Move BITS_PER_LONG define to arch
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/hash.h b/hash.h
index 3e7854b..73f961b 100644
--- a/hash.h
+++ b/hash.h
@@ -1,5 +1,8 @@
#ifndef _LINUX_HASH_H
#define _LINUX_HASH_H
+
+#include "arch/arch.h"
+
/* Fast hashing routine for a long.
(C) 2002 William Lee Irwin III, IBM */
@@ -14,12 +17,6 @@
* machines where multiplications are slow.
*/
-#ifdef __WORDSIZE
-#define BITS_PER_LONG __WORDSIZE
-#else
-#define BITS_PER_LONG 32
-#endif
-
#if BITS_PER_LONG == 32
/* 2^31 + 2^29 - 2^25 + 2^22 - 2^19 - 2^16 + 1 */
#define GOLDEN_RATIO_PRIME 0x9e370001UL