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[Qemu-block] [PATCH] mirror: fix the inconsistent AioContext problem in


From: sochin.jiang
Subject: [Qemu-block] [PATCH] mirror: fix the inconsistent AioContext problem in the backing BDSs during mirroring.
Date: Mon, 26 Jun 2017 19:04:24 +0800

From: "sochin.jiang" <address@hidden>

 mirror_complete opens the backings, BDSs of the new open backings should have a
 same AioContext with the top when using iothreads, fix the code to guarantee 
this,
 also avoiding unexpected qemu exit(assert fails in bdrv_attach_child).

Signed-off-by: sochin.jiang <address@hidden>
---
 block.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/block.c b/block.c
index 6943962..b312fe6 100644
--- a/block.c
+++ b/block.c
@@ -2185,6 +2185,7 @@ int bdrv_open_backing_file(BlockDriverState *bs, QDict 
*parent_options,
         ret = -EINVAL;
         goto free_exit;
     }
+    bdrv_set_aio_context(backing_hd, bdrv_get_aio_context(bs));
 
     /* Hook up the backing file link; drop our reference, bs owns the
      * backing_hd reference now */
-- 
1.8.3.1




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