do_munmap
do_munmap(mm, vdso_text_start, PAGE_SIZE, NULL);
do_munmap(mm, vdso_base, vvar_size, NULL);
do_munmap(mm, vvar_start, PAGE_SIZE, NULL);
do_munmap(mm, text_start, image->size, NULL);
do_munmap(mm, text_start, image->size, NULL);
do_munmap(mm, text_start, image->size, NULL);
do_munmap(mm, addr, image->size, NULL);
do_munmap(vma->vm_mm, from, len, NULL);
do_munmap(vma->vm_mm, vma->vm_start, len, NULL);
extern int do_munmap(struct mm_struct *, unsigned long, size_t,
do_munmap(mm, vma->vm_start, vma->vm_end - vma->vm_start, NULL);
err = do_munmap(mm, vrm->new_addr, vrm->new_len,
ret = do_munmap(mm, addr, len, NULL);
do_munmap(current->mm, vma->vm_start, len, NULL);