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-rw-r--r--sql/mysqld.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/sql/mysqld.h b/sql/mysqld.h
index ed6685828ba..57698dc5d9b 100644
--- a/sql/mysqld.h
+++ b/sql/mysqld.h
@@ -585,7 +585,7 @@ extern mysql_mutex_t LOCK_des_key_file;
extern mysql_mutex_t LOCK_server_started;
extern mysql_cond_t COND_server_started;
extern mysql_rwlock_t LOCK_grant, LOCK_sys_init_connect, LOCK_sys_init_slave;
-extern mysql_rwlock_t LOCK_system_variables_hash;
+extern mysql_prlock_t LOCK_system_variables_hash;
extern mysql_cond_t COND_thread_count, COND_start_thread;
extern mysql_cond_t COND_manager;
extern mysql_cond_t COND_slave_background;