This patch enable setting cpu affinity through "cpumask" for below
scsi/iscsi workqueues, so as to get better isolation.
- scsi_wq_*
- scsi_tmf_*
- iscsi_q_xx
- iscsi_eh
Signed-off-by: Bob Liu <bob....@oracle.com>
---
drivers/scsi/hosts.c | 4 ++--
drivers/scsi/libiscsi.c | 2 +-
drivers/scsi/scsi_transport_iscsi.c | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/drivers/scsi/hosts.c b/drivers/scsi/hosts.c
index 1d669e4..4b9f80d 100644
--- a/drivers/scsi/hosts.c
+++ b/drivers/scsi/hosts.c
@@ -272,7 +272,7 @@ int scsi_add_host_with_dma(struct Scsi_Host *shost, struct
device *dev,
if (shost->transportt->create_work_queue) {
snprintf(shost->work_q_name, sizeof(shost->work_q_name),
"scsi_wq_%d", shost->host_no);
- shost->work_q = create_singlethread_workqueue(
+ shost->work_q = create_singlethread_workqueue_noorder(
shost->work_q_name);
if (!shost->work_q) {
error = -EINVAL;
@@ -487,7 +487,7 @@ struct Scsi_Host *scsi_host_alloc(struct scsi_host_template
*sht, int privsize)
}
shost->tmf_work_q = alloc_workqueue("scsi_tmf_%d",
- WQ_UNBOUND | WQ_MEM_RECLAIM,
+ WQ_UNBOUND | WQ_MEM_RECLAIM | WQ_SYSFS |
__WQ_ORDERED_DISABLE,
1, shost->host_no);
if (!shost->tmf_work_q) {
shost_printk(KERN_WARNING, shost,
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c
index 70b99c0..6808cf3 100644
--- a/drivers/scsi/libiscsi.c
+++ b/drivers/scsi/libiscsi.c
@@ -2627,7 +2627,7 @@ struct Scsi_Host *iscsi_host_alloc(struct
scsi_host_template *sht,
if (xmit_can_sleep) {
snprintf(ihost->workq_name, sizeof(ihost->workq_name),
"iscsi_q_%d", shost->host_no);
- ihost->workq = create_singlethread_workqueue(ihost->workq_name);
+ ihost->workq =
create_singlethread_workqueue_noorder(ihost->workq_name);
if (!ihost->workq)
goto free_host;
}
diff --git a/drivers/scsi/scsi_transport_iscsi.c
b/drivers/scsi/scsi_transport_iscsi.c
index dfc726f..d07a0e4 100644
--- a/drivers/scsi/scsi_transport_iscsi.c
+++ b/drivers/scsi/scsi_transport_iscsi.c
@@ -4602,7 +4602,7 @@ static __init int iscsi_transport_init(void)
goto unregister_flashnode_bus;
}
- iscsi_eh_timer_workq = create_singlethread_workqueue("iscsi_eh");
+ iscsi_eh_timer_workq =
create_singlethread_workqueue_noorder("iscsi_eh");
if (!iscsi_eh_timer_workq) {
err = -ENOMEM;
goto release_nls;
--
2.9.5
