rem: if(v->fsid == key->fsid && v->vnid == key->vnid)
add: if (v->fs_id == key->fs_id && v->id == key->vnode_id)
context: vnode_compare(void *_v, const void *_key){	struct vnode *v = _v;	const struct vnode_hash_key *key = _key;	if(v->fsid == key->fsid && v->vnid == key->vnid)		return 0;	else		return -1;}