197 	struct page_list *pl;  in alloc_pl()  local
199 	pl = kmalloc(sizeof(*pl), gfp);  in alloc_pl()
200 	if (!pl)  in alloc_pl()
203 	pl->page = alloc_page(gfp);  in alloc_pl()
204 	if (!pl->page) {  in alloc_pl()
205 		kfree(pl);  in alloc_pl()
209 	return pl;  in alloc_pl()
212 static void free_pl(struct page_list *pl)  in free_pl()  argument
214 	__free_page(pl->page);  in free_pl()
215 	kfree(pl);  in free_pl()
222 static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl)  in kcopyd_put_pages()  argument
227 		next = pl->next;  in kcopyd_put_pages()
230 			free_pl(pl);  in kcopyd_put_pages()
232 			pl->next = kc->pages;  in kcopyd_put_pages()
233 			kc->pages = pl;  in kcopyd_put_pages()
237 		pl = next;  in kcopyd_put_pages()
238 	} while (pl);  in kcopyd_put_pages()
244 	struct page_list *pl;  in kcopyd_get_pages()  local
249 		pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY | __GFP_KSWAPD_RECLAIM);  in kcopyd_get_pages()
250 		if (unlikely(!pl)) {  in kcopyd_get_pages()
252 			pl = kc->pages;  in kcopyd_get_pages()
253 			if (unlikely(!pl))  in kcopyd_get_pages()
255 			kc->pages = pl->next;  in kcopyd_get_pages()
258 		pl->next = *pages;  in kcopyd_get_pages()
259 		*pages = pl;  in kcopyd_get_pages()
273 static void drop_pages(struct page_list *pl)  in drop_pages()  argument
277 	while (pl) {  in drop_pages()
278 		next = pl->next;  in drop_pages()
279 		free_pl(pl);  in drop_pages()
280 		pl = next;  in drop_pages()
290 	struct page_list *pl = NULL, *next;  in client_reserve_pages()  local
295 			if (pl)  in client_reserve_pages()
296 				drop_pages(pl);  in client_reserve_pages()
299 		next->next = pl;  in client_reserve_pages()
300 		pl = next;  in client_reserve_pages()
304 	kcopyd_put_pages(kc, pl);  in client_reserve_pages()
536 		.mem.ptr.pl = job->pages,  in run_io_job()