Bug#329409: How do you workaround wontfix bug #329409: group and perms wrong in /dev/mapper

[Andres Salomon]

Hi,

It does seem a whole lot like libdm should be creating a control device
that has the same ownership and permissions as other block devices (a
quick scan over the ones on my udev-using systems show all block devices
in /sys/block that have corresponding entries in /dev have the
permissions that bdale described, with the obvious exception of the dm-*
devices).  Bastian, we should be following convention (even if policy
doesn't explicitly describe it) unless there's a good reason not to.