/var/log/samba/log.nmbd {
    notifempty
    missingok
    postrotate
	/usr/bin/killall -HUP nmbd
    endscript
}

/var/log/samba/log.smbd {
    notifempty
    missingok
    postrotate
	/usr/bin/killall -HUP smbd
    endscript
}