400 static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,  in msgctl_down()  argument
410 	ipcp = ipcctl_obtain_check(ns, &msg_ids(ns), msqid, cmd,  in msgctl_down()
419 	err = security_msg_queue_msgctl(&msq->q_perm, cmd);  in msgctl_down()
423 	switch (cmd) {  in msgctl_down()
477 			 int cmd, struct msginfo *msginfo)  in msgctl_info()  argument
487 	err = security_msg_queue_msgctl(NULL, cmd);  in msgctl_info()
498 	if (cmd == MSG_INFO) {  in msgctl_info()
513 			 int cmd, struct msqid64_ds *p)  in msgctl_stat()  argument
521 	if (cmd == MSG_STAT || cmd == MSG_STAT_ANY) {  in msgctl_stat()
536 	if (cmd == MSG_STAT_ANY)  in msgctl_stat()
544 	err = security_msg_queue_msgctl(&msq->q_perm, cmd);  in msgctl_stat()
571 	if (cmd == IPC_STAT) {  in msgctl_stat()
591 static long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf, int version)  in ksys_msgctl()  argument
597 	if (msqid < 0 || cmd < 0)  in ksys_msgctl()
602 	switch (cmd) {  in ksys_msgctl()
606 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in ksys_msgctl()
616 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
625 		return msgctl_down(ns, msqid, cmd, &msqid64.msg_perm,  in ksys_msgctl()
628 		return msgctl_down(ns, msqid, cmd, NULL, 0);  in ksys_msgctl()
634 SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
636 	return ksys_msgctl(msqid, cmd, buf, IPC_64);  in SYSCALL_DEFINE3()
640 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)  in ksys_old_msgctl()  argument
642 	int version = ipc_parse_version(&cmd);  in ksys_old_msgctl()
644 	return ksys_msgctl(msqid, cmd, buf, version);  in ksys_old_msgctl()
647 SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
649 	return ksys_old_msgctl(msqid, cmd, buf);  in SYSCALL_DEFINE3()
726 static long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr, int version)  in compat_ksys_msgctl()  argument
734 	if (msqid < 0 || cmd < 0)  in compat_ksys_msgctl()
737 	switch (cmd & (~IPC_64)) {  in compat_ksys_msgctl()
741 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in compat_ksys_msgctl()
751 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
760 		return msgctl_down(ns, msqid, cmd, &msqid64.msg_perm, msqid64.msg_qbytes);  in compat_ksys_msgctl()
762 		return msgctl_down(ns, msqid, cmd, NULL, 0);  in compat_ksys_msgctl()
768 COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
770 	return compat_ksys_msgctl(msqid, cmd, uptr, IPC_64);  in COMPAT_SYSCALL_DEFINE3()
774 long compat_ksys_old_msgctl(int msqid, int cmd, void __user *uptr)  in compat_ksys_old_msgctl()  argument
776 	int version = compat_ipc_parse_version(&cmd);  in compat_ksys_old_msgctl()
778 	return compat_ksys_msgctl(msqid, cmd, uptr, version);  in compat_ksys_old_msgctl()
781 COMPAT_SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
783 	return compat_ksys_old_msgctl(msqid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()