linux-kernel - Re: [RFC] pstore: Don't use persistent store for normal shutdown

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Message-ID: <AANLkTi=o3fN+aXSodZL_MyDnFczaXCmOjFwReD1jDZQP@mail.gmail.com>
Date:	Mon, 21 Mar 2011 15:01:14 -0700
From:	Tony Luck <tony.luck@...el.com>
To:	Seiji Aguchi <seiji.aguchi@....com>
Cc:	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	David Woodhouse <dwmw2@...radead.org>,
	Marco Stornelli <marco.stornelli@...il.com>,
	Artem Bityutskiy <Artem.Bityutskiy@...ia.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: [RFC] pstore: Don't use persistent store for normal shutdown

On Mon, Mar 21, 2011 at 2:47 PM, Seiji Aguchi <seiji.aguchi@....com> wrote:
> I think we should introduce a tunable parameter specifying how much data stores into persistent
> ram when normal shutdown happens.

Currently pstore has a /sys/fs/pstore hook to change the amount of data saved.
Christoph Hellwig convinced me that a mount option would be better, so there
is a patch pending to change this:
  http://marc.info/?l=linux-fsdevel&m=130048763005234&w=2

I can add more options easily (apart from thinking of good names for
the options :-)

But this is beginning to feel over engineered ... I think I'll wait to see
if there are some other (better) ideas before I rush to do this.

-Tony
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