346 				 unsigned long req_size,  in try_context_readahead()  argument
357 	if (size <= req_size)  in try_context_readahead()
368 	ra->size = min(size + req_size, max);  in try_context_readahead()
381 		   unsigned long req_size)  in ondemand_readahead()  argument
422 		ra->size += req_size;  in ondemand_readahead()
431 	if (req_size > max)  in ondemand_readahead()
447 	if (try_context_readahead(mapping, ra, offset, req_size, max))  in ondemand_readahead()
454 	return __do_page_cache_readahead(mapping, filp, offset, req_size, 0);  in ondemand_readahead()
458 	ra->size = get_init_ra_size(req_size, max);  in ondemand_readahead()
459 	ra->async_size = ra->size > req_size ? ra->size - req_size : ra->size;  in ondemand_readahead()
491 			       pgoff_t offset, unsigned long req_size)  in page_cache_sync_readahead()  argument
499 		force_page_cache_readahead(mapping, filp, offset, req_size);  in page_cache_sync_readahead()
504 	ondemand_readahead(mapping, ra, filp, false, offset, req_size);  in page_cache_sync_readahead()
527 			   unsigned long req_size)  in page_cache_async_readahead()  argument
548 	ondemand_readahead(mapping, ra, filp, true, offset, req_size);  in page_cache_async_readahead()