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>

1 files changed, 8 insertions, 0 deletions

diff --git a/include/linux/shm.h b/include/linux/shm.h
index eeaed921a1dc..eca6235a46c0 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__