linux-kernel - Re: [PATCH(v3) 2.6.24] Fix fakephp deadlock

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Message-ID: <479DAF85.5020202@mev.co.uk>
Date:	Mon, 28 Jan 2008 10:33:41 +0000
From:	Ian Abbott <abbotti@....co.uk>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, linux-pci@...ey.karlin.mff.cuni.cz,
	pcihpd-discuss@...ts.sourceforge.net, gregkh@...e.de,
	kristen.c.accardi@...el.com
Subject: Re: [PATCH(v3) 2.6.24] Fix fakephp deadlock

On 27/01/08 06:01, Andrew Morton wrote:
> Adding a deferred-work like this just because we can't get the locking and
> refcounting correct is a really sad hack.

True, but some would argue that the fakephp driver itself was a really 
sad hack. :-)

> Can we get the locking and refcounting right please?  Start by making that
> wait-for-refcount-to-go-away go away.

I guess that stuff was added for a good reason and fixed other potential 
problems - it just broke fakephp.  It's an unusual requirement to try 
and support -- a file that self-destructs when you write to it.  Are 
there any other cases in sysfs that do that?

-- 
-=( Ian Abbott @ MEV Ltd.    E-mail: <abbotti@....co.uk>        )=-
-=( Tel: +44 (0)161 477 1898   FAX: +44 (0)161 718 3587         )=-
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