Messages in this thread | | | Date | Wed, 21 Apr 2010 21:29:10 +0900 | From | Hitoshi Mitake <> | Subject | Re: [PATCH] perf lock: Fix state machine to recognize lock sequence |
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On 04/21/10 17:55, 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.
Thanks for your clear description. It seems that we can think that maximum depth of lock will not be variable.
Thanks, Hitoshi
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