x86: merge shmbuf_32/64.h

Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 50 insertions, 12 deletions

diff --git a/include/asm-x86/shmbuf.h b/include/asm-x86/shmbuf.h
index e85f1cb11217..b51413b74971 100644
--- a/include/asm-x86/shmbuf.h
+++ b/include/asm-x86/shmbuf.h
@@ -1,13 +1,51 @@
-#ifdef __KERNEL__
-# ifdef CONFIG_X86_32
-#  include "shmbuf_32.h"
-# else
-#  include "shmbuf_64.h"
-# endif
-#else
-# ifdef __i386__
-#  include "shmbuf_32.h"
-# else
-#  include "shmbuf_64.h"
-# endif
+#ifndef _ASM_X86_SHMBUF_H
+#define _ASM_X86_SHMBUF_H
+
+/*
+ * The shmid64_ds structure for x86 architecture.
+ * Note extra padding because this structure is passed back and forth
+ * between kernel and user space.
+ *
+ * Pad space on 32 bit is left for:
+ * - 64-bit time_t to solve y2038 problem
+ * - 2 miscellaneous 32-bit values
+ *
+ * Pad space on 64 bit is left for:
+ * - 2 miscellaneous 64-bit values
+ */
+
+struct shmid64_ds {
+        struct ipc64_perm       shm_perm;       /* operation perms */
+        size_t                  shm_segsz;      /* size of segment (bytes) */
+        __kernel_time_t         shm_atime;      /* last attach time */
+#ifdef __i386__
+        unsigned long           __unused1;
 #endif
+        __kernel_time_t         shm_dtime;      /* last detach time */
+#ifdef __i386__
+        unsigned long           __unused2;
+#endif
+        __kernel_time_t         shm_ctime;      /* last change time */
+#ifdef __i386__
+        unsigned long           __unused3;
+#endif
+        __kernel_pid_t          shm_cpid;       /* pid of creator */
+        __kernel_pid_t          shm_lpid;       /* pid of last operator */
+        unsigned long           shm_nattch;     /* no. of current attaches */
+        unsigned long           __unused4;
+        unsigned long           __unused5;
+};
+
+struct shminfo64 {
+        unsigned long   shmmax;
+        unsigned long   shmmin;
+        unsigned long   shmmni;
+        unsigned long   shmseg;
+        unsigned long   shmall;
+        unsigned long   __unused1;
+        unsigned long   __unused2;
+        unsigned long   __unused3;
+        unsigned long   __unused4;
+};
+
+#endif /* _ASM_X86_SHMBUF_H */