[media] vb2: rename queued_count to owned_by_drv_count

'queued_count' is a bit vague since it is not clear to which queue it
refers to: the vb2 internal list of buffers or the driver-owned list
of buffers.

Rename to make it explicit.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Acked-by: Pawel Osciak <pawel@osciak.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>

drivers/media/v4l2-core/videobuf2-core.c

@@ -1084,7 +1084,7 @@ void vb2_buffer_done(struct vb2_buffer *vb, enum vb2_buffer_state state)
 	spin_lock_irqsave(&q->done_lock, flags);
 	vb->state = state;
 	list_add_tail(&vb->done_entry, &q->done_list);
-	atomic_dec(&q->queued_count);
+	atomic_dec(&q->owned_by_drv_count);
 	spin_unlock_irqrestore(&q->done_lock, flags);
 
 	/* Inform any processes that may be waiting for buffers */
@@ -1437,7 +1437,7 @@ static void __enqueue_in_driver(struct vb2_buffer *vb)
 	unsigned int plane;
 
 	vb->state = VB2_BUF_STATE_ACTIVE;
-	atomic_inc(&q->queued_count);
+	atomic_inc(&q->owned_by_drv_count);
 
 	/* sync buffers */
 	for (plane = 0; plane < vb->num_planes; ++plane)
@@ -1593,7 +1593,7 @@ static int vb2_start_streaming(struct vb2_queue *q)
 	int ret;
 
 	/* Tell the driver to start streaming */
-	ret = call_qop(q, start_streaming, q, atomic_read(&q->queued_count));
+	ret = call_qop(q, start_streaming, q, atomic_read(&q->owned_by_drv_count));
 	if (ret)
 		fail_qop(q, start_streaming);
 
@@ -1826,7 +1826,7 @@ int vb2_wait_for_all_buffers(struct vb2_queue *q)
 	}
 
 	if (!q->retry_start_streaming)
-		wait_event(q->done_wq, !atomic_read(&q->queued_count));
+		wait_event(q->done_wq, !atomic_read(&q->owned_by_drv_count));
 	return 0;
 }
 EXPORT_SYMBOL_GPL(vb2_wait_for_all_buffers);
@@ -1958,7 +1958,7 @@ static void __vb2_queue_cancel(struct vb2_queue *q)
 	 * has not already dequeued before initiating cancel.
 	 */
 	INIT_LIST_HEAD(&q->done_list);
-	atomic_set(&q->queued_count, 0);
+	atomic_set(&q->owned_by_drv_count, 0);
 	wake_up_all(&q->done_wq);
 
 	/*

include/media/videobuf2-core.h

@@ -361,7 +361,7 @@ struct v4l2_fh;
  * @bufs:	videobuf buffer structures
  * @num_buffers: number of allocated/used buffers
  * @queued_list: list of buffers currently queued from userspace
- * @queued_count: number of buffers owned by the driver
+ * @owned_by_drv_count: number of buffers owned by the driver
  * @done_list:	list of buffers ready to be dequeued to userspace
  * @done_lock:	lock to protect done_list list
  * @done_wq:	waitqueue for processes waiting for buffers ready to be dequeued
@@ -393,7 +393,7 @@ struct vb2_queue {
 
 	struct list_head		queued_list;
 
-	atomic_t			queued_count;
+	atomic_t			owned_by_drv_count;
 	struct list_head		done_list;
 	spinlock_t			done_lock;
 	wait_queue_head_t		done_wq;