linux-kernel - Re: [RFC] persistent store

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Message-ID: <AANLkTi=YTro_ZgsZCpznXR9aT+rV=Ukg6q1n0m9X724f@mail.gmail.com>
Date:	Mon, 22 Nov 2010 10:33:05 -0800
From:	Tony Luck <tony.luck@...il.com>
To:	Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:	Huang Ying <ying.huang@...el.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arch@...r.kernel.org" <linux-arch@...r.kernel.org>,
	"tglx@...utronix.de" <tglx@...utronix.de>,
	"mingo@...e.hu" <mingo@...e.hu>, "greg@...ah.com" <greg@...ah.com>,
	"akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
	Linux Embedded <linux-embedded@...r.kernel.org>
Subject: Re: [RFC] persistent store

On Mon, Nov 22, 2010 at 10:24 AM, Geert Uytterhoeven
<geert@...ux-m68k.org> wrote:
> Any tangents with "pramfs: persistent and protected RAM filesystem"
> on linux-embedded?

That looks nice for building on top on a sane h/w design (a
block of non-volatile RAM).  My pstore code works with
uglier things. The ACPI/ERST interface provides ways to
read/write/clear "records" from what might be some NVRAM,
but might also be a channel to a service processor ... and
ERST is what I'd like to see made usable (without subjecting
users to the implementation details).

-Tony
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