137     vm_map_entry_t gap_entry);
4587 	vm_map_entry_t gap_entry, new_entry, prev_entry;  in vm_map_stack_locked()  local
4662 	    MAP_CREATE_STACK_GAP_DN : MAP_CREATE_STACK_GAP_UP), &gap_entry);  in vm_map_stack_locked()
4664 		KASSERT((gap_entry->eflags & MAP_ENTRY_GUARD) != 0,  in vm_map_stack_locked()
4665 		    ("entry %p not gap %#x", gap_entry, gap_entry->eflags));  in vm_map_stack_locked()
4666 		KASSERT((gap_entry->eflags & (MAP_ENTRY_STACK_GAP_DN |  in vm_map_stack_locked()
4668 		    ("entry %p not stack gap %#x", gap_entry,  in vm_map_stack_locked()
4669 		    gap_entry->eflags));  in vm_map_stack_locked()
4680 		gap_entry->next_read = sgp;  in vm_map_stack_locked()
4681 		gap_entry->offset = prot | PROT_MAX(max);  in vm_map_stack_locked()
4693 vm_map_growstack(vm_map_t map, vm_offset_t addr, vm_map_entry_t gap_entry)  in vm_map_growstack()  argument
4731 	if (gap_entry == NULL && !vm_map_lookup_entry(map, addr, &gap_entry))  in vm_map_growstack()
4733 	if ((gap_entry->eflags & MAP_ENTRY_GUARD) == 0)  in vm_map_growstack()
4735 	if ((gap_entry->eflags & MAP_ENTRY_STACK_GAP_DN) != 0) {  in vm_map_growstack()
4736 		stack_entry = vm_map_entry_succ(gap_entry);  in vm_map_growstack()
4738 		    stack_entry->start != gap_entry->end)  in vm_map_growstack()
4742 	} else if ((gap_entry->eflags & MAP_ENTRY_STACK_GAP_UP) != 0) {  in vm_map_growstack()
4743 		stack_entry = vm_map_entry_pred(gap_entry);  in vm_map_growstack()
4745 		    stack_entry->end != gap_entry->start)  in vm_map_growstack()
4754 	    gap_entry->next_read;  in vm_map_growstack()
4755 	max_grow = gap_entry->end - gap_entry->start;  in vm_map_growstack()
4836 		gap_entry = NULL;  in vm_map_growstack()
4846 		prot = PROT_EXTRACT(gap_entry->offset);  in vm_map_growstack()
4847 		max = PROT_MAX_EXTRACT(gap_entry->offset);  in vm_map_growstack()
4848 		sgp = gap_entry->next_read;  in vm_map_growstack()
4850 		grow_start = gap_entry->end - grow_amount;  in vm_map_growstack()
4851 		if (gap_entry->start + grow_amount == gap_entry->end) {  in vm_map_growstack()
4852 			gap_start = gap_entry->start;  in vm_map_growstack()
4853 			gap_end = gap_entry->end;  in vm_map_growstack()
4854 			vm_map_entry_delete(map, gap_entry);  in vm_map_growstack()
4857 			MPASS(gap_entry->start < gap_entry->end - grow_amount);  in vm_map_growstack()
4858 			vm_map_entry_resize(map, gap_entry, -grow_amount);  in vm_map_growstack()
4868 				    &gap_entry);  in vm_map_growstack()
4870 				gap_entry->next_read = sgp;  in vm_map_growstack()
4871 				gap_entry->offset = prot | PROT_MAX(max);  in vm_map_growstack()
4873 				vm_map_entry_resize(map, gap_entry,  in vm_map_growstack()
4889 			if (gap_entry->start + grow_amount == gap_entry->end) {  in vm_map_growstack()
4890 				vm_map_entry_delete(map, gap_entry);  in vm_map_growstack()
4894 				gap_entry->start += grow_amount;  in vm_map_growstack()