139     vm_map_entry_t gap_entry);
4624 vm_map_growstack(vm_map_t map, vm_offset_t addr, vm_map_entry_t gap_entry)  in vm_map_growstack()  argument
4661 	if (gap_entry == NULL && !vm_map_lookup_entry(map, addr, &gap_entry))  in vm_map_growstack()
4663 	if ((gap_entry->eflags & MAP_ENTRY_GUARD) == 0)  in vm_map_growstack()
4665 	if ((gap_entry->eflags & MAP_ENTRY_STACK_GAP_DN) != 0) {  in vm_map_growstack()
4666 		stack_entry = vm_map_entry_succ(gap_entry);  in vm_map_growstack()
4668 		    stack_entry->start != gap_entry->end)  in vm_map_growstack()
4672 	} else if ((gap_entry->eflags & MAP_ENTRY_STACK_GAP_UP) != 0) {  in vm_map_growstack()
4673 		stack_entry = vm_map_entry_pred(gap_entry);  in vm_map_growstack()
4675 		    stack_entry->end != gap_entry->start)  in vm_map_growstack()
4684 	    gap_entry->next_read;  in vm_map_growstack()
4685 	max_grow = gap_entry->end - gap_entry->start;  in vm_map_growstack()
4766 		gap_entry = NULL;  in vm_map_growstack()
4772 		grow_start = gap_entry->end - grow_amount;  in vm_map_growstack()
4773 		if (gap_entry->start + grow_amount == gap_entry->end) {  in vm_map_growstack()
4774 			gap_start = gap_entry->start;  in vm_map_growstack()
4775 			gap_end = gap_entry->end;  in vm_map_growstack()
4776 			vm_map_entry_delete(map, gap_entry);  in vm_map_growstack()
4779 			MPASS(gap_entry->start < gap_entry->end - grow_amount);  in vm_map_growstack()
4780 			vm_map_entry_resize(map, gap_entry, -grow_amount);  in vm_map_growstack()
4794 				vm_map_entry_resize(map, gap_entry,  in vm_map_growstack()
4810 			if (gap_entry->start + grow_amount == gap_entry->end) {  in vm_map_growstack()
4811 				vm_map_entry_delete(map, gap_entry);  in vm_map_growstack()
4815 				gap_entry->start += grow_amount;  in vm_map_growstack()