On Sun, Jun 12, 2011 at 10:51:41AM +0300, Michael S. Tsirkin wrote: > For example, if the driver is crazy enough to put > all write requests on one queue and all barriers > on another one, how is the device supposed to ensure > ordering? There is no such things as barriers in SCSI. The thing that comes closest is ordered tags, which neither Linux nor any mainstream OS uses, and which we don't have to (and generally don't want to) implement. -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
