Re: [PATCH 2/9] rcu: Fixup noinstr warnings

From: Paul E. McKenney
Date: Wed Jun 24 2020 - 09:03:48 EST


On Wed, Jun 24, 2020 at 09:52:49AM +0200, Peter Zijlstra wrote:
> On Tue, Jun 23, 2020 at 02:44:33PM -0700, Paul E. McKenney wrote:
> > On Tue, Jun 23, 2020 at 10:46:46PM +0200, Peter Zijlstra wrote:
> > > On Fri, Jun 19, 2020 at 03:15:55PM -0700, Paul E. McKenney wrote:
> > >
> > > > Just following up because I don't see this anywhere. If I am supposed
> > > > to take this (which is more plausible now that v5.8-rc1 is out), please
> > > > let me know.
> > >
> > > Sorry, I got distracted by that NULL ptr thing, but that seems sorted
> > > now. If you don't mind taking it through your rcu/urgent tree for -rc3
> > > or so that would be awesome.
> >
> > Will do!
> >
> > Just to double-check, this is the patch from you with Message-ID
> > 20200603114051.896465666@xxxxxxxxxxxxx, correct?
> >
> > Or, if you prefer, this commit now on -rcu?
> >
> > 5fe289eccfe5 ("rcu: Fixup noinstr warnings")
> >
> > If this is the correct commit, I will rebase it on top of v5.8-rc2,
> > and if it passes tests, send it along via rcu/urgent.
>
> Ah, I was thinking about:
>
> https://lore.kernel.org/lkml/20200615162427.GI2554@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/
>
> seeing how I added that instrumentation you wanted :-), but either
> version should work for now. KCSAN is sad without this.

Glad I asked! I will substitute the one you pointed out above.

Thanx, Paul