220 	struct page_list *pl;  in alloc_pl()  local
222 	pl = kmalloc(sizeof(*pl), gfp);  in alloc_pl()
223 	if (!pl)  in alloc_pl()
226 	pl->page = alloc_page(gfp | __GFP_HIGHMEM);  in alloc_pl()
227 	if (!pl->page) {  in alloc_pl()
228 		kfree(pl);  in alloc_pl()
232 	return pl;  in alloc_pl()
235 static void free_pl(struct page_list *pl)  in free_pl()  argument
237 	__free_page(pl->page);  in free_pl()
238 	kfree(pl);  in free_pl()
245 static void kcopyd_put_pages(struct dm_kcopyd_client *kc, struct page_list *pl)  in kcopyd_put_pages()  argument
250 		next = pl->next;  in kcopyd_put_pages()
253 			free_pl(pl);  in kcopyd_put_pages()
255 			pl->next = kc->pages;  in kcopyd_put_pages()
256 			kc->pages = pl;  in kcopyd_put_pages()
260 		pl = next;  in kcopyd_put_pages()
261 	} while (pl);  in kcopyd_put_pages()
267 	struct page_list *pl;  in kcopyd_get_pages()  local
272 		pl = alloc_pl(__GFP_NOWARN | __GFP_NORETRY | __GFP_KSWAPD_RECLAIM);  in kcopyd_get_pages()
273 		if (unlikely(!pl)) {  in kcopyd_get_pages()
275 			pl = kc->pages;  in kcopyd_get_pages()
276 			if (unlikely(!pl))  in kcopyd_get_pages()
278 			kc->pages = pl->next;  in kcopyd_get_pages()
281 		pl->next = *pages;  in kcopyd_get_pages()
282 		*pages = pl;  in kcopyd_get_pages()
296 static void drop_pages(struct page_list *pl)  in drop_pages()  argument
300 	while (pl) {  in drop_pages()
301 		next = pl->next;  in drop_pages()
302 		free_pl(pl);  in drop_pages()
303 		pl = next;  in drop_pages()
313 	struct page_list *pl = NULL, *next;  in client_reserve_pages()  local
318 			if (pl)  in client_reserve_pages()
319 				drop_pages(pl);  in client_reserve_pages()
322 		next->next = pl;  in client_reserve_pages()
323 		pl = next;  in client_reserve_pages()
327 	kcopyd_put_pages(kc, pl);  in client_reserve_pages()
561 		.mem.ptr.pl = job->pages,  in run_io_job()