99 		if (add_to_page_cache_lru(page, mapping, page->index,  in read_cache_pages()
188 	unsigned long index = readahead_index(ractl);  in page_cache_ra_unbounded()  local
209 		struct page *page = xa_load(&mapping->i_pages, index + i);  in page_cache_ra_unbounded()
211 		BUG_ON(index + i != ractl->_index + ractl->_nr_pages);  in page_cache_ra_unbounded()
230 			page->index = index + i;  in page_cache_ra_unbounded()
232 		} else if (add_to_page_cache_lru(page, mapping, index + i,  in page_cache_ra_unbounded()
263 	unsigned long index = readahead_index(ractl);  in do_page_cache_ra()  local
271 	if (index > end_index)  in do_page_cache_ra()
274 	if (nr_to_read > end_index - index)  in do_page_cache_ra()
275 		nr_to_read = end_index - index + 1;  in do_page_cache_ra()
289 	unsigned long max_pages, index;  in force_page_cache_ra()  local
299 	index = readahead_index(ractl);  in force_page_cache_ra()
307 		ractl->_index = index;  in force_page_cache_ra()
310 		index += this_chunk;  in force_page_cache_ra()
397 				   pgoff_t index, unsigned long max)  in count_history_pages()  argument
402 	head = page_cache_prev_miss(mapping, index - 1, max);  in count_history_pages()
405 	return index - 1 - head;  in count_history_pages()
413 				 pgoff_t index,  in try_context_readahead()  argument
419 	size = count_history_pages(mapping, index, max);  in try_context_readahead()
432 	if (size >= index)  in try_context_readahead()
435 	ra->start = index;  in try_context_readahead()
452 	unsigned long index = readahead_index(ractl);  in ondemand_readahead()  local
467 	if (!index)  in ondemand_readahead()
474 	if ((index == (ra->start + ra->size - ra->async_size) ||  in ondemand_readahead()
475 	     index == (ra->start + ra->size))) {  in ondemand_readahead()
492 		start = page_cache_next_miss(ractl->mapping, index + 1,  in ondemand_readahead()
496 		if (!start || start - index > max_pages)  in ondemand_readahead()
500 		ra->size = start - index;	/* old async_size */  in ondemand_readahead()
519 	if (index - prev_index <= 1UL)  in ondemand_readahead()
526 	if (try_context_readahead(ractl->mapping, ra, index, req_size,  in ondemand_readahead()
538 	ra->start = index;  in ondemand_readahead()
549 	if (index == ra->start && ra->size == ra->async_size) {  in ondemand_readahead()