linux-kernel - Re: [PATCH printk v2 29/38] printk: console_flush_on

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Message-ID: <Y1gBk7jtZJ23PYkc@alley>
Date:   Tue, 25 Oct 2022 17:32:35 +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
Subject: Re: [PATCH printk v2 29/38] printk: console_flush_on_panic: use srcu
 console list iterator

On Wed 2022-10-19 17:01:51, John Ogness wrote:
> With SRCU it is now safe to traverse the console list, even if
> the console_trylock() failed. However, overwriting console->seq
> when console_trylock() failed is still an issue.
> 
> Switch to SRCU iteration and document remaining issue with
> console->seq.
> 
> Signed-off-by: John Ogness <john.ogness@...utronix.de>

Reviewed-by: Petr Mladek <pmladek@...e.com>

Best Regards,
Petr