Both users (quorum and blkverify) use child_format for not-really-filtered children, so the appropriate BdrvChildRole in both cases is DATA. (Note that this will cause bdrv_inherited_options() to force-allow format probing.)
Signed-off-by: Max Reitz <mre...@redhat.com> --- block/blkverify.c | 4 ++-- block/quorum.c | 6 ++++-- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/block/blkverify.c b/block/blkverify.c index ba4f6d7b7c..1684b7aa2e 100644 --- a/block/blkverify.c +++ b/block/blkverify.c @@ -134,8 +134,8 @@ static int blkverify_open(BlockDriverState *bs, QDict *options, int flags, /* Open the test file */ s->test_file = bdrv_open_child(qemu_opt_get(opts, "x-image"), options, - "test", bs, &child_format, 0, false, - &local_err); + "test", bs, &child_of_bds, BDRV_CHILD_DATA, + false, &local_err); if (local_err) { ret = -EINVAL; error_propagate(errp, local_err); diff --git a/block/quorum.c b/block/quorum.c index d37b77a522..616ac3a927 100644 --- a/block/quorum.c +++ b/block/quorum.c @@ -977,7 +977,8 @@ static int quorum_open(BlockDriverState *bs, QDict *options, int flags, assert(ret < 32); s->children[i] = bdrv_open_child(NULL, options, indexstr, bs, - &child_format, 0, false, &local_err); + &child_of_bds, BDRV_CHILD_DATA, false, + &local_err); if (local_err) { ret = -EINVAL; goto close_exit; @@ -1053,7 +1054,8 @@ static void quorum_add_child(BlockDriverState *bs, BlockDriverState *child_bs, /* We can safely add the child now */ bdrv_ref(child_bs); - child = bdrv_attach_child(bs, child_bs, indexstr, &child_format, 0, errp); + child = bdrv_attach_child(bs, child_bs, indexstr, &child_of_bds, + BDRV_CHILD_DATA, errp); if (child == NULL) { s->next_child_index--; goto out; -- 2.24.1