104 	struct kern_ipc_perm *ipcp = ipc_obtain_object_idr(&msg_ids(ns), id);  in msq_obtain_object()  local
106 	if (IS_ERR(ipcp))  in msq_obtain_object()
107 		return ERR_CAST(ipcp);  in msq_obtain_object()
109 	return container_of(ipcp, struct msg_queue, q_perm);  in msq_obtain_object()
115 	struct kern_ipc_perm *ipcp = ipc_obtain_object_check(&msg_ids(ns), id);  in msq_obtain_object_check()  local
117 	if (IS_ERR(ipcp))  in msq_obtain_object_check()
118 		return ERR_CAST(ipcp);  in msq_obtain_object_check()
120 	return container_of(ipcp, struct msg_queue, q_perm);  in msq_obtain_object_check()
273 static void freeque(struct ipc_namespace *ns, struct kern_ipc_perm *ipcp)  in freeque()  argument
278 	struct msg_queue *msq = container_of(ipcp, struct msg_queue, q_perm);  in freeque()
404 	struct kern_ipc_perm *ipcp;  in msgctl_down()  local
411 	ipcp = ipcctl_obtain_check(ns, &msg_ids(ns), msqid, cmd,  in msgctl_down()
413 	if (IS_ERR(ipcp)) {  in msgctl_down()
414 		err = PTR_ERR(ipcp);  in msgctl_down()
418 	msq = container_of(ipcp, struct msg_queue, q_perm);  in msgctl_down()
428 		freeque(ns, ipcp);  in msgctl_down()
441 		err = ipc_update_perm(perm, ipcp);  in msgctl_down()
1345 	struct kern_ipc_perm *ipcp = it;  in sysvipc_msg_proc_show()  local
1346 	struct msg_queue *msq = container_of(ipcp, struct msg_queue, q_perm);  in sysvipc_msg_proc_show()