If we do not specify a readonly mount, we don't need to re-mount it again.
If we do not specify a readonly mount, we don't need to
re-mount it again.

Signed-off-by: Chen Hanxiao <818f8a165c25fa146ecad28e2ef3e3fb996fa364@cn.fujitsu.com>

agx/libvirt,rlaager/libvirt,datto/libvirt,crobinso/libvirt,zippy2/libvirt,agx/libvirt,shugaoye/libvirt,andreabolognani/libvirt,VenkatDatta/libvirt,crobinso/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,olafhering/libvirt,jardasgit/libvirt,elmarco/libvirt,olafhering/libvirt,elmarco/libvirt,crobinso/libvirt,jardasgit/libvirt,jfehlig/libvirt,nertpinx/libvirt,jardasgit/libvirt,taget/libvirt,fabianfreyer/libvirt,libvirt/libvirt,eskultety/libvirt,zippy2/libvirt,datto/libvirt,VenkatDatta/libvirt,eskultety/libvirt,agx/libvirt,elmarco/libvirt,jfehlig/libvirt,nertpinx/libvirt,shugaoye/libvirt,taget/libvirt,nertpinx/libvirt,shugaoye/libvirt,jardasgit/libvirt,datto/libvirt,nertpinx/libvirt,datto/libvirt,agx/libvirt,fabianfreyer/libvirt,olafhering/libvirt,nertpinx/libvirt,rlaager/libvirt,shugaoye/libvirt,rlaager/libvirt,libvirt/libvirt,rlaager/libvirt,VenkatDatta/libvirt,crobinso/libvirt,eskultety/libvirt,libvirt/libvirt,agx/libvirt,jardasgit/libvirt,taget/libvirt,jfehlig/libvirt,libvirt/libvirt,andreabolognani/libvirt,elmarco/libvirt,zippy2/libvirt,eskultety/libvirt,andreabolognani/libvirt,shugaoye/libvirt,taget/libvirt,fabianfreyer/libvirt,datto/libvirt,eskultety/libvirt,taget/libvirt,jfehlig/libvirt,andreabolognani/libvirt,zippy2/libvirt,olafhering/libvirt,elmarco/libvirt,rlaager/libvirt,VenkatDatta/libvirt,fabianfreyer/libvirt,andreabolognani/libvirt