From: Bob Liu Date: Tue, 5 May 2020 01:19:08 +0000 (+0800) Subject: scsi: iscsi: Register sysfs for iscsi workqueue X-Git-Tag: v5.10.7~2312^2~36 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=3ce419662dd4c9cf8db7869c4972ad51ccdf2ee3;p=platform%2Fkernel%2Flinux-rpi.git 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 Signed-off-by: Bob Liu Signed-off-by: Martin K. Petersen --- diff --git a/drivers/scsi/libiscsi.c b/drivers/scsi/libiscsi.c index 874dd4b..e5a64d4 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 b2a803c..7bbeb56 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;