From 91ef38257ad225f7fa17a6583fb792c0be9e8acf Mon Sep 17 00:00:00 2001
From: Kevin Wolf
Date: Tue, 20 Dec 2016 16:23:46 +0100
Subject: vvfat: Implement .bdrv_child_perm()

vvfat is the last remaining driver that can have children, but doesn't
implement .bdrv_child_perm() yet. The default handlers aren't suitable
here, so let's implement a very simple driver-specific one that protects
the internal child from being used by other users as good as our
permissions permit.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Max Reitz <mreitz@redhat.com>
Acked-by: Fam Zheng <famz@redhat.com>
---
 include/block/block_int.h | 1 +
 1 file changed, 1 insertion(+)

(limited to 'include')

diff --git a/include/block/block_int.h b/include/block/block_int.h
index eb0598e580..63d54460e5 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -466,6 +466,7 @@ struct BdrvChildRole {
 
 extern const BdrvChildRole child_file;
 extern const BdrvChildRole child_format;
+extern const BdrvChildRole child_backing;
 
 struct BdrvChild {
     BlockDriverState *bs;
-- 
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