379 static int msgctl_down(struct ipc_namespace *ns, int msqid, int cmd,  in msgctl_down()  argument
389 	ipcp = ipcctl_obtain_check(ns, &msg_ids(ns), msqid, cmd,  in msgctl_down()
455 static int msgctl_info(struct ipc_namespace *ns, int msqid,  in msgctl_info()  argument
491 static int msgctl_stat(struct ipc_namespace *ns, int msqid,  in msgctl_stat()  argument
501 		msq = msq_obtain_object(ns, msqid);  in msgctl_stat()
507 		msq = msq_obtain_object_check(ns, msqid);  in msgctl_stat()
570 static long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf, int version)  in ksys_msgctl()  argument
576 	if (msqid < 0 || cmd < 0)  in ksys_msgctl()
585 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in ksys_msgctl()
595 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
606 		return msgctl_down(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
612 SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
614 	return ksys_msgctl(msqid, cmd, buf, IPC_64);  in SYSCALL_DEFINE3()
618 long ksys_old_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)  in ksys_old_msgctl()  argument
622 	return ksys_msgctl(msqid, cmd, buf, version);  in ksys_old_msgctl()
625 SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
627 	return ksys_old_msgctl(msqid, cmd, buf);  in SYSCALL_DEFINE3()
704 static long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr, int version)  in compat_ksys_msgctl()  argument
712 	if (msqid < 0 || cmd < 0)  in compat_ksys_msgctl()
719 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in compat_ksys_msgctl()
729 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
740 		return msgctl_down(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
746 COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
748 	return compat_ksys_msgctl(msqid, cmd, uptr, IPC_64);  in COMPAT_SYSCALL_DEFINE3()
752 long compat_ksys_old_msgctl(int msqid, int cmd, void __user *uptr)  in compat_ksys_old_msgctl()  argument
756 	return compat_ksys_msgctl(msqid, cmd, uptr, version);  in compat_ksys_old_msgctl()
759 COMPAT_SYSCALL_DEFINE3(old_msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
761 	return compat_ksys_old_msgctl(msqid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()
816 static long do_msgsnd(int msqid, long mtype, void __user *mtext,  in do_msgsnd()  argument
827 	if (msgsz > ns->msg_ctlmax || (long) msgsz < 0 || msqid < 0)  in do_msgsnd()
840 	msq = msq_obtain_object_check(ns, msqid);  in do_msgsnd()
929 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgsnd()  argument
936 	return do_msgsnd(msqid, mtype, msgp->mtext, msgsz, msgflg);  in ksys_msgsnd()
939 SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE4()  argument
942 	return ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in SYSCALL_DEFINE4()
952 long compat_ksys_msgsnd(int msqid, compat_uptr_t msgp,  in compat_ksys_msgsnd()  argument
960 	return do_msgsnd(msqid, mtype, up->mtext, (ssize_t)msgsz, msgflg);  in compat_ksys_msgsnd()
963 COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE4()  argument
966 	return compat_ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in COMPAT_SYSCALL_DEFINE4()
1066 static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,  in do_msgrcv()  argument
1077 	if (msqid < 0 || (long) bufsz < 0)  in do_msgrcv()
1090 	msq = msq_obtain_object_check(ns, msqid);  in do_msgrcv()
1224 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgrcv()  argument
1227 	return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill);  in ksys_msgrcv()
1230 SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE5()  argument
1233 	return ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in SYSCALL_DEFINE5()
1251 long compat_ksys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz,  in compat_ksys_msgrcv()  argument
1254 	return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,  in compat_ksys_msgrcv()
1258 COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE5()  argument
1262 	return compat_ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in COMPAT_SYSCALL_DEFINE5()