From: Stefan Hajnoczi <stefanha@redhat.com>
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>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: [Qemu-devel] [PATCH v2 0/6] block: avoid recursive AioContext acquire in bdrv_inactivate_all()
Date: Thu, 7 Dec 2017 20:13:14 +0000 [thread overview]
Message-ID: <20171207201320.19284-1-stefanha@redhat.com> (raw)
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
Patch 1 is Paolo's recursive locking removal in bdrv_inactivate_all(). This
solve migration hangs and is the main point of the patch series.
Patches 2-6 add a qemu-iotests test case and update the multiple-iothreads.txt
documentation to discourage recursive AioContext locking.
Based-on: <20171206144550.22295-1-stefanha@redhat.com>
Paolo Bonzini (1):
block: avoid recursive AioContext acquire in bdrv_inactivate_all()
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
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
--
2.14.3
next reply other threads:[~2017-12-07 20:13 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-12-07 20:13 Stefan Hajnoczi [this message]
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 1/6] block: avoid recursive AioContext acquire in bdrv_inactivate_all() Stefan Hajnoczi
2017-12-07 22:04 ` Eric Blake
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 2/6] docs: mark nested AioContext locking as a legacy API Stefan Hajnoczi
2017-12-07 22:34 ` Eric Blake
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 3/6] blockdev: add x-blockdev-set-iothread force boolean Stefan Hajnoczi
2017-12-07 22:38 ` Eric Blake
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 4/6] iotests: add VM.add_object() Stefan Hajnoczi
2017-12-07 22:39 ` Eric Blake
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 5/6] iothread: fix iothread_stop() race condition Stefan Hajnoczi
2017-12-07 22:42 ` Eric Blake
2017-12-07 20:13 ` [Qemu-devel] [PATCH v2 6/6] qemu-iotests: add 203 savevm with IOThreads test Stefan Hajnoczi
2017-12-07 22:46 ` Eric Blake
2017-12-13 21:23 ` [Qemu-devel] [PATCH v2 0/6] block: avoid recursive AioContext acquire in bdrv_inactivate_all() Paolo Bonzini
2017-12-14 11:12 ` Stefan Hajnoczi
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