Use the cachefslog -h option to stop logging.
$ cachefslog -h /mount-point  | 
The following example shows how to stop logging on /home/stuff.
$ cachefslog -h /home/stuff not logged: /home/stuff  | 
If you get a system response other than the one specified here, you did not successfully stop logging. Check to see if you are using the correct log file name and mount point.