From: Ronnie Sahlberg <ronniesahlberg@gmail.com>
Date: Fri, 8 Oct 2010 02:14:14 +0000 (+1100)
Subject: change the hash function to use the much better Jenkins hash
X-Git-Url: http://git.samba.org/?p=metze%2Fctdb%2Fwip.git;a=commitdiff_plain;h=f7e91ae905cd61249028e15f2cb509ea69f10b9e

change the hash function to use the much better Jenkins hash
from the tdb library

cq S1020233
---

diff --git a/common/ctdb_util.c b/common/ctdb_util.c
index 4acfa3f3..749b9c28 100644
--- a/common/ctdb_util.c
+++ b/common/ctdb_util.c
@@ -99,14 +99,7 @@ bool ctdb_same_address(struct ctdb_address *a1, struct ctdb_address *a2)
 */
 uint32_t ctdb_hash(const TDB_DATA *key)
 {
-	uint32_t value;	/* Used to compute the hash value.  */
-	uint32_t i;	/* Used to cycle through random values. */
-
-	/* Set the initial value from the key size. */
-	for (value = 0x238F13AF * key->dsize, i=0; i < key->dsize; i++)
-		value = (value + (key->dptr[i] << (i*5 % 24)));
-
-	return (1103515243 * value + 12345);  
+	return tdb_jenkins_hash(discard_const(key));
 }
 
 /*