Re: [Qemu-devel] [PATCH v2 0/2] block: thread-safety patches for virtio-blk dataplane rerror/werror

[Stefan Hajnoczi <stefanha@redhat.com>]

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On Thu, Jun 05, 2014 at 02:53:57PM +0200, Paolo Bonzini wrote:
> With virtio-blk dataplane, I/O errors might occur while QEMU is
> not in the main I/O thread.  This makes the block layer's
> bdrv_error_action() function thread-safe (modulo changes in
> the monitor to make QMP events thread-safe too, already posted).
> 
> Thanks to Kevin for discussing v1, the ideas are based on his
> input too.
> 
> v1->v2: redone, v1 should really have been an RFC
> 
> Paolo Bonzini (2):
>   vl: allow other threads to do qemu_system_vmstop_request
>   block: asynchronously stop the VM on I/O errors
> 
>  block.c                 | 20 ++++++++++--
>  cpus.c                  |  1 +
>  docs/qmp/qmp-events.txt |  2 +-
>  include/sysemu/sysemu.h |  1 +
>  stubs/vm-stop.c         |  7 +++-
>  target-lm32/op_helper.c |  2 +-
>  vl.c                    | 85 +++++++++++++++++++++++++++++++------------------
>  7 files changed, 82 insertions(+), 36 deletions(-)

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan

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