static void
ald_shutdown(void *arg, int howto)
{
struct alq *alq;
ALD_LOCK();
/* Ensure no new queues can be created. */
ald_shutingdown = 1;
/* Shutdown all ALQs prior to terminating the ald_daemon. */
while ((alq = BSD_LIST_FIRST(&ald_queues)) != NULL) {
BSD_LIST_REMOVE(alq, aq_link);
ALD_UNLOCK();
alq_shutdown(alq);
ALD_LOCK();
}
/* At this point, all ALQs are flushed and shutdown. */
/*
* Wake ald_daemon so that it exits. It won't be able to do
* anything until we mtx_sleep because we hold the ald_mtx.
*/
wakeup(&ald_active);
/* Wait for ald_daemon to exit. */
mtx_sleep(ald_proc, &ald_mtx, PWAIT, "aldslp", 0);
ALD_UNLOCK();
}
void
alq_destroy(struct alq *alq)
{
/* Drain all pending IO. */
alq_shutdown(alq);
mtx_destroy(&alq->aq_mtx);
bsd_free(alq->aq_entbuf, M_ALD);
bsd_free(alq, M_ALD);
}
static void
ald_shutdown(void *arg, int howto)
{
struct alq *alq;
ALD_LOCK();
ald_shutingdown = 1;
while ((alq = LIST_FIRST(&ald_queues)) != NULL) {
LIST_REMOVE(alq, aq_link);
ALD_UNLOCK();
alq_shutdown(alq);
ALD_LOCK();
}
ALD_UNLOCK();
}
/*
* Flush remaining data, close the file and free all resources.
*/
void
alq_close(struct alq *alq)
{
/*
* If we're already shuting down someone else will flush and close
* the vnode.
*/
if (ald_rem(alq) != 0)
return;
/*
* Drain all pending IO.
*/
alq_shutdown(alq);
mtx_destroy(&alq->aq_mtx);
free(alq->aq_first, M_ALD);
free(alq->aq_entbuf, M_ALD);
free(alq, M_ALD);
}
/*
* Flush remaining data, close the file and free all resources.
*/
void
alq_close(struct alq *alq)
{
/*
* If we're already shuting down someone else will flush and close
* the vnode.
*/
if (ald_rem(alq) != 0)
return;
/*
* Drain all pending IO.
*/
alq_shutdown(alq);
/* XXX drop module refcnt */
kfree(alq->aq_first);
kfree(alq->aq_entbuf);
kfree(alq);
}
