On Thu, Dec 06, 2018 at 02:48:12PM -0200, Thadeu Lima de Souza Cascardo wrote: > Without this exposure, lsblk will fail as it tries to find out the > device's dev_t numbers. This causes a real problem for nvme multipath > devices, as their slaves are hidden. > > Exposing them fixes the problem, even though trying to open the devices > returns an error in the case of nvme multipath. So, right now, it's the > driver's responsibility to return a failure to open hidden devices. So the problem with this is that it will cause udev to actually create the /dev/nvmeXcYnZ nodes, which due to the previous patch will always fail to open, which is a bit confusing. I guess we could live with this if we add udev rules to supress the creation or something, but in general it is a bit ugly.
