On Fri, 2005-11-04 at 12:30 -0800, Matthew Dharm wrote: > Would the block layer really have to change much if the commands only come > from SG_IO? Yes, since the CDB[1] addition is done in scsi_dispatch_cmd() all you really have access to there is the command (and through it the device and host). So a blacklist would be not too much work to implement but actually making the SG_IO flag work would be quite large because it has to be connected first to the request and then to the command. James - : send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html