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authorPaolo Bonzini <pbonzini@redhat.com>2016-10-27 12:49:06 +0200
committerFam Zheng <famz@redhat.com>2016-10-28 21:50:18 +0800
commit65c1b5b622d09044af3f872240d65e7343f6f83e (patch)
tree6677708ea342fd5e2b6418a75777c699164bbda2 /include
parentc9d1a56174339b0afdef63b7d151b38f4bb6dae5 (diff)
downloadfocaccia-qemu-65c1b5b622d09044af3f872240d65e7343f6f83e.tar.gz
focaccia-qemu-65c1b5b622d09044af3f872240d65e7343f6f83e.zip
iothread: release AioContext around aio_poll
This is the first step towards having fine-grained critical sections in
dataplane threads, which will resolve lock ordering problems between
address_space_* functions (which need the BQL when doing MMIO, even
after we complete RCU-based dispatch) and the AioContext.

Because AioContext does not use contention callbacks anymore, the
unit test has to be changed.

Previously applied as a0710f7995f914e3044e5899bd8ff6c43c62f916 and
then reverted.

Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-Id: <1477565348-5458-19-git-send-email-pbonzini@redhat.com>
Signed-off-by: Fam Zheng <famz@redhat.com>
Diffstat (limited to 'include')
-rw-r--r--include/block/aio.h3
1 files changed, 0 insertions, 3 deletions
diff --git a/include/block/aio.h b/include/block/aio.h
index 040b3b181e..8e1885ba58 100644
--- a/include/block/aio.h
+++ b/include/block/aio.h
@@ -116,9 +116,6 @@ struct AioContext {
     bool notified;
     EventNotifier notifier;
 
-    /* Scheduling this BH forces the event loop it iterate */
-    QEMUBH *notify_dummy_bh;
-
     /* Thread pool for performing work and receiving completion callbacks */
     struct ThreadPool *thread_pool;