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From: Petr Mladek <pmladek@suse.com>
To: John Ogness <john.ogness@linutronix.de>
Cc: Sergey Senozhatsky <sergey.senozhatsky.work@gmail.com>,
	Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
	Steven Rostedt <rostedt@goodmis.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH printk v2 1/5] printk: track/limit recursion
Date: Thu, 1 Apr 2021 12:00:05 +0200	[thread overview]
Message-ID: <YGWZpYE5diVLVzju@alley> (raw)
In-Reply-To: <20210330153512.1182-2-john.ogness@linutronix.de>

On Tue 2021-03-30 17:35:08, John Ogness wrote:
> Currently the printk safe buffers provide a form of recursion
> protection by redirecting to the safe buffers whenever printk() is
> recursively called.
> 
> In preparation for removal of the safe buffers, provide an alternate
> explicit recursion protection. Recursion is limited to 3 levels
> per-CPU and per-context.
> 
> Signed-off-by: John Ogness <john.ogness@linutronix.de>

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

Best Regards,
Petr

  reply	other threads:[~2021-04-01 10:00 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-30 15:35 [PATCH printk v2 0/5] printk: remove safe buffers John Ogness
2021-03-30 15:35 ` John Ogness
2021-03-30 15:35 ` John Ogness
2021-03-30 15:35 ` [PATCH printk v2 1/5] printk: track/limit recursion John Ogness
2021-04-01 10:00   ` Petr Mladek [this message]
2021-04-02  2:03     ` Sergey Senozhatsky
2021-03-30 15:35 ` [PATCH printk v2 2/5] printk: remove safe buffers John Ogness
2021-03-30 15:35   ` John Ogness
2021-03-31  7:59   ` John Ogness
2021-03-31  7:59     ` John Ogness
2021-04-01 12:21   ` Petr Mladek
2021-04-01 12:21     ` Petr Mladek
2021-04-01 13:19     ` John Ogness
2021-04-01 13:19       ` John Ogness
2021-04-01 14:17       ` Petr Mladek
2021-04-01 14:17         ` Petr Mladek
2021-04-02  2:14         ` Sergey Senozhatsky
2021-04-02  2:14           ` Sergey Senozhatsky
2021-04-06 11:17           ` Petr Mladek
2021-04-06 11:17             ` Petr Mladek
2021-04-06 11:01         ` John Ogness
2021-04-06 11:01           ` John Ogness
2021-03-30 15:35 ` [PATCH printk v2 3/5] printk: remove NMI tracking John Ogness
2021-03-30 15:35   ` John Ogness
2021-03-30 15:35   ` John Ogness
2021-04-01 14:37   ` Petr Mladek
2021-04-01 14:37     ` Petr Mladek
2021-04-01 14:37     ` Petr Mladek
2021-03-30 15:35 ` [PATCH printk v2 4/5] printk: convert @syslog_lock to mutex John Ogness
2021-04-01 15:13   ` Petr Mladek
2021-03-30 15:35 ` [PATCH printk v2 5/5] printk: syslog: close window between wait and read John Ogness

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