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Re: [Qemu-block] [PATCH v3 0/4] vl: introduce vm_shutdown()


From: Stefan Hajnoczi
Subject: Re: [Qemu-block] [PATCH v3 0/4] vl: introduce vm_shutdown()
Date: Thu, 8 Mar 2018 17:47:10 +0000
User-agent: Mutt/1.9.2 (2017-12-15)

On Wed, Mar 07, 2018 at 02:42:01PM +0000, Stefan Hajnoczi wrote:
> v3:
>  * Rebase on qemu.git/master after AIO_WAIT_WHILE() was merged [Fam]
> v2:
>  * Tackle the .ioeventfd_stop() vs vq handler race by removing the ioeventfd
>    from a BH in the IOThread [Fam]
> 
> There are several race conditions in virtio-blk/virtio-scsi dataplane code.
> This patch series addresses them, see the commit description for details on 
> the
> individual cases.
> 
> Stefan Hajnoczi (4):
>   block: add aio_wait_bh_oneshot()
>   virtio-blk: fix race between .ioeventfd_stop() and vq handler
>   virtio-scsi: fix race between .ioeventfd_stop() and vq handler
>   vl: introduce vm_shutdown()
> 
>  include/block/aio-wait.h        | 13 +++++++++++++
>  include/sysemu/iothread.h       |  1 -
>  include/sysemu/sysemu.h         |  1 +
>  cpus.c                          | 16 +++++++++++++---
>  hw/block/dataplane/virtio-blk.c | 24 +++++++++++++++++-------
>  hw/scsi/virtio-scsi-dataplane.c |  9 +++++----
>  iothread.c                      | 31 -------------------------------
>  util/aio-wait.c                 | 31 +++++++++++++++++++++++++++++++
>  vl.c                            | 13 +++----------
>  9 files changed, 83 insertions(+), 56 deletions(-)
> 
> -- 
> 2.14.3
> 
> 

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

Stefan

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