Mike Snitzer <snitzer@xxxxxxxxxx> writes: > Would be very useful, particularly for testing, if > drivers/scsi/scsi_debug.c were updated to support WRITE ZEROES. There is no WRITE ZEROES in SCSI. You should be able to get the right behavior with lbpws=1 lbprz=1. -- Martin K. Petersen Oracle Linux Engineering -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel