On Wed, Jun 30, 2010 at 01:25:01PM +0300, Boaz Harrosh wrote: > OK, Thanks, I see. Is it one of these operations, (like we have in OSD) where > the CDB information spills into the payload? like the scatter-gather and extent > lists and such. For UNMAP the payload is a list of block number / length pairs, while the CDB itself doesn't contain any information like that. It's a rather awkward command. > Do we actually use a WRITE_SAME which is not zero? for what use? The kernel doesn't issue any WRITE SAME without the unmap bit set. -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel
