linux-kernel - Re: [PATCH printk v3 6/6] printk: syslog: close window between wait and read

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Message-ID: <87o8bqava4.fsf@jogness.linutronix.de>
Date:   Mon, 28 Jun 2021 17:06:51 +0206
From:   John Ogness <john.ogness@...utronix.de>
To:     Steven Rostedt <rostedt@...dmis.org>,
        Petr Mladek <pmladek@...e.com>
Cc:     Sergey Senozhatsky <senozhatsky@...omium.org>,
        Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH printk v3 6/6] printk: syslog: close window between wait and read

On 2021-06-28, Steven Rostedt <rostedt@...dmis.org> wrote:
> Petr Mladek <pmladek@...e.com> wrote:
>> I was double checking the code and the locking is really hard to
>> follow. I would if the following approach make it easier. The main
>> trick is that the lock is taken at the beginnig and release at
>> the end. It is only temporary released around a single line
>> when needed.
>
> That's a much more common approach to locking, that may not be as
> efficient, but is much easier to keep straight, and less error prone.

OK. I will use this approach for v4. Thank you.

John