linux-kernel - Re: [PATCH RFC] frontend.c: Remove the BKL from agp

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Date:	Mon, 12 Oct 2009 19:03:23 +1000
From:	Dave Airlie <airlied@...il.com>
To:	John Kacur <jkacur@...hat.com>
Cc:	linux-kernel@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
	David Airlie <airlied@...ux.ie>,
	Jonathan Corbet <corbet@....net>,
	Frederic Weisbecker <fweisbec@...il.com>,
	Ingo Molnar <mingo@...e.hu>,
	Vincent Sanders <vince@...tec.co.uk>,
	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Christoph Hellwig <hch@...radead.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Peter Zijlstra <a.p.zijlstra@...llo.nl>
Subject: Re: [PATCH RFC] frontend.c: Remove the BKL from agp_open

On Mon, Oct 12, 2009 at 6:24 AM, John Kacur <jkacur@...hat.com> wrote:
>
> @David Airlie. I was looking at the agp driver for removal of the bkl
> lock. From what I could tell, the mutex_lock(&(agp_fe.agp_mutex)) should
> cover what we need. However, I may have easily missed something, and would
> appreciate your review / comments on the patch.

This seems fine, though I suck at locking logic,

One thing to note is the number of users of this interface is probably
close to 0,
so even if this does break something we probably won't ever find out.

Dave.
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