diff options
Diffstat (limited to 'drivers/block')
| -rw-r--r-- | drivers/block/drbd/drbd_int.h | 11 | ||||
| -rw-r--r-- | drivers/block/drbd/drbd_worker.c | 8 |
2 files changed, 15 insertions, 4 deletions
diff --git a/drivers/block/drbd/drbd_int.h b/drivers/block/drbd/drbd_int.h index c88d6c6be70b..a71f8bb9dc80 100644 --- a/drivers/block/drbd/drbd_int.h +++ b/drivers/block/drbd/drbd_int.h @@ -1778,6 +1778,17 @@ drbd_queue_work(struct drbd_work_queue *q, struct drbd_work *w) } static inline void +drbd_queue_work_if_unqueued(struct drbd_work_queue *q, struct drbd_work *w) +{ + unsigned long flags; + spin_lock_irqsave(&q->q_lock, flags); + if (list_empty_careful(&w->list)) + list_add_tail(&w->list, &q->q); + spin_unlock_irqrestore(&q->q_lock, flags); + wake_up(&q->q_wait); +} + +static inline void drbd_device_post_work(struct drbd_device *device, int work_bit) { if (!test_and_set_bit(work_bit, &device->flags)) { diff --git a/drivers/block/drbd/drbd_worker.c b/drivers/block/drbd/drbd_worker.c index 9f0acb011f30..49b88731b349 100644 --- a/drivers/block/drbd/drbd_worker.c +++ b/drivers/block/drbd/drbd_worker.c @@ -452,9 +452,9 @@ void resync_timer_fn(unsigned long data) { struct drbd_device *device = (struct drbd_device *) data; - if (list_empty(&device->resync_work.list)) - drbd_queue_work(&first_peer_device(device)->connection->sender_work, - &device->resync_work); + drbd_queue_work_if_unqueued( + &first_peer_device(device)->connection->sender_work, + &device->resync_work); } static void fifo_set(struct fifo_buffer *fb, int value) @@ -1968,7 +1968,7 @@ static void do_unqueued_work(struct drbd_connection *connection) static bool dequeue_work_batch(struct drbd_work_queue *queue, struct list_head *work_list) { spin_lock_irq(&queue->q_lock); - list_splice_init(&queue->q, work_list); + list_splice_tail_init(&queue->q, work_list); spin_unlock_irq(&queue->q_lock); return !list_empty(work_list); } |