David, > SBC4 specifies that WRITE SAME requests with the UNMAP bit set to zero > "shall perform the specified write operation to each LBA specified by > the command". > 2237498f0b5c modified the iblock backend to call blkdev_issue_zeroout() > when handling WRITE SAME requests with UNMAP=0 and a zero data segment. > The iblock blkdev_issue_zeroout() call incorrectly provides a flags > parameter of 0 (bool false), instead of BLKDEV_ZERO_NOUNMAP. The bool > false parameter reflects the blkdev_issue_zeroout() API prior to > ee472d835c264, which was merged shortly before 2237498f0b5c. Applied to 5.7/scsi-fixes, thanks! -- Martin K. Petersen Oracle Linux Engineering