spin_lock_bh(&appldata_ops_lock);
spin_lock(&appldata_ops_lock);
void appldata_unregister_ops(struct appldata_ops *ops){	spin_lock_bh(&appldata_ops_lock);	unregister_sysctl_table(ops->sysctl_header);	list_del(&ops->list);	kfree(ops->ctl_table);	ops->ctl_table = NULL;	spin_unlock_bh(&appldata_ops_lock);	P_INFO("%s-ops unregistered!\n", ops->name);}