staging/lustre: move IFTODT/DTTOIF to lustre_idl.h

They are in fact definition of how client/server talks
to each other about file type.

Cc: Andreas Dilger <andreas.dilger@intel.com>
Signed-off-by: Peng Tao <bergwolf@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/lustre/include/linux/libcfs/linux/linux-fs.h

@@ -61,15 +61,4 @@
 #define flock_end(fl)			((fl)->fl_end)
 #define flock_set_end(fl, end)		do { (fl)->fl_end = (end); } while (0)
 
-#ifndef IFSHIFT
-#define IFSHIFT			12
-#endif
-
-#ifndef IFTODT
-#define IFTODT(type)		(((type) & S_IFMT) >> IFSHIFT)
-#endif
-#ifndef DTTOIF
-#define DTTOIF(dirtype)		((dirtype) << IFSHIFT)
-#endif
-
 #endif

drivers/staging/lustre/lustre/include/lustre/lustre_idl.h

@@ -1025,6 +1025,18 @@ struct luda_type {
 	__u16 lt_type;
 };
 
+#ifndef IFSHIFT
+#define IFSHIFT                 12
+#endif
+
+#ifndef IFTODT
+#define IFTODT(type)		(((type) & S_IFMT) >> IFSHIFT)
+#endif
+#ifndef DTTOIF
+#define DTTOIF(dirtype)		((dirtype) << IFSHIFT)
+#endif
+
+
 struct lu_dirpage {
 	__u64	    ldp_hash_start;
 	__u64	    ldp_hash_end;