216 	struct page_list *pl;  in alloc_pl()  local
218 	pl = kmalloc(sizeof(*pl), gfp);  in alloc_pl()
219 	if (!pl)  in alloc_pl()
222 	pl->page = alloc_page(gfp);  in alloc_pl()
223 	if (!pl->page) {  in alloc_pl()
224 		kfree(pl);  in alloc_pl()
228 	return pl;  in alloc_pl()
231 static void free_pl(struct page_list *pl)  in free_pl()  argument
233 	__free_page(pl->page);  in free_pl()
234 	kfree(pl);  in free_pl()
241 static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl)  in kcopyd_put_pages()  argument
246 		next = pl->next;  in kcopyd_put_pages()
249 			free_pl(pl);  in kcopyd_put_pages()
251 			pl->next = kc->pages;  in kcopyd_put_pages()
252 			kc->pages = pl;  in kcopyd_put_pages()
256 		pl = next;  in kcopyd_put_pages()
257 	} while (pl);  in kcopyd_put_pages()
263 	struct page_list *pl;  in kcopyd_get_pages()  local
268 		pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY | __GFP_KSWAPD_RECLAIM);  in kcopyd_get_pages()
269 		if (unlikely(!pl)) {  in kcopyd_get_pages()
271 			pl = kc->pages;  in kcopyd_get_pages()
272 			if (unlikely(!pl))  in kcopyd_get_pages()
274 			kc->pages = pl->next;  in kcopyd_get_pages()
277 		pl->next = *pages;  in kcopyd_get_pages()
278 		*pages = pl;  in kcopyd_get_pages()
292 static void drop_pages(struct page_list *pl)  in drop_pages()  argument
296 	while (pl) {  in drop_pages()
297 		next = pl->next;  in drop_pages()
298 		free_pl(pl);  in drop_pages()
299 		pl = next;  in drop_pages()
309 	struct page_list *pl = NULL, *next;  in client_reserve_pages()  local
314 			if (pl)  in client_reserve_pages()
315 				drop_pages(pl);  in client_reserve_pages()
318 		next->next = pl;  in client_reserve_pages()
319 		pl = next;  in client_reserve_pages()
323 	kcopyd_put_pages(kc, pl);  in client_reserve_pages()
557 		.mem.ptr.pl = job->pages,  in run_io_job()