linux-kernel - Re: [PATCH printk v5 03/40] printk: Prepare for SRCU console list protection

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Date:   Fri, 2 Dec 2022 11:53:06 +0100
From:   Petr Mladek <pmladek@...e.com>
To:     "Paul E. McKenney" <paulmck@...nel.org>
Cc:     John Ogness <john.ogness@...utronix.de>,
        Nathan Chancellor <nathan@...nel.org>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, Miguel Ojeda <ojeda@...nel.org>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        qiang1.zhang@...el.com, sfr@...b.auug.org.au
Subject: Re: [PATCH printk v5 03/40] printk: Prepare for SRCU console list
 protection

On Thu 2022-12-01 16:21:52, Paul E. McKenney wrote:
> On Thu, Dec 01, 2022 at 11:18:44PM +0106, John Ogness wrote:
> > On 2022-12-01, "Paul E. McKenney" <paulmck@...nel.org> wrote:
> > > I therefore need to pull this into the pile for the upcoming merge
> > > window:
> > >
> > > dbc6ca150842 ("srcu: Make Tiny synchronize_srcu() check for readers")
> > >
> > > And kudos to Zqiang for a proactive fix!  ;-)
> > 
> > Yes! Great job!
> > 
> > > I will add your (John's) Tested-by, but please let me know if this is
> > > inappropriate.
> > 
> > Sure.
> > 
> > Tested-by: John Ogness <john.ogness@...utronix.de>
> 
> Applied, thank you!
> 
> The new -rcu branch is srcunmisafe.2022.12.01a.
> 
> Adding Stephen Rothwell on CC because Mr. Murphy says that this change
> will once again mess up -next.  Apologies in advance!!!

I have rebased printk/linux.git, branch rework/console-list-lock on
top of srcunmisafe.2022.12.01a, commit 51f5f78a4f804aeb73cf ("srcu:
Make Tiny synchronize_srcu() check for readers").

I hope that it will be OK.

Thanks a lot for nailing this down. It looked like a mystery to me.

Best Regards,
Petr