commit 1919631e6b5562e474690853eca3c35610201e16
author Paolo Bonzini <pbonzini@redhat.com> Mon Feb 13 14:52:31 2017 +0100
committer Stefan Hajnoczi <stefanha@redhat.com> Tue Feb 21 11:39:39 2017 +0000
tree f2a7e1da7d7d0ad988faa4801309a45a68c78b60
parent 9d456654482a8bd1ff72f0bdbe1f393149a5680a

block: explicitly acquire aiocontext in bottom halves that need it

Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Reviewed-by: Daniel P. Berrange <berrange@redhat.com>
Message-id: 20170213135235.12274-15-pbonzini@redhat.com
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>

util/async.c

diff --git a/util/async.c b/util/async.c
index aec8016..c54da71 100644
--- a/util/async.c
+++ b/util/async.c
@@ -114,9 +114,7 @@
                 ret = 1;
             }
             bh->idle = 0;
-            aio_context_acquire(ctx);
             aio_bh_call(bh);
-            aio_context_release(ctx);
         }
         if (bh->deleted) {
             deleted = true;
@@ -389,7 +387,9 @@
         Coroutine *co = QSLIST_FIRST(&straight);
         QSLIST_REMOVE_HEAD(&straight, co_scheduled_next);
         trace_aio_co_schedule_bh_cb(ctx, co);
+        aio_context_acquire(ctx);
         qemu_coroutine_enter(co);
+        aio_context_release(ctx);
     }
 }