Merge "arm64: dma-mapping: Split large pages when allocating in atomic context" into msm-4.8

				  dma_addr_t *handle, gfp_t gfp)

{

	struct page *page;

	struct page **pages;

	int count = size >> PAGE_SHIFT;

	int array_size = count * sizeof(struct page *);

	int i;

	void *addr;

	if (array_size <= PAGE_SIZE)

		pages = kzalloc(array_size, gfp);

	else

		pages = vzalloc(array_size);

	if (!pages)

		return NULL;

	addr = __alloc_from_pool(size, &page, gfp);

	if (!addr)

		return NULL;

		goto err_free;

	*handle = __iommu_create_mapping(dev, &page, size);

	for (i = 0; i < count ; i++)

		pages[i] = page + i;

	*handle = __iommu_create_mapping(dev, pages, size);

	if (*handle == DMA_ERROR_CODE)

		goto err_mapping;

	kvfree(pages);

	return addr;

err_mapping:

	__free_from_pool(addr, size);

err_free:

	kvfree(pages);

	return NULL;

}