MATCH_NODE
if (match == MATCH_NODE) {
rules[0].flags = MATCH_NODE | MATCH_UNCACHED; /* disks */
rules[2].flags = MATCH_NODE | MATCH_UNCACHED; /* generic scsi */
rules[0].flags = MATCH_NODE | MATCH_UNCACHED; /* disks */
rules[2].flags = MATCH_NODE | MATCH_UNCACHED; /* generic scsi */