Re: [PATCH] tracing: Fix lockdep warning in global_clock()

[Li Zefan]

Peter Zijlstra wrote:
> On Tue, 2009-12-22 at 13:17 +0800, Li Zefan wrote:
> 
>> Looking into sched_clock.c, seems the only place that can trigger lockdep
>> is the local_irq_* in cpu_clock(), though I'm not sure for architecture-
>> specific sched_clock().
> 
> But why would you want to do that? that reduces the lockdep coverage for
> no good reason, just fix up the tracer.
> 

Then the proper fix is to use local_irq_* in global_clock(), which
is what this patch does.

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