189  * @spd:	data to fill
192  *    @spd contains a map of pages and len/offset tuples, along with
198 		       struct splice_pipe_desc *spd)  in splice_to_pipe()  argument
200 	unsigned int spd_pages = spd->nr_pages;  in splice_to_pipe()
218 		buf->page = spd->pages[page_nr];  in splice_to_pipe()
219 		buf->offset = spd->partial[page_nr].offset;  in splice_to_pipe()
220 		buf->len = spd->partial[page_nr].len;  in splice_to_pipe()
221 		buf->private = spd->partial[page_nr].private;  in splice_to_pipe()
222 		buf->ops = spd->ops;  in splice_to_pipe()
230 		if (!--spd->nr_pages)  in splice_to_pipe()
239 		spd->spd_release(spd, page_nr++);  in splice_to_pipe()
270 int splice_grow_spd(const struct pipe_inode_info *pipe, struct splice_pipe_desc *spd)  in splice_grow_spd()  argument
274 	spd->nr_pages_max = max_usage;  in splice_grow_spd()
278 	spd->pages = kmalloc_objs(struct page *, max_usage);  in splice_grow_spd()
279 	spd->partial = kmalloc_objs(struct partial_page, max_usage);  in splice_grow_spd()
281 	if (spd->pages && spd->partial)  in splice_grow_spd()
284 	kfree(spd->pages);  in splice_grow_spd()
285 	kfree(spd->partial);  in splice_grow_spd()
289 void splice_shrink_spd(struct splice_pipe_desc *spd)  in splice_shrink_spd()  argument
291 	if (spd->nr_pages_max <= PIPE_DEF_BUFFERS)  in splice_shrink_spd()
294 	kfree(spd->pages);  in splice_shrink_spd()
295 	kfree(spd->partial);  in splice_shrink_spd()