1/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */ 2#ifndef _S390_MSGBUF_H 3#define _S390_MSGBUF_H 4 5/* 6 * The msqid64_ds structure for S/390 architecture. 7 * Note extra padding because this structure is passed back and forth 8 * between kernel and user space. 9 * 10 * Pad space is left for: 11 * - 64-bit time_t to solve y2038 problem 12 * - 2 miscellaneous 32-bit values 13 */ 14 15struct msqid64_ds { 16 struct ipc64_perm msg_perm; 17 __kernel_time_t msg_stime; /* last msgsnd time */ 18#ifndef __s390x__ 19 unsigned long __unused1; 20#endif /* ! __s390x__ */ 21 __kernel_time_t msg_rtime; /* last msgrcv time */ 22#ifndef __s390x__ 23 unsigned long __unused2; 24#endif /* ! __s390x__ */ 25 __kernel_time_t msg_ctime; /* last change time */ 26#ifndef __s390x__ 27 unsigned long __unused3; 28#endif /* ! __s390x__ */ 29 unsigned long msg_cbytes; /* current number of bytes on queue */ 30 unsigned long msg_qnum; /* number of messages in queue */ 31 unsigned long msg_qbytes; /* max number of bytes on queue */ 32 __kernel_pid_t msg_lspid; /* pid of last msgsnd */ 33 __kernel_pid_t msg_lrpid; /* last receive pid */ 34 unsigned long __unused4; 35 unsigned long __unused5; 36}; 37 38#endif /* _S390_MSGBUF_H */ 39