generate_unique_vnid
status = vcache_set_entry(bsdVolume, ino, generate_unique_vnid(bsdVolume));
vcache_set_entry(bsdVolume, toFatNode->de_inode, generate_unique_vnid(bsdVolume));
status = vcache_set_entry(bsdVolume, fatTarget->de_inode, generate_unique_vnid(bsdVolume));
finalInode = generate_unique_vnid(volume);
ino_t generate_unique_vnid(mount *vol);