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SubjectRe: [PATCH] locking/lockdep: Zap lock classes even with lock debugging disabled
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On Wed, 2019-04-03 at 13:44 +0100, Will Deacon wrote:
> > --- a/kernel/locking/lockdep.c
> > +++ b/kernel/locking/lockdep.c
> > @@ -4689,8 +4689,7 @@ static void free_zapped_rcu(struct rcu_head *ch)
> > return;
> >
> > raw_local_irq_save(flags);
> > - if (!graph_lock())
> > - goto out_irq;
> > + arch_spin_lock(&lockdep_lock);
>
> This also throws out the recursion counting. Is that ok?

Apparently not, as the build bot just figured out. I will restore recursion
counting. See also
https://lore.kernel.org/lkml/5ca4ea66.eVtXtf5CmqRjP7xF%25lkp@intel.com/.

Bart.

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