linux-kernel - Re: [RFC 0/5] RCU fixes for rcu_assign

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Message-Id: <20190220182820.GO11787@linux.ibm.com>
Date:   Wed, 20 Feb 2019 10:28:20 -0800
From:   "Paul E. McKenney" <paulmck@...ux.ibm.com>
To:     Joel Fernandes <joel@...lfernandes.org>
Cc:     LKML <linux-kernel@...r.kernel.org>, rcu@...r.kernel.org
Subject: Re: [RFC 0/5] RCU fixes for rcu_assign_pointer usage

On Wed, Feb 20, 2019 at 01:09:52PM -0500, Joel Fernandes wrote:
> On Wed, Feb 20, 2019 at 08:42:43AM -0800, Paul E. McKenney wrote:
> > On Tue, Feb 19, 2019 at 08:11:36PM -0800, Joel Fernandes wrote:
> > > On Tue, Feb 19, 2019 at 8:08 PM Joel Fernandes (Google)
> > > <joel@...lfernandes.org> wrote:
> > > >
> > > > These patches fix various RCU API usage issues found due to sparse errors as a
> > > > result of the recent check to add rcu_check_sparse() to rcu_assign_pointer().
> > > >
> > > > This is very early RFC stage, and is only build tested. I am also only sending
> > > > to the RCU group for initial review before sending to LKML. Thanks for any feedback!
> > > >
> > > > There are still more usages that cause errors such as rbtree which I am
> > > > looking into.
> > > 
> > > Looks like it got sent to LKML anyway, ;-) That's Ok since it is
> > > prefixed as RFC.
> > 
> > As is only right and proper.  ;-)
> > 
> > I don't see an immediate problem with them, but it would be good to get
> > the relevant developers and maintainers on CC for the next version.  I
> > cannot claim to know that code very well.
> 
> Definitely will CC them next time, sorry about that. I'll stop being so shy
> but I have some scars that are still healing ;-)

If you don't get at least a few scars, you aren't trying hard enough!  ;-)

							Thanx, Paul