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authorAl Viro <viro@zeniv.linux.org.uk>2008-08-17 21:05:42 -0400
committerH. Peter Anvin <hpa@zytor.com>2008-10-22 22:55:20 -0700
commitbb8985586b7a906e116db835c64773b7a7d51663 (patch)
treede93ae58e88cc563d95cc124a73f3930594c6100 /arch/x86/include/asm/msgbuf.h
parent8ede0bdb63305d3353efd97e9af6210afb05734e (diff)
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>
Diffstat (limited to 'arch/x86/include/asm/msgbuf.h')
-rw-r--r--arch/x86/include/asm/msgbuf.h39
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 000000000000..1b538c907a3d
--- /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 */