On Tue, 29 Mar 2016 16:42:09 +0300
"Michael S. Tsirkin" <m...@redhat.com> wrote:

> This works around races that data plane introduces
> simply by exiting immediately if we detect
> that dataplane is active.
> 
> It's a small but ugly patch, it's only justification
> is that it's minimally intrusive, and that it clearly
> has no chance to break non data plane users.
> 
> The idea is to rework it all post 2.6.
> 
> Michael S. Tsirkin (2):
>   virtio: add aio handler
>   virtio-blk: use aio handler for data plane
> 
>  include/hw/virtio/virtio-blk.h  |  2 ++
>  include/hw/virtio/virtio.h      |  4 ++++
>  hw/block/dataplane/virtio-blk.c | 13 +++++++++++++
>  hw/block/virtio-blk.c           | 28 ++++++++++++++++++----------
>  hw/virtio/virtio.c              | 36 ++++++++++++++++++++++++++++++++----
>  5 files changed, 69 insertions(+), 14 deletions(-)
> 

FWIW, this seems to survive an hour or so of reboot loops for me, but
that's only a small setup.


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