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From: Wen Congyang <wency@cn.fujitsu.com>
Date: Fri, 3 Apr 2015 18:01:14 +0800
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Subject: [Qemu-devel] [PATCH COLO v3 08/14] Allow creating backup jobs when
	opening BDS
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To: qemu devel <qemu-devel@nongnu.org>, Fam Zheng <famz@redhat.com>, Max Reitz <mreitz@redhat.com>, Paolo Bonzini <pbonzini@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, qemu block <qemu-block@nongnu.org>, Lai Jiangshan <laijs@cn.fujitsu.com>, Jiang Yunhong <yunhong.jiang@intel.com>, Dong Eddie <eddie.dong@intel.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Gonglei <arei.gonglei@huawei.com>, Stefan Hajnoczi <stefanha@redhat.com>, Yang Hongyang <yanghy@cn.fujitsu.com>, zhanghailiang <zhang.zhanghailiang@huawei.com>

When opening BDS, we need to create backup jobs for
image-fleecing. This feature is not used by qemu-img,
qemu-io or qemu-nbd. So just adding the referenced
functions to stubs.

Signed-off-by: Wen Congyang <wency@cn.fujitsu.com>
Signed-off-by: zhanghailiang <zhang.zhanghailiang@huawei.com>
Signed-off-by: Gonglei <arei.gonglei@huawei.com>
---
 stubs/Makefile.objs |  1 +
 stubs/backup.c      | 11 +++++++++++
 2 files changed, 12 insertions(+)
 create mode 100644 stubs/backup.c

diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 8beff4c..5ae2214 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -39,3 +39,4 @@ stub-obj-$(CONFIG_WIN32) += fd-register.o
 stub-obj-y += cpus.o
 stub-obj-y += kvm.o
 stub-obj-y += qmp_pc_dimm_device_list.o
+stub-obj-y += backup.o
diff --git a/stubs/backup.c b/stubs/backup.c
new file mode 100644
index 0000000..3ebcc71
--- /dev/null
+++ b/stubs/backup.c
@@ -0,0 +1,11 @@
+#include "block/block_int.h"
+
+void backup_start(BlockDriverState *bs, BlockDriverState *target,
+                  int64_t speed, MirrorSyncMode sync_mode,
+                  BlockdevOnError on_source_error,
+                  BlockdevOnError on_target_error,
+                  BlockCompletionFunc *cb, void *opaque,
+                  Error **errp)
+{
+    error_setg(errp, "this feature or command is not currently supported");
+}
-- 
2.1.0