X-Git-Url: https://git.liburcu.org/?a=blobdiff_plain;f=rculfhash.c;h=b8fbb6481d9291a6226f2200f8374b810ffd34af;hb=0b8ab7df078a6d8e1439b1db5849638892e1cc83;hp=e9cf0622f53576ef8ad8c08eda082c37f1151b86;hpb=71bb3aca70894bd78ec75f47c0c464261ad1dc86;p=urcu.git

diff --git a/rculfhash.c b/rculfhash.c
index e9cf062..b8fbb64 100644
--- a/rculfhash.c
+++ b/rculfhash.c
@@ -1073,6 +1073,11 @@ int _cds_lfht_del(struct cds_lfht *ht, unsigned long size,
 	if (caa_unlikely(is_removed(next)))
 		return -ENOENT;
 	assert(!is_bucket(next));
+	/*
+	 * The del operation semantic guarantees a full memory barrier
+	 * before the uatomic_or atomic commit of the deletion flag.
+	 */
+	cmm_smp_mb__before_uatomic_or();
 	/*
 	 * We set the REMOVED_FLAG unconditionally. Note that there may
 	 * be more than one concurrent thread setting this flag.
@@ -1723,8 +1728,10 @@ int cds_lfht_destroy(struct cds_lfht *ht, pthread_attr_t **attr)
 	/* Wait for in-flight resize operations to complete */
 	_CMM_STORE_SHARED(ht->in_progress_destroy, 1);
 	cmm_smp_mb();	/* Store destroy before load resize */
+	ht->flavor->thread_offline();
 	while (uatomic_read(&ht->in_progress_resize))
 		poll(NULL, 0, 100);	/* wait for 100ms */
+	ht->flavor->thread_online();
 	ret = cds_lfht_delete_bucket(ht);
 	if (ret)
 		return ret;