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Date: Tue, 29 Nov 2011 08:55:30 -0600 (CST)
From: Christoph Lameter <cl@linux.com>
Subject: Re: possible slab deadlock while doing ifenslave
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To: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>, Hans Schillstrom <hans@schillstrom.com>, Ingo Molnar <mingo@redhat.com>, Pekka Enberg <penberg@cs.helsinki.fi>, Matt Mackall <mpm@selenic.com>, Sitsofe Wheeler <sitsofe@yahoo.com>, linux-mm@kvack.org

On Mon, 28 Nov 2011, Peter Zijlstra wrote:

> Commit 30765b92 ("slab, lockdep: Annotate the locks before using
> them") moves the init_lock_keys() call from after g_cpucache_up =
> FULL, to before it. And overlooks the fact that init_node_lock_keys()
> tests for it and ignores everything !FULL.
>
> Introduce a LATE stage and change the lockdep test to be <LATE.

Acked-by: Christoph Lameter <cl@linux.com>

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