Re: [PATCH][RFC] Adding information of counts processes acquiredhow many spinlocks to schedstat

[Peter Zijlstra]

On Fri, 2009-07-10 at 15:50 +0200, Ingo Molnar wrote:

> > I wonder if the lock_*() events should become independant from 
> > lockdep so that we don't need to always enable lockdep to get the 
> > lock events at the same time.
> > 
> > It could be a separate option.
> 
> They already should be to a large degree if CONFIG_LOCK_STAT is 
> enabled but CONFIG_PROVE_LOCKING is off. In theory :-)

Right, you don't need CONFIG_PROVE_LOCKING in order to get the
tracepoints. Also, you can always boot with prove_locking=0 or runtime
disable it using: echo 0 > /sys/module/lockdep/parameters/prove_locking



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