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

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Message-ID: <Y1pa13t0ldq+AuTh@alley>
Date:   Thu, 27 Oct 2022 12:17:59 +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,
        Greg Kroah-Hartman <gregkh@...uxfoundation.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 2022-10-19 17:01:57, 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: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr