block: Make backing files child_of_bds children
Make all parents of backing files pass the appropriate BdrvChildRole.
By doing so, we can switch their BdrvChildClass over to the generic
child_of_bds, which will do the right thing when given a correct
BdrvChildRole.
Signed-off-by: Max Reitz <mreitz@redhat.com>
Message-Id: <20200513110544.176672-24-mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
diff --git a/block/backup-top.c b/block/backup-top.c
index e2b4d2a..f059617 100644
--- a/block/backup-top.c
+++ b/block/backup-top.c
@@ -143,7 +143,7 @@
return;
}
- if (child_class == &child_file) {
+ if (!(role & BDRV_CHILD_FILTERED)) {
/*
* Target child
*
