From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Thu, 7 Jul 2011 15:13:06 +0000 (-0400)
Subject: rculfhash: fix add unique
X-Git-Tag: v0.7.0~43^2~212
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=e43f23f80fca2d7c3e5ae1b412649fdf20bb8f9c;p=urcu.git

rculfhash: fix add unique

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

diff --git a/rculfhash.c b/rculfhash.c
index 11c0077..1ccd3f1 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -262,6 +262,12 @@ int _ht_add(struct rcu_ht *ht, struct rcu_table *t, struct rcu_ht_node *node,
 			next = rcu_dereference(clear_flag(iter)->next);
 			if (is_removed(next))
 				goto gc_node;
+			if (unique
+			    && !clear_flag(iter)->dummy
+			    && !ht->compare_fct(node->key, node->key_len,
+						clear_flag(iter)->key,
+						clear_flag(iter)->key_len))
+				return -EEXIST;
 			/* Only account for identical reverse hash once */
 			if (iter_prev->reverse_hash != clear_flag(iter)->reverse_hash)
 				check_resize(ht, t, ++chain_len);