196 	struct page_list *pl;  in alloc_pl()  local
198 	pl = kmalloc(sizeof(*pl), gfp);  in alloc_pl()
199 	if (!pl)  in alloc_pl()
202 	pl->page = alloc_page(gfp);  in alloc_pl()
203 	if (!pl->page) {  in alloc_pl()
204 		kfree(pl);  in alloc_pl()
208 	return pl;  in alloc_pl()
211 static void free_pl(struct page_list *pl)  in free_pl()  argument
213 	__free_page(pl->page);  in free_pl()
214 	kfree(pl);  in free_pl()
221 static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl)  in kcopyd_put_pages()  argument
226 		next = pl->next;  in kcopyd_put_pages()
229 			free_pl(pl);  in kcopyd_put_pages()
231 			pl->next = kc->pages;  in kcopyd_put_pages()
232 			kc->pages = pl;  in kcopyd_put_pages()
236 		pl = next;  in kcopyd_put_pages()
237 	} while (pl);  in kcopyd_put_pages()
243 	struct page_list *pl;  in kcopyd_get_pages()  local
248 		pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY | __GFP_KSWAPD_RECLAIM);  in kcopyd_get_pages()
249 		if (unlikely(!pl)) {  in kcopyd_get_pages()
251 			pl = kc->pages;  in kcopyd_get_pages()
252 			if (unlikely(!pl))  in kcopyd_get_pages()
254 			kc->pages = pl->next;  in kcopyd_get_pages()
257 		pl->next = *pages;  in kcopyd_get_pages()
258 		*pages = pl;  in kcopyd_get_pages()
272 static void drop_pages(struct page_list *pl)  in drop_pages()  argument
276 	while (pl) {  in drop_pages()
277 		next = pl->next;  in drop_pages()
278 		free_pl(pl);  in drop_pages()
279 		pl = next;  in drop_pages()
289 	struct page_list *pl = NULL, *next;  in client_reserve_pages()  local
294 			if (pl)  in client_reserve_pages()
295 				drop_pages(pl);  in client_reserve_pages()
298 		next->next = pl;  in client_reserve_pages()
299 		pl = next;  in client_reserve_pages()
303 	kcopyd_put_pages(kc, pl);  in client_reserve_pages()
537 		.mem.ptr.pl = job->pages,  in run_io_job()