/var/log/samba {
    postrotate
	/usr/bin/killall -HUP smbd
    endrotate
}

/var/log/samba.nmb {
    postrotate
	/usr/bin/killall -HUP nmbd
    endrotate
}

/var/log/samba.smb {
    postrotate
	/usr/bin/killall -HUP smbd
    endrotate
}