This patch is to replace the "[patch 1/3] add basic accounting
fields to taskstats" posted on 7/31.

This patch adds some basic accounting fields to the taskstats
struct, add a new kernel/tsacct.c to handle basic accounting
data handling upon exit. A handle is added to taskstats.c
to invoke the basic accounting data handling.


Signed-off-by: Jay Lan <jlan@sgi.com>