kbuild: install kernel-page-flags.h

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@gmail.com>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

diff --git a/include/linux/Kbuild b/include/linux/Kbuild
index ff0e5272a7c5bc3b4ebe5f66fd823677f3d9a05e..53397e8c5493f86d6aeea310741bd3420c707f99 100644 (file)
--- a/include/linux/Kbuild
+++ b/include/linux/Kbuild
@@ -228,6 +228,7 @@ header-y += kd.h
 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

diff --git a/include/linux/kernel-page-flags.h b/include/linux/kernel-page-flags.h
index 26a65711676f421dd1e287734ac4f781c713c8b0..a1bdf6966357b6b914d101c7545ef306fa395bdb 100644 (file)
--- a/include/linux/kernel-page-flags.h
+++ b/include/linux/kernel-page-flags.h
@@ -32,6 +32,8 @@
 #define KPF_KSM                        21
 #define KPF_THP                        22
 
+#ifdef __KERNEL__
+
 /* kernel hacking assistances
  * WARNING: subject to change, never rely on them!
  */
@@ -44,4 +46,6 @@
 #define KPF_ARCH               38
 #define KPF_UNCACHED           39
 
+#endif /* __KERNEL__ */
+
 #endif /* LINUX_KERNEL_PAGE_FLAGS_H */

diff --git a/tools/vm/page-types.c b/tools/vm/page-types.c
index 7dab7b25b5c6175fc536b46ddd87f3f7acd7b81c..f77c96bec7eb366529c4561f126deda3cdcbbf5b 100644 (file)
--- a/tools/vm/page-types.c
+++ b/tools/vm/page-types.c
@@ -35,6 +35,7 @@
 #include <sys/mount.h>
 #include <sys/statfs.h>
 #include "../../include/linux/magic.h"
+#include "../../include/linux/kernel-page-flags.h"
 
 
 #ifndef MAX_PATH
@@ -73,33 +74,6 @@
 #define KPF_BYTES              8
 #define PROC_KPAGEFLAGS                "/proc/kpageflags"
 
-/* copied from kpageflags_read() */
-#define KPF_LOCKED             0
-#define KPF_ERROR              1
-#define KPF_REFERENCED         2
-#define KPF_UPTODATE           3
-#define KPF_DIRTY              4
-#define KPF_LRU                        5
-#define KPF_ACTIVE             6
-#define KPF_SLAB               7
-#define KPF_WRITEBACK          8
-#define KPF_RECLAIM            9
-#define KPF_BUDDY              10
-
-/* [11-20] new additions in 2.6.31 */
-#define KPF_MMAP               11
-#define KPF_ANON               12
-#define KPF_SWAPCACHE          13
-#define KPF_SWAPBACKED         14
-#define KPF_COMPOUND_HEAD      15
-#define KPF_COMPOUND_TAIL      16
-#define KPF_HUGE               17
-#define KPF_UNEVICTABLE                18
-#define KPF_HWPOISON           19
-#define KPF_NOPAGE             20
-#define KPF_KSM                        21
-#define KPF_THP                        22
-
 /* [32-] kernel hacking assistances */
 #define KPF_RESERVED           32
 #define KPF_MLOCKED            33