linux-kernel - [ 81/82] kbuild: install kernel-page-flags.h

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Date:	Fri, 08 Jun 2012 05:20:01 +0100
From:	Ben Hutchings <ben@...adent.org.uk>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Ulrich Drepper <drepper@...adia.org>,
	Ulrich Drepper <drepper@...il.com>,
	KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>,
	Fengguang Wu <fengguang.wu@...el.com>
Subject: [ 81/82] kbuild: install kernel-page-flags.h

3.2-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Ulrich Drepper <drepper@...adia.org>

commit 9295b7a07c859a42346221b5839be0ae612333b0 upstream.

Programs using /proc/kpageflags need to know about the various flags.  The
<linux/kernel-page-flags.h> provides them and the comments in the file
indicate that it is supposed to be used by user-level code.  But the file
is not installed.

Install the headers and mark the unstable flags as out-of-bounds.  The
page-type tool is also adjusted to not duplicate the definitions

Signed-off-by: Ulrich Drepper <drepper@...il.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@...fujitsu.com>
Acked-by: Fengguang Wu <fengguang.wu@...el.com>
Signed-off-by: Andrew Morton <akpm@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
[bwh: Backported to 3.2: adjust context; drop change to missing tools/vm/]
Signed-off-by: Ben Hutchings <ben@...adent.org.uk>
---
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -224,6 +224,7 @@
 header-y += kdev_t.h
 header-y += kernel.h
 header-y += kernelcapi.h
+header-y += kernel-page-flags.h
 header-y += keyboard.h
 header-y += keyctl.h
 header-y += l2tp.h
--- a/include/linux/kernel-page-flags.h
+++ b/include/linux/kernel-page-flags.h
@@ -31,6 +31,8 @@
 
 #define KPF_KSM			21
 
+#ifdef __KERNEL__
+
 /* kernel hacking assistances
  * WARNING: subject to change, never rely on them!
  */
@@ -43,4 +45,6 @@
 #define KPF_ARCH		38
 #define KPF_UNCACHED		39
 
+#endif /* __KERNEL__ */
+
 #endif /* LINUX_KERNEL_PAGE_FLAGS_H */


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