From: Ingo Molnar <mingo@elte.hu>
To: Peter Zijlstra <peterz@infradead.org>
Cc: David Rientjes <rientjes@google.com>,
Ingo Molnar <mingo@redhat.com>,
linux-kernel@vger.kernel.org
Subject: Re: [patch 2/2] lockdep: initialize lockdep debugging statistics
Date: Thu, 5 Mar 2009 12:05:22 +0100 [thread overview]
Message-ID: <20090305110522.GI32407@elte.hu> (raw)
In-Reply-To: <1236250159.4228.186.camel@laptop>
* Peter Zijlstra <peterz@infradead.org> wrote:
> 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.
ok, i dropped it for now.
Ingo
next prev parent reply other threads:[~2009-03-05 11:06 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-03-05 10:29 [patch 1/2] lockdep: remove duplicate CONFIG_DEBUG_LOCKDEP definitions David Rientjes
2009-03-05 10:29 ` [patch 2/2] lockdep: initialize lockdep debugging statistics David Rientjes
2009-03-05 10:48 ` [tip:core/locking] " David Rientjes
2009-03-05 10:49 ` [patch 2/2] " Peter Zijlstra
2009-03-05 11:05 ` Ingo Molnar [this message]
2009-03-05 21:57 ` David Rientjes
2009-03-06 8:28 ` Peter Zijlstra
2009-03-06 9:56 ` David Rientjes
2009-03-06 10:19 ` Peter Zijlstra
2009-03-06 10:27 ` David Rientjes
2009-03-06 10:46 ` Peter Zijlstra
2009-03-06 10:05 ` Li Zefan
2009-03-05 10:48 ` [tip:core/locking] lockdep: remove duplicate CONFIG_DEBUG_LOCKDEP definitions David Rientjes
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