* st.c (st_update): add existing parameter to the callback function.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@35170 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 1 deletions

diff --git a/load.c b/load.c
index a320c51fc4..b85d903f6f 100644
--- a/load.c
+++ b/load.c
@@ -417,9 +417,10 @@ load_lock(const char *ftptr)
 }
 
 static int
-release_barrier(st_data_t key, st_data_t *value, st_data_t done)
+release_barrier(st_data_t key, st_data_t *value, st_data_t done, int existing)
 {
     VALUE barrier = (VALUE)*value;
+    if (!existing) return ST_STOP;
     if (done ? rb_barrier_destroy(barrier) : rb_barrier_release(barrier)) {
 	/* still in-use */
 	return ST_CONTINUE;