Re: [PATCH RFC] Documentation: RCU: Clarify comment about fanout

From: Paul E. McKenney
Date: Sat Sep 22 2018 - 20:41:24 EST


On Sat, Sep 22, 2018 at 07:38:05PM -0400, Joel Fernandes wrote:
> On Sat, Sep 22, 2018 at 9:46 AM Paul E. McKenney <paulmck@xxxxxxxxxxxxx> wrote:
> [...]
> > > I have a few more as well, I'll send them out soon.
> >
> > I do have on my list to update this document based on the changes in
> > -rcu, which among other things eliminate the rcu_dynticks structure
> > and make it so there is only one rcu_state structure in a given
> > running system.
> >
> > If you are crazy enough to want to make the corresponding changes,
> > I would welcome the patches (and would be happy to help with editing,
> > grammar, and soforth. The potential advantage to you is familiarlzation
> > with the new version of the code.
> >
> > This is not a small amount of work, so please give it some thought
> > before saying "yes". (In contrast, I would of course understand and
> > respect an immediate "no".)
>
> I thought about this and I'd be happy to do it as long as you don't
> mind me asking questions about parts I don't understand (which
> shouldn't be a problem from my past experience ;-)). I am spending
> time understanding the code anyway so I'd rather update the main
> documentation than my own notes for the benefit of everyone ;-) As you
> said, it'll help familiarization of the code. Btw I got rid of those
> extra rcu_state externs too, I'll send that patch out today and
> continue working on things next week...

If you continue to find and fix issues like your three most recent
patches, I really cannot complain about a few questions, now can I? ;-)

So please keep both the patches and questions coming!

Thanx, Paul