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 <[email protected]> Acked-by: KOSAKI Motohiro <[email protected]> Acked-by: Fengguang Wu <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>
rtvt123 · May 29, 2012 · 9295b7a · 9295b7a
1 parent a62e2f4
commit 9295b7a
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Showing 3 changed files with 6 additions and 27 deletions.
diff --git a/include/linux/Kbuild b/include/linux/Kbuild
@@ -225,6 +225,7 @@ 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
@@ -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
@@ -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