1 files changed, 37 insertions, 0 deletions

diff --git a/arch/s390/include/uapi/asm/msgbuf.h b/arch/s390/include/uapi/asm/msgbuf.h
new file mode 100644
index 000000000000..1bbdee927924
--- /dev/null
+++ b/arch/s390/include/uapi/asm/msgbuf.h
@@ -0,0 +1,37 @@
+#ifndef _S390_MSGBUF_H
+#define _S390_MSGBUF_H
+
+/* 
+ * The msqid64_ds structure for S/390 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ */
+
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+#ifndef __s390x__
+        unsigned long   __unused1;
+#endif /* ! __s390x__ */
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+#ifndef __s390x__
+        unsigned long   __unused2;
+#endif /* ! __s390x__ */
+        __kernel_time_t msg_ctime;      /* last change time */
+#ifndef __s390x__
+        unsigned long   __unused3;
+#endif /* ! __s390x__ */
+        unsigned long  msg_cbytes;      /* current number of bytes on queue */
+        unsigned long  msg_qnum;        /* number of messages in queue */
+        unsigned long  msg_qbytes;      /* max number of bytes on queue */
+        __kernel_pid_t msg_lspid;       /* pid of last msgsnd */
+        __kernel_pid_t msg_lrpid;       /* last receive pid */
+        unsigned long  __unused4;
+        unsigned long  __unused5;
+};
+
+#endif /* _S390_MSGBUF_H */