diff mbox

[2/2] virtio-blk: allow drive_del with dataplane

Message ID 1408374433-5360-3-git-send-email-stefanha@redhat.com
State New
Headers show

Commit Message

Stefan Hajnoczi Aug. 18, 2014, 3:07 p.m. UTC 
Now that drive_del acquires the AioContext we can safely allow deleting
the drive.  As with non-dataplane mode, all I/Os submitted by the guest
after drive_del will return EIO.

This patch makes hot unplug work with virtio-blk dataplane.  Previously
drive_del reported an error because the device was busy.

Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
---
 hw/block/dataplane/virtio-blk.c | 1 +
 1 file changed, 1 insertion(+)
diff mbox

Patch

diff --git a/hw/block/dataplane/virtio-blk.c b/hw/block/dataplane/virtio-blk.c
index d6ba65c..907d5c7 100644
--- a/hw/block/dataplane/virtio-blk.c
+++ b/hw/block/dataplane/virtio-blk.c
@@ -192,6 +192,7 @@  void virtio_blk_data_plane_create(VirtIODevice *vdev, VirtIOBlkConf *blk,
 
     error_setg(&s->blocker, "block device is in use by data plane");
     bdrv_op_block_all(blk->conf.bs, s->blocker);
+    bdrv_op_unblock(blk->conf.bs, BLOCK_OP_TYPE_DRIVE_DEL, s->blocker);
 
     *dataplane = s;
 }