linux-kernel - Re: lockdep oddity

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Message-Id: <20060906004724.e52d45a2.akpm@osdl.org>
Date:	Wed, 6 Sep 2006 00:47:24 -0700
From:	Andrew Morton <akpm@...l.org>
To:	Heiko Carstens <heiko.carstens@...ibm.com>
Cc:	Ingo Molnar <mingo@...e.hu>, linux-kernel@...r.kernel.org,
	Arjan van de Ven <arjan@...radead.org>,
	Daniel Walker <dwalker@...sta.com>,
	Hua Zhong <hzhong@...il.com>
Subject: Re: lockdep oddity

On Wed, 6 Sep 2006 09:20:43 +0200
Heiko Carstens <heiko.carstens@...ibm.com> wrote:

> I'm also wondering why the profile
> patch contains this:
> 
> +       if (ret)
> +               likeliness->count[1]++;
> +       else
> +               likeliness->count[0]++;
> 
> This isn't smp safe. Is that on purpose or a bug?

Purposeful.   This is called from all contexts, including NMI.
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