importer          732 mm/mmap.c      		struct vm_area_struct *exporter = NULL, *importer = NULL;
importer          771 mm/mmap.c      			importer = vma;
importer          787 mm/mmap.c      			importer = vma;
importer          788 mm/mmap.c      			VM_WARN_ON(expand != importer);
importer          797 mm/mmap.c      			importer = next;
importer          798 mm/mmap.c      			VM_WARN_ON(expand != importer);
importer          806 mm/mmap.c      		if (exporter && exporter->anon_vma && !importer->anon_vma) {
importer          809 mm/mmap.c      			importer->anon_vma = exporter->anon_vma;
importer          810 mm/mmap.c      			error = anon_vma_clone(importer, exporter);