu5jJ9nUdE8u8a3EYR5uS_zOLEkmQn3M0Nsm9bkxBmMxpC9Q@mail.gmail.com>
Date:	Mon, 22 Feb 2016 10:55:11 -0800
From:	Kees Cook <keescook@...omium.org>
To:	Kees Cook <keescook@...omium.org>,
	Alasdair Kergon <agk@...hat.com>,
	Mike Snitzer <snitzer@...hat.com>, dm-devel@...hat.com,
	Jonathan Corbet <corbet@....net>, Shaohua Li <shli@...nel.org>,
	Dan Ehrenberg <dehrenberg@...omium.org>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	Chen Yu <yu.c.chen@...el.com>,
	Vishnu Pratap Singh <vishnu.ps@...sung.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Yaowei Bai <baiyaowei@...s.chinamobile.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	LKML <linux-kernel@...r.kernel.org>, linux-raid@...r.kernel.org,
	Will Drewry <wad@...omium.org>,
	David Zeuthen <zeuthen@...gle.com>
Subject: Re: [PATCH v5 0/3] init: add support to directly boot to a mapped device

On Sun, Feb 21, 2016 at 2:08 PM, Alasdair G Kergon <agk@...hat.com> wrote:
> On Sat, Feb 20, 2016 at 10:13:49AM -0800, Kees Cook wrote:
>> This is a resurrection of a patch series from a few years back, first
>> brought to the dm maintainers in 2010. It creates a way to define dm
>> devices on the kernel command line for systems that do not use an
>> initramfs, or otherwise need a dm running before init starts.
>>
>> This has been used by Chrome OS for several years, and now by Brillo
>> (and likely Android soon).
>>
>> The last version was v4:
>> https://patchwork.kernel.org/patch/104860/
>> https://patchwork.kernel.org/patch/104861/
>
> Inconsistencies in the terminology here can be sorted out during review,
> and I see that you've taken on board some of my review comments from
> 2010, but what are your responses to the rest of them?

Ah, sorry, the threads I could find were incomplete, so I wasn't able
to find those comments that were made to Will's 2010 submission. In
some of the cleanups I did I was very confused about "target" vs
"table", and tried to fix that. Regardless, I'm open to fixing
whatever is needed. :)

Thanks for looking at this again!

-Kees

-- 
Kees Cook
Chrome OS & Brillo Security