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); }