Exemple #1
0
COMPAT_SYSCALL_DEFINE2(getitimer, int, which,
		       struct compat_itimerval __user *, it)
{
	struct itimerval kit;
	int error = do_getitimer(which, &kit);

	if (!error && put_compat_itimerval(it, &kit))
		error = -EFAULT;
	return error;
}
Exemple #2
0
asmlinkage long compat_sys_getitimer(int which,
		struct compat_itimerval __user *it)
{
	struct itimerval kit;
	int error;

	error = do_getitimer(which, &kit);
	if (!error && put_compat_itimerval(it, &kit))
		error = -EFAULT;
	return error;
}
Exemple #3
0
SYSCALL_DEFINE2(getitimer, int, which, struct itimerval __user *, value)
{
	int error = -EFAULT;
	struct itimerval get_buffer;

	if (value) {
		error = do_getitimer(which, &get_buffer);
		if (!error &&
		    copy_to_user(value, &get_buffer, sizeof(get_buffer)))
			error = -EFAULT;
	}
	return error;
}
Exemple #4
0
/* SMP: Only we modify our itimer values. */
asmlinkage long sys_getitimer(int which, struct itimerval __user *value)
{
	int error = -EFAULT;
	struct itimerval get_buffer;

	if (value) {
		error = do_getitimer(which, &get_buffer);
		if (!error &&
		    copy_to_user(value, &get_buffer, sizeof(get_buffer)))
			error = -EFAULT;
	}
	return error;
}
Exemple #5
0
int do_setitimer(int which, struct itimerval *value, struct itimerval *ovalue)
{
	register unsigned long i, j;
	int k;

	i = timeval_to_jiffies(&value->it_interval);
	j = timeval_to_jiffies(&value->it_value);
	if (ovalue && (k = do_getitimer(which, ovalue)) < 0)
		return k;
	ltt_ev_timer(LTT_EV_TIMER_SETITIMER, which, i, j);
	switch (which) {
		case ITIMER_REAL:
			del_timer_sync(&current->real_timer);
			current->it_real_value = j;
			current->it_real_incr = i;
			if (!j)
				break;
			if (j > (unsigned long) LONG_MAX)
				j = LONG_MAX;
			i = j + jiffies;
			current->real_timer.expires = i;
			add_timer(&current->real_timer);
			break;
		case ITIMER_VIRTUAL:
			if (j)
				j++;
			current->it_virt_value = j;
			current->it_virt_incr = i;
			break;
		case ITIMER_PROF:
			if (j)
				j++;
			current->it_prof_value = j;
			current->it_prof_incr = i;
			break;
		default:
			return -EINVAL;
	}
	return 0;
}