On Thu, Aug 29, 2019 at 11:21:02AM -0700, Sagi Grimberg wrote: >> Yes we do, userspace should use it to order events. Does udev not >> handle that properly today? > > The problem is not ordering of events, its really about the fact that > the chardev can be removed and reallocated for a different controller > (could be a completely different discovery controller) by the time > that userspace handles the event.
The same is generally true for lot of kernel devices. We could reduce the chance by using the idr cyclic allocator.
