Thanks Casper. Used macro 'PATH_KSM' and removed braces. And tested the 
same.

ksm03, ksm03_1:
Before patch:
...
ksm03       0  TINFO  :  KSM merging...
ksm03       1  TBROK  :  open: errno=ENOENT(2): No such file or directory
ksm03       2  TBROK  :  Remaining cases broken
ksm03       0  TINFO  :  child 1 stops.
ksm03       1  TBROK  :  unexpected signal 1 received (pid = 46142).
ksm03       2  TBROK  :  Remaining cases broken
...

After patch:
...
ksm03       1  TCONF  :  KSM configuration is not enabled
ksm03       2  TCONF  :  Remaining cases not appropriate for configuration
...

Signed-off-by: Nageswara R Sastry <rnsastry@linux.vnet.ibm.com>

-- 
Regards
R.Nageswara Sastry