diff options
Diffstat (limited to 'kernel/sched/swait.c')
-rw-r--r-- | kernel/sched/swait.c | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/kernel/sched/swait.c b/kernel/sched/swait.c index b6fb2c3b3ff7..55d2a044399e 100644 --- a/kernel/sched/swait.c +++ b/kernel/sched/swait.c @@ -32,6 +32,25 @@ void swake_up_locked(struct swait_queue_head *q) } EXPORT_SYMBOL(swake_up_locked); +void swake_up_all_locked(struct swait_queue_head *q) +{ + struct swait_queue *curr; + int wakes = 0; + + while (!list_empty(&q->task_list)) { + + curr = list_first_entry(&q->task_list, typeof(*curr), + task_list); + wake_up_process(curr->task); + list_del_init(&curr->task_list); + wakes++; + } + if (pm_in_action) + return; + WARN(wakes > 2, "complete_all() with %d waiters\n", wakes); +} +EXPORT_SYMBOL(swake_up_all_locked); + void swake_up(struct swait_queue_head *q) { unsigned long flags; @@ -51,6 +70,7 @@ void swake_up_all(struct swait_queue_head *q) struct swait_queue *curr; LIST_HEAD(tmp); + WARN_ON(irqs_disabled()); raw_spin_lock_irq(&q->lock); list_splice_init(&q->task_list, &tmp); while (!list_empty(&tmp)) { |