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From: Paolo Bonzini <pbonzini@redhat.com>
To: qemu-devel@nongnu.org
Cc: Ying Fang <fangying1@huawei.com>, stefanha@redhat.com
Subject: [RFC PATCH 0/4] async: fix hangs on weakly-ordered architectures
Date: Mon,  6 Apr 2020 15:13:16 -0400	[thread overview]
Message-ID: <20200406191320.13371-1-pbonzini@redhat.com> (raw)

Patch 4 fixes qemu-img and qemu-io hangs on weakly-ordered architectures.
Patch 1-3 are related docs fixes and improvements.

This is RFC because it relies on the iothread being locked during aio_poll
on the main AioContext.  If I add assertions for this however I see a
failure for test 267, so I am posting it as a preview before I debug that.
The doc patches can also go in independently of course.

Paolo

Paolo Bonzini (4):
  atomics: convert to reStructuredText
  atomics: update documentation for C11
  rcu: do not mention atomic_mb_read/set in documentation
  async: use explicit memory barriers

 docs/devel/atomics.rst | 385 +++++++++++++++++++++++++++++++++++++++
 docs/devel/atomics.txt | 403 -----------------------------------------
 docs/devel/index.rst   |   1 +
 docs/devel/rcu.txt     |   4 +-
 util/aio-posix.c       |   9 +-
 util/aio-win32.c       |   8 +-
 util/async.c           |  12 +-
 7 files changed, 413 insertions(+), 409 deletions(-)
 create mode 100644 docs/devel/atomics.rst
 delete mode 100644 docs/devel/atomics.txt

-- 
2.18.2



             reply	other threads:[~2020-04-06 19:14 UTC|newest]

Thread overview: 18+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-06 19:13 Paolo Bonzini [this message]
2020-04-06 19:13 ` [PATCH 1/4] atomics: convert to reStructuredText Paolo Bonzini
2020-04-06 19:58   ` Eric Blake
2020-04-07 10:29     ` Paolo Bonzini
2020-04-06 19:13 ` [PATCH 2/4] atomics: update documentation for C11 Paolo Bonzini
2020-04-06 20:03   ` Eric Blake
2020-04-07  9:06   ` Stefan Hajnoczi
2020-04-07  9:13     ` Paolo Bonzini
2020-04-06 19:13 ` [PATCH 3/4] rcu: do not mention atomic_mb_read/set in documentation Paolo Bonzini
2020-04-06 19:13 ` [PATCH 4/4] async: use explicit memory barriers and relaxed accesses Paolo Bonzini
2020-04-07  9:09   ` Stefan Hajnoczi
2020-04-07  9:18     ` Paolo Bonzini
2020-04-07  9:10 ` [RFC PATCH 0/4] async: fix hangs on weakly-ordered architectures Stefan Hajnoczi
2020-04-07 14:07 Paolo Bonzini
2020-04-08  9:12 ` Ying Fang
2020-04-08 15:05   ` Paolo Bonzini
2020-04-09  6:54     ` Ying Fang
2020-04-09 15:17 ` Stefan Hajnoczi

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