FindVNode
error = FindVNode(REISERFS_ROOT_PARENT_OBJECTID,
return FindVNode(VNode::GetDirIDFor(id), VNode::GetObjectIDFor(id), node);
error = FindVNode(entry->GetDirID(), entry->GetObjectID(), foundNode);
status_t FindVNode(ino_t id, VNode *node);
status_t FindVNode(uint32 dirID, uint32 objectID, VNode *node);
error = volume->FindVNode(vnid, foundNode);