X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=rculfhash.c;h=3ad3618aa7297ee5403d176d5c7f0e02be504def;hp=e9cf0622f53576ef8ad8c08eda082c37f1151b86;hb=3e056c21610d5c0c5591fcb0bc714dfe26bff3a3;hpb=71bb3aca70894bd78ec75f47c0c464261ad1dc86

diff --git a/rculfhash.c b/rculfhash.c
index e9cf062..3ad3618 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.