linux-kernel - Re: [PATCH printk v8 00/35] wire up write

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Message-ID: <ZsWxpVG8uZ9Nq26h@pathway.suse.cz>
Date: Wed, 21 Aug 2024 11:21:41 +0200
From: Petr Mladek <pmladek@...e.com>
To: John Ogness <john.ogness@...utronix.de>
Cc: 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>,
	"Paul E. McKenney" <paulmck@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Jiri Slaby <jirislaby@...nel.org>, linux-serial@...r.kernel.org,
	Russell King <linux@...linux.org.uk>,
	Tony Lindgren <tony@...mide.com>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Arnd Bergmann <arnd@...db.de>,
	Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
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	Ingo Molnar <mingo@...hat.com>, Will Deacon <will@...nel.org>,
	Waiman Long <longman@...hat.com>
Subject: Re: [PATCH printk v8 00/35] wire up write_atomic() printing

On Tue 2024-08-20 08:35:26, John Ogness wrote:
> Hi,
> 
> This is v8 of a series to wire up the nbcon consoles so that
> they actually perform printing using their write_atomic()
> callback. v7 is here [0]. For information about the motivation
> of the atomic consoles, please read the cover letter of v1 [1].
> 
> The main focus of this series:
> 
> - For nbcon consoles, always call write_atomic() directly from
>   printk() caller context for the panic CPU.
> 
> - For nbcon consoles, call write_atomic() when unlocking the
>   console lock.
> 
> - Only perform the console lock/unlock dance if legacy or boot
>   consoles are registered.
> 
> - For legacy consoles, if nbcon consoles are registered, do not
>   attempt to print from printk() caller context for the panic
>   CPU until nbcon consoles have had a chance to print the most
>   significant messages.
> 
> - Mark emergency sections. In these sections, every printk()
>   call will attempt to directly flush to the consoles using the
>   EMERGENCY priority.
> 
> This series does _not_ include threaded printing or nbcon
> drivers. Those features will be added in separate follow-up
> series.

The series seems to be ready for linux-next from my POV.

I am going to push it there once I get approval from John about
the proposed update of the commit message for the 30th patch,
see https://lore.kernel.org/r/ZsWvRETyuh1Yq80j@pathway.suse.cz

Best Regards,
Petr