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block: Make format drivers use child_of_bds

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Commonly, they need to pass the BDRV_CHILD_IMAGE set as the
BdrvChildRole; but there are exceptions for drivers with external data
files (qcow2 and vmdk).

Signed-off-by: Max Reitz <mreitz@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-Id: <20200513110544.176672-26-mreitz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This commit is contained in:
Max Reitz 2020-05-13 13:05:35 +02:00 • committed by Kevin Wolf
parent ff3541c4e2
commit 8b1869daad
12 changed files with 50 additions and 29 deletions
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4
block/vpc.c
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@ -228,8 +228,8 @@ static int vpc_open(BlockDriverState *bs, QDict *options, int flags,
int ret;
int64_t bs_size;
bs->file = bdrv_open_child(NULL, options, "file", bs, &child_file, 0,
false, errp);
bs->file = bdrv_open_child(NULL, options, "file", bs, &child_of_bds,
BDRV_CHILD_IMAGE, false, errp);
if (!bs->file) {
return -EINVAL;
}