From 3e37f0d0f685e19d9e46a17ccd3a88a38a2a80a6 Mon Sep 17 00:00:00 2001
From: Mark Riddoch <Mark.Riddoch@skysql.com>
Date: Fri, 19 Dec 2014 15:54:05 +0000
Subject: [PATCH] Fixed race condition on hashtable n_readers field

---
 server/core/hashtable.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/server/core/hashtable.c b/server/core/hashtable.c
index a513c0367..243158a70 100644
--- a/server/core/hashtable.c
+++ b/server/core/hashtable.c
@@ -503,7 +503,7 @@ hashtable_read_lock(HASHTABLE *table)
 			;
 		spinlock_acquire(&table->spin);
 	}
-	table->n_readers++;
+	atomic_add(&table->n_readers, 1);
 	spinlock_release(&table->spin);
 }