linux_tdfind
td1 = linux_tdfind(td, owner & FUTEX_TID_MASK, -1);
td2 = linux_tdfind(td, args->pid, -1);
tdt = linux_tdfind(td, args->pid, -1);
tdt = linux_tdfind(td, args->pid, -1);
tdt = linux_tdfind(td, uap->pid, -1);
tdt = linux_tdfind(td, uap->pid, -1);
tdt = linux_tdfind(td, args->pid, -1);
tdt = linux_tdfind(td, args->pid, -1);
tdt = linux_tdfind(td, pid, -1);
td1 = linux_tdfind(td, args->who, -1);
td1 = linux_tdfind(td, args->who, -1);
struct thread *linux_tdfind(struct thread *, lwpid_t, pid_t);
tdt = linux_tdfind(td, tid, tgid);
tdt = linux_tdfind(td, pid, -1);
targettd = linux_tdfind(td, tid, p->p_pid);
if (linux_tdfind(td, tid, p->p_pid) == NULL)