453 ktr_io_params_ref(struct ktr_io_params *kiop)  in ktr_io_params_ref()  argument
456 	kiop->refs++;  in ktr_io_params_ref()
460 ktr_io_params_rele(struct ktr_io_params *kiop)  in ktr_io_params_rele()  argument
463 	if (kiop == NULL)  in ktr_io_params_rele()
465 	KASSERT(kiop->refs > 0, ("kiop ref == 0 %p", kiop));  in ktr_io_params_rele()
466 	return (--(kiop->refs) == 0 ? kiop : NULL);  in ktr_io_params_rele()
470 ktr_io_params_free(struct ktr_io_params *kiop)  in ktr_io_params_free()  argument
472 	if (kiop == NULL)  in ktr_io_params_free()
475 	MPASS(kiop->refs == 0);  in ktr_io_params_free()
476 	vn_close(kiop->vp, FWRITE, kiop->cr, curthread);  in ktr_io_params_free()
477 	crfree(kiop->cr);  in ktr_io_params_free()
478 	free(kiop, M_KTRACE);  in ktr_io_params_free()
502 	struct ktr_io_params *kiop;  in ktr_freeproc()  local
507 	kiop = ktr_io_params_rele(p->p_ktrioparms);  in ktr_freeproc()
514 	return (kiop);  in ktr_freeproc()
608 	struct ktr_io_params *kiop;  in ktrprocexec()  local
612 	kiop = p->p_ktrioparms;  in ktrprocexec()
613 	if (kiop == NULL || priv_check_cred(kiop->cr, PRIV_DEBUG_DIFFCRED) == 0)  in ktrprocexec()
617 	kiop = ktr_freeproc(p);  in ktrprocexec()
619 	return (kiop);  in ktrprocexec()
631 	struct ktr_io_params *kiop;  in ktrprocexit()  local
646 	kiop = ktr_freeproc(p);  in ktrprocexit()
649 	ktr_io_params_free(kiop);  in ktrprocexit()
1091 	struct ktr_io_params *kiop, *old_kiop;  in sys_ktrace()  local
1099 	kiop = NULL;  in sys_ktrace()
1116 		kiop = ktr_io_params_alloc(td, vp);  in sys_ktrace()
1176 				ret |= ktrsetchildren(td, p, ops, facs, kiop);  in sys_ktrace()
1178 				ret |= ktrops(td, p, ops, facs, kiop);  in sys_ktrace()
1191 			ret |= ktrsetchildren(td, p, ops, facs, kiop);  in sys_ktrace()
1193 			ret |= ktrops(td, p, ops, facs, kiop);  in sys_ktrace()
1199 	if (kiop != NULL) {  in sys_ktrace()
1201 		kiop = ktr_io_params_rele(kiop);  in sys_ktrace()
1203 		ktr_io_params_free(kiop);  in sys_ktrace()
1343 	struct ktr_io_params *kiop, *kiop1;  in ktr_writerequest()  local
1362 	kiop = p->p_ktrioparms;  in ktr_writerequest()
1368 	if (kiop == NULL) {  in ktr_writerequest()
1373 	ktr_io_params_ref(kiop);  in ktr_writerequest()
1374 	vp = kiop->vp;  in ktr_writerequest()
1375 	cred = kiop->cr;  in ktr_writerequest()
1376 	lim = kiop->lim;  in ktr_writerequest()
1422 		kiop = ktr_io_params_rele(kiop);  in ktr_writerequest()
1424 		ktr_io_params_free(kiop);  in ktr_writerequest()
1442 	kiop = ktr_io_params_rele(kiop);  in ktr_writerequest()
1446 	ktr_io_params_free(kiop);  in ktr_writerequest()