Re: [PATCH v10 00/21] futex: Add support task local hash maps, FUTEX2_NUMA and FUTEX2_MPOL

[Peter Zijlstra]

On Fri, Mar 14, 2025 at 02:30:39PM +0100, Sebastian Andrzej Siewior wrote:
> On 2025-03-14 13:30:58 [+0100], Peter Zijlstra wrote:
> > > > Yeah, but sparse is stupid.
> > > 
> > > I though we like sparse.
> > 
> > I always ignore it, too much noise.
> 
> What do you suggest? Cleaning up that noise that noise or moving that
> RCU checking towards other tooling which is restricted to RCU only?
> Knowing you, you have already a plan in your cupboard but not the time :)

No real plan. Its been so long since I ran sparse I can't even remember
the shape of the noise, just that there was a _lot_ of it.

But IIRC the toolchains are starting to introduce address spaces:

  https://lkml.kernel.org/r/20250127160709.80604-1-ubizjak@xxxxxxxxx

so perhaps the __rcu thing can go that way.