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Date: Sun, 27 Feb 2005 03:36:29 +0100
From: Matthias Kunze <Matthias.Kunze@gmx-topmail.de>
To: Andrew Morton <akpm@osdl.org>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] config option for default loglevel
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Am Sat, 26 Feb 2005 18:15:52 -0800 schrieb Andrew Morton <akpm@osdl.org>:
 
> I don't see a need for the compile-time option now..
> 

Well i would prefer to also have a compile-time option, but only a boot
paramter will also do the job.

diff -Naur linux-2.6.10/Documentation/kernel-parameters.txt linux-2.6.10-new/Documentation/kernel-parameters.txt
--- linux-2.6.10/Documentation/kernel-parameters.txt    2005-02-27 02:47:09.000000000 +0100
+++ linux-2.6.10-new/Documentation/kernel-parameters.txt        2005-02-27 02:52:36.000000000 +0100
@@ -634,6 +634,20 @@
        logibm.irq=     [HW,MOUSE] Logitech Bus Mouse Driver
                        Format: <irq>

+        loglevel=       All Kernel Messages with a loglevel smaller than the
+                        console loglevel will be printed to the console. It can
+                        also be changed with klogd or other programs. The
+                        loglevels are defined as follows:
+
+                        0 (KERN_EMERG)        system is unusable
+                        1 (KERN_ALERT)        action must be taken immediately
+                        2 (KERN_CRIT)         critical conditions
+                        3 (KERN_ERR)          error conditions
+                        4 (KERN_WARNING)      warning conditions
+                        5 (KERN_NOTICE)       normal but significant condition
+                        6 (KERN_INFO)         informational
+                        7 (KERN_DEBUG)        debug-level messages
+
        log_buf_len=n   Sets the size of the printk ring buffer, in bytes.
                        Format is n, nk, nM.  n must be a power of two.  The
                        default is set in kernel config.
diff -Naur linux-2.6.10/init/main.c linux-2.6.10-new/init/main.c
--- linux-2.6.10/init/main.c    2005-02-27 02:48:32.000000000 +0100
+++ linux-2.6.10-new/init/main.c        2005-02-27 02:39:08.000000000 +0100
@@ -209,6 +209,14 @@
 __setup("debug", debug_kernel);
 __setup("quiet", quiet_kernel);

+static int __init loglevel(char *str)
+{
+        get_option(&str, &console_loglevel);
+        return 1;
+}
+
+__setup("loglevel=", loglevel);
+
 /*
  * Unknown boot options get handed to init, unless they look like
  * failed parameters
-
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