On Wed, Aug 31, 2016 at 10:31:10AM -0400, Tejun Heo wrote: > On Wed, Aug 31, 2016 at 01:57:20AM +0530, Bhaktipriya Shridhar wrote: > > The workqueue "appldata_wq" has been replaced with an ordered dedicated > > workqueue. > > > > WQ_MEM_RECLAIM has not been set since the workqueue is not being used on > > a memory reclaim path. > > > > The adapter->work_queue queues multiple work items viz > > &adapter->scan_work, &port->rport_work, &adapter->ns_up_work, > > &adapter->stat_work, adapter->work_queue, &adapter->events.work, > > &port->gid_pn_work, &port->test_link_work. Hence, an ordered > > dedicated workqueue has been used. > > > > WQ_MEM_RECLAIM has been set to ensure forward progress under memory > > pressure. > > I have no idea what these drivers do. s390 folks, can you please shed > some light on whether these workqueues can be depended on during > memory reclaim? The appldata device driver is only needed to gather statistical data and therefore my wait when memory reclaim is in progress. The zfcp device drivers is a SCSI-over-FC device driver and hence we depend on it during memory reclaim. So setting WQ_MEM_RECLAIM is the right thing to do here. The patch looks ok, and I applied it. Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-s390" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
