171 	int err;  in add_to_swap()  local
197 	err = add_to_swap_cache(page, entry,  in add_to_swap()
200 	if (!err) {	/* Success */  in add_to_swap()
308 	int err;  in read_swap_cache_async()  local
333 		err = radix_tree_maybe_preload(gfp_mask & GFP_KERNEL);  in read_swap_cache_async()
334 		if (err)  in read_swap_cache_async()
340 		err = swapcache_prepare(entry);  in read_swap_cache_async()
341 		if (err == -EEXIST) {  in read_swap_cache_async()
361 		if (err) {		/* swp entry is obsolete ? */  in read_swap_cache_async()
369 		err = __add_to_swap_cache(new_page, entry);  in read_swap_cache_async()
370 		if (likely(!err)) {  in read_swap_cache_async()
387 	} while (err != -ENOMEM);  in read_swap_cache_async()