Re: [PATCH v3 0/5] RCU dyntick nesting counter cleanups for rcu -dev

[Joel Fernandes]

On Mon, May 4, 2020 at 1:15 PM Paul E. McKenney <paulmck@xxxxxxxxxx> wrote:
>
> On Mon, May 04, 2020 at 08:05:00AM -0400, Joel Fernandes (Google) wrote:
> > These patches clean up the usage of dynticks nesting counters simplifying the
> > code, while preserving the usecases.
> >
> > It is a much needed simplification, makes the code less confusing, and prevents
> > future bugs such as those that arise from forgetting that the
> > dynticks_nmi_nesting counter is not a simple counter and can be "crowbarred" in
> > common situations.
> >
> > rcutorture testing with all TREE RCU configurations succeed with
> > CONFIG_RCU_EQS_DEBUG=y and CONFIG_PROVE_LOCKING=y.
> >
> > v1->v2:
> > - Rebase on v5.6-rc6
> >
> > v2->v3:
> > - Rebase on rcu/dev with adjustments for tasks-RCU.
>
> Thank you!
>
> But this does not apply to any of v5.6-rc6, v5.7-rc1, or v5.7-rc2.
>
> Where should I be trying to apply it?
>

Hi Paul,
It is for the rcu/dev branch as mentioned in the cover letter subject
line. I thought it would reduce conflicts for you if I rebased on
that. There are conflicts with trace-RCU for example.

What do you suggest?

Thanks,

 - Joel