195 	struct page_list *pl;  in alloc_pl()  local
197 	pl = kmalloc(sizeof(*pl), gfp);  in alloc_pl()
198 	if (!pl)  in alloc_pl()
201 	pl->page = alloc_page(gfp);  in alloc_pl()
202 	if (!pl->page) {  in alloc_pl()
203 		kfree(pl);  in alloc_pl()
207 	return pl;  in alloc_pl()
210 static void free_pl(struct page_list *pl)  in free_pl()  argument
212 	__free_page(pl->page);  in free_pl()
213 	kfree(pl);  in free_pl()
220 static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl)  in kcopyd_put_pages()  argument
225 		next = pl->next;  in kcopyd_put_pages()
228 			free_pl(pl);  in kcopyd_put_pages()
230 			pl->next = kc->pages;  in kcopyd_put_pages()
231 			kc->pages = pl;  in kcopyd_put_pages()
235 		pl = next;  in kcopyd_put_pages()
236 	} while (pl);  in kcopyd_put_pages()
242 	struct page_list *pl;  in kcopyd_get_pages()  local
247 		pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY | __GFP_KSWAPD_RECLAIM);  in kcopyd_get_pages()
248 		if (unlikely(!pl)) {  in kcopyd_get_pages()
250 			pl = kc->pages;  in kcopyd_get_pages()
251 			if (unlikely(!pl))  in kcopyd_get_pages()
253 			kc->pages = pl->next;  in kcopyd_get_pages()
256 		pl->next = *pages;  in kcopyd_get_pages()
257 		*pages = pl;  in kcopyd_get_pages()
271 static void drop_pages(struct page_list *pl)  in drop_pages()  argument
275 	while (pl) {  in drop_pages()
276 		next = pl->next;  in drop_pages()
277 		free_pl(pl);  in drop_pages()
278 		pl = next;  in drop_pages()
288 	struct page_list *pl = NULL, *next;  in client_reserve_pages()  local
293 			if (pl)  in client_reserve_pages()
294 				drop_pages(pl);  in client_reserve_pages()
297 		next->next = pl;  in client_reserve_pages()
298 		pl = next;  in client_reserve_pages()
302 	kcopyd_put_pages(kc, pl);  in client_reserve_pages()
501 		.mem.ptr.pl = job->pages,  in run_io_job()