/* Cancel a blocked lock request. We always use an async RPC call for this in order not to hang a process that has been Ctrl-C'ed.  */
static int nlmclnt_cancel(struct nlm_host *, int, struct file_lock *)
/* Cancel a blocked lock request. We always use an async RPC call for this in order not to hang a process that has been Ctrl-C'ed.  */
static int nlmclnt_cancel(struct nlm_host *, int, struct file_lock *)
{
	struct nlm_rqst	*req;
	int status;
	dprintk("lockd: blocking lock attempt was interrupted by a signal.\n"
		"       Attempting to cancel lock.\n");
	req = nlm_alloc_call(nlm_get_host(host));
	if (!req)
		return -ENOMEM;
	req->a_flags = RPC_TASK_ASYNC;
	nlmclnt_setlockargs(req, fl);
	req->a_args.block = block;
	atomic_inc(&req->a_count);
	status = nlmclnt_async_call(nfs_file_cred(fl->fl_file), req,
			NLMPROC_CANCEL, &nlmclnt_cancel_ops);
	if (status == 0 && req->a_res.status == nlm_lck_denied)
		status = -ENOLCK;
	nlm_release_call(req);
	return status;
}