linux-kernel - Re: [PATCH printk v3 01/40] rcu: implement lockdep_rcu_enabled for !CONFIG_DEBUG_LOCK

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Date:   Tue, 8 Nov 2022 11:27:24 -0800
From:   "Paul E. McKenney" <paulmck@...nel.org>
To:     John Ogness <john.ogness@...utronix.de>
Cc:     Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org,
        Frederic Weisbecker <frederic@...nel.org>,
        Neeraj Upadhyay <quic_neeraju@...cinc.com>,
        Josh Triplett <josh@...htriplett.org>,
        Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
        Lai Jiangshan <jiangshanlai@...il.com>,
        Joel Fernandes <joel@...lfernandes.org>, rcu@...r.kernel.org
Subject: Re: [PATCH printk v3 01/40] rcu: implement lockdep_rcu_enabled for
 !CONFIG_DEBUG_LOCK_ALLOC

On Mon, Nov 07, 2022 at 08:29:01PM +0106, John Ogness wrote:
> On 2022-11-07, "Paul E. McKenney" <paulmck@...nel.org> wrote:
> >> Provide an implementation for debug_lockdep_rcu_enabled() when
> >> CONFIG_DEBUG_LOCK_ALLOC is not enabled. This allows code to check
> >> if rcu lockdep debugging is available without needing an extra
> >> check if CONFIG_DEBUG_LOCK_ALLOC is enabled.
> >> 
> >> Signed-off-by: John Ogness <john.ogness@...utronix.de>
> >
> > If you would like me to take this one, please let me know.
> 
> Yes, it would be great if you would carry this in the rcu tree. This
> printk series is already relying on the rcu tree for the NMI-safe
> work. Thanks!

Very good, I have queued it.  It is currently on -rcu branch "dev",
but will find its way to srcunmisafe.2022.10.21a in the next day or two.

							Thanx, Paul