diff options
Diffstat (limited to 'kernel/wait-simple.c')
| -rw-r--r-- | kernel/wait-simple.c | 10 |
1 files changed, 1 insertions, 9 deletions
diff --git a/kernel/wait-simple.c b/kernel/wait-simple.c index 2c85626..7dfa86d 100644 --- a/kernel/wait-simple.c +++ b/kernel/wait-simple.c @@ -26,14 +26,6 @@ static inline void __swait_dequeue(struct swaiter *w) list_del_init(&w->node); } -/* Check whether a head has waiters enqueued */ -static inline bool swait_head_has_waiters(struct swait_head *h) -{ - /* Make sure the condition is visible before checking list_empty() */ - smp_mb(); - return !list_empty(&h->list); -} - void __init_swait_head(struct swait_head *head, struct lock_class_key *key) { raw_spin_lock_init(&head->lock); @@ -112,7 +104,7 @@ __swait_wake(struct swait_head *head, unsigned int state, unsigned int num) unsigned long flags; int woken; - if (!swait_head_has_waiters(head)) + if (!swaitqueue_active(head)) return 0; raw_spin_lock_irqsave(&head->lock, flags); |