351 				 unsigned long req_size,  in try_context_readahead()  argument
362 	if (size <= req_size)  in try_context_readahead()
373 	ra->size = min(size + req_size, max);  in try_context_readahead()
386 		   unsigned long req_size)  in ondemand_readahead()  argument
397 	if (req_size > max_pages && bdi->io_pages > max_pages)  in ondemand_readahead()
398 		max_pages = min(req_size, bdi->io_pages);  in ondemand_readahead()
436 		ra->size += req_size;  in ondemand_readahead()
445 	if (req_size > max_pages)  in ondemand_readahead()
461 	if (try_context_readahead(mapping, ra, offset, req_size, max_pages))  in ondemand_readahead()
468 	return __do_page_cache_readahead(mapping, filp, offset, req_size, 0);  in ondemand_readahead()
472 	ra->size = get_init_ra_size(req_size, max_pages);  in ondemand_readahead()
473 	ra->async_size = ra->size > req_size ? ra->size - req_size : ra->size;  in ondemand_readahead()
512 			       pgoff_t offset, unsigned long req_size)  in page_cache_sync_readahead()  argument
523 		force_page_cache_readahead(mapping, filp, offset, req_size);  in page_cache_sync_readahead()
528 	ondemand_readahead(mapping, ra, filp, false, offset, req_size);  in page_cache_sync_readahead()
551 			   unsigned long req_size)  in page_cache_async_readahead()  argument
575 	ondemand_readahead(mapping, ra, filp, true, offset, req_size);  in page_cache_async_readahead()