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From:   John Ogness <john.ogness@linutronix.de>
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To:     Sergey Senozhatsky <senozhatsky@chromium.org>,
        Marc =?utf-8?Q?Aur?= =?utf-8?Q?=C3=A8le?= La France 
        <tsi@tuyoix.net>
Cc:     Petr Mladek <pmladek@suse.com>,
        Sergey Senozhatsky <senozhatsky@chromium.org>,
        linux-kernel@vger.kernel.org, Steven Rostedt <rostedt@goodmis.org>
Subject: Re: [PATCH] printk: Export log_buf_len to userland
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 <YvmsNEYPtdOUsaxy@google.com>
Date:   Mon, 15 Aug 2022 18:09:23 +0206
Message-ID: <87wnb9pk8k.fsf@jogness.linutronix.de>
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On 2022-08-15, Sergey Senozhatsky <senozhatsky@chromium.org> wrote:
> On (22/08/10 14:25), Marc Aur=C3=A8le La France wrote:
>>=20
>> Make the kernel log's buffer size available to userland so it can be
>> used with `dmesg -s`.

This information is already available via:

    klogctl(SYSLOG_ACTION_SIZE_BUFFER, NULL, 0)

And dmesg already uses this with "dmesg -S".

John Ogness