Symbol: umtx_pi_claim
sys/compat/linux/linux_futex.c
467
error = umtx_pi_claim(pi, td);
sys/kern/kern_umtx.c
2349
error = umtx_pi_claim(pi, td);
sys/sys/umtxvar.h
226
int umtx_pi_claim(struct umtx_pi *, struct thread *);