Re: [PATCH 0/4] FS: userspace notification of errors

From: Jon Masters <jonathan@jonmasters.org>
To: Kay Sievers <kay.sievers@vrfy.org>
Cc: Andrew Morton <akpm@linux-foundation.org>,
	Denis Karpov <ext-denis.2.karpov@nokia.com>,
	axboe@kernel.dk, hirofumi@mail.parknet.co.jp,
	linux-ext4@vger.kernel.org, linux-fsdevel@vger.kernel.org,
	linux-kernel@vger.kernel.org, adrian.hunter@nokia.com,
	artem.bityutskiy@nokia.com
Subject: Re: [PATCH 0/4] FS: userspace notification of errors
Date: Fri, 05 Jun 2009 03:25:22 -0400	[thread overview]
Message-ID: <1244186723.11597.111.camel@localhost.localdomain> (raw)
In-Reply-To: <ac3eb2510906040553j294f1015wfb7deb4b4fc63afc@mail.gmail.com>

On Thu, 2009-06-04 at 14:53 +0200, Kay Sievers wrote:
> On Wed, Jun 3, 2009 at 20:56, Andrew Morton <akpm@linux-foundation.org> wrote:
> > On Wed,  3 Jun 2009 18:05:14 +0300 Denis Karpov <ext-denis.2.karpov@nokia.com> wrote:
> 
> > hm, I'm uncertain on the desirability or otherwise of the
> > overall feature.

I think the idea is a good one. It allows a distribution to take more
proactive measures before services just start dying randomly later. I
could see this nicely wrapped up with some kind of GUI dialog presented
to the desktop user announcing impending doom, too.

> Uevents should not be used for error reporting

Not as currently implemented - but I think the idea of having kernel
events for this kind of thing isn't a bad one, nor is the idea of
listening on a netlink socket for news about them rather than writing
library code to poll whatever procfs file and parse its content.

Jon.