static void
futex_put(struct futex *f, struct waiting_proc *wp)
{
LIN_SDT_PROBE2(futex, futex_put, entry, f, wp);
FUTEX_ASSERT_LOCKED(f);
if (wp != NULL) {
if ((wp->wp_flags & FUTEX_WP_REMOVED) == 0)
TAILQ_REMOVE(&f->f_waiting_proc, wp, wp_list);
free(wp, M_FUTEX_WP);
}
FUTEXES_LOCK;
if (--f->f_refcount == 0) {
LIST_REMOVE(f, f_list);
FUTEXES_UNLOCK;
FUTEX_UNLOCK(f);
LIN_SDT_PROBE3(futex, futex_put, destroy, f->f_uaddr,
f->f_refcount, f->f_key.shared);
LINUX_CTR3(sys_futex, "futex_put destroy uaddr %p ref %d "
"shared %d", f->f_uaddr, f->f_refcount, f->f_key.shared);
umtx_key_release(&f->f_key);
FUTEX_DESTROY(f);
free(f, M_FUTEX);
LIN_SDT_PROBE0(futex, futex_put, return);
return;
}
int
linux_set_tid_address(struct thread *td, struct linux_set_tid_address_args *args)
{
struct linux_emuldata *em;
em = em_find(td);
KASSERT(em != NULL, ("set_tid_address: emuldata not found.\n"));
em->child_clear_tid = args->tidptr;
td->td_retval[0] = em->em_tid;
LINUX_CTR3(set_tid_address, "tidptr(%d) %p, returns %d",
em->em_tid, args->tidptr, td->td_retval[0]);
return (0);
}
