Author: mav
Date: Mon Oct 21 21:16:50 2013
New Revision: 256862
URL: http://svnweb.freebsd.org/changeset/base/256862
Log:
Add comments that taskqueue_enqueue_locked() returns without the lock.
Modified:
head/sys/kern/subr_taskqueue.c
Modified: head/sys/kern/subr_taskqueue.c
==============================================================================
--- head/sys/kern/subr_taskqueue.c Mon Oct 21 21:13:01 2013
(r256861)
+++ head/sys/kern/subr_taskqueue.c Mon Oct 21 21:16:50 2013
(r256862)
@@ -237,6 +237,7 @@ taskqueue_enqueue_locked(struct taskqueu
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 *queu
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 taskque
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++;
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