704 	pfn_t pfn = PFN_INVALID;  in kcage_get_pfn()  local
707 		return (pfn);  in kcage_get_pfn()
713 				pfn = --lp->curr;  in kcage_get_pfn()
718 				pfn = lp->curr++;  in kcage_get_pfn()
730 	return (pfn);  in kcage_get_pfn()
762 	static pfn_t pfn;  in kcage_walk_cage()  local
768 		pfn = PFN_INVALID;  in kcage_walk_cage()
771 	if (pfn == PFN_INVALID) {  in kcage_walk_cage()
783 			pfn = lp->curr;  in kcage_walk_cage()
792 			pfn = lp->base;  in kcage_walk_cage()
797 		if (pfn == lp->lim) {  in kcage_walk_cage()
803 			pfn = PFN_INVALID;  in kcage_walk_cage()
807 		ASSERT(pfn >= lp->curr && pfn < lp->lim);  in kcage_walk_cage()
809 		if (pfn == lp->curr) {  in kcage_walk_cage()
815 			pfn = PFN_INVALID;  in kcage_walk_cage()
819 		ASSERT(pfn >= lp->base && pfn < lp->curr);  in kcage_walk_cage()
822 	return (pfn++);  in kcage_walk_cage()
908 	pfn_t pfn;  in kcage_init()  local
953 	pfn = PFN_INVALID;			/* prime for alignment test */  in kcage_init()
955 		if ((pfn = kcage_get_pfn(0)) == PFN_INVALID)  in kcage_init()
958 		if ((pp = page_numtopp_nolock(pfn)) != NULL) {  in kcage_init()
1444 	pfn_t pfn;  in kcage_expand()  local
1480 		pfn = kcage_get_pfn(1);  in kcage_expand()
1481 		if (pfn == PFN_INVALID) {	/* eek! no where to grow */  in kcage_expand()
1488 		if ((pp = page_numtopp_nolock(pfn)) == NULL) {  in kcage_expand()
1497 		if (pfn_is_being_deleted(pfn)) {  in kcage_expand()
1673 	pfn_t pfn;  in kcage_cageout()  local
1690 	pfn = PFN_INVALID;		/* force scan reset */  in kcage_cageout()
1720 		if ((pfn = kcage_walk_cage(pfn == PFN_INVALID)) ==  in kcage_cageout()
1726 			start_pfn = pfn;  in kcage_cageout()
1727 		else if (start_pfn == pfn) {  in kcage_cageout()
1739 		pp = page_numtopp_nolock(pfn);  in kcage_cageout()