040000 tree 3f3f27d3fa22de6b69657ad51fef311673e77760	cmpxchg-local
040000 tree 5fe4e9870068d74578f83797dcf1d7901741c214	lockdep
040000 tree c3988059aa04aa913097f01a983c944b36ffee24	queued-rwlocks
040000 tree 4a11c7698d3af254cc22429117d673bdb80b3701	queued-spinlocks
040000 tree d5762fb4714a4a56dd9296731a3bf32b4850657a	rwsem-optimized