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From: Borislav Petkov <bp@alien8.de>
To: Dave Young <dyoung@redhat.com>
Cc: "Andrew Morton" <akpm@linux-foundation.org>,
	LKML <linux-kernel@vger.kernel.org>, "Franck Bui" <fbui@suse.com>,
	"Greg Kroah-Hartman" <gregkh@linuxfoundation.org>,
	"Ingo Molnar" <mingo@kernel.org>,
	"Linus Torvalds" <torvalds@linux-foundation.org>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Steven Rostedt" <rostedt@goodmis.org>,
	"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>
Subject: Re: [PATCH -v4 2/2] printk: Add kernel parameter to control writes to /dev/kmsg
Date: Mon, 18 Jul 2016 09:21:07 +0200	[thread overview]
Message-ID: <20160718072107.GA22689@nazgul.tnic> (raw)
In-Reply-To: <20160718052032.GA7911@dhcp-128-65.nay.redhat.com>

On Mon, Jul 18, 2016 at 01:20:32PM +0800, Dave Young wrote:
> Sorry, seems I do not get your point, suppose using the bis defined in your
> patch, shouldn't below work?

When you supply "printk.devkmsg=" on the kernel command line, then
devkmsg logging setting is final for the current boot because we lock it
with DEVKMSG_LOG_MASK_LOCK, see control_devkmsg() here:

https://lkml.kernel.org/r/20160716061745.15795-3-bp@alien8.de

-- 
Regards/Gruss,
    Boris.

ECO tip #101: Trim your mails when you reply.
--

  reply	other threads:[~2016-07-18  7:21 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-08  9:18 [PATCH -v4 0/2] printk.devkmsg: Ratelimit it by default Borislav Petkov
2016-07-08  9:18 ` [PATCH -v4 1/2] ratelimit: Extend to print suppressed messages on release Borislav Petkov
2016-07-14 20:29   ` Andrew Morton
2016-07-15  4:00     ` Borislav Petkov
2016-07-08  9:18 ` [PATCH -v4 2/2] printk: Add kernel parameter to control writes to /dev/kmsg Borislav Petkov
2016-07-14 20:23   ` Andrew Morton
2016-07-14 20:39     ` Steven Rostedt
2016-07-15  4:29     ` Borislav Petkov
2016-07-15  6:21   ` Dave Young
2016-07-15 12:45     ` Borislav Petkov
2016-07-16 10:44       ` Dave Young
2016-07-17  5:40         ` Borislav Petkov
2016-07-18  2:18           ` Dave Young
2016-07-18  4:44             ` Borislav Petkov
2016-07-18  5:20               ` Dave Young
2016-07-18  7:21                 ` Borislav Petkov [this message]
2016-07-18  7:38                   ` Dave Young
2016-07-18  8:08                     ` Borislav Petkov
2016-07-18  8:17                       ` Dave Young
2016-07-18  9:06                         ` Borislav Petkov
2016-07-19  0:35                           ` Dave Young
2016-07-19  6:49                             ` Borislav Petkov
2016-07-19  7:02                               ` Dave Young
2016-07-25 15:18                         ` Steven Rostedt

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