linux-kernel - Re: [patch 2/2] lockdep: initialize lockdep debugging statistics

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Message-Id: <1236250159.4228.186.camel@laptop>
Date:	Thu, 05 Mar 2009 11:49:19 +0100
From:	Peter Zijlstra <peterz@...radead.org>
To:	David Rientjes <rientjes@...gle.com>
Cc:	Ingo Molnar <mingo@...hat.com>, linux-kernel@...r.kernel.org
Subject: Re: [patch 2/2] lockdep: initialize lockdep debugging statistics

On Thu, 2009-03-05 at 02:29 -0800, David Rientjes wrote:
> The CONFIG_DEBUG_LOCKDEP statistics need to be initialized with
> ATOMIC_INIT(0) since they are of type atomic_t.

And how does ATOMIC_INIT(0) differ from the global/static storage being
initialized to 0?

All I can see this doing it moving the variables from bss to data for
some compilers.

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