diff options
| author |   Bob Liu <bob.liu@oracle.com> | 2020-05-05 09:19:08 +0800 |
|---|---|---|
| committer |   Martin K. Petersen <martin.petersen@oracle.com> | 2020-05-26 15:40:30 -0400 |
| commit | 3ce419662dd4c9cf8db7869c4972ad51ccdf2ee3 (patch) | |
| tree | 1df71566adf05ff7cd113f1367fb70bb62025d63 /drivers/scsi | |
| parent | scsi: scsi_debug: Parser tables and code interaction (diff) | |
| download | wireguard-linux-3ce419662dd4c9cf8db7869c4972ad51ccdf2ee3.tar.xz wireguard-linux-3ce419662dd4c9cf8db7869c4972ad51ccdf2ee3.zip | |
scsi: iscsi: Register sysfs for iscsi workqueue
This patch enables setting cpu affinity through "cpumask" for iscsi
workqueues (iscsi_q_xx and iscsi_eh), so as to get performance isolation.
The max number of active worker was changed form 1 to 2, because "cpumask"
of ordered workqueue isn't allowed to change.
Link: https://lore.kernel.org/r/20200505011908.15538-1-bob.liu@oracle.com
Reviewed-by: Lee Duncan <lduncan@suse.com>
Signed-off-by: Bob Liu <bob.liu@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Diffstat (limited to 'drivers/scsi')
| -rw-r--r-- | drivers/scsi/libiscsi.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/scsi_transport_iscsi.c | 4 |
2 files changed, 6 insertions, 2 deletions
diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 874dd4beed10..e5a64d4f255c 100644 --- a/drivers/scsi/libiscsi.c +++ b/drivers/scsi/libiscsi.c @@ -2627,7 +2627,9 @@ 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 = alloc_workqueue("%s", + WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND, + 2, 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 b2a803c51288..7bbeb563ab8c 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -4728,7 +4728,9 @@ static __init int iscsi_transport_init(void) goto unregister_flashnode_bus; } - iscsi_eh_timer_workq = create_singlethread_workqueue("iscsi_eh"); + iscsi_eh_timer_workq = alloc_workqueue("%s", + WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND, + 2, "iscsi_eh"); if (!iscsi_eh_timer_workq) { err = -ENOMEM; goto release_nls; |