Re: [PATCH 00/15] v5 kernel core pieces refcount conversions

[Peter Zijlstra]

On Thu, Aug 31, 2017 at 04:48:00PM -0700, Kees Cook wrote:
> On Wed, Aug 30, 2017 at 5:22 AM, Elena Reshetova
> <elena.reshetova@xxxxxxxxx> wrote:
> > Now we have at least x86 support for ARCH_HAS_REFCOUNT merged and
> > arm and others on their way.
> >
> > Changes in v5:
> >  * Kees catched that the following changes in
> >    perf_event_context.refcount and futex_pi_state.refcount
> >    are not correct now when ARCH_HAS_REFCOUNT is enabled:
> >     -   WARN_ON(!atomic_inc_not_zero(refcount));
> >     +   refcount_inc(refcount);
> >    So they are now changed back to using refcount_inc_not_zero.
> 
> Thanks!
> 
> Reviewed-by: Kees Cook <keescook@xxxxxxxxxxxx>
> 
> Andrew, are you able to carry these patches in -mm, since they span a
> bunch of core kernel areas?

No.. these patches should go through the regular trees that maintain
these various parts.