Description of problem:

"restorecon -Rv /" produces erroneous warnings:

restorecon:  Warning no default label for /var/lib/nfs/rpc_pipefs
restorecon:  Warning no default label for /var/tmp/system-upgrade.state
restorecon:  Warning no default label for /mnt/sysimage/home
restorecon:  Warning no default label for /tmp/ssh-zyWyRllybo
restorecon:  Warning no default label for /tmp/ssh-zyWyRllybo/agent.1231
restorecon:  Warning no default label for /tmp/ssh-uZUQI9y6yG
restorecon:  Warning no default label for /tmp/ssh-uZUQI9y6yG/agent.870
restorecon:  Warning no default label for /tmp/.Test-unix
restorecon:  Warning no default label for /tmp/.XIM-unix
restorecon:  Warning no default label for /run/lvmetad.pid
restorecon:  Warning no default label for /run/lock/subsys
restorecon:  Warning no default label for /run/initramfs
restorecon:  Warning no default label for /run/initramfs/rwtab
restorecon:  Warning no default label for /run/initramfs/state
restorecon:  Warning no default label for /run/initramfs/state/var
restorecon:  Warning no default label for /run/initramfs/state/var/lib
restorecon:  Warning no default label for /run/initramfs/state/var/lib/dhclient
restorecon:  Warning no default label for /run/initramfs/state/etc
restorecon:  Warning no default label for /run/initramfs/state/etc/sysconfig
restorecon:  Warning no default label for /run/initramfs/state/etc/sysconfig/network-scripts
restorecon:  Warning no default label for /dev/hugepages/libvirt
restorecon:  Warning no default label for /dev/hugepages/libvirt/qemu
restorecon:  Warning no default label for /dev/mqueue
restorecon:  Warning no default label for /dev/pts/1
restorecon:  Warning no default label for /dev/pts/0
restorecon:  Warning no default label for /dev/pts/ptmx
restorecon reset /sys/fs/cgroup context system_u:object_r:tmpfs_t:s0->system_u:object_r:cgroup_t:s0
restorecon set context /sys/fs/cgroup->system_u:object_r:cgroup_t:s0 failed:'Read-only file system'

Version-Release number of selected component (if applicable):

selinux-policy-targeted-3.13.1-65.fc21.noarch

How reproducible:

Every time.

Steps to Reproduce:
1. restorecon -Rv /