diff mbox

[v3,6/7] virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling

Message ID 1411458570-7299-7-git-send-email-famz@redhat.com
State New
Headers show

Commit Message

Fam Zheng Sept. 23, 2014, 7:49 a.m. UTC 
Signed-off-by: Fam Zheng <famz@redhat.com>
---
 hw/scsi/virtio-scsi.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox

Patch

diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 395178e..09a39cb 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -488,6 +488,8 @@  bool virtio_scsi_handle_cmd_req_prepare(VirtIOSCSI *s, VirtIOSCSIReq *req)
         virtio_scsi_complete_cmd_req(req);
         return false;
     }
+    scsi_req_ref(req->sreq);
+    bdrv_io_plug(d->conf.bs);
     return true;
 }
 
@@ -496,6 +498,8 @@  void virtio_scsi_handle_cmd_req_submit(VirtIOSCSI *s, VirtIOSCSIReq *req)
     if (scsi_req_enqueue(req->sreq)) {
         scsi_req_continue(req->sreq);
     }
+    bdrv_io_unplug(req->sreq->dev->conf.bs);
+    scsi_req_unref(req->sreq);
 }
 
 static void virtio_scsi_handle_cmd(VirtIODevice *vdev, VirtQueue *vq)