This is an attempt to fix the broken console_loglevel in kernel/printk.c
that Keith Owens reported to the list some hours ago.

Instead of the four different _loglevel variables it adds a
console_printk array to hold the four values - that should be safe.

I have tested this as far as

a) it compiles
b) it boots
c) it has not exploded yet after more than an hour of use
d) "cat /proc/sys/kernel/printk" output looks sane both with and without
the patch
e) changing console_loglevel with "ALT-Sysrq-<number>" works and is
correctly reflected in /proc/sys/kernel/printk

Randy Dunlap was kind enough to take a look at the patch and thought it
looked ok, so I'm now submitting it to a broader audience to get some
more feedback before I try to send this off to Linux and/or Alan.

If nobody seems to screams at it too badly, then I'll make a version
against -ac as well and send it off to Linus and Alan for them to look
at and hopefully include in the next kernel.

The patch is against 2.4.13-pre3  and is attached as
"2.4.13-pre3-console_loglevel.patch".


Best regards,
Jesper Juhl
juhl@eisenstein.dk