linux-kernel - Re: [PATCH printk v2 35/38] tty: tty_io: use console_list

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Message-ID: <Y1D8Pg9PS17BDg6R@kroah.com>
Date:   Thu, 20 Oct 2022 09:43:58 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.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, Jiri Slaby <jirislaby@...nel.org>
Subject: Re: [PATCH printk v2 35/38] tty: tty_io: use console_list_lock for
 list synchronization

On Wed, Oct 19, 2022 at 05:01:57PM +0206, John Ogness wrote:
> show_cons_active() uses the console_lock to gather information
> on registered consoles. It requires that no consoles are unregistered
> until it is finished. The console_list_lock should be used because
> list synchronization repsponsibility will be removed from the
> console_lock in a later change.
> 
> Note, the console_lock is still needed to stop console printing.
> 
> Signed-off-by: John Ogness <john.ogness@...utronix.de>

Reviewed-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>