dummy node is the first node of the identical-hash-value chain
Signed-off-by: Lai Jiangshan <[email protected]>
---
rculfhash.c | 3 +++
1 files changed, 3 insertions(+), 0 deletions(-)
diff --git a/rculfhash.c b/rculfhash.c
index 3ded228..d7a4df3 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -875,6 +875,9 @@ struct cds_lfht_node *_cds_lfht_add(struct cds_lfht *ht,
goto insert;
if (likely(clear_flag(iter)->p.reverse_hash >
node->p.reverse_hash))
goto insert;
+ /* dummy node is the first node of the
identical-hash-value chain */
+ if (dummy && clear_flag(iter)->p.reverse_hash ==
node->p.reverse_hash)
+ goto insert;
next = rcu_dereference(clear_flag(iter)->p.next);
if (unlikely(is_removed(next)))
goto gc_node;
--
1.7.4.4
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