From 1919631e6b5562e474690853eca3c35610201e16 Mon Sep 17 00:00:00 2001
From: Paolo Bonzini <pbonzini@redhat.com>
Date: Mon, 13 Feb 2017 14:52:31 +0100
Subject: 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>
---
 dma-helpers.c | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'dma-helpers.c')

diff --git a/dma-helpers.c b/dma-helpers.c
index 97157cc2ec..2d7e02d35e 100644
--- a/dma-helpers.c
+++ b/dma-helpers.c
@@ -166,8 +166,10 @@ static void dma_blk_cb(void *opaque, int ret)
                                 QEMU_ALIGN_DOWN(dbs->iov.size, dbs->align));
     }
 
+    aio_context_acquire(dbs->ctx);
     dbs->acb = dbs->io_func(dbs->offset, &dbs->iov,
                             dma_blk_cb, dbs, dbs->io_func_opaque);
+    aio_context_release(dbs->ctx);
     assert(dbs->acb);
 }
 
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