CEPH_MOUNT_OPT_NOCOPYFROM
fsopt->flags &= ~CEPH_MOUNT_OPT_NOCOPYFROM;
fsopt->flags |= CEPH_MOUNT_OPT_NOCOPYFROM;
if ((fsopt->flags & CEPH_MOUNT_OPT_NOCOPYFROM) == 0)
CEPH_MOUNT_OPT_NOCOPYFROM | \