c7616abcb2
So far this only prevented the creation of the toplevel directory. This does not cover all problem cases, particularly when said directory is supposed to be a mount point, including NFS and glusterfs beside ZFS. The directory based storages we have already use mkpath whenever they need to create files, and for actions on files which are supposed to exist it's fine if it errors out. So it should also be safe to skip the creation of standard subdirectories in activate_storage(). Additionally NFS and glusterfs storages should also accept the mkdir option as they otherwise may exhibit similar issues, eg. when an NFS storage is mounted onto a directory inside a ZFS subvolume.