Bryant,
> There is currently a bug with the driver where there is never a call
> to target_sess_cmd_list_set_waiting(), it only called
> target_wait_for_sess_cmd(), which basically means that the
> sess_wait_list would always be empty.
>
> Thus, list_empty(&sess->sess_wait_list) = true, (eg: no se_cmd I/O is
> quiesced, because no se_cmd in sess_wait_list), since commit
> 712db3eb2c35 ("scsi: ibmvscsis: Properly deregister target sessions")
> in 4.9.y code.
>
> ibmvscsi_tgt does not remove the I_T Nexus when a VM is active so we
> can fix this issue by removing the call to target_wait_for_sess_cmd()
> altogether.
Applied to 4.20/scsi-queue, thanks!
--
Martin K. Petersen Oracle Linux Engineering
