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Re: [Qemu-devel] [PATCH v2 0/2] block: thread-safety patches for virtio-
From: |
Stefan Hajnoczi |
Subject: |
Re: [Qemu-devel] [PATCH v2 0/2] block: thread-safety patches for virtio-blk dataplane rerror/werror |
Date: |
Fri, 20 Jun 2014 11:58:59 +0800 |
User-agent: |
Mutt/1.5.23 (2014-03-12) |
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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