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Date: Thu, 14 Dec 2017 11:12:00 +0000
From: Stefan Hajnoczi <stefanha@redhat.com>
Message-ID: <20171214111200.GD14433@stefanha-x1.localdomain>
References: <20171207201320.19284-1-stefanha@redhat.com>
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In-Reply-To: <20171207201320.19284-1-stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH v2 0/6] block: avoid recursive AioContext
 acquire in bdrv_inactivate_all()
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To: qemu-devel@nongnu.org
Cc: qemu-block@nongnu.org, Eric Blake <eblake@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>


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On Thu, Dec 07, 2017 at 08:13:14PM +0000, Stefan Hajnoczi wrote:
> v2:
>  * Added docs/devel/multiple-iothreads.txt doc update [Kevin]
>  * Added qemu-iotests 203 test case [Kevin]
>  * Added iothread_stop() race fix to make 203 reliable
>=20
> Patch 1 is Paolo's recursive locking removal in bdrv_inactivate_all().  T=
his
> solve migration hangs and is the main point of the patch series.
>=20
> Patches 2-6 add a qemu-iotests test case and update the multiple-iothread=
s.txt
> documentation to discourage recursive AioContext locking.
>=20
> Based-on: <20171206144550.22295-1-stefanha@redhat.com>
>=20
> Paolo Bonzini (1):
>   block: avoid recursive AioContext acquire in bdrv_inactivate_all()
>=20
> Stefan Hajnoczi (5):
>   docs: mark nested AioContext locking as a legacy API
>   blockdev: add x-blockdev-set-iothread force boolean
>   iotests: add VM.add_object()
>   iothread: fix iothread_stop() race condition
>   qemu-iotests: add 203 savevm with IOThreads test
>=20
>  docs/devel/multiple-iothreads.txt |  7 +++--
>  qapi/block-core.json              |  6 +++-
>  include/sysemu/iothread.h         |  3 +-
>  block.c                           | 14 ++++++++--
>  blockdev.c                        | 11 ++++----
>  iothread.c                        | 20 +++++++++----
>  tests/qemu-iotests/203            | 59 +++++++++++++++++++++++++++++++++=
++++++
>  tests/qemu-iotests/203.out        |  6 ++++
>  tests/qemu-iotests/group          |  1 +
>  tests/qemu-iotests/iotests.py     |  5 ++++
>  10 files changed, 114 insertions(+), 18 deletions(-)
>  create mode 100755 tests/qemu-iotests/203
>  create mode 100644 tests/qemu-iotests/203.out
>=20
> --=20
> 2.14.3
>=20

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

Stefan

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