From: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Date: Sun, 11 Sep 2011 01:11:56 +0000 (-0700)
Subject: rculfhash: Fix off-by-one in fini_table
X-Git-Tag: v0.7.0~43^2~165
X-Git-Url: https://git.lttng.org./?a=commitdiff_plain;h=21263e2119a45df1dfa25e71e7a4dd15af73f791;p=userspace-rcu.git

rculfhash: Fix off-by-one in fini_table

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

diff --git a/rculfhash.c b/rculfhash.c
index 4b781f7..f6c901b 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -890,8 +890,12 @@ void fini_table(struct cds_lfht *ht, struct rcu_table *t,
 
 		len = !i ? 1 : 1UL << (i - 1);
 		dbg_printf("fini order %lu len: %lu\n", i, len);
-		/* Update table size */
-		t->size = 1UL << (i - 1);
+		/*
+		 * Update table size. Need to shrink this table prior to
+		 * removal so gc lookups use non-logically-removed dummy
+		 * nodes.
+		 */
+		t->size = 1UL << (i - 2);
 		/* Unlink */
 		for (j = 0; j < len; j++) {
 			struct cds_lfht_node *fini_node =