From ed7b1889da256977574663689b598d88950bbd23 Mon Sep 17 00:00:00 2001
From: "Kirill A. Shutemov" <k.shutemov@gmail.com>
Date: Thu, 7 Feb 2008 00:15:56 -0800
Subject: [PATCH] Unexport asm/page.h

Do not export asm/page.h during make headers_install.  This removes PAGE_SIZE
from userspace headers.

Signed-off-by: Kirill A. Shutemov <k.shutemov@gmail.com>
Reviewed-by: David Woodhouse <dwmw2@infradead.org>
Cc: David Howells <dhowells@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---
 include/asm-frv/Kbuild         | 1 -
 include/asm-generic/Kbuild.asm | 3 ---
 include/asm-s390/kexec.h       | 2 ++
 include/linux/Kbuild           | 1 -
 include/linux/a.out.h          | 8 ++++++++
 include/linux/shm.h            | 8 ++++++++
 6 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/include/asm-frv/Kbuild b/include/asm-frv/Kbuild
index 966a9836d5..bc3f12c5b7 100644
--- a/include/asm-frv/Kbuild
+++ b/include/asm-frv/Kbuild
@@ -4,4 +4,3 @@ header-y += registers.h
 
 unifdef-y += termios.h
 unifdef-y += ptrace.h
-unifdef-y += page.h
diff --git a/include/asm-generic/Kbuild.asm b/include/asm-generic/Kbuild.asm
index d00fd67e63..57ba606359 100644
--- a/include/asm-generic/Kbuild.asm
+++ b/include/asm-generic/Kbuild.asm
@@ -27,6 +27,3 @@ unifdef-y += termbits.h
 unifdef-y += termios.h
 unifdef-y += types.h
 unifdef-y += unistd.h
-
-# These probably shouldn't be exported
-unifdef-y += page.h
diff --git a/include/asm-s390/kexec.h b/include/asm-s390/kexec.h
index 7592af708b..f219c6411e 100644
--- a/include/asm-s390/kexec.h
+++ b/include/asm-s390/kexec.h
@@ -10,7 +10,9 @@
 #ifndef _S390_KEXEC_H
 #define _S390_KEXEC_H
 
+#ifdef __KERNEL__
 #include <asm/page.h>
+#endif
 #include <asm/processor.h>
 /*
  * KEXEC_SOURCE_MEMORY_LIMIT maximum page get_free_page can return.
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index 0d4f55d97a..2ebf068ba5 100644
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -18,7 +18,6 @@ header-y += usb/
 
 header-y += affs_hardblocks.h
 header-y += aio_abi.h
-header-y += a.out.h
 header-y += arcfb.h
 header-y += atmapi.h
 header-y += atmbr2684.h
diff --git a/include/linux/a.out.h b/include/linux/a.out.h
index f913cc3e1b..82cd918f2a 100644
--- a/include/linux/a.out.h
+++ b/include/linux/a.out.h
@@ -128,12 +128,20 @@ enum machine_type {
 #endif
 
 #ifdef linux
+#ifdef __KERNEL__
 #include <asm/page.h>
+#else
+#include <unistd.h>
+#endif
 #if defined(__i386__) || defined(__mc68000__)
 #define SEGMENT_SIZE	1024
 #else
 #ifndef SEGMENT_SIZE
+#ifdef __KERNEL__
 #define SEGMENT_SIZE	PAGE_SIZE
+#else
+#define SEGMENT_SIZE   getpagesize()
+#endif
 #endif
 #endif
 #endif
diff --git a/include/linux/shm.h b/include/linux/shm.h
index eeaed921a1..eca6235a46 100644
--- a/include/linux/shm.h
+++ b/include/linux/shm.h
@@ -3,7 +3,11 @@
 
 #include <linux/ipc.h>
 #include <linux/errno.h>
+#ifdef __KERNEL__
 #include <asm/page.h>
+#else
+#include <unistd.h>
+#endif
 
 /*
  * SHMMAX, SHMMNI and SHMALL are upper limits are defaults which can
@@ -13,7 +17,11 @@
 #define SHMMAX 0x2000000		 /* max shared seg size (bytes) */
 #define SHMMIN 1			 /* min shared seg size (bytes) */
 #define SHMMNI 4096			 /* max num of segs system wide */
+#ifdef __KERNEL__
 #define SHMALL (SHMMAX/PAGE_SIZE*(SHMMNI/16)) /* max shm system wide (pages) */
+#else
+#define SHMALL (SHMMAX/getpagesize()*(SHMMNI/16))
+#endif
 #define SHMSEG SHMMNI			 /* max shared segs per process */
 
 #ifdef __KERNEL__
-- 
2.39.5