On Sat, Mar 2, 2013 at 7:17 PM, Greg Kroah-Hartman <gre...@linuxfoundation.org> wrote: > On Fri, Mar 01, 2013 at 07:24:21PM -0800, Tejun Heo wrote: >> Kay tells me the most appropriate place to expose workqueues to >> userland would be /sys/devices/virtual/workqueues/WQ_NAME which is >> symlinked to /sys/bus/workqueue/devices/WQ_NAME and that we're lacking >> a way to do that outside of driver core as virtual_device_parent() >> isn't exported and there's no inteface to conveniently create a >> virtual subsystem. > > I'm almost afraid to ask what you want to export to userspace for a > workqueue that userspace would care about... > > If you create a subsystem, the devices will show up under the virtual > "bus" if you don't give them a parent, so this patch shouldn't be > needed, unless you are abusing the driver model. What am I missing > here?
Unfortunately, the parent == NULL --> /sys/devices/virtual/<subsys>/ we have only implemented for classes, and not for buses. We should fix that. Kay -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
