Re: [RFC 0/5] RCU fixes for rcu_assign_pointer usage

From: Paul E. McKenney
Date: Wed Feb 20 2019 - 11:42:50 EST


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@xxxxxxxxxxxxxxxxx> 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.

Thanx, Paul