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

[Paolo Bonzini <pbonzini@redhat.com>]

----- Messaggio originale -----
> Da: "Stefan Hajnoczi" <stefanha@redhat.com>
> A: "Paolo Bonzini" <pbonzini@redhat.com>
> Cc: qemu-devel@nongnu.org, famz@redhat.com, kwolf@redhat.com
> Inviato: Venerdì, 20 giugno 2014 5:58:59
> Oggetto: Re: [PATCH v2 0/2] block: thread-safety patches for virtio-blk dataplane rerror/werror
> 
> 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

Hi Stefan, both patches actually will need rebasing on top of the
QAPI event series from Wenchao.  I can resend it next week.

Paolo