Function kthread_exit

freebsd/kern/kern_kthread.c:334–368

}

void
kthread_exit(void)
{
	struct proc *p;
	struct thread *td;

	td = curthread;
	p = td->td_proc;

#ifdef HWPMC_HOOKS
	if (PMC_SYSTEM_SAMPLING_ACTIVE())
		PMC_CALL_HOOK_UNLOCKED(td, PMC_FN_THR_EXIT_LOG, NULL);
#endif
	/* A module may be waiting for us to exit. */
	wakeup(td);

	/*
	 * The last exiting thread in a kernel process must tear down
	 * the whole process.
	 */
	PROC_LOCK(p);
	if (p->p_numthreads == 1) {
		PROC_UNLOCK(p);
		kproc_exit(0);
	}

	if (p->p_sysent->sv_ontdexit != NULL)
		p->p_sysent->sv_ontdexit(td);

	tidhash_remove(td);
	umtx_thread_exit(td);
	tdsigcleanup(td);
	PROC_SLOCK(p);
	thread_exit();
}

/*
 * Advise a kernel process to suspend (or resume) in its main loop.