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Date:   Thu, 5 Sep 2019 17:38:21 +0200 (CEST)
From:   Thomas Gleixner <tglx@linutronix.de>
To:     Peter Zijlstra <peterz@infradead.org>
cc:     Petr Mladek <pmladek@suse.com>,
        John Ogness <john.ogness@linutronix.de>,
        Andrea Parri <andrea.parri@amarulasolutions.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Brendan Higgins <brendanhiggins@google.com>,
        Linus Torvalds <torvalds@linux-foundation.org>,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [RFC PATCH v4 0/9] printk: new ringbuffer implementation
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On Thu, 5 Sep 2019, Peter Zijlstra wrote:
> On Thu, Sep 05, 2019 at 03:05:13PM +0200, Petr Mladek wrote:
> > The alternative lockless approach is still more complicated than
> > the serialized one. But I think that it is manageable thanks to
> > the simplified state tracking. And I might safe use some pain
> > in the long term.
> 
> I've not looked at it yet, sorry. But per the above argument of needing
> the CPU serialization _anyway_, I don't see a compelling reason not to
> use it.
> 
> It is simple, it works. Let's use it.
> 
> If you really fancy a multi-writer buffer, you can always switch to one
> later, if you can convince someone it actually brings benefits and not
> just head-aches.

Can we please grab one of the TBD slots at kernel summit next week, sit
down in a room and hash that out?

Thanks,

	tglx