[Qemu-devel] [PULL 1/9] Revert "virtio: sync the dataplane vring state to the virtqueue before virtio_save"

[Stefan Hajnoczi <stefanha@redhat.com>]

This reverts commit 10a06fd65f667a972848ebbbcac11bdba931b544.

Dataplane has used the same virtqueue code as non-dataplane since
commits e24a47c5b73e04f94030e2daa356c7582aebfca2 ("virtio-scsi: do not
use vring in dataplane") and 03de2f527499ae0c6d16a379665d072345254f2c
("virtio-blk: do not use vring in dataplane").  It is no longer
necessary to stop dataplane in order to sync state since there is no
duplicated virtqueue state.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
Reviewed-by: Pavel Butsykin <pbutsykin@virtuozzo.com>
Message-id: 1466503331-9831-1-git-send-email-stefanha@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 hw/block/virtio-blk.c | 5 -----
 hw/scsi/virtio-scsi.c | 5 -----
 2 files changed, 10 deletions(-)

diff --git a/hw/block/virtio-blk.c b/hw/block/virtio-blk.c
index 284e646..beb4e12 100644
--- a/hw/block/virtio-blk.c
+++ b/hw/block/virtio-blk.c
@@ -795,11 +795,6 @@ static void virtio_blk_set_status(VirtIODevice *vdev, uint8_t status)
 static void virtio_blk_save(QEMUFile *f, void *opaque)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
-    VirtIOBlock *s = VIRTIO_BLK(vdev);
-
-    if (s->dataplane) {
-        virtio_blk_data_plane_stop(s->dataplane);
-    }
 
     virtio_save(vdev, f);
 }
diff --git a/hw/scsi/virtio-scsi.c b/hw/scsi/virtio-scsi.c
index 71d09d3..e8179d6 100644
--- a/hw/scsi/virtio-scsi.c
+++ b/hw/scsi/virtio-scsi.c
@@ -666,11 +666,6 @@ static void virtio_scsi_reset(VirtIODevice *vdev)
 static void virtio_scsi_save(QEMUFile *f, void *opaque)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
-    VirtIOSCSI *s = VIRTIO_SCSI(vdev);
-
-    if (s->dataplane_started) {
-        virtio_scsi_dataplane_stop(s);
-    }
     virtio_save(vdev, f);
 }
 
-- 
2.7.4