unmap_region       46 mm/mmap.c      static void unmap_region(struct mm_struct *mm,
unmap_region     1241 mm/mmap.c      	unmap_region(mm, vma, prev, vma->vm_start, vma->vm_end);
unmap_region     1920 mm/mmap.c      	unmap_region(mm, vma, prev, start, end);