For consoles like netconsole and blockconsole the loglevel filtering really doesn't make any sense. If a line gets printed at all, please send it down to that console, no questions asked.
For vga_con, it is a completely different matter, as the user sitting in front of his console could get spammed by messages while trying to login or similar. So ignore_loglevel doesn't work as a one-size-fits-all approach. Add a per-console flag instead so that netconsole and blockconsole can opt-in. Signed-off-by: Joern Engel <jo...@logfs.org> --- include/linux/console.h | 1 + kernel/printk.c | 5 +++-- 2 files changed, 4 insertions(+), 2 deletions(-) diff --git a/include/linux/console.h b/include/linux/console.h index dedb082..eed92ad 100644 --- a/include/linux/console.h +++ b/include/linux/console.h @@ -116,6 +116,7 @@ static inline int con_debug_leave(void) #define CON_BOOT (8) #define CON_ANYTIME (16) /* Safe to call when cpu is offline */ #define CON_BRL (32) /* Used for a braille device */ +#define CON_ALLDATA (64) /* per-console ignore_loglevel */ struct console { char name[16]; diff --git a/kernel/printk.c b/kernel/printk.c index 267ce78..5221c59 100644 --- a/kernel/printk.c +++ b/kernel/printk.c @@ -1261,8 +1261,6 @@ static void call_console_drivers(int level, const char *text, size_t len) trace_console(text, 0, len, len); - if (level >= console_loglevel && !ignore_loglevel) - return; if (!console_drivers) return; @@ -1276,6 +1274,9 @@ static void call_console_drivers(int level, const char *text, size_t len) if (!cpu_online(smp_processor_id()) && !(con->flags & CON_ANYTIME)) continue; + if (level >= console_loglevel && !ignore_loglevel && + !(con->flags & CON_ALLDATA)) + continue; con->write(con, text, len); } } -- 1.7.10.4 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/