From a1ad38a61e34a67bce75c01702d056f051feaf04 Mon Sep 17 00:00:00 2001 From: "Bryant G. Ly" Date: Tue, 16 Oct 2018 17:34:26 +0000 Subject: [PATCH] scsi: ibmvscsi_tgt: Remove target_wait_for_sess_cmd() 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. Signed-off-by: Bryant G. Ly Reviewed-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c index fac3773..2175e9e 100644 --- a/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c +++ b/drivers/scsi/ibmvscsi_tgt/ibmvscsi_tgt.c @@ -2266,7 +2266,6 @@ static int ibmvscsis_drop_nexus(struct ibmvscsis_tport *tport) /* * Release the SCSI I_T Nexus to the emulated ibmvscsis Target Port */ - target_wait_for_sess_cmds(se_sess); target_remove_session(se_sess); tport->ibmv_nexus = NULL; kfree(nexus); -- 2.7.4