linux-master/mm/mmap.c

1567  * unmapped_area() - Find an area between the low_limit and the high_limit with
1571  * @info: The unmapped area information including the range [low_limit -
1579 	unsigned long low_limit, high_limit;
1588 	low_limit = info->low_limit;
1589 	if (low_limit < mmap_min_addr)
1590 		low_limit = mmap_min_addr;
1593 	if (vma_iter_area_lowest(&vmi, low_limit, high_limit, length))
1607 			low_limit = tmp->vm_end;
1614 			low_limit = vm_end_gap(tmp);
1624  * unmapped_area_topdown() - Find an area between the low_limit and the
1628  * @info: The unmapped area information including the range [low_limit -
1636 	unsigned long low_limit, high_limit;
1645 	low_limit = info->low_limit;
1646 	if (low_limit < mmap_min_addr)
1647 		low_limit = mmap_min_addr;
1650 	if (vma_iter_area_highest(&vmi, low_limit, high_limit, length))
1680  * - is contained within the [low_limit, high_limit) interval;
1734 	info.low_limit = mm->mmap_base;
1782 	info.low_limit = PAGE_SIZE;
1795 		info.low_limit = TASK_UNMAPPED_BASE;