I think that this is a very interesting patch. Just for background, NetApp has proposed some extensions for a similar SCSI mechanism aimed more at large arrays which want to do "thin provisioned LUNS":
08-149R0 2008/03/11 SBC - Thin Provisioning
http://www.t10.org/ftp/t10/document.08/08-149r0.pdf 08-070R0 2008/01/14 Thin Provisioning Concept Proposal http://www.t10.org/ftp/t10/document.08/08-070r0.pdf ric -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
