From 5170f40b102bcabed54e8fa8ec86957e35c41d41 Mon Sep 17 00:00:00 2001 From: Fam Zheng Date: Tue, 23 Sep 2014 15:49:29 +0800 Subject: [PATCH] virtio-scsi: Call bdrv_io_plug/bdrv_io_unplug in cmd request handling Signed-off-by: Fam Zheng Signed-off-by: Paolo Bonzini --- hw/scsi/virtio-scsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c index 395178e949..09a39cb991 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)