1922 	unsigned long length, low_limit, high_limit, gap_start, gap_end;  in unmapped_area()  local
1958 		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;  in unmapped_area()
1961 		if (gap_start > high_limit)  in unmapped_area()
1964 		    gap_end > gap_start && gap_end - gap_start >= length)  in unmapped_area()
1986 				gap_start = vm_end_gap(vma->vm_prev);  in unmapped_area()
1995 	gap_start = mm->highest_vm_end;  in unmapped_area()
1997 	if (gap_start > high_limit)  in unmapped_area()
2002 	if (gap_start < info->low_limit)  in unmapped_area()
2003 		gap_start = info->low_limit;  in unmapped_area()
2006 	gap_start += (info->align_offset - gap_start) & info->align_mask;  in unmapped_area()
2008 	VM_BUG_ON(gap_start + info->length > info->high_limit);  in unmapped_area()
2009 	VM_BUG_ON(gap_start + info->length > gap_end);  in unmapped_area()
2010 	return gap_start;  in unmapped_area()
2017 	unsigned long length, low_limit, high_limit, gap_start, gap_end;  in unmapped_area_topdown()  local
2038 	gap_start = mm->highest_vm_end;  in unmapped_area_topdown()
2039 	if (gap_start <= high_limit)  in unmapped_area_topdown()
2051 		gap_start = vma->vm_prev ? vm_end_gap(vma->vm_prev) : 0;  in unmapped_area_topdown()
2052 		if (gap_start <= high_limit && vma->vm_rb.rb_right) {  in unmapped_area_topdown()
2067 		if (gap_start <= high_limit &&  in unmapped_area_topdown()
2068 		    gap_end > gap_start && gap_end - gap_start >= length)  in unmapped_area_topdown()
2090 				gap_start = vma->vm_prev ?  in unmapped_area_topdown()
2108 	VM_BUG_ON(gap_end < gap_start);  in unmapped_area_topdown()