From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 8 Sep 2011 00:15:20 +0000 (-0700)
Subject: rculfhash: deal with resize to size 1 corner-case
X-Git-Tag: v0.7.0~43^2~173
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=dd51e0ad14ab677d0fab45b492150adce2ee863e;p=userspace-rcu.git

rculfhash: deal with resize to size 1 corner-case

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
---

diff --git a/rculfhash.c b/rculfhash.c
index cd60f5f..b74739f 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -803,7 +803,7 @@ int _cds_lfht_remove(struct cds_lfht *ht, struct rcu_table *t,
 	 */
 
 	if (dummy_removal)
-		index = hash & ((t->size >> 1) - 1);
+		index = hash & ((t->size == 1) ? 0 : (t->size >> 1) - 1);
 	else
 		index = hash & (t->size - 1);
 	order = get_count_order_ulong(index + 1);