The first trace format was pretty noisy. Now the time is printed in a
gettimeofday timeval so that it can be correlated with other time
stamps. The super block gets a counter instead of a pointer. The pid
and cpu are printed without a lavel and we add the line number so that
it's easy to grep the source to find a trace caller.
Signed-off-by: Zach Brown <zab@versity.com>