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Add comments that taskqueue_enqueue_locked() returns without the lock.

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This commit is contained in:
Alexander Motin 2013-10-21 21:16:50 +00:00
parent 1f40dbc854
commit 18093155a3
1 changed files with 4 additions and 0 deletions
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4
sys/kern/subr_taskqueue.c
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@ -237,6 +237,7 @@ taskqueue_enqueue_locked(struct taskqueue *queue, struct task *task)
if ((queue->tq_flags & TQ_FLAGS_UNLOCKED_ENQUEUE) == 0)
TQ_UNLOCK(queue);
/* Return with lock released. */
return (0);
}
int
@ -246,6 +247,7 @@ taskqueue_enqueue(struct taskqueue *queue, struct task *task)
TQ_LOCK(queue);
res = taskqueue_enqueue_locked(queue, task);
/* The lock is released inside. */
return (res);
}
@ -262,6 +264,7 @@ taskqueue_timeout_func(void *arg)
timeout_task->f &= ~DT_CALLOUT_ARMED;
queue->tq_callouts--;
taskqueue_enqueue_locked(timeout_task->q, &timeout_task->t);
/* The lock is released inside. */
}
int
@ -278,6 +281,7 @@ taskqueue_enqueue_timeout(struct taskqueue *queue,
res = timeout_task->t.ta_pending;
if (ticks == 0) {
taskqueue_enqueue_locked(queue, &timeout_task->t);
/* The lock is released inside. */
} else {
if ((timeout_task->f & DT_CALLOUT_ARMED) != 0) {
res++;