Re: [PATCH tip/core/rcu 2/4] rcu: suppress RCU lockdep warningsduring early boot

From: Paul E. McKenney
Date: Thu Mar 04 2010 - 15:36:57 EST


On Thu, Mar 04, 2010 at 12:12:45PM +0100, Ingo Molnar wrote:
>
> * Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx> wrote:
>
> > @@ -154,6 +167,10 @@ static inline int rcu_read_lock_sched_held(void)
> > # define rcu_read_acquire_sched() do { } while (0)
> > # define rcu_read_release_sched() do { } while (0)
> >
> > +static inline void debug_lockdep_rcu_update(void)
> > +{
> > +}
> > +
>
> Note, this method was only included for the !CONFIG_DEBUG_LOCK_ALLOC case, so
> i left it out for the time being.
>
> Which may result in a somewhat incomplete debug state, but it would at least
> build with lockdep enabled ;-)

Indeed, I clearly didn't test with the boot-time lock testing enabled. :-/

Please accept my apologies for my mess-up, and thank you for fixing it!

Thanx, Paul
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