Hello, On Thu, Oct 19, 2017 at 08:35:10AM -0700, Christoph Hellwig wrote: > On Tue, Oct 17, 2017 at 01:35:21PM -0400, Cathy Avery wrote: > > + /* > > + * Set the error handler work queue. > > + */ > > + snprintf(host_dev->work_q_name, sizeof(host_dev->work_q_name), > > + "storvsc_error_wq_%d", host->host_no); > > + host_dev->handle_error_wq = > > + create_singlethread_workqueue(host_dev->work_q_name); > > If you use alloc_ordered_workqueue directly instead of > create_singlethread_workqueue you can pass a format string and don't > need the separate allocation. > > But I'm not sure if Tejun is fine with using __WQ_LEGACY directly..
The only thing that flag does is exempting the workqueue from possible flush deadlock check as we don't know whether WQ_MEM_RECLAIM on a legacy workqueue is intentional. There's no reason to add it when converting to alloc_ordered_workqueue(). Just decide whether it needs forward progress guarantee and use WQ_MEM_RECLAIM if so. Thanks. -- tejun
