#include <linux/percpu.h>
#include <linux/cache.h>
+#include <linux/types.h>
+
#include <asm/pgtable.h>
/*
#define PG_nosave_free 18 /* Free, should not be written */
#define PG_buddy 19 /* Page is free, on buddy lists */
-#define PG_uncached 20 /* Page has been mapped as uncached */
+
+#if (BITS_PER_LONG > 32)
+/*
+ * 64-bit-only flags build down from bit 31
+ *
+ * 32 bit -------------------------------| FIELDS | FLAGS |
+ * 64 bit | FIELDS | ?????? FLAGS |
+ * 63 32 0
+ */
+#define PG_uncached 31 /* Page has been mapped as uncached */
+#endif
/*
* Global page accounting. One instance per CPU. Only unsigned longs are