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 long ksys_msgctl(int msqid, int cmd, struct msqid_ds __user *buf)  in ksys_msgctl()  argument
577 	if (msqid < 0 || cmd < 0)  in ksys_msgctl()
587 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in ksys_msgctl()
597 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
608 		return msgctl_down(ns, msqid, cmd, &msqid64);  in ksys_msgctl()
614 SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, struct msqid_ds __user *, buf)  in SYSCALL_DEFINE3()  argument
616 	return ksys_msgctl(msqid, cmd, buf);  in SYSCALL_DEFINE3()
692 long compat_ksys_msgctl(int msqid, int cmd, void __user *uptr)  in compat_ksys_msgctl()  argument
701 	if (msqid < 0 || cmd < 0)  in compat_ksys_msgctl()
708 		err = msgctl_info(ns, msqid, cmd, &msginfo);  in compat_ksys_msgctl()
718 		err = msgctl_stat(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
729 		return msgctl_down(ns, msqid, cmd, &msqid64);  in compat_ksys_msgctl()
735 COMPAT_SYSCALL_DEFINE3(msgctl, int, msqid, int, cmd, void __user *, uptr)  in COMPAT_SYSCALL_DEFINE3()  argument
737 	return compat_ksys_msgctl(msqid, cmd, uptr);  in COMPAT_SYSCALL_DEFINE3()
791 static long do_msgsnd(int msqid, long mtype, void __user *mtext,  in do_msgsnd()  argument
802 	if (msgsz > ns->msg_ctlmax || (long) msgsz < 0 || msqid < 0)  in do_msgsnd()
815 	msq = msq_obtain_object_check(ns, msqid);  in do_msgsnd()
904 long ksys_msgsnd(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgsnd()  argument
911 	return do_msgsnd(msqid, mtype, msgp->mtext, msgsz, msgflg);  in ksys_msgsnd()
914 SYSCALL_DEFINE4(msgsnd, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE4()  argument
917 	return ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in SYSCALL_DEFINE4()
927 long compat_ksys_msgsnd(int msqid, compat_uptr_t msgp,  in compat_ksys_msgsnd()  argument
935 	return do_msgsnd(msqid, mtype, up->mtext, (ssize_t)msgsz, msgflg);  in compat_ksys_msgsnd()
938 COMPAT_SYSCALL_DEFINE4(msgsnd, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE4()  argument
941 	return compat_ksys_msgsnd(msqid, msgp, msgsz, msgflg);  in COMPAT_SYSCALL_DEFINE4()
1041 static long do_msgrcv(int msqid, void __user *buf, size_t bufsz, long msgtyp, int msgflg,  in do_msgrcv()  argument
1052 	if (msqid < 0 || (long) bufsz < 0)  in do_msgrcv()
1065 	msq = msq_obtain_object_check(ns, msqid);  in do_msgrcv()
1199 long ksys_msgrcv(int msqid, struct msgbuf __user *msgp, size_t msgsz,  in ksys_msgrcv()  argument
1202 	return do_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg, do_msg_fill);  in ksys_msgrcv()
1205 SYSCALL_DEFINE5(msgrcv, int, msqid, struct msgbuf __user *, msgp, size_t, msgsz,  in SYSCALL_DEFINE5()  argument
1208 	return ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in SYSCALL_DEFINE5()
1226 long compat_ksys_msgrcv(int msqid, compat_uptr_t msgp, compat_ssize_t msgsz,  in compat_ksys_msgrcv()  argument
1229 	return do_msgrcv(msqid, compat_ptr(msgp), (ssize_t)msgsz, (long)msgtyp,  in compat_ksys_msgrcv()
1233 COMPAT_SYSCALL_DEFINE5(msgrcv, int, msqid, compat_uptr_t, msgp,  in COMPAT_SYSCALL_DEFINE5()  argument
1237 	return compat_ksys_msgrcv(msqid, msgp, msgsz, msgtyp, msgflg);  in COMPAT_SYSCALL_DEFINE5()