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Also after commit 5ff9d8a65ce80efb509ce4e8051394e9ed2cd942 vfs: Lock in place mounts from more privileged users, unprivileged user has no rights to umount the mounts that inherited from parent mountns. right now, I have no good idea to fix this problem, we need to do more research. this patch just skip unmounting these mounts for shared root. BTW, I think when libvirt lxc enables user namespace, the configuation that shares root with host is very rara. Signed-off-by: Gao feng <gaofeng@cn.fujitsu.com>
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>