Since my idea of providing an accounting framework was considered
'overkill', here i submit a tiny patch just to allow CSA to
handle end-of-process (eop) situation by saving off accounting
data before a task_struct is disposed.

This patch is to modify the acct_process() in acct.c, which is
invoked from do_exit() to handle eop for BSD accounting. Now
the acct_process() wrapper will also take care of CSA, if it has
been loaded. If the CSA module has been loaded, a CSA routine
will be invoked to construct a CSA job record and to write the
record to the CSA accounting file.

This patch only touchs one file: kernel/acct.c.

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