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

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Message-Id: <1244186723.11597.111.camel@localhost.localdomain>
Date:	Fri, 05 Jun 2009 03:25:22 -0400
From:	Jon Masters <jonathan@...masters.org>
To:	Kay Sievers <kay.sievers@...y.org>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	Denis Karpov <ext-denis.2.karpov@...ia.com>, axboe@...nel.dk,
	hirofumi@...l.parknet.co.jp, linux-ext4@...r.kernel.org,
	linux-fsdevel@...r.kernel.org, linux-kernel@...r.kernel.org,
	adrian.hunter@...ia.com, artem.bityutskiy@...ia.com
Subject: Re: [PATCH 0/4] FS: userspace notification of errors

On Thu, 2009-06-04 at 14:53 +0200, Kay Sievers wrote:
> On Wed, Jun 3, 2009 at 20:56, Andrew Morton <akpm@...ux-foundation.org> wrote:
> > On Wed,  3 Jun 2009 18:05:14 +0300 Denis Karpov <ext-denis.2.karpov@...ia.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.

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