- while (total > point) {
- order = ilog2(total - point);
- n = 1 << order;
- kdebug("shave %lu/%lu @%lu", n, total - point, total);
- atomic_long_sub(n, &mmap_pages_allocated);
- total -= n;
- set_page_refcounted(pages + total);
- __free_pages(pages + total, order);
- }
+ total = point;
+ kdebug("try to alloc exact %lu pages", total);
+ base = alloc_pages_exact(len, GFP_KERNEL);
+ } else {
+ base = (void *)__get_free_pages(GFP_KERNEL, order);