block/xen-blkback/blkback.c

450 			     enum req_op operation)
455 	if ((operation != REQ_OP_READ) && vbd->readonly)
683 		      pending_req->operation, pending_req->status);
908 	                   (pending_req->operation != BLKIF_OP_READ));
1005 	make_response(ring, req->u.discard.id, req->operation, status);
1015 	make_response(ring, req->u.other.id, req->operation,
1041 	if (pending_req->operation == BLKIF_OP_FLUSH_DISKCACHE &&
1046 	} else if (pending_req->operation == BLKIF_OP_WRITE_BARRIER &&
1052 		pr_debug("Buffer not up-to-date at end of operation,"
1080 	dst->operation = READ_ONCE(src->operation);
1082 	switch (dst->operation) {
1133 	dst->operation = READ_ONCE(src->operation);
1135 	switch (dst->operation) {
1243 		switch (req.operation) {
1300 	enum req_op operation;
1307 	req_operation = req->operation == BLKIF_OP_INDIRECT ?
1308 			req->u.indirect.indirect_op : req->operation;
1310 	if ((req->operation == BLKIF_OP_INDIRECT) &&
1313 		pr_debug("Invalid indirect operation (%u)\n", req_operation);
1320 		operation = REQ_OP_READ;
1324 		operation = REQ_OP_WRITE;
1332 		operation = REQ_OP_WRITE;
1336 		operation = 0; /* make gcc happy */
1342 	nseg = req->operation == BLKIF_OP_INDIRECT ?
1346 	    unlikely((req->operation != BLKIF_OP_INDIRECT) &&
1348 	    unlikely((req->operation == BLKIF_OP_INDIRECT) &&
1359 	pending_req->operation = req_operation;
1363 	if (req->operation != BLKIF_OP_INDIRECT) {
1384 	if (xen_vbd_translate(&preq, ring->blkif, operation) != 0) {
1386 			 operation == REQ_OP_READ ? "read" : "write",
1435 					operation | operation_flags,
1446 	/* This will be hit if the operation was a flush or discard. */
1450 		bio = bio_alloc(preq.bdev, 0, operation | operation_flags,
1466 	if (operation == REQ_OP_READ)
1468 	else if (operation == REQ_OP_WRITE)
1487  * Put a response on the ring on how the operation fared.
1518 	resp->operation = op;