+/**
+ * scsi_noretry_cmd - determinte if command should be failed fast
+ * @scmd: SCSI cmd to examine.
+ */
+int scsi_noretry_cmd(struct scsi_cmnd *scmd)
+{
+ switch (host_byte(scmd->result)) {
+ case DID_OK:
+ break;
+ case DID_BUS_BUSY:
+ return blk_failfast_transport(scmd->request);
+ case DID_PARITY:
+ return blk_failfast_dev(scmd->request);
+ case DID_ERROR:
+ if (msg_byte(scmd->result) == COMMAND_COMPLETE &&
+ status_byte(scmd->result) == RESERVATION_CONFLICT)
+ return 0;
+ /* fall through */
+ case DID_SOFT_ERROR:
+ return blk_failfast_driver(scmd->request);
+ }
+
+ switch (status_byte(scmd->result)) {
+ case CHECK_CONDITION:
+ /*
+ * assume caller has checked sense and determinted
+ * the check condition was retryable.
+ */
+ return blk_failfast_dev(scmd->request);
+ }
+
+ return 0;
+}
+