virtio_blk: change to use __blk_end_request()

This patch converts virtio_blk to use __blk_end_request() directly
so that end_{queued|dequeued}_request() can be removed.
Related 'uptodate' argument is converted to 'error'.

Signed-off-by: Kiyoshi Ueda <k-ueda@ct.jp.nec.com>
Signed-off-by: Jun'ichi Nomura <j-nomura@ce.jp.nec.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>

diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c
index 879506a..6ec5fc0 100644 (file)
--- a/drivers/block/virtio_blk.c
+++ b/drivers/block/virtio_blk.c
@@ -47,20 +47,20 @@ static void blk_done(struct virtqueue *vq)
 
        spin_lock_irqsave(&vblk->lock, flags);
        while ((vbr = vblk->vq->vq_ops->get_buf(vblk->vq, &len)) != NULL) {
-               int uptodate;
+               int error;
                switch (vbr->status) {
                case VIRTIO_BLK_S_OK:
-                       uptodate = 1;
+                       error = 0;
                        break;
                case VIRTIO_BLK_S_UNSUPP:
-                       uptodate = -ENOTTY;
+                       error = -ENOTTY;
                        break;
                default:
-                       uptodate = 0;
+                       error = -EIO;
                        break;
                }
 
-               end_dequeued_request(vbr->req, uptodate);
+               __blk_end_request(vbr->req, error, blk_rq_bytes(vbr->req));
                list_del(&vbr->list);
                mempool_free(vbr, vblk->pool);
        }