void
alq_flush(struct alq *alq)
{
int needwakeup = 0;
ALD_LOCK();
ALQ_LOCK(alq);
/*
* Pull the lever iff there is data to flush and we're
* not already in the middle of a flush operation.
*/
if (HAS_PENDING_DATA(alq) && !(alq->aq_flags & AQ_FLUSHING)) {
if (alq->aq_flags & AQ_ACTIVE)
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
} else
ALD_UNLOCK();
ALQ_UNLOCK(alq);
if (needwakeup)
wakeup_one(alq);
}
static int
ald_daemon(void *arg)
{
int needwakeup;
struct alq *alq;
daemonize("ALQ Daemon");
allow_signal(SIGKILL);
ALD_LOCK();
for (;;) {
if ((alq = LIST_FIRST(&ald_active)) == NULL)
ALD_WAIT((alq = LIST_FIRST(&ald_active)) != NULL);
if (signal_pending(current))
break;
spin_lock_irq(&alq->aq_lock);
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
spin_unlock_irq(&alq->aq_lock);
if (needwakeup)
wake_up_interruptible(&alq->aq_waitq);
ALD_LOCK();
}
ALD_UNLOCK();
return 0;
}
static void
ald_daemon(void)
{
int needwakeup;
struct alq *alq;
ald_thread = FIRST_THREAD_IN_PROC(ald_proc);
EVENTHANDLER_REGISTER(shutdown_pre_sync, ald_shutdown, NULL,
SHUTDOWN_PRI_FIRST);
ALD_LOCK();
for (;;) {
while ((alq = LIST_FIRST(&ald_active)) == NULL)
msleep(&ald_active, &ald_mtx, PWAIT, "aldslp", 0);
ALQ_LOCK(alq);
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
ALQ_UNLOCK(alq);
if (needwakeup)
wakeup(alq);
ALD_LOCK();
}
}
void
alq_flush(struct alq *alq)
{
int needwakeup = 0;
ALD_LOCK();
spin_lock_irq(&alq->aq_lock);
if (alq->aq_flags & AQ_ACTIVE) {
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
} else
ALD_UNLOCK();
spin_unlock_irq(&alq->aq_lock);
if (needwakeup)
wake_up_interruptible(&alq->aq_waitq);
}
void
alq_flush(struct alq *alq)
{
int needwakeup = 0;
ALD_LOCK();
ALQ_LOCK(alq);
if (alq->aq_flags & AQ_ACTIVE) {
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
} else
ALD_UNLOCK();
ALQ_UNLOCK(alq);
if (needwakeup)
wakeup(alq);
}
static void
ald_daemon(void)
{
int needwakeup;
struct alq *alq;
ald_thread = FIRST_THREAD_IN_PROC(ald_proc);
alq_eventhandler_tag = EVENTHANDLER_REGISTER(shutdown_pre_sync,
ald_shutdown, NULL, SHUTDOWN_PRI_FIRST);
ALD_LOCK();
for (;;) {
while ((alq = BSD_LIST_FIRST(&ald_active)) == NULL &&
!ald_shutingdown)
mtx_sleep(&ald_active, &ald_mtx, PWAIT, "aldslp", 0);
/* Don't shutdown until all active ALQs are flushed. */
if (ald_shutingdown && alq == NULL) {
ALD_UNLOCK();
break;
}
ALQ_LOCK(alq);
ald_deactivate(alq);
ALD_UNLOCK();
needwakeup = alq_doio(alq);
ALQ_UNLOCK(alq);
if (needwakeup)
wakeup_one(alq);
ALD_LOCK();
}
kproc_exit(0);
}