From: Peter Zijlstra <peterz@infradead.org>
To: Eric Sandeen <sandeen@sandeen.net>
Cc: David Chinner <dgc@sgi.com>,
linux-kernel Mailing List <linux-kernel@vger.kernel.org>,
xfs-oss <xfs@oss.sgi.com>, Ingo Molnar <mingo@elte.hu>
Subject: Re: [PATCH] Increase lockdep MAX_LOCK_DEPTH
Date: Fri, 31 Aug 2007 16:36:52 +0200 [thread overview]
Message-ID: <1188571012.6112.67.camel@twins> (raw)
In-Reply-To: <46D826BA.1060705@sandeen.net>
On Fri, 2007-08-31 at 09:33 -0500, Eric Sandeen wrote:
> Peter, unless there is some other reason to do so, changing xfs
> performance behavior simply to satisfy lockdep limitations* doesn't seem
> like the best plan.
>
> I suppose one slightly flakey option would be for xfs to see whether
> lockdep is enabled and adjust cluster size based on MAX_LOCK_DEPTH... on
> the argument that lockdep is likely used in debugging kernels where
> sheer performance is less important... but, that sounds pretty flakey to me.
Agreed, that sucks too :-/
I was hoping there would be a 'nice' solution, a well, again, reality
ruins it.
next prev parent reply other threads:[~2007-08-31 14:37 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-31 4:43 [PATCH] Increase lockdep MAX_LOCK_DEPTH Eric Sandeen
2007-08-31 6:39 ` Peter Zijlstra
2007-08-31 13:50 ` David Chinner
2007-08-31 14:33 ` Eric Sandeen
2007-08-31 14:36 ` Peter Zijlstra [this message]
2007-08-31 14:33 ` Peter Zijlstra
2007-08-31 15:05 ` David Chinner
2007-08-31 15:09 ` Peter Zijlstra
2007-08-31 15:11 ` Eric Sandeen
2007-08-31 15:19 ` David Chinner
2007-08-31 16:33 ` Josef Sipek
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