On 10/12/17 15:45, Bart Van Assche wrote:
> diff --git a/lib/sgl_alloc.c b/lib/sgl_alloc.c
> new file mode 100644
> index 000000000000..d96b395dd5c8
> --- /dev/null
> +++ b/lib/sgl_alloc.c
> @@ -0,0 +1,102 @@
> +/**
> + * sgl_free_order - free a scatterlist and its pages
> + * @sg: Scatterlist with one or more elements
@sgl:
> + * @order: Second argument for __free_pages()
> + */
> +void sgl_free_order(struct scatterlist *sgl, int order)
> +{
> + struct scatterlist *sg;
> + struct page *page;
> +
> + for (sg = sgl; sg; sg = sg_next(sg)) {
> + page = sg_page(sg);
> + if (page)
> + __free_pages(page, order);
> + }
> + kfree(sgl);
> +}
> +EXPORT_SYMBOL(sgl_free_order);
> +
> +/**
> + * sgl_free - free a scatterlist and its pages
> + * @sg: Scatterlist with one or more elements
@sgl:
> + */
> +void sgl_free(struct scatterlist *sgl)
> +{
> + sgl_free_order(sgl, 0);
> +}
> +EXPORT_SYMBOL(sgl_free);
>
ta.
--
~Randy
