On 13/06/2016 11:58, Bob Liu wrote: > A guest might be migrated to other hosts with different num_queues, the > blk-core should aware of that else the reference of &vblk->vqs[qid] may be > wrong. > > Signed-off-by: Bob Liu <bob....@oracle.com> > --- > drivers/block/virtio_blk.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/block/virtio_blk.c b/drivers/block/virtio_blk.c > index 42758b5..c169238 100644 > --- a/drivers/block/virtio_blk.c > +++ b/drivers/block/virtio_blk.c > @@ -819,6 +819,9 @@ static int virtblk_restore(struct virtio_device *vdev) > if (ret) > return ret; > > + if (vblk->num_vqs != vblk->tag_set.nr_hw_queues) > + blk_mq_update_nr_hw_queues(&vblk->tag_set, vblk->num_vqs); > + > virtio_device_ready(vdev); > > blk_mq_start_stopped_hw_queues(vblk->disk->queue, true); >
This should never happen; it'd be a configuration problem. Paolo _______________________________________________ Virtualization mailing list Virtualization@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/virtualization
