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	static void			static void
	gctl_copyin(struct gctl_req *req)			gctl_copyin(struct gctl_req *req)
	{			{
	struct gctl_req_arg *ap;			struct gctl_req_arg *ap;
	char *p;			char *p;
	u_int i;			u_int i;

	if (req->narg > 2048) {			if (req->narg > GEOM_CTL_ARG_MAX) {
	gctl_error(req, "too many arguments");			gctl_error(req, "too many arguments");
	req->arg = NULL;			req->arg = NULL;
	return;			return;
	}			}

	ap = geom_alloc_copyin(req, req->arg, req->narg * sizeof(*ap));			ap = geom_alloc_copyin(req, req->arg, req->narg * sizeof(*ap));
	if (ap == NULL) {			if (ap == NULL) {
	gctl_error(req, "bad control request");			gctl_error(req, "bad control request");
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