@@ -132,6 +132,7 @@ BlockBackend *blk_new_with_bs(Error **errp)
bs = bdrv_new_root();
blk->root = bdrv_root_attach_child(bs, "root", &child_root);
+ blk->root->opaque = blk;
bs->blk = blk;
return blk;
}
@@ -457,6 +458,7 @@ void blk_insert_bs(BlockBackend *blk, BlockDriverState *bs)
assert(!blk->root && !bs->blk);
bdrv_ref(bs);
blk->root = bdrv_root_attach_child(bs, "root", &child_root);
+ blk->root->opaque = blk;
bs->blk = blk;
notifier_list_notify(&blk->insert_bs_notifiers, blk);
@@ -364,6 +364,7 @@ struct BdrvChild {
BlockDriverState *bs;
char *name;
const BdrvChildRole *role;
+ void *opaque;
QLIST_ENTRY(BdrvChild) next;
QLIST_ENTRY(BdrvChild) next_parent;
};
BlockBackends use it to get a back pointer from BdrvChild to BlockBackend in any BdrvChildRole callbacks. Signed-off-by: Kevin Wolf <kwolf@redhat.com> --- block/block-backend.c | 2 ++ include/block/block_int.h | 1 + 2 files changed, 3 insertions(+)