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	for linux-mtd@lists.infradead.org; Wed, 16 Jun 2010 06:46:58 +0000
Subject: Re: detecting that ubifs switched to ro after problem
From: Artem Bityutskiy <dedekind1@gmail.com>
To: Jon Ringle <jon@ringle.org>
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Date: Wed, 16 Jun 2010 09:44:06 +0300
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On Mon, 2010-06-14 at 11:15 -0400, Jon Ringle wrote:
> On Sun, Jun 13, 2010 at 5:47 AM, Artem Bityutskiy <dedekind1@gmail.com> wrote:
> > On Fri, 2010-06-11 at 22:46 -0400, Jon Ringle wrote:
> >> Hi,
> >>
> >> I'd like to be able to somehow detect that ubifs has taken the action
> >> of switching from rw to ro due to some error detected in the ubifs
> >> filesystem. If I can detect this then maybe I can do something about
> >> it, such as copying the ubifs contents to a .tar.bz2 in /tmp,
> >> mkfs.ubifs, and restore .tar.bz2 back again.
> >>
> >> Is there a way I can do this?
> >
> > I think with 2fde99cb55fb9d9b88180512a5e8a5d939d27fec you can check for
> > R/O state from /proc/mounts. Also, you can use something like inotify to
> > watch /proc/mounts changes and react if UBIFS became r/o.
> 
> Any possibility of having that merged into
> git://git.infradead.org/~dedekind/ubifs-v2.6.32.git?

It is there since 2010-05-23, you just need to use "git pull" from time
to time :-)

-- 
Best Regards,
Artem Bityutskiy (Артём Битюцкий)