Bart, > Does "cookie" refer to the SCSI ROD token? Storing the ROD token in > the REQ_OP_COPY_DST bio implies that the REQ_OP_COPY_DST bio is only > submitted after the REQ_OP_COPY_SRC bio has completed. Obviously. You can't issue a WRITE USING TOKEN until you have the token. > NVMe users may prefer that REQ_OP_COPY_SRC and REQ_OP_COPY_DST bios > are submitted simultaneously. What would be the benefit of submitting these operations concurrently? As I have explained, it adds substantial complexity and object lifetime issues throughout the stack. To what end? -- Martin K. Petersen Oracle Linux Engineering
