linux-kernel - Re: [PATCH v2 0/4] RCU fixes for rcu_assign

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Message-ID: <20190321175847.GP6058@hirez.programming.kicks-ass.net>
Date:   Thu, 21 Mar 2019 18:58:47 +0100
From:   Peter Zijlstra <peterz@...radead.org>
To:     "Joel Fernandes (Google)" <joel@...lfernandes.org>
Cc:     linux-kernel@...r.kernel.org, Ingo Molnar <mingo@...hat.com>,
        Josh Triplett <josh@...htriplett.org>, keescook@...omium.org,
        kernel-hardening@...ts.openwall.com, kernel-team@...roid.com,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Luc Van Oostenryck <luc.vanoostenryck@...il.com>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Morten Rasmussen <morten.rasmussen@....com>,
        "Paul E. McKenney" <paulmck@...ux.ibm.com>, rcu@...r.kernel.org,
        Steven Rostedt <rostedt@...dmis.org>
Subject: Re: [PATCH v2 0/4] RCU fixes for rcu_assign_pointer() usage

On Wed, Mar 20, 2019 at 08:34:22PM -0400, Joel Fernandes (Google) wrote:
> This is just a resend with scheduler patches split from the driver fixes and
> Paul's Reviewed-by(s) added.
> 
> These patches fix various sparse errors ccaused as a result of the recent check
> to add rcu_check_sparse() to rcu_assign_pointer().  The errors are due to
> missing annotations. The annotations added in the series can also help avoid
> future incorrect usages and bugs so it is a good idea to do in any case.
> 
> RFC v1 -> Patch v2:
> Made changes based on Peter Zijlstra review.
> 
> Joel Fernandes (Google) (4):
> sched/cpufreq: Annotate cpufreq_update_util_data pointer with __rcu
> sched_domain: Annotate RCU pointers properly
> rcuwait: Annotate task_struct with __rcu
> sched: Annotate perf_domain pointer with __rcu
> 
> include/linux/rcuwait.h        |  2 +-
> include/linux/sched/topology.h |  4 ++--
> kernel/sched/cpufreq.c         |  2 +-
> kernel/sched/sched.h           | 18 +++++++++---------
> kernel/sched/topology.c        | 10 +++++-----
> 5 files changed, 18 insertions(+), 18 deletions(-)

Thanks Joel