On 7/2/20 10:16 PM, Bob Liu wrote:
> Register sysfs for workqueue iscsi_destroy, so that users can set cpu affinity
> through "cpumask" for this workqueue to get better isolation in cloud
> multi-tenant scenario.
>
> This patch unfolded create_singlethread_workqueue(), added WQ_SYSFS and drop
> __WQ_ORDERED_EXPLICIT since __WQ_ORDERED_EXPLICIT workqueue isn't allowed to
> change "cpumask".
>
> Suggested-by: Mike Christie <michael.christie@xxxxxxxxxx>
> Signed-off-by: Bob Liu <bob.liu@xxxxxxxxxx>
> ---
> drivers/scsi/scsi_transport_iscsi.c | 4 +++-
> 1 file changed, 3 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c
> index 7ae5024..aa8d4a3 100644
> --- a/drivers/scsi/scsi_transport_iscsi.c
> +++ b/drivers/scsi/scsi_transport_iscsi.c
> @@ -4766,7 +4766,9 @@ static __init int iscsi_transport_init(void)
> goto release_nls;
> }
>
> - iscsi_destroy_workq = create_singlethread_workqueue("iscsi_destroy");
> + iscsi_destroy_workq = alloc_workqueue("%s",
> + WQ_SYSFS | __WQ_LEGACY | WQ_MEM_RECLAIM | WQ_UNBOUND,
> + 1, "iscsi_destroy");
> if (!iscsi_destroy_workq) {
> err = -ENOMEM;
> goto destroy_wq;
>
Reviewed-by: Lee Duncan <lduncan@xxxxxxxx>
