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Subjectemit loglevel for printk output
Hi,

I propose a character before each logged line so that one can easily grep
through dmesg output for errors/warnings/etc.
It's just a suggestion, maybe there are better ways. E.g. iirc openbsd
uses colors.
errors/criticals/fatals: -
warnings: !
debugging: #
info: +

Signed-off: folkert van heusden <folkert@vanheusden.com>

--- linux-source-2.6.27/kernel/printk.c.org 2008-10-30 17:07:02.000000000 +0100
+++ linux-source-2.6.27/kernel/printk.c 2008-10-30 21:07:17.000000000 +0100
@@ -730,6 +730,16 @@
printed_len += 3;
new_text_line = 0;

+ if (current_log_level <= (KERN_ERR[1] - '0'))
+ emit_log_char('-');
+ else if (current_log_level == (KERN_WARNING[1] - '0'))
+ emit_log_char('!');
+ else if (current_log_level == (KERN_DEBUG[1] - '0'))
+ emit_log_char('#');
+ else
+ emit_log_char('+');
+ emit_log_char(' ');
+
if (printk_time) {
/* Follow the token with the time */
char tbuf[50], *tp;

Folkert van Heusden

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