linux-master/lib/sbitmap.c

423 	atomic_set(&sbq->wake_index, 0);
548 	int i, wake_index, woken;
553 	wake_index = atomic_read(&sbq->wake_index);
555 		struct sbq_wait_state *ws = &sbq->ws[wake_index];
563 		wake_index = sbq_index_inc(wake_index);
573 	if (wake_index != atomic_read(&sbq->wake_index))
574 		atomic_set(&sbq->wake_index, wake_index);
668 	int i, wake_index;
675 	wake_index = atomic_read(&sbq->wake_index);
677 		struct sbq_wait_state *ws = &sbq->ws[wake_index];
682 		wake_index = sbq_index_inc(wake_index);
705 	seq_printf(m, "wake_index=%d\n", atomic_read(&sbq->wake_index));