x86, um: ... and asm-x86 move

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/arch/x86/include/asm/msgbuf.h b/arch/x86/include/asm/msgbuf.h
new file mode 100644
index 00000000000..1b538c907a3
--- /dev/null
+++ b/arch/x86/include/asm/msgbuf.h
@@ -0,0 +1,39 @@
+#ifndef ASM_X86__MSGBUF_H
+#define ASM_X86__MSGBUF_H
+
+/*
+ * The msqid64_ds structure for i386 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space on i386 is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * Pad space on x8664 is left for:
+ * - 2 miscellaneous 64-bit values
+ */
+struct msqid64_ds {
+        struct ipc64_perm msg_perm;
+        __kernel_time_t msg_stime;      /* last msgsnd time */
+#ifdef __i386__
+        unsigned long   __unused1;
+#endif
+        __kernel_time_t msg_rtime;      /* last msgrcv time */
+#ifdef __i386__
+        unsigned long   __unused2;
+#endif
+        __kernel_time_t msg_ctime;      /* last change time */
+#ifdef __i386__
+        unsigned long   __unused3;
+#endif
+        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 /* ASM_X86__MSGBUF_H */