static void kasan_poison_element(mempool_t *pool, void *element)
{
if (pool->alloc == mempool_alloc_slab)
kasan_slab_free(pool->pool_data, element);
if (pool->alloc == mempool_kmalloc)
kasan_kfree(element);
if (pool->alloc == mempool_alloc_pages)
kasan_free_pages(element, (unsigned long)pool->pool_data);
}
void kasan_poison_kfree(void *ptr)
{
struct page *page;
page = virt_to_head_page(ptr);
if (unlikely(!PageSlab(page)))
kasan_poison_shadow(ptr, PAGE_SIZE << compound_order(page),
KASAN_FREE_PAGE);
else
kasan_slab_free(page->slab_cache, ptr);
}
