OCFS2_CONTROL_MESSAGE_SETVERSION_OP 404 fs/ocfs2/stack_user.c if (strncmp(msg->tag, OCFS2_CONTROL_MESSAGE_SETVERSION_OP, OCFS2_CONTROL_MESSAGE_SETVERSION_OP 494 fs/ocfs2/stack_user.c !strncmp(msg.tag, OCFS2_CONTROL_MESSAGE_SETVERSION_OP,