Re: [PATCH] perf lock: Fix state machine to recognize lock sequence

[Peter Zijlstra]

On Wed, 2010-04-21 at 03:26 +0200, Frederic Weisbecker wrote:
> The max lockdep depth may
> change in the future, or become variable, so we can't relay on that.
> 
Change, possible, variable unlikely, you need a memory allocation to
extend it, and memory allocation takes locks, which is not a nice thing
to do in the middle of lockdep.

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