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

[Frederic Weisbecker]

On Wed, Apr 21, 2010 at 10:55:58AM +0200, Peter Zijlstra wrote:
> 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.


Sure, I didn't meant on runtime but on boot, like in John's recent
proposal.

Thanks.

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