On 12/5/24 12:37 PM, Martin K. Petersen wrote:
For token based offload, I really don't understand the objection to storing the cookie in the bio. I fail to see the benefit of storing the cookie in the driver and then have the bio refer to something else which maps to the actual cookie returned by the storage.
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. NVMe users may prefer that REQ_OP_COPY_SRC and REQ_OP_COPY_DST bios are submitted simultaneously. Thanks, Bart.
