Re: [PATCH 1/5] lockdep: Implement bitlock map allocator

From: Byungchul Park
Date: Thu Jul 07 2016 - 06:23:58 EST


On Mon, Jul 04, 2016 at 04:29:25PM +0900, Byungchul Park wrote:
> > > 3. I think this is more general approach because _any_ random bit in
> > > memory can be used as a lock. Do we need to restrict where the bit
> > > is so that we can place lockdep_map explicitly around the bit?
> >
> > Again, yuck!
>
> You mean we should never provide lockdep checking mechanism tranparently,
> but the user of bit-based lock must add lockdep_map manually, case by
> case. Right? Do I understand correctly? If so, I wonder why?

I will stop it if it cannot provide any valuable things even I wonder.
I seriously asked it since I wonder it. What do you think about my
question? Is there something I missed?

Or can I proceed it after fixing my bug you pointed?